[INFO] fetching crate reverse 0.2.2...
[INFO] building reverse-0.2.2 against master#461e8078010433ff7de2db2aaae8a3cfb0847215 for pr-94962
[INFO] extracting crate reverse 0.2.2 into /workspace/builds/worker-93/source
[INFO] validating manifest of crates.io crate reverse 0.2.2 on toolchain 461e8078010433ff7de2db2aaae8a3cfb0847215
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reverse 0.2.2
[INFO] finished tweaking crates.io crate reverse 0.2.2
[INFO] tweaked toml for crates.io crate reverse 0.2.2 written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate crates.io crate reverse 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded approx_eq v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1974fa1ce7d6c4ed7abc1d853caed839c244c286991f60b3a570d7841bf0ead7
[INFO] running `Command { std: "docker" "start" "-a" "1974fa1ce7d6c4ed7abc1d853caed839c244c286991f60b3a570d7841bf0ead7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1974fa1ce7d6c4ed7abc1d853caed839c244c286991f60b3a570d7841bf0ead7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1974fa1ce7d6c4ed7abc1d853caed839c244c286991f60b3a570d7841bf0ead7", kill_on_drop: false }`
[INFO] [stdout] 1974fa1ce7d6c4ed7abc1d853caed839c244c286991f60b3a570d7841bf0ead7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b4d89a8619f8097fd60db52c63a195918b103b700bf2ad60e8d941abb3f4cf7
[INFO] running `Command { std: "docker" "start" "-a" "8b4d89a8619f8097fd60db52c63a195918b103b700bf2ad60e8d941abb3f4cf7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling reverse v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "8b4d89a8619f8097fd60db52c63a195918b103b700bf2ad60e8d941abb3f4cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b4d89a8619f8097fd60db52c63a195918b103b700bf2ad60e8d941abb3f4cf7", kill_on_drop: false }`
[INFO] [stdout] 8b4d89a8619f8097fd60db52c63a195918b103b700bf2ad60e8d941abb3f4cf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c69c04e423c3b5dff8e97b90f4f2ab6912dccd580b6fff110cab1d6c2c5fcd73
[INFO] running `Command { std: "docker" "start" "-a" "c69c04e423c3b5dff8e97b90f4f2ab6912dccd580b6fff110cab1d6c2c5fcd73", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling approx_eq v0.1.8
[INFO] [stderr]    Compiling reverse v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.09s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/reverse-5c2ce3d5acef041f)
[INFO] running `Command { std: "docker" "inspect" "c69c04e423c3b5dff8e97b90f4f2ab6912dccd580b6fff110cab1d6c2c5fcd73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c69c04e423c3b5dff8e97b90f4f2ab6912dccd580b6fff110cab1d6c2c5fcd73", kill_on_drop: false }`
[INFO] [stdout] c69c04e423c3b5dff8e97b90f4f2ab6912dccd580b6fff110cab1d6c2c5fcd73