[INFO] fetching crate ron 0.7.0...
[INFO] testing ron-0.7.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate ron 0.7.0 into /workspace/builds/worker-44/source
[INFO] validating manifest of crates.io crate ron 0.7.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-44/source/rust-toolchain
[INFO] started tweaking crates.io crate ron 0.7.0
[INFO] finished tweaking crates.io crate ron 0.7.0
[INFO] tweaked toml for crates.io crate ron 0.7.0 written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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" "+62efba8a050c64249dab942951bb28f710208bc8" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76ac0cd30a289cc7da1fd366edc726aca2e26fcd975ca295d01a99bd203a050b
[INFO] running `Command { std: "docker" "start" "-a" "76ac0cd30a289cc7da1fd366edc726aca2e26fcd975ca295d01a99bd203a050b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76ac0cd30a289cc7da1fd366edc726aca2e26fcd975ca295d01a99bd203a050b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76ac0cd30a289cc7da1fd366edc726aca2e26fcd975ca295d01a99bd203a050b", kill_on_drop: false }`
[INFO] [stdout] 76ac0cd30a289cc7da1fd366edc726aca2e26fcd975ca295d01a99bd203a050b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14f5cc82100b9b1921af6272e9ec0a28df181aca5611443252128655ab0a676c
[INFO] running `Command { std: "docker" "start" "-a" "14f5cc82100b9b1921af6272e9ec0a28df181aca5611443252128655ab0a676c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling ron v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.42s
[INFO] running `Command { std: "docker" "inspect" "14f5cc82100b9b1921af6272e9ec0a28df181aca5611443252128655ab0a676c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f5cc82100b9b1921af6272e9ec0a28df181aca5611443252128655ab0a676c", kill_on_drop: false }`
[INFO] [stdout] 14f5cc82100b9b1921af6272e9ec0a28df181aca5611443252128655ab0a676c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8522372342e47a0fc20ff20c9c9d058ab9302ad43518b37bb0d435de94bdab78
[INFO] running `Command { std: "docker" "start" "-a" "8522372342e47a0fc20ff20c9c9d058ab9302ad43518b37bb0d435de94bdab78", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling ron v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `ron`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name roundtrip --edition=2018 tests/roundtrip.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=5eba195f8c01d9ad -C extra-filename=-5eba195f8c01d9ad --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-4563507a4eb0b4b2.rlib --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-05dfd5b5d1225bed.rlib --extern ron=/opt/rustwide/target/debug/deps/libron-419cf98ecc58b1c3.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-a5f5b06c56ad6ffd.rlib --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-bc1c79ff1edf11bf.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-66eb0729c6dffa0e.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8522372342e47a0fc20ff20c9c9d058ab9302ad43518b37bb0d435de94bdab78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8522372342e47a0fc20ff20c9c9d058ab9302ad43518b37bb0d435de94bdab78", kill_on_drop: false }`
[INFO] [stdout] 8522372342e47a0fc20ff20c9c9d058ab9302ad43518b37bb0d435de94bdab78