[INFO] fetching crate steganography 1.0.2...
[INFO] testing steganography-1.0.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate steganography 1.0.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate steganography 1.0.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate steganography 1.0.2
[INFO] finished tweaking crates.io crate steganography 1.0.2
[INFO] tweaked toml for crates.io crate steganography 1.0.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c41a69a68859b2deab459d8407e8df8508dfe5ed5d7c8efa7c70f62eae536dc1
[INFO] running `Command { std: "docker" "start" "-a" "c41a69a68859b2deab459d8407e8df8508dfe5ed5d7c8efa7c70f62eae536dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c41a69a68859b2deab459d8407e8df8508dfe5ed5d7c8efa7c70f62eae536dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c41a69a68859b2deab459d8407e8df8508dfe5ed5d7c8efa7c70f62eae536dc1", kill_on_drop: false }`
[INFO] [stdout] c41a69a68859b2deab459d8407e8df8508dfe5ed5d7c8efa7c70f62eae536dc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06c8ca9794c4a6f4a2431caa856ac2187890134155b1dddee2b5ae85d0f83b3d
[INFO] running `Command { std: "docker" "start" "-a" "06c8ca9794c4a6f4a2431caa856ac2187890134155b1dddee2b5ae85d0f83b3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling image v0.21.3
[INFO] [stderr]    Compiling steganography v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.10s
[INFO] running `Command { std: "docker" "inspect" "06c8ca9794c4a6f4a2431caa856ac2187890134155b1dddee2b5ae85d0f83b3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06c8ca9794c4a6f4a2431caa856ac2187890134155b1dddee2b5ae85d0f83b3d", kill_on_drop: false }`
[INFO] [stdout] 06c8ca9794c4a6f4a2431caa856ac2187890134155b1dddee2b5ae85d0f83b3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fdc866afa1fb57a4a77dda4dd90fc8f295980775e0fea41b0a5c063e41e2fee
[INFO] running `Command { std: "docker" "start" "-a" "2fdc866afa1fb57a4a77dda4dd90fc8f295980775e0fea41b0a5c063e41e2fee", kill_on_drop: false }`
[INFO] [stderr]    Compiling steganography v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "2fdc866afa1fb57a4a77dda4dd90fc8f295980775e0fea41b0a5c063e41e2fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fdc866afa1fb57a4a77dda4dd90fc8f295980775e0fea41b0a5c063e41e2fee", kill_on_drop: false }`
[INFO] [stdout] 2fdc866afa1fb57a4a77dda4dd90fc8f295980775e0fea41b0a5c063e41e2fee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d3dd0606399d9b8aeebc03cae756fa0c5281d434cff746a2dcc92f2aaced512d
[INFO] running `Command { std: "docker" "start" "-a" "d3dd0606399d9b8aeebc03cae756fa0c5281d434cff746a2dcc92f2aaced512d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/steganography-f8273054c6ee7b7b)
[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/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-278aa47d945affe8)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_encode_decode_image ... ok
[INFO] [stdout] test test_encode_decode_alpha ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests steganography
[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" "d3dd0606399d9b8aeebc03cae756fa0c5281d434cff746a2dcc92f2aaced512d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3dd0606399d9b8aeebc03cae756fa0c5281d434cff746a2dcc92f2aaced512d", kill_on_drop: false }`
[INFO] [stdout] d3dd0606399d9b8aeebc03cae756fa0c5281d434cff746a2dcc92f2aaced512d