[INFO] fetching crate treesum 0.1.2...
[INFO] testing treesum-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate treesum 0.1.2 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate treesum 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate treesum 0.1.2
[INFO] finished tweaking crates.io crate treesum 0.1.2
[INFO] tweaked toml for crates.io crate treesum 0.1.2 written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate crates.io crate treesum 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.2.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.11
[INFO] [stderr]   Downloaded parallel-iterator v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a81cf6d2777c2faee762c7d8a0711984dbfcb4f807f11c8b350df2d69cae2c4
[INFO] running `Command { std: "docker" "start" "-a" "6a81cf6d2777c2faee762c7d8a0711984dbfcb4f807f11c8b350df2d69cae2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a81cf6d2777c2faee762c7d8a0711984dbfcb4f807f11c8b350df2d69cae2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a81cf6d2777c2faee762c7d8a0711984dbfcb4f807f11c8b350df2d69cae2c4", kill_on_drop: false }`
[INFO] [stdout] 6a81cf6d2777c2faee762c7d8a0711984dbfcb4f807f11c8b350df2d69cae2c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 813ffa0789540e98fd0b6d6acafa3c6adb4558788a97b6735f7269723a5df117
[INFO] running `Command { std: "docker" "start" "-a" "813ffa0789540e98fd0b6d6acafa3c6adb4558788a97b6735f7269723a5df117", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling parallel-iterator v0.1.5
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling treesum v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.28s
[INFO] running `Command { std: "docker" "inspect" "813ffa0789540e98fd0b6d6acafa3c6adb4558788a97b6735f7269723a5df117", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "813ffa0789540e98fd0b6d6acafa3c6adb4558788a97b6735f7269723a5df117", kill_on_drop: false }`
[INFO] [stdout] 813ffa0789540e98fd0b6d6acafa3c6adb4558788a97b6735f7269723a5df117
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d354d88448b15a3ab15816385bd65020ac9ab73cd45b514c17f8055334cdc6db
[INFO] running `Command { std: "docker" "start" "-a" "d354d88448b15a3ab15816385bd65020ac9ab73cd45b514c17f8055334cdc6db", kill_on_drop: false }`
[INFO] [stderr]    Compiling treesum v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "d354d88448b15a3ab15816385bd65020ac9ab73cd45b514c17f8055334cdc6db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d354d88448b15a3ab15816385bd65020ac9ab73cd45b514c17f8055334cdc6db", kill_on_drop: false }`
[INFO] [stdout] d354d88448b15a3ab15816385bd65020ac9ab73cd45b514c17f8055334cdc6db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ffb1f659a8126101b26a79da1a22d80dfbbe28ffdc0329e1679bef6c484a9f0
[INFO] running `Command { std: "docker" "start" "-a" "7ffb1f659a8126101b26a79da1a22d80dfbbe28ffdc0329e1679bef6c484a9f0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/treesum-bc9e6d8b19753a12)
[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" "7ffb1f659a8126101b26a79da1a22d80dfbbe28ffdc0329e1679bef6c484a9f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ffb1f659a8126101b26a79da1a22d80dfbbe28ffdc0329e1679bef6c484a9f0", kill_on_drop: false }`
[INFO] [stdout] 7ffb1f659a8126101b26a79da1a22d80dfbbe28ffdc0329e1679bef6c484a9f0