[INFO] fetching crate imgtiger 1.0.3...
[INFO] testing imgtiger-1.0.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate imgtiger 1.0.3 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate imgtiger 1.0.3 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 imgtiger 1.0.3
[INFO] finished tweaking crates.io crate imgtiger 1.0.3
[INFO] tweaked toml for crates.io crate imgtiger 1.0.3 written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] crate crates.io crate imgtiger 1.0.3 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 0e3ed6e530c6a606735faf7bbbc24e728bda29501139baa0c7cf9c74cda84619
[INFO] running `Command { std: "docker" "start" "-a" "0e3ed6e530c6a606735faf7bbbc24e728bda29501139baa0c7cf9c74cda84619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e3ed6e530c6a606735faf7bbbc24e728bda29501139baa0c7cf9c74cda84619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e3ed6e530c6a606735faf7bbbc24e728bda29501139baa0c7cf9c74cda84619", kill_on_drop: false }`
[INFO] [stdout] 0e3ed6e530c6a606735faf7bbbc24e728bda29501139baa0c7cf9c74cda84619
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 4f0a91ee59ba9d4e4cdb33c7af76cd918d6e4700f84a5e3c5aa21545e1a2eafe
[INFO] running `Command { std: "docker" "start" "-a" "4f0a91ee59ba9d4e4cdb33c7af76cd918d6e4700f84a5e3c5aa21545e1a2eafe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling backtrace v0.3.34
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling imgtiger v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.18s
[INFO] running `Command { std: "docker" "inspect" "4f0a91ee59ba9d4e4cdb33c7af76cd918d6e4700f84a5e3c5aa21545e1a2eafe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0a91ee59ba9d4e4cdb33c7af76cd918d6e4700f84a5e3c5aa21545e1a2eafe", kill_on_drop: false }`
[INFO] [stdout] 4f0a91ee59ba9d4e4cdb33c7af76cd918d6e4700f84a5e3c5aa21545e1a2eafe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] f6a1571e283d984119774c5d9d1adaab1c9fcc9cb6df76a42d97ada61ea73360
[INFO] running `Command { std: "docker" "start" "-a" "f6a1571e283d984119774c5d9d1adaab1c9fcc9cb6df76a42d97ada61ea73360", kill_on_drop: false }`
[INFO] [stderr]    Compiling imgtiger v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `Command { std: "docker" "inspect" "f6a1571e283d984119774c5d9d1adaab1c9fcc9cb6df76a42d97ada61ea73360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a1571e283d984119774c5d9d1adaab1c9fcc9cb6df76a42d97ada61ea73360", kill_on_drop: false }`
[INFO] [stdout] f6a1571e283d984119774c5d9d1adaab1c9fcc9cb6df76a42d97ada61ea73360
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 03d4726b546840c33a2914b302c5043be168d57a28a2921aa3c6e02e9d40be50
[INFO] running `Command { std: "docker" "start" "-a" "03d4726b546840c33a2914b302c5043be168d57a28a2921aa3c6e02e9d40be50", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/imgtiger-70e04050ce75087d)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test dimension::tests::dimension_to_string::cells_valid ... ok
[INFO] [stdout] test dimension::tests::dimension_to_string::auto_valid ... ok
[INFO] [stdout] test dimension::tests::dimension_to_string::percent_valid ... ok
[INFO] [stdout] test dimension::tests::parse_dimension::auto_valid ... ok
[INFO] [stdout] test dimension::tests::dimension_to_string::pixels_valid ... ok
[INFO] [stdout] test dimension::tests::parse_dimension::bad_format_invalid_format ... ok
[INFO] [stdout] test dimension::tests::parse_dimension::percent_valid ... ok
[INFO] [stdout] test dimension::tests::parse_dimension::cells_valid ... ok
[INFO] [stdout] test dimension::tests::parse_dimension::pixels_valid ... ok
[INFO] [stdout] test dimension::tests::parse_dimension::bad_unit_invalid_unit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/imgtiger-dda4d62c29061ed9)
[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 imgtiger
[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" "03d4726b546840c33a2914b302c5043be168d57a28a2921aa3c6e02e9d40be50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03d4726b546840c33a2914b302c5043be168d57a28a2921aa3c6e02e9d40be50", kill_on_drop: false }`
[INFO] [stdout] 03d4726b546840c33a2914b302c5043be168d57a28a2921aa3c6e02e9d40be50