[INFO] fetching crate slog_derive 0.2.0...
[INFO] testing slog_derive-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate slog_derive 0.2.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate slog_derive 0.2.0 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 slog_derive 0.2.0
[INFO] finished tweaking crates.io crate slog_derive 0.2.0
[INFO] tweaked toml for crates.io crate slog_derive 0.2.0 written to /workspace/builds/worker-21/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded erased-serde v0.3.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 69d31f72abe2d83ff66b9a94ae9bee143f9dd4ef16446efdabf08c39be85ef6d
[INFO] running `Command { std: "docker" "start" "-a" "69d31f72abe2d83ff66b9a94ae9bee143f9dd4ef16446efdabf08c39be85ef6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69d31f72abe2d83ff66b9a94ae9bee143f9dd4ef16446efdabf08c39be85ef6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69d31f72abe2d83ff66b9a94ae9bee143f9dd4ef16446efdabf08c39be85ef6d", kill_on_drop: false }`
[INFO] [stdout] 69d31f72abe2d83ff66b9a94ae9bee143f9dd4ef16446efdabf08c39be85ef6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 52634b6f689503726c578ca82c69a4f1cbb7249b33db2118b86366a4672eecf3
[INFO] running `Command { std: "docker" "start" "-a" "52634b6f689503726c578ca82c69a4f1cbb7249b33db2118b86366a4672eecf3", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog_derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `Command { std: "docker" "inspect" "52634b6f689503726c578ca82c69a4f1cbb7249b33db2118b86366a4672eecf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52634b6f689503726c578ca82c69a4f1cbb7249b33db2118b86366a4672eecf3", kill_on_drop: false }`
[INFO] [stdout] 52634b6f689503726c578ca82c69a4f1cbb7249b33db2118b86366a4672eecf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] d5bb8726bfb03f07c8dd1e302fb53279fde588f5d808d2ae88464435b5416d8f
[INFO] running `Command { std: "docker" "start" "-a" "d5bb8726bfb03f07c8dd1e302fb53279fde588f5d808d2ae88464435b5416d8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling slog_derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 17.52s
[INFO] running `Command { std: "docker" "inspect" "d5bb8726bfb03f07c8dd1e302fb53279fde588f5d808d2ae88464435b5416d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5bb8726bfb03f07c8dd1e302fb53279fde588f5d808d2ae88464435b5416d8f", kill_on_drop: false }`
[INFO] [stdout] d5bb8726bfb03f07c8dd1e302fb53279fde588f5d808d2ae88464435b5416d8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] e4d73ce38fe3b65483d1094081ec85a90981dd4ff39c608e3d5e213255059bd1
[INFO] running `Command { std: "docker" "start" "-a" "e4d73ce38fe3b65483d1094081ec85a90981dd4ff39c608e3d5e213255059bd1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/slog_derive-c4310ce299785f06)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test utils::tests::find_the_skip_attribute ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slog_derive
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/lib.rs - (line 70) ... ok
[INFO] [stdout] test src/lib.rs - (line 119) ... ok
[INFO] [stdout] test src/lib.rs - (line 90) ... ok
[INFO] [stdout] test src/lib.rs - (line 53) ... ok
[INFO] [stdout] test src/lib.rs - (line 21) ... ok
[INFO] [stdout] test src/lib.rs - (line 39) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e4d73ce38fe3b65483d1094081ec85a90981dd4ff39c608e3d5e213255059bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4d73ce38fe3b65483d1094081ec85a90981dd4ff39c608e3d5e213255059bd1", kill_on_drop: false }`
[INFO] [stdout] e4d73ce38fe3b65483d1094081ec85a90981dd4ff39c608e3d5e213255059bd1