[INFO] fetching crate rust_io_test 0.1.0...
[INFO] building rust_io_test-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate rust_io_test 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rust_io_test 0.1.0
[INFO] finished tweaking crates.io crate rust_io_test 0.1.0
[INFO] tweaked toml for crates.io crate rust_io_test 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_io_test 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust_io_test 0.1.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17ea5a35d88cbe8a398cf38221174f299187e409ed334c8d7fb5bc30c1c1e771
[INFO] running `Command { std: "docker" "start" "-a" "17ea5a35d88cbe8a398cf38221174f299187e409ed334c8d7fb5bc30c1c1e771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17ea5a35d88cbe8a398cf38221174f299187e409ed334c8d7fb5bc30c1c1e771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17ea5a35d88cbe8a398cf38221174f299187e409ed334c8d7fb5bc30c1c1e771", kill_on_drop: false }`
[INFO] [stdout] 17ea5a35d88cbe8a398cf38221174f299187e409ed334c8d7fb5bc30c1c1e771
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b94a1484dc9060d1fb2a9b6c9470cfe16e295886559951b3b09fb42cebf0ba5
[INFO] running `Command { std: "docker" "start" "-a" "4b94a1484dc9060d1fb2a9b6c9470cfe16e295886559951b3b09fb42cebf0ba5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_io_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "4b94a1484dc9060d1fb2a9b6c9470cfe16e295886559951b3b09fb42cebf0ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b94a1484dc9060d1fb2a9b6c9470cfe16e295886559951b3b09fb42cebf0ba5", kill_on_drop: false }`
[INFO] [stdout] 4b94a1484dc9060d1fb2a9b6c9470cfe16e295886559951b3b09fb42cebf0ba5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3a333b5efea5734eaef9ff36c06fe94a7c7d61c9df2d709772723fd1d141c9c
[INFO] running `Command { std: "docker" "start" "-a" "f3a333b5efea5734eaef9ff36c06fe94a7c7d61c9df2d709772723fd1d141c9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_io_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "f3a333b5efea5734eaef9ff36c06fe94a7c7d61c9df2d709772723fd1d141c9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3a333b5efea5734eaef9ff36c06fe94a7c7d61c9df2d709772723fd1d141c9c", kill_on_drop: false }`
[INFO] [stdout] f3a333b5efea5734eaef9ff36c06fe94a7c7d61c9df2d709772723fd1d141c9c