[INFO] fetching crate utf8 0.1.0...
[INFO] testing utf8-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate utf8 0.1.0 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate utf8 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utf8 0.1.0
[INFO] finished tweaking crates.io crate utf8 0.1.0
[INFO] tweaked toml for crates.io crate utf8 0.1.0 written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1994d6f6089cf4c1c5ced503b6ecf5ebe8e7c733722296f74382aebb1ab3d368
[INFO] running `Command { std: "docker" "start" "-a" "1994d6f6089cf4c1c5ced503b6ecf5ebe8e7c733722296f74382aebb1ab3d368", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1994d6f6089cf4c1c5ced503b6ecf5ebe8e7c733722296f74382aebb1ab3d368", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1994d6f6089cf4c1c5ced503b6ecf5ebe8e7c733722296f74382aebb1ab3d368", kill_on_drop: false }`
[INFO] [stdout] 1994d6f6089cf4c1c5ced503b6ecf5ebe8e7c733722296f74382aebb1ab3d368
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb70a264905b22f46907b5896c633a22acb1953bb782654e0b1c60c69a9baef9
[INFO] running `Command { std: "docker" "start" "-a" "cb70a264905b22f46907b5896c633a22acb1953bb782654e0b1c60c69a9baef9", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "cb70a264905b22f46907b5896c633a22acb1953bb782654e0b1c60c69a9baef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb70a264905b22f46907b5896c633a22acb1953bb782654e0b1c60c69a9baef9", kill_on_drop: false }`
[INFO] [stdout] cb70a264905b22f46907b5896c633a22acb1953bb782654e0b1c60c69a9baef9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40ece7cc4e6464fc430d85ca0341a468623cbdef72b2ddf742ccd6ad858a7e25
[INFO] running `Command { std: "docker" "start" "-a" "40ece7cc4e6464fc430d85ca0341a468623cbdef72b2ddf742ccd6ad858a7e25", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "40ece7cc4e6464fc430d85ca0341a468623cbdef72b2ddf742ccd6ad858a7e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40ece7cc4e6464fc430d85ca0341a468623cbdef72b2ddf742ccd6ad858a7e25", kill_on_drop: false }`
[INFO] [stdout] 40ece7cc4e6464fc430d85ca0341a468623cbdef72b2ddf742ccd6ad858a7e25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a87dbcda068fb47842d75f0a4f4161edba313e4438bc2b2c875f819a5b6e7dc3
[INFO] running `Command { std: "docker" "start" "-a" "a87dbcda068fb47842d75f0a4f4161edba313e4438bc2b2c875f819a5b6e7dc3", 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]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/utf8-f1f07175c1451acb)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests utf8
[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] [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" "a87dbcda068fb47842d75f0a4f4161edba313e4438bc2b2c875f819a5b6e7dc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a87dbcda068fb47842d75f0a4f4161edba313e4438bc2b2c875f819a5b6e7dc3", kill_on_drop: false }`
[INFO] [stdout] a87dbcda068fb47842d75f0a4f4161edba313e4438bc2b2c875f819a5b6e7dc3