[INFO] fetching crate diff-struct 0.3.1...
[INFO] testing diff-struct-0.3.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate diff-struct 0.3.1 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate diff-struct 0.3.1 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 diff-struct 0.3.1
[INFO] finished tweaking crates.io crate diff-struct 0.3.1
[INFO] tweaked toml for crates.io crate diff-struct 0.3.1 written to /workspace/builds/worker-29/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded diff_derive v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 671138509bdaab2607855b7c83004723a9078b2779201782c59a1b78edae6d78
[INFO] running `Command { std: "docker" "start" "-a" "671138509bdaab2607855b7c83004723a9078b2779201782c59a1b78edae6d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "671138509bdaab2607855b7c83004723a9078b2779201782c59a1b78edae6d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "671138509bdaab2607855b7c83004723a9078b2779201782c59a1b78edae6d78", kill_on_drop: false }`
[INFO] [stdout] 671138509bdaab2607855b7c83004723a9078b2779201782c59a1b78edae6d78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] e78278a8931ea00644bd3a0ce7084da130fffc7c194ce785d7fb58a05cd1bada
[INFO] running `Command { std: "docker" "start" "-a" "e78278a8931ea00644bd3a0ce7084da130fffc7c194ce785d7fb58a05cd1bada", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling diff_derive v0.1.2
[INFO] [stderr]    Compiling diff-struct v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.63s
[INFO] running `Command { std: "docker" "inspect" "e78278a8931ea00644bd3a0ce7084da130fffc7c194ce785d7fb58a05cd1bada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e78278a8931ea00644bd3a0ce7084da130fffc7c194ce785d7fb58a05cd1bada", kill_on_drop: false }`
[INFO] [stdout] e78278a8931ea00644bd3a0ce7084da130fffc7c194ce785d7fb58a05cd1bada
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] e177788ea6364970856721ee8fde25ead66aa04a6a9bae26a876ebdde4551efe
[INFO] running `Command { std: "docker" "start" "-a" "e177788ea6364970856721ee8fde25ead66aa04a6a9bae26a876ebdde4551efe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling diff-struct v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `Command { std: "docker" "inspect" "e177788ea6364970856721ee8fde25ead66aa04a6a9bae26a876ebdde4551efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e177788ea6364970856721ee8fde25ead66aa04a6a9bae26a876ebdde4551efe", kill_on_drop: false }`
[INFO] [stdout] e177788ea6364970856721ee8fde25ead66aa04a6a9bae26a876ebdde4551efe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] a309da33e8cf7a759d5f45a2820ca130a2c7818b69a8d3c679152f94137c955f
[INFO] running `Command { std: "docker" "start" "-a" "a309da33e8cf7a759d5f45a2820ca130a2c7818b69a8d3c679152f94137c955f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/diff-ef8ae084e44fdc02)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::numeric_diffs ... ok
[INFO] [stdout] test tests::test_apply ... ok
[INFO] [stdout] test tests::test_derive ... ok
[INFO] [stdout] test tests::test_maps ... ok
[INFO] [stdout] test tests::test_opt ... ok
[INFO] [stdout] test tests::test_tuple_derive ... ok
[INFO] [stdout] test tests::test_vecs ... ok
[INFO] [stdout] test tests::test_char_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests diff
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Diff::identity (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a309da33e8cf7a759d5f45a2820ca130a2c7818b69a8d3c679152f94137c955f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a309da33e8cf7a759d5f45a2820ca130a2c7818b69a8d3c679152f94137c955f", kill_on_drop: false }`
[INFO] [stdout] a309da33e8cf7a759d5f45a2820ca130a2c7818b69a8d3c679152f94137c955f