[INFO] fetching crate workmux 0.1.187...
[INFO] checking workmux-0.1.187 against master#1fe72d35998dea48aeecaf7fc07783b0b553f24f for pr-154992-1
[INFO] extracting crate workmux 0.1.187 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate workmux 0.1.187
[INFO] finished tweaking crates.io crate workmux 0.1.187
[INFO] tweaked toml for crates.io crate workmux 0.1.187 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate workmux 0.1.187 on toolchain 1fe72d35998dea48aeecaf7fc07783b0b553f24f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate workmux 0.1.187 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01f950180e853e6be66f7c211a66d805cd03f56ffb30f7233cab63c108c320e8
[INFO] running `Command { std: "docker" "start" "-a" "01f950180e853e6be66f7c211a66d805cd03f56ffb30f7233cab63c108c320e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01f950180e853e6be66f7c211a66d805cd03f56ffb30f7233cab63c108c320e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01f950180e853e6be66f7c211a66d805cd03f56ffb30f7233cab63c108c320e8", kill_on_drop: false }`
[INFO] [stdout] 01f950180e853e6be66f7c211a66d805cd03f56ffb30f7233cab63c108c320e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e174837f6033deca3a43be07919555f219516d73976c08b6534f3137f3612be
[INFO] running `Command { std: "docker" "start" "-a" "7e174837f6033deca3a43be07919555f219516d73976c08b6534f3137f3612be", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
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[INFO] [stderr]     Checking icu_collections v2.1.1
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[INFO] [stderr]    Compiling darling v0.23.0
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[INFO] [stderr]    Compiling zvariant_derive v5.10.0
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[INFO] [stderr]     Checking ratatui v0.30.0
[INFO] [stderr]     Checking idna_adapter v1.2.1
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[INFO] [stderr]    Compiling zvariant v5.10.0
[INFO] [stderr]     Checking url v2.5.8
[INFO] [stderr]     Checking git-url-parse v0.6.0
[INFO] [stderr]     Checking zbus_names v4.3.1
[INFO] [stderr]    Compiling zbus_macros v5.14.0
[INFO] [stderr]     Checking zbus v5.14.0
[INFO] [stderr]     Checking notify-rust v4.12.0
[INFO] [stderr]     Checking workmux v0.1.187 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stderr`
[INFO] [stdout]     --> src/sandbox/rpc.rs:1353:22
[INFO] [stdout]      |
[INFO] [stdout] 1353 |         let (stdout, stderr, code) = exec_collect(&mut client, "ls", &[&ssh_dir]);
[INFO] [stdout]      |                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stderr`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.68s
[INFO] running `Command { std: "docker" "inspect" "7e174837f6033deca3a43be07919555f219516d73976c08b6534f3137f3612be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e174837f6033deca3a43be07919555f219516d73976c08b6534f3137f3612be", kill_on_drop: false }`
[INFO] [stdout] 7e174837f6033deca3a43be07919555f219516d73976c08b6534f3137f3612be