[INFO] fetching crate utf-8 0.7.6...
[INFO] testing utf-8-0.7.6 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate utf-8 0.7.6 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate utf-8 0.7.6 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utf-8 0.7.6
[INFO] finished tweaking crates.io crate utf-8 0.7.6
[INFO] tweaked toml for crates.io crate utf-8 0.7.6 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b6534ea8e33d4fbf6c1694e1baf55250426db045996944b4e0d6286d566e800
[INFO] running `Command { std: "docker" "start" "-a" "2b6534ea8e33d4fbf6c1694e1baf55250426db045996944b4e0d6286d566e800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b6534ea8e33d4fbf6c1694e1baf55250426db045996944b4e0d6286d566e800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b6534ea8e33d4fbf6c1694e1baf55250426db045996944b4e0d6286d566e800", kill_on_drop: false }`
[INFO] [stdout] 2b6534ea8e33d4fbf6c1694e1baf55250426db045996944b4e0d6286d566e800
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 842bf17bb66f2b258b359ca6c418075ef4d9cc8d5f86dfb720ecb0960ffd0dd8
[INFO] running `Command { std: "docker" "start" "-a" "842bf17bb66f2b258b359ca6c418075ef4d9cc8d5f86dfb720ecb0960ffd0dd8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling utf-8 v0.7.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "842bf17bb66f2b258b359ca6c418075ef4d9cc8d5f86dfb720ecb0960ffd0dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "842bf17bb66f2b258b359ca6c418075ef4d9cc8d5f86dfb720ecb0960ffd0dd8", kill_on_drop: false }`
[INFO] [stdout] 842bf17bb66f2b258b359ca6c418075ef4d9cc8d5f86dfb720ecb0960ffd0dd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae3c2f44f24c7a4874875777eda0c1e2d2311ad4a8bd93ab8b9f951f7c28b6c8
[INFO] running `Command { std: "docker" "start" "-a" "ae3c2f44f24c7a4874875777eda0c1e2d2311ad4a8bd93ab8b9f951f7c28b6c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf-8 v0.7.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] [stderr]   Executable tests/unit.rs (/opt/rustwide/target/debug/deps/unit-ac902a47fded3baa)
[INFO] running `Command { std: "docker" "inspect" "ae3c2f44f24c7a4874875777eda0c1e2d2311ad4a8bd93ab8b9f951f7c28b6c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae3c2f44f24c7a4874875777eda0c1e2d2311ad4a8bd93ab8b9f951f7c28b6c8", kill_on_drop: false }`
[INFO] [stdout] ae3c2f44f24c7a4874875777eda0c1e2d2311ad4a8bd93ab8b9f951f7c28b6c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3756b0ae8249a09fe14c8c712bb14fe83733bf449dc840efe35e8611fd8d27dd
[INFO] running `Command { std: "docker" "start" "-a" "3756b0ae8249a09fe14c8c712bb14fe83733bf449dc840efe35e8611fd8d27dd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] [stderr]      Running tests/unit.rs (/opt/rustwide/target/debug/deps/unit-ac902a47fded3baa)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_is_utf8 ... ok
[INFO] [stdout] test test_str_from_utf8 ... ok
[INFO] [stdout] test test_string_from_utf8_lossy ... ok
[INFO] [stdout] test test_incremental_decoder ... ok
[INFO] [stdout] test test_bufread_decoder ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.37s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests utf8
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lossy.rs - lossy::LossyDecoder (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3756b0ae8249a09fe14c8c712bb14fe83733bf449dc840efe35e8611fd8d27dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3756b0ae8249a09fe14c8c712bb14fe83733bf449dc840efe35e8611fd8d27dd", kill_on_drop: false }`
[INFO] [stdout] 3756b0ae8249a09fe14c8c712bb14fe83733bf449dc840efe35e8611fd8d27dd