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cargo install is passed through unwrapped, so it invalidates fingerprints shared with wrapped cargo build

jbellis started Sep 14, 2026 in Ideas

1
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Close the learned incremental storage accounting and GC budget gap

jbellis started Sep 13, 2026 in Ideas

1
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Scope build-session inheritance across cargo run and long-lived applications

jbellis started Sep 11, 2026 in Ideas

1
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MBX_VERIFY=1 on a fresh clone: only the workspace crate's .rlib (and one unnamed stderr) diverge — expected, and how to audit across worktrees?

jeremy asked Sep 10, 2026 in Q&A · Unanswered

7
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GitHub Actions objects mode: the exported bundle keeps predictions from the job's last mbx command only, so a multi-command job restores nothing next time

jeremy asked Sep 10, 2026 in Q&A · Unanswered

3
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macOS: restores slower than a cold Cargo build; ~330 s of kernel time per build sits in the shims' unattributed phase (1.10.0 and main)

jeremy asked Sep 10, 2026 in Q&A · Unanswered

6
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Make routine cache diagnostics DEBUG and centralize log filtering

jbellis started Sep 10, 2026 in Ideas

1
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aws-lc-sys crate is very slow to build compared to native cargo build from a Nix environment

dax started Sep 9, 2026 in General

2
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Native Google Cloud Storage (gs://) backend with ADC / Metadata server authentication

ScDor started Sep 8, 2026 in Ideas

0
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Add mbx-scoped temporary directory configuration (TEMP/TMP) for Windows Dev Drives

marknefedov started Sep 6, 2026 in Ideas

0
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Cache hits mutate .rmeta inputs during an unchanged build

jbellis started Sep 3, 2026 in General

2
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Detected mid-compilation input mutation leaves stale output Cargo marks fresh

jbellis asked Sep 3, 2026 in Q&A · Unanswered

1
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Cargo builds cannot start when Unix-domain listeners are unavailable

jbellis started Sep 3, 2026 in Ideas

4
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Compiler-input timestamp verification across NFS clock domains

jbellis asked Sep 3, 2026 in Q&A · Unanswered

1
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Cargo registry mounted through a child symlink falls outside the CARGO_HOME path mapping

garysassano asked Sep 1, 2026 in Q&A · Unanswered

1
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model -Zthreads in the rustc cache adapter

pimeys asked Aug 31, 2026 in Q&A · Unanswered

4
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GitHub-backend restore cannot obtain ACTIONS_RUNTIME_TOKEN from a shell invocation

garysassano asked Aug 31, 2026 in Q&A · Closed · Unanswered

1
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mr-boxington-action ends in pre-job startup_failure on a RunsOn runner

garysassano asked Aug 31, 2026 in Q&A · Closed · Unanswered

1
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Build scripts without rerun-if directives re-execute on every build

pimeys started Aug 31, 2026 in Ideas

1

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Discussions

cargo install is passed through unwrapped, so it invalidates fingerprints shared with wrapped cargo build

Close the learned incremental storage accounting and GC budget gap

Scope build-session inheritance across cargo run and long-lived applications

MBX_VERIFY=1 on a fresh clone: only the workspace crate's .rlib (and one unnamed stderr) diverge — expected, and how to audit across worktrees?

GitHub Actions `objects` mode: the exported bundle keeps predictions from the job's last mbx command only, so a multi-command job restores nothing next time

macOS: restores slower than a cold Cargo build; ~330 s of kernel time per build sits in the shims' unattributed phase (1.10.0 and main)

Make routine cache diagnostics DEBUG and centralize log filtering

`aws-lc-sys` crate is very slow to build compared to native cargo build from a Nix environment

Native Google Cloud Storage (gs://) backend with ADC / Metadata server authentication

Add mbx-scoped temporary directory configuration (TEMP/TMP) for Windows Dev Drives

Cache hits mutate .rmeta inputs during an unchanged build

Detected mid-compilation input mutation leaves stale output Cargo marks fresh

Cargo builds cannot start when Unix-domain listeners are unavailable

Compiler-input timestamp verification across NFS clock domains

Cargo registry mounted through a child symlink falls outside the CARGO_HOME path mapping

model -Zthreads in the rustc cache adapter

GitHub-backend restore cannot obtain ACTIONS_RUNTIME_TOKEN from a shell invocation

mr-boxington-action ends in pre-job startup_failure on a RunsOn runner

Build scripts without rerun-if directives re-execute on every build