[INFO] fetching crate devker 0.1.6...
[INFO] testing devker-0.1.6 against 1.55.0 for beta-1.56-1
[INFO] extracting crate devker 0.1.6 into /workspace/builds/worker-68/source
[INFO] validating manifest of crates.io crate devker 0.1.6 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 devker 0.1.6
[INFO] finished tweaking crates.io crate devker 0.1.6
[INFO] tweaked toml for crates.io crate devker 0.1.6 written to /workspace/builds/worker-68/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] 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-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] 084f5565dfa59ff501fd4dc7a243dc97114288d184b086cd778cdf1fc200abf5
[INFO] running `Command { std: "docker" "start" "-a" "084f5565dfa59ff501fd4dc7a243dc97114288d184b086cd778cdf1fc200abf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "084f5565dfa59ff501fd4dc7a243dc97114288d184b086cd778cdf1fc200abf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "084f5565dfa59ff501fd4dc7a243dc97114288d184b086cd778cdf1fc200abf5", kill_on_drop: false }`
[INFO] [stdout] 084f5565dfa59ff501fd4dc7a243dc97114288d184b086cd778cdf1fc200abf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] a26fcbcbbd83f9463f5e5b5ad36d18f5809b0fcbaf4427ebc3a110e9f69cf500
[INFO] running `Command { std: "docker" "start" "-a" "a26fcbcbbd83f9463f5e5b5ad36d18f5809b0fcbaf4427ebc3a110e9f69cf500", kill_on_drop: false }`
[INFO] [stderr]    Compiling devker v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `Command { std: "docker" "inspect" "a26fcbcbbd83f9463f5e5b5ad36d18f5809b0fcbaf4427ebc3a110e9f69cf500", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a26fcbcbbd83f9463f5e5b5ad36d18f5809b0fcbaf4427ebc3a110e9f69cf500", kill_on_drop: false }`
[INFO] [stdout] a26fcbcbbd83f9463f5e5b5ad36d18f5809b0fcbaf4427ebc3a110e9f69cf500
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] 3b9683b58e787d8f1da06aae16ebd1a09d6e167cad1b205c25133c3f1ac1dbf0
[INFO] running `Command { std: "docker" "start" "-a" "3b9683b58e787d8f1da06aae16ebd1a09d6e167cad1b205c25133c3f1ac1dbf0", kill_on_drop: false }`
[INFO] [stderr]    Compiling devker v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "3b9683b58e787d8f1da06aae16ebd1a09d6e167cad1b205c25133c3f1ac1dbf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b9683b58e787d8f1da06aae16ebd1a09d6e167cad1b205c25133c3f1ac1dbf0", kill_on_drop: false }`
[INFO] [stdout] 3b9683b58e787d8f1da06aae16ebd1a09d6e167cad1b205c25133c3f1ac1dbf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] 0344d921e41a13c518b275addfe6ab0ed81a4401238e10700ea191de9ef8955b
[INFO] running `Command { std: "docker" "start" "-a" "0344d921e41a13c518b275addfe6ab0ed81a4401238e10700ea191de9ef8955b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/devker-a02614ba33a3e91b)
[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 devker
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/deflate.rs - deflate (line 6) ... ok
[INFO] [stdout] test src/zlib.rs - zlib (line 6) ... ok
[INFO] [stdout] test src/deflate.rs - deflate (line 21) ... ok
[INFO] [stdout] test src/zlib.rs - zlib (line 21) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0344d921e41a13c518b275addfe6ab0ed81a4401238e10700ea191de9ef8955b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0344d921e41a13c518b275addfe6ab0ed81a4401238e10700ea191de9ef8955b", kill_on_drop: false }`
[INFO] [stdout] 0344d921e41a13c518b275addfe6ab0ed81a4401238e10700ea191de9ef8955b