[INFO] fetching crate shotgun 2.2.1...
[INFO] testing shotgun-2.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate shotgun 2.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate shotgun 2.2.1 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 shotgun 2.2.1
[INFO] finished tweaking crates.io crate shotgun 2.2.1
[INFO] tweaked toml for crates.io crate shotgun 2.2.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate shotgun 2.2.1 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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 0b171a9caed476829471299a9a1d6a09a36b5c5fbec963ab6ab154ceff9759e9
[INFO] running `Command { std: "docker" "start" "-a" "0b171a9caed476829471299a9a1d6a09a36b5c5fbec963ab6ab154ceff9759e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b171a9caed476829471299a9a1d6a09a36b5c5fbec963ab6ab154ceff9759e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b171a9caed476829471299a9a1d6a09a36b5c5fbec963ab6ab154ceff9759e9", kill_on_drop: false }`
[INFO] [stdout] 0b171a9caed476829471299a9a1d6a09a36b5c5fbec963ab6ab154ceff9759e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 5c9020d6e24cf1c7f8f922f85569dcf26b58213519fca566fd640d6af26e439c
[INFO] running `Command { std: "docker" "start" "-a" "5c9020d6e24cf1c7f8f922f85569dcf26b58213519fca566fd640d6af26e439c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling bytemuck v1.2.0
[INFO] [stderr]    Compiling shotgun v2.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling deflate v0.8.4
[INFO] [stderr]    Compiling png v0.16.2
[INFO] [stderr]    Compiling image v0.23.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.81s
[INFO] running `Command { std: "docker" "inspect" "5c9020d6e24cf1c7f8f922f85569dcf26b58213519fca566fd640d6af26e439c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c9020d6e24cf1c7f8f922f85569dcf26b58213519fca566fd640d6af26e439c", kill_on_drop: false }`
[INFO] [stdout] 5c9020d6e24cf1c7f8f922f85569dcf26b58213519fca566fd640d6af26e439c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] c73cc33e3bb74c50da79d8681e58315b66488d48c36eba7df37271e72d9f74b8
[INFO] running `Command { std: "docker" "start" "-a" "c73cc33e3bb74c50da79d8681e58315b66488d48c36eba7df37271e72d9f74b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling shotgun v2.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "c73cc33e3bb74c50da79d8681e58315b66488d48c36eba7df37271e72d9f74b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c73cc33e3bb74c50da79d8681e58315b66488d48c36eba7df37271e72d9f74b8", kill_on_drop: false }`
[INFO] [stdout] c73cc33e3bb74c50da79d8681e58315b66488d48c36eba7df37271e72d9f74b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 8ccff267a71279814b1848ab3461c584164ce0e25df0d21ce7ef7b9ecd38c2de
[INFO] running `Command { std: "docker" "start" "-a" "8ccff267a71279814b1848ab3461c584164ce0e25df0d21ce7ef7b9ecd38c2de", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/shotgun-5b4dffe5b51ba759)
[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" "8ccff267a71279814b1848ab3461c584164ce0e25df0d21ce7ef7b9ecd38c2de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ccff267a71279814b1848ab3461c584164ce0e25df0d21ce7ef7b9ecd38c2de", kill_on_drop: false }`
[INFO] [stdout] 8ccff267a71279814b1848ab3461c584164ce0e25df0d21ce7ef7b9ecd38c2de