[INFO] fetching crate uu_tac 0.0.12...
[INFO] testing uu_tac-0.0.12 against 1.59.0 for beta-1.60-1
[INFO] extracting crate uu_tac 0.0.12 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate uu_tac 0.0.12 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uu_tac 0.0.12
[INFO] finished tweaking crates.io crate uu_tac 0.0.12
[INFO] tweaked toml for crates.io crate uu_tac 0.0.12 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate crates.io crate uu_tac 0.0.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acb3fe0b6f9954fb116e87b38a4a7c54a1f1c0b3b0b898cf1fd59f0d87e713b0
[INFO] running `Command { std: "docker" "start" "-a" "acb3fe0b6f9954fb116e87b38a4a7c54a1f1c0b3b0b898cf1fd59f0d87e713b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acb3fe0b6f9954fb116e87b38a4a7c54a1f1c0b3b0b898cf1fd59f0d87e713b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb3fe0b6f9954fb116e87b38a4a7c54a1f1c0b3b0b898cf1fd59f0d87e713b0", kill_on_drop: false }`
[INFO] [stdout] acb3fe0b6f9954fb116e87b38a4a7c54a1f1c0b3b0b898cf1fd59f0d87e713b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56f137259d06b3aa1a12ca372e8d50accadedbe645dca9bcd67d5f60adf7d80e
[INFO] running `Command { std: "docker" "start" "-a" "56f137259d06b3aa1a12ca372e8d50accadedbe645dca9bcd67d5f60adf7d80e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling memmap2 v0.5.2
[INFO] [stderr]    Compiling uucore_procs v0.0.12
[INFO] [stderr]    Compiling uu_tac v0.0.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.91s
[INFO] running `Command { std: "docker" "inspect" "56f137259d06b3aa1a12ca372e8d50accadedbe645dca9bcd67d5f60adf7d80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56f137259d06b3aa1a12ca372e8d50accadedbe645dca9bcd67d5f60adf7d80e", kill_on_drop: false }`
[INFO] [stdout] 56f137259d06b3aa1a12ca372e8d50accadedbe645dca9bcd67d5f60adf7d80e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] faab243a54519b03422a48d6bdf73920eea8152b88b8ad9df08d45ef585a461a
[INFO] running `Command { std: "docker" "start" "-a" "faab243a54519b03422a48d6bdf73920eea8152b88b8ad9df08d45ef585a461a", kill_on_drop: false }`
[INFO] [stderr]    Compiling uu_tac v0.0.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "faab243a54519b03422a48d6bdf73920eea8152b88b8ad9df08d45ef585a461a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faab243a54519b03422a48d6bdf73920eea8152b88b8ad9df08d45ef585a461a", kill_on_drop: false }`
[INFO] [stdout] faab243a54519b03422a48d6bdf73920eea8152b88b8ad9df08d45ef585a461a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7643c1897b37bd2a67d245cd14630a16001df242dc75f2038f0d2a131ed16fe9
[INFO] running `Command { std: "docker" "start" "-a" "7643c1897b37bd2a67d245cd14630a16001df242dc75f2038f0d2a131ed16fe9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/uu_tac-d10c3b894fed6a4a)
[INFO] [stdout] 
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tac-72418e7488cd7f3f)
[INFO] [stdout] 
[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] [stderr]    Doc-tests uu_tac
[INFO] [stdout] 
[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" "7643c1897b37bd2a67d245cd14630a16001df242dc75f2038f0d2a131ed16fe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7643c1897b37bd2a67d245cd14630a16001df242dc75f2038f0d2a131ed16fe9", kill_on_drop: false }`
[INFO] [stdout] 7643c1897b37bd2a67d245cd14630a16001df242dc75f2038f0d2a131ed16fe9