[INFO] fetching crate imghdr 0.7.0...
[INFO] testing imghdr-0.7.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate imghdr 0.7.0 into /workspace/builds/worker-48/source
[INFO] validating manifest of crates.io crate imghdr 0.7.0 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 imghdr 0.7.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate imghdr 0.7.0
[INFO] tweaked toml for crates.io crate imghdr 0.7.0 written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] 70e54def946683913d11466d2d3233d529d9686b7e8b69653102e7065b9d08fc
[INFO] running `Command { std: "docker" "start" "-a" "70e54def946683913d11466d2d3233d529d9686b7e8b69653102e7065b9d08fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70e54def946683913d11466d2d3233d529d9686b7e8b69653102e7065b9d08fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70e54def946683913d11466d2d3233d529d9686b7e8b69653102e7065b9d08fc", kill_on_drop: false }`
[INFO] [stdout] 70e54def946683913d11466d2d3233d529d9686b7e8b69653102e7065b9d08fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] 479a4654b1ceaf8e0bf40a86c341bfa7fc686d249792db95cb206a09c849b07d
[INFO] running `Command { std: "docker" "start" "-a" "479a4654b1ceaf8e0bf40a86c341bfa7fc686d249792db95cb206a09c849b07d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling imghdr v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "479a4654b1ceaf8e0bf40a86c341bfa7fc686d249792db95cb206a09c849b07d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "479a4654b1ceaf8e0bf40a86c341bfa7fc686d249792db95cb206a09c849b07d", kill_on_drop: false }`
[INFO] [stdout] 479a4654b1ceaf8e0bf40a86c341bfa7fc686d249792db95cb206a09c849b07d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] 7afb8a9a730a1c8e304a7f6318016635f9a02dd904a82faf90af30e084fcd0a5
[INFO] running `Command { std: "docker" "start" "-a" "7afb8a9a730a1c8e304a7f6318016635f9a02dd904a82faf90af30e084fcd0a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling imghdr v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.96s
[INFO] running `Command { std: "docker" "inspect" "7afb8a9a730a1c8e304a7f6318016635f9a02dd904a82faf90af30e084fcd0a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7afb8a9a730a1c8e304a7f6318016635f9a02dd904a82faf90af30e084fcd0a5", kill_on_drop: false }`
[INFO] [stdout] 7afb8a9a730a1c8e304a7f6318016635f9a02dd904a82faf90af30e084fcd0a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] 058c9347cee96ff6f864574d5ddb9c32d71b816e2520beabf4d3a7dcf4f61941
[INFO] running `Command { std: "docker" "start" "-a" "058c9347cee96ff6f864574d5ddb9c32d71b816e2520beabf4d3a7dcf4f61941", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/imghdr-4248061e5bd98363)
[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]      Running tests/mod.rs (/opt/rustwide/target/debug/deps/mod-26465bac01123f72)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test test_bgp ... ok
[INFO] [stdout] test test_flif ... ok
[INFO] [stdout] test test_exr ... ok
[INFO] [stdout] test test_bmp ... ok
[INFO] [stdout] test test_gif ... ok
[INFO] [stdout] test test_jpeg ... ok
[INFO] [stdout] test test_ico ... ok
[INFO] [stdout] test test_not_a_image ... ok
[INFO] [stdout] test test_pbm ... ok
[INFO] [stdout] test test_pgm ... ok
[INFO] [stdout] test test_png ... ok
[INFO] [stdout] test test_ppm ... ok
[INFO] [stdout] test test_rgb ... ok
[INFO] [stdout] test test_tiff ... ok
[INFO] [stdout] test test_rgbe ... ok
[INFO] [stdout] test test_webp ... ok
[INFO] [stdout] test test_xbm ... ok
[INFO] [stdout] test test_not_a_file - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests imghdr
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/std_ext.rs - std_ext::from_file (line 45) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/std_ext.rs - std_ext::from_reader (line 19) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.38s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "058c9347cee96ff6f864574d5ddb9c32d71b816e2520beabf4d3a7dcf4f61941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "058c9347cee96ff6f864574d5ddb9c32d71b816e2520beabf4d3a7dcf4f61941", kill_on_drop: false }`
[INFO] [stdout] 058c9347cee96ff6f864574d5ddb9c32d71b816e2520beabf4d3a7dcf4f61941