[INFO] fetching crate os-unfair-lock 0.3.0...
[INFO] building os-unfair-lock-0.3.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate os-unfair-lock 0.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate os-unfair-lock 0.3.0
[INFO] finished tweaking crates.io crate os-unfair-lock 0.3.0
[INFO] tweaked toml for crates.io crate os-unfair-lock 0.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate os-unfair-lock 0.3.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52f2cfcbcb520e20e573a9e14a8f0763343f79633567e62b49ebbc5a59405b2c
[INFO] running `Command { std: "docker" "start" "-a" "52f2cfcbcb520e20e573a9e14a8f0763343f79633567e62b49ebbc5a59405b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52f2cfcbcb520e20e573a9e14a8f0763343f79633567e62b49ebbc5a59405b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52f2cfcbcb520e20e573a9e14a8f0763343f79633567e62b49ebbc5a59405b2c", kill_on_drop: false }`
[INFO] [stdout] 52f2cfcbcb520e20e573a9e14a8f0763343f79633567e62b49ebbc5a59405b2c
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f1e975ef2672c911d65855396089ae1a442ccbbbff0e8b7813ed2174d858256
[INFO] running `Command { std: "docker" "start" "-a" "5f1e975ef2672c911d65855396089ae1a442ccbbbff0e8b7813ed2174d858256", kill_on_drop: false }`
[INFO] [stderr]    Compiling os-unfair-lock v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "5f1e975ef2672c911d65855396089ae1a442ccbbbff0e8b7813ed2174d858256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f1e975ef2672c911d65855396089ae1a442ccbbbff0e8b7813ed2174d858256", kill_on_drop: false }`
[INFO] [stdout] 5f1e975ef2672c911d65855396089ae1a442ccbbbff0e8b7813ed2174d858256
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8cdd27e49adb2a50ae0822d1fa69de8cd3dccf858db5d4497f27cb03379b470
[INFO] running `Command { std: "docker" "start" "-a" "c8cdd27e49adb2a50ae0822d1fa69de8cd3dccf858db5d4497f27cb03379b470", kill_on_drop: false }`
[INFO] [stderr]    Compiling os-unfair-lock v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "c8cdd27e49adb2a50ae0822d1fa69de8cd3dccf858db5d4497f27cb03379b470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8cdd27e49adb2a50ae0822d1fa69de8cd3dccf858db5d4497f27cb03379b470", kill_on_drop: false }`
[INFO] [stdout] c8cdd27e49adb2a50ae0822d1fa69de8cd3dccf858db5d4497f27cb03379b470