[INFO] cloning repository https://github.com/signaes/is_palindrom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/signaes/is_palindrom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsignaes%2Fis_palindrom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsignaes%2Fis_palindrom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0e44b9a58afc9c8f52e66f50387c8b7e67ba9e5
[INFO] testing signaes/is_palindrom against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsignaes%2Fis_palindrom" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/signaes/is_palindrom on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/signaes/is_palindrom
[INFO] finished tweaking git repo https://github.com/signaes/is_palindrom
[INFO] tweaked toml for git repo https://github.com/signaes/is_palindrom written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/signaes/is_palindrom already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d68e8cddd85f895dae142b3a67a7c20e8eece8929b013be373e92b1ab8b9f4cc
[INFO] running `Command { std: "docker" "start" "-a" "d68e8cddd85f895dae142b3a67a7c20e8eece8929b013be373e92b1ab8b9f4cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d68e8cddd85f895dae142b3a67a7c20e8eece8929b013be373e92b1ab8b9f4cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d68e8cddd85f895dae142b3a67a7c20e8eece8929b013be373e92b1ab8b9f4cc", kill_on_drop: false }`
[INFO] [stdout] d68e8cddd85f895dae142b3a67a7c20e8eece8929b013be373e92b1ab8b9f4cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71f6692b1257bedef2591f8a51069389472c04bbc1d77f60148e98d6170cac08
[INFO] running `Command { std: "docker" "start" "-a" "71f6692b1257bedef2591f8a51069389472c04bbc1d77f60148e98d6170cac08", kill_on_drop: false }`
[INFO] [stderr]    Compiling is_palindrom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "71f6692b1257bedef2591f8a51069389472c04bbc1d77f60148e98d6170cac08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f6692b1257bedef2591f8a51069389472c04bbc1d77f60148e98d6170cac08", kill_on_drop: false }`
[INFO] [stdout] 71f6692b1257bedef2591f8a51069389472c04bbc1d77f60148e98d6170cac08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32c75afb1860806aec4314a340b9288e310e85588bf3be8ecc07135de16e6160
[INFO] running `Command { std: "docker" "start" "-a" "32c75afb1860806aec4314a340b9288e310e85588bf3be8ecc07135de16e6160", kill_on_drop: false }`
[INFO] [stderr]    Compiling is_palindrom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "32c75afb1860806aec4314a340b9288e310e85588bf3be8ecc07135de16e6160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c75afb1860806aec4314a340b9288e310e85588bf3be8ecc07135de16e6160", kill_on_drop: false }`
[INFO] [stdout] 32c75afb1860806aec4314a340b9288e310e85588bf3be8ecc07135de16e6160
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 343cc66237637d5d96e3e2b66564950d920518b89e2847fed65a25ca9aeb6346
[INFO] running `Command { std: "docker" "start" "-a" "343cc66237637d5d96e3e2b66564950d920518b89e2847fed65a25ca9aeb6346", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/is_palindrom-cdfb715a53f03dd2)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "343cc66237637d5d96e3e2b66564950d920518b89e2847fed65a25ca9aeb6346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "343cc66237637d5d96e3e2b66564950d920518b89e2847fed65a25ca9aeb6346", kill_on_drop: false }`
[INFO] [stdout] 343cc66237637d5d96e3e2b66564950d920518b89e2847fed65a25ca9aeb6346