[INFO] fetching crate workmux 0.1.189...
[INFO] checking workmux-0.1.189 against master#57f772f25c5ce2bd870d6f8c3ab318eaee5a3326 for pr-133502-22
[INFO] extracting crate workmux 0.1.189 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate workmux 0.1.189
[INFO] finished tweaking crates.io crate workmux 0.1.189
[INFO] tweaked toml for crates.io crate workmux 0.1.189 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate workmux 0.1.189 on toolchain 57f772f25c5ce2bd870d6f8c3ab318eaee5a3326
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate workmux 0.1.189 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" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4414a55c8ab154d40ab0aa512428825561dde1bbc51f61ff8fc36bee0ef55cb7
[INFO] running `Command { std: "docker" "start" "-a" "4414a55c8ab154d40ab0aa512428825561dde1bbc51f61ff8fc36bee0ef55cb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4414a55c8ab154d40ab0aa512428825561dde1bbc51f61ff8fc36bee0ef55cb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4414a55c8ab154d40ab0aa512428825561dde1bbc51f61ff8fc36bee0ef55cb7", kill_on_drop: false }`
[INFO] [stdout] 4414a55c8ab154d40ab0aa512428825561dde1bbc51f61ff8fc36bee0ef55cb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73fb1df07f125da823113b826755c1f2e2ee9b6c8ecf67a7dd0433423bab3dff
[INFO] running `Command { std: "docker" "start" "-a" "73fb1df07f125da823113b826755c1f2e2ee9b6c8ecf67a7dd0433423bab3dff", kill_on_drop: false }`
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[INFO] [stderr]     Checking workmux v0.1.189 (/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 1m 12s
[INFO] running `Command { std: "docker" "inspect" "73fb1df07f125da823113b826755c1f2e2ee9b6c8ecf67a7dd0433423bab3dff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73fb1df07f125da823113b826755c1f2e2ee9b6c8ecf67a7dd0433423bab3dff", kill_on_drop: false }`
[INFO] [stdout] 73fb1df07f125da823113b826755c1f2e2ee9b6c8ecf67a7dd0433423bab3dff
