[INFO] fetching crate serde-display 0.1.0...
[INFO] testing serde-display-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate serde-display 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate serde-display 0.1.0
[INFO] finished tweaking crates.io crate serde-display 0.1.0
[INFO] tweaked toml for crates.io crate serde-display 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-display 0.1.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde-display 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2226e9043ac3322adcbb8f2038daf63bdcbd9a106eac891ecde62579d9039f0
[INFO] running `Command { std: "docker" "start" "-a" "b2226e9043ac3322adcbb8f2038daf63bdcbd9a106eac891ecde62579d9039f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2226e9043ac3322adcbb8f2038daf63bdcbd9a106eac891ecde62579d9039f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2226e9043ac3322adcbb8f2038daf63bdcbd9a106eac891ecde62579d9039f0", kill_on_drop: false }`
[INFO] [stdout] b2226e9043ac3322adcbb8f2038daf63bdcbd9a106eac891ecde62579d9039f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19948eca4e2e8e7f4714646b59892020e2c5087a97799d86058695e4049c513b
[INFO] running `Command { std: "docker" "start" "-a" "19948eca4e2e8e7f4714646b59892020e2c5087a97799d86058695e4049c513b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde-display v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "19948eca4e2e8e7f4714646b59892020e2c5087a97799d86058695e4049c513b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19948eca4e2e8e7f4714646b59892020e2c5087a97799d86058695e4049c513b", kill_on_drop: false }`
[INFO] [stdout] 19948eca4e2e8e7f4714646b59892020e2c5087a97799d86058695e4049c513b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c43d2d6757343a66cd3a9ec90382d4581f71ec1d085a392a670f65cff311dc8b
[INFO] running `Command { std: "docker" "start" "-a" "c43d2d6757343a66cd3a9ec90382d4581f71ec1d085a392a670f65cff311dc8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde-display v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.98s
[INFO] running `Command { std: "docker" "inspect" "c43d2d6757343a66cd3a9ec90382d4581f71ec1d085a392a670f65cff311dc8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c43d2d6757343a66cd3a9ec90382d4581f71ec1d085a392a670f65cff311dc8b", kill_on_drop: false }`
[INFO] [stdout] c43d2d6757343a66cd3a9ec90382d4581f71ec1d085a392a670f65cff311dc8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4493180e7422223ed6e875e8237a0c9a4bcbd97e8db036468c4037d0ae3260cb
[INFO] running `Command { std: "docker" "start" "-a" "4493180e7422223ed6e875e8237a0c9a4bcbd97e8db036468c4037d0ae3260cb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_display-46173b62fcee5d01)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test tests::empty_map ... ok
[INFO] [stdout] test tests::empty_slice ... ok
[INFO] [stdout] test tests::newtype_struct ... ok
[INFO] [stdout] test tests::newtype_variant ... ok
[INFO] [stdout] test tests::simple_array ... ok
[INFO] [stdout] test tests::none ... ok
[INFO] [stdout] test tests::simple_map ... ok
[INFO] [stdout] test tests::simple_slice ... ok
[INFO] [stdout] test tests::simple_struct ... ok
[INFO] [stdout] test tests::struct_array ... ok
[INFO] [stdout] test tests::struct_variant ... ok
[INFO] [stdout] test tests::some_slice ... ok
[INFO] [stdout] test tests::unit_struct ... ok
[INFO] [stdout] test tests::unit_variant ... ok
[INFO] [stdout] test tests::tuple_variant ... ok
[INFO] [stdout] test tests::struct_map ... ok
[INFO] [stdout] test tests::nested_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_display
[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" "4493180e7422223ed6e875e8237a0c9a4bcbd97e8db036468c4037d0ae3260cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4493180e7422223ed6e875e8237a0c9a4bcbd97e8db036468c4037d0ae3260cb", kill_on_drop: false }`
[INFO] [stdout] 4493180e7422223ed6e875e8237a0c9a4bcbd97e8db036468c4037d0ae3260cb