[INFO] fetching crate field_names 0.2.0...
[INFO] testing field_names-0.2.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate field_names 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate field_names 0.2.0
[INFO] finished tweaking crates.io crate field_names 0.2.0
[INFO] tweaked toml for crates.io crate field_names 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate field_names 0.2.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate field_names 0.2.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ba20a43b504485718ff26dd76363b938864e8a73afe2f794c8a1e5901de52c1
[INFO] running `Command { std: "docker" "start" "-a" "0ba20a43b504485718ff26dd76363b938864e8a73afe2f794c8a1e5901de52c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ba20a43b504485718ff26dd76363b938864e8a73afe2f794c8a1e5901de52c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ba20a43b504485718ff26dd76363b938864e8a73afe2f794c8a1e5901de52c1", kill_on_drop: false }`
[INFO] [stdout] 0ba20a43b504485718ff26dd76363b938864e8a73afe2f794c8a1e5901de52c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3a9657f8acf7c97bd9247788d877a816681d69bb1d6fd67b620615da68df552
[INFO] running `Command { std: "docker" "start" "-a" "a3a9657f8acf7c97bd9247788d877a816681d69bb1d6fd67b620615da68df552", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]    Compiling darling v0.13.1
[INFO] [stderr]    Compiling field_names v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.93s
[INFO] running `Command { std: "docker" "inspect" "a3a9657f8acf7c97bd9247788d877a816681d69bb1d6fd67b620615da68df552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3a9657f8acf7c97bd9247788d877a816681d69bb1d6fd67b620615da68df552", kill_on_drop: false }`
[INFO] [stdout] a3a9657f8acf7c97bd9247788d877a816681d69bb1d6fd67b620615da68df552
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ea9ed97fcb3fa21679cf1a301d4247d8003149c91da448cf1d7909dfbe62c52
[INFO] running `Command { std: "docker" "start" "-a" "5ea9ed97fcb3fa21679cf1a301d4247d8003149c91da448cf1d7909dfbe62c52", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]    Compiling darling v0.13.1
[INFO] [stderr]    Compiling field_names v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.27s
[INFO] running `Command { std: "docker" "inspect" "5ea9ed97fcb3fa21679cf1a301d4247d8003149c91da448cf1d7909dfbe62c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ea9ed97fcb3fa21679cf1a301d4247d8003149c91da448cf1d7909dfbe62c52", kill_on_drop: false }`
[INFO] [stdout] 5ea9ed97fcb3fa21679cf1a301d4247d8003149c91da448cf1d7909dfbe62c52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 71ccb8e61c8da6104cf409edee53cc608a727a80fb493d956b74d75f65c573ef
[INFO] running `Command { std: "docker" "start" "-a" "71ccb8e61c8da6104cf409edee53cc608a727a80fb493d956b74d75f65c573ef", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/field_names-67fb509f85e45704)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test fields::tests::simple ... ok
[INFO] [stdout] test fields::tests::skip_field ... ok
[INFO] [stdout] test variants::tests::simple ... ok
[INFO] [stdout] test variants::tests::skip_variant ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/keep_in_sync.rs (/opt/rustwide/target/debug/deps/keep_in_sync-a06f66db13960b75)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test base_and_partial_view_in_sync_ignore_source_order ... ok
[INFO] [stdout] test base_and_view_in_sync_preserve_source_order ... ok
[INFO] [stdout] test base_and_raw_not_in_sync - should panic ... ok
[INFO] [stderr]    Doc-tests field_names
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[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" "71ccb8e61c8da6104cf409edee53cc608a727a80fb493d956b74d75f65c573ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ccb8e61c8da6104cf409edee53cc608a727a80fb493d956b74d75f65c573ef", kill_on_drop: false }`
[INFO] [stdout] 71ccb8e61c8da6104cf409edee53cc608a727a80fb493d956b74d75f65c573ef