[INFO] fetching crate qu 0.2.1...
[INFO] testing qu-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate qu 0.2.1 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate qu 0.2.1 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 qu 0.2.1
[INFO] finished tweaking crates.io crate qu 0.2.1
[INFO] tweaked toml for crates.io crate qu 0.2.1 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate qu 0.2.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 390dcc48fe1a2717078e8b2360bbf5b92223ac350436fe4ebfbf9b5c0dd03800
[INFO] running `Command { std: "docker" "start" "-a" "390dcc48fe1a2717078e8b2360bbf5b92223ac350436fe4ebfbf9b5c0dd03800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "390dcc48fe1a2717078e8b2360bbf5b92223ac350436fe4ebfbf9b5c0dd03800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "390dcc48fe1a2717078e8b2360bbf5b92223ac350436fe4ebfbf9b5c0dd03800", kill_on_drop: false }`
[INFO] [stdout] 390dcc48fe1a2717078e8b2360bbf5b92223ac350436fe4ebfbf9b5c0dd03800
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] d7e31726c9596b3c9d32cba9758e9944e49009f54f99ea07c333ad1871c152ad
[INFO] running `Command { std: "docker" "start" "-a" "d7e31726c9596b3c9d32cba9758e9944e49009f54f99ea07c333ad1871c152ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling qu-derive v0.2.0
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling qu v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.80s
[INFO] running `Command { std: "docker" "inspect" "d7e31726c9596b3c9d32cba9758e9944e49009f54f99ea07c333ad1871c152ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7e31726c9596b3c9d32cba9758e9944e49009f54f99ea07c333ad1871c152ad", kill_on_drop: false }`
[INFO] [stdout] d7e31726c9596b3c9d32cba9758e9944e49009f54f99ea07c333ad1871c152ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 6cd9c1bffc30ac07c57847f3b204f5006caa10e6e1fccfcd11eb9aa82b814375
[INFO] running `Command { std: "docker" "start" "-a" "6cd9c1bffc30ac07c57847f3b204f5006caa10e6e1fccfcd11eb9aa82b814375", kill_on_drop: false }`
[INFO] [stderr]    Compiling qu v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `Command { std: "docker" "inspect" "6cd9c1bffc30ac07c57847f3b204f5006caa10e6e1fccfcd11eb9aa82b814375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cd9c1bffc30ac07c57847f3b204f5006caa10e6e1fccfcd11eb9aa82b814375", kill_on_drop: false }`
[INFO] [stdout] 6cd9c1bffc30ac07c57847f3b204f5006caa10e6e1fccfcd11eb9aa82b814375
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 2560b65c5aabe434b29af3dd7e3c724f6dec818c746ba82a96aaf5d8f7458618
[INFO] running `Command { std: "docker" "start" "-a" "2560b65c5aabe434b29af3dd7e3c724f6dec818c746ba82a96aaf5d8f7458618", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/qu-60e1072314f0ddae)
[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 qu
[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" "2560b65c5aabe434b29af3dd7e3c724f6dec818c746ba82a96aaf5d8f7458618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2560b65c5aabe434b29af3dd7e3c724f6dec818c746ba82a96aaf5d8f7458618", kill_on_drop: false }`
[INFO] [stdout] 2560b65c5aabe434b29af3dd7e3c724f6dec818c746ba82a96aaf5d8f7458618