[INFO] fetching crate chemp 0.9.6...
[INFO] checking chemp-0.9.6 against try#dd2d87b6cc31907ae305875eb6be399783dc0256 for pr-143929
[INFO] extracting crate chemp 0.9.6 into /workspace/builds/worker-2-tc2/source
[INFO] checking chemp-0.9.6 against try#dd2d87b6cc31907ae305875eb6be399783dc0256 for pr-143929
[INFO] extracting crate chemp 0.9.6 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate chemp 0.9.6
[INFO] finished tweaking crates.io crate chemp 0.9.6
[INFO] tweaked toml for crates.io crate chemp 0.9.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate chemp 0.9.6 on toolchain dd2d87b6cc31907ae305875eb6be399783dc0256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9adc327c2b55fb1a9b637d820f751f65509cfd91e96fccebec0af715cfda9de2
[INFO] running `Command { std: "docker" "start" "-a" "9adc327c2b55fb1a9b637d820f751f65509cfd91e96fccebec0af715cfda9de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9adc327c2b55fb1a9b637d820f751f65509cfd91e96fccebec0af715cfda9de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9adc327c2b55fb1a9b637d820f751f65509cfd91e96fccebec0af715cfda9de2", kill_on_drop: false }`
[INFO] [stdout] 9adc327c2b55fb1a9b637d820f751f65509cfd91e96fccebec0af715cfda9de2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 619096312ad92d985718cf9970ba046d848fc875ecefe754ce795996d6e082f0
[INFO] running `Command { std: "docker" "start" "-a" "619096312ad92d985718cf9970ba046d848fc875ecefe754ce795996d6e082f0", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking chemp v0.9.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "619096312ad92d985718cf9970ba046d848fc875ecefe754ce795996d6e082f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "619096312ad92d985718cf9970ba046d848fc875ecefe754ce795996d6e082f0", kill_on_drop: false }`
[INFO] [stdout] 619096312ad92d985718cf9970ba046d848fc875ecefe754ce795996d6e082f0