[INFO] fetching crate imgtiger 1.0.3...
[INFO] testing imgtiger-1.0.3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate imgtiger 1.0.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate imgtiger 1.0.3 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-0/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1b5b786abdd279a0e91fbf1a70c2ff7884f324680e54734138cf344824b331c9
[INFO] running `Command { std: "docker" "start" "-a" "1b5b786abdd279a0e91fbf1a70c2ff7884f324680e54734138cf344824b331c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b5b786abdd279a0e91fbf1a70c2ff7884f324680e54734138cf344824b331c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b5b786abdd279a0e91fbf1a70c2ff7884f324680e54734138cf344824b331c9", kill_on_drop: false }`
[INFO] [stdout] 1b5b786abdd279a0e91fbf1a70c2ff7884f324680e54734138cf344824b331c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 377c6f8dd9873e45e97f21c0abe9383fbdf0d73b66fb37358f807a248e70fb68
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "377c6f8dd9873e45e97f21c0abe9383fbdf0d73b66fb37358f807a248e70fb68", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.9
[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 aho-corasick v0.7.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[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 41.66s
[INFO] running `Command { std: "docker" "inspect" "377c6f8dd9873e45e97f21c0abe9383fbdf0d73b66fb37358f807a248e70fb68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "377c6f8dd9873e45e97f21c0abe9383fbdf0d73b66fb37358f807a248e70fb68", kill_on_drop: false }`
[INFO] [stdout] 377c6f8dd9873e45e97f21c0abe9383fbdf0d73b66fb37358f807a248e70fb68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3b68ef6502e3415299c679b7fcc622df3ff8093a4f322da1e1478e37ab6e9f7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b3b68ef6502e3415299c679b7fcc622df3ff8093a4f322da1e1478e37ab6e9f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling imgtiger v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `Command { std: "docker" "inspect" "b3b68ef6502e3415299c679b7fcc622df3ff8093a4f322da1e1478e37ab6e9f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3b68ef6502e3415299c679b7fcc622df3ff8093a4f322da1e1478e37ab6e9f7", kill_on_drop: false }`
[INFO] [stdout] b3b68ef6502e3415299c679b7fcc622df3ff8093a4f322da1e1478e37ab6e9f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5d505d3b955b93b1227570ab5b5dea3dbec2ab7a8f5a92b8172a727aa3adc4f1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5d505d3b955b93b1227570ab5b5dea3dbec2ab7a8f5a92b8172a727aa3adc4f1", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] running 10 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/imgtiger-3e08032aa7afbfe1
[INFO] [stdout] test dimension::tests::dimension_to_string::auto_valid ... ok
[INFO] [stdout] test dimension::tests::parse_dimension::auto_valid ... ok
[INFO] [stdout] test dimension::tests::dimension_to_string::percent_valid ... ok
[INFO] [stdout] test dimension::tests::dimension_to_string::pixels_valid ... ok
[INFO] [stdout] test dimension::tests::dimension_to_string::cells_valid ... ok
[INFO] [stdout] test dimension::tests::parse_dimension::bad_format_invalid_format ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/imgtiger-c73a39f04cb0abdc
[INFO] [stdout] test dimension::tests::parse_dimension::cells_valid ... ok
[INFO] [stderr]    Doc-tests imgtiger
[INFO] [stdout] test dimension::tests::parse_dimension::percent_valid ... ok
[INFO] [stdout] test dimension::tests::parse_dimension::bad_unit_invalid_unit ... ok
[INFO] [stdout] test dimension::tests::parse_dimension::pixels_valid ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[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] [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" "5d505d3b955b93b1227570ab5b5dea3dbec2ab7a8f5a92b8172a727aa3adc4f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d505d3b955b93b1227570ab5b5dea3dbec2ab7a8f5a92b8172a727aa3adc4f1", kill_on_drop: false }`
[INFO] [stdout] 5d505d3b955b93b1227570ab5b5dea3dbec2ab7a8f5a92b8172a727aa3adc4f1