[INFO] fetching crate prc-rs 1.3.2...
[INFO] testing prc-rs-1.3.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate prc-rs 1.3.2 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate prc-rs 1.3.2 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 prc-rs 1.3.2
[INFO] finished tweaking crates.io crate prc-rs 1.3.2
[INFO] tweaked toml for crates.io crate prc-rs 1.3.2 written to /workspace/builds/worker-27/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 crc v1.8.1
[INFO] [stderr]   Downloaded compile-time-crc32 v0.1.2
[INFO] [stderr]   Downloaded bimap v0.4.0
[INFO] [stderr]   Downloaded compile-time-crc32-impl v0.1.0
[INFO] [stderr]   Downloaded build_const v0.2.2
[INFO] [stderr]   Downloaded diff_derive v0.1.2
[INFO] [stderr]   Downloaded quick-xml v0.18.1
[INFO] [stderr]   Downloaded diff-struct v0.3.1
[INFO] [stderr]   Downloaded hash40 v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 4ceccda4c76d3f68ef5ce0e7f7da312dcea1d95f34bcc27881adf2f8b52f2fe3
[INFO] running `Command { std: "docker" "start" "-a" "4ceccda4c76d3f68ef5ce0e7f7da312dcea1d95f34bcc27881adf2f8b52f2fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ceccda4c76d3f68ef5ce0e7f7da312dcea1d95f34bcc27881adf2f8b52f2fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ceccda4c76d3f68ef5ce0e7f7da312dcea1d95f34bcc27881adf2f8b52f2fe3", kill_on_drop: false }`
[INFO] [stdout] 4ceccda4c76d3f68ef5ce0e7f7da312dcea1d95f34bcc27881adf2f8b52f2fe3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] d0b59d4b244000d6c9761280ec7d660ef04b55d2007bb813bba322b67f8f6f78
[INFO] running `Command { std: "docker" "start" "-a" "d0b59d4b244000d6c9761280ec7d660ef04b55d2007bb813bba322b67f8f6f78", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling bimap v0.4.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling diff_derive v0.1.2
[INFO] [stderr]    Compiling compile-time-crc32-impl v0.1.0
[INFO] [stderr]    Compiling compile-time-crc32 v0.1.2
[INFO] [stderr]    Compiling diff-struct v0.3.1
[INFO] [stderr]    Compiling hash40 v0.4.4
[INFO] [stderr]    Compiling prc-rs v1.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "d0b59d4b244000d6c9761280ec7d660ef04b55d2007bb813bba322b67f8f6f78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b59d4b244000d6c9761280ec7d660ef04b55d2007bb813bba322b67f8f6f78", kill_on_drop: false }`
[INFO] [stdout] d0b59d4b244000d6c9761280ec7d660ef04b55d2007bb813bba322b67f8f6f78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 115e02976cbb67363569a8fec38e1863f4ad4c5986fbb6279aab0b04de41eeb5
[INFO] running `Command { std: "docker" "start" "-a" "115e02976cbb67363569a8fec38e1863f4ad4c5986fbb6279aab0b04de41eeb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling prc-rs v1.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "115e02976cbb67363569a8fec38e1863f4ad4c5986fbb6279aab0b04de41eeb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "115e02976cbb67363569a8fec38e1863f4ad4c5986fbb6279aab0b04de41eeb5", kill_on_drop: false }`
[INFO] [stdout] 115e02976cbb67363569a8fec38e1863f4ad4c5986fbb6279aab0b04de41eeb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 76d6bbf4c80f8d9eeb028118c1980ad2f6ac1f241eaa480a3ef76370bbdeace7
[INFO] running `Command { std: "docker" "start" "-a" "76d6bbf4c80f8d9eeb028118c1980ad2f6ac1f241eaa480a3ef76370bbdeace7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/prc-566f0a6fd750c0a0)
[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] [stderr]    Doc-tests prc
[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" "76d6bbf4c80f8d9eeb028118c1980ad2f6ac1f241eaa480a3ef76370bbdeace7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76d6bbf4c80f8d9eeb028118c1980ad2f6ac1f241eaa480a3ef76370bbdeace7", kill_on_drop: false }`
[INFO] [stdout] 76d6bbf4c80f8d9eeb028118c1980ad2f6ac1f241eaa480a3ef76370bbdeace7