[INFO] fetching crate cow-rc-str 0.1.0...
[INFO] testing cow-rc-str-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate cow-rc-str 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate cow-rc-str 0.1.0
[INFO] finished tweaking crates.io crate cow-rc-str 0.1.0
[INFO] tweaked toml for crates.io crate cow-rc-str 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cow-rc-str 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b712ab476984807185ef562a34178a55c4160530d6a6331a6b39811db1620200
[INFO] running `Command { std: "docker" "start" "-a" "b712ab476984807185ef562a34178a55c4160530d6a6331a6b39811db1620200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b712ab476984807185ef562a34178a55c4160530d6a6331a6b39811db1620200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b712ab476984807185ef562a34178a55c4160530d6a6331a6b39811db1620200", kill_on_drop: false }`
[INFO] [stdout] b712ab476984807185ef562a34178a55c4160530d6a6331a6b39811db1620200
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3866f711c166aa37830c475dc1e927d1d305a5678e12f8f170daad7c7aa6176e
[INFO] running `Command { std: "docker" "start" "-a" "3866f711c166aa37830c475dc1e927d1d305a5678e12f8f170daad7c7aa6176e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cow-rc-str v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "3866f711c166aa37830c475dc1e927d1d305a5678e12f8f170daad7c7aa6176e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3866f711c166aa37830c475dc1e927d1d305a5678e12f8f170daad7c7aa6176e", kill_on_drop: false }`
[INFO] [stdout] 3866f711c166aa37830c475dc1e927d1d305a5678e12f8f170daad7c7aa6176e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90fe7e19a76a966ce8e3c24ad8912aa950f60dd89a88080d41b799eab4fdbed8
[INFO] running `Command { std: "docker" "start" "-a" "90fe7e19a76a966ce8e3c24ad8912aa950f60dd89a88080d41b799eab4fdbed8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cow-rc-str v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "90fe7e19a76a966ce8e3c24ad8912aa950f60dd89a88080d41b799eab4fdbed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90fe7e19a76a966ce8e3c24ad8912aa950f60dd89a88080d41b799eab4fdbed8", kill_on_drop: false }`
[INFO] [stdout] 90fe7e19a76a966ce8e3c24ad8912aa950f60dd89a88080d41b799eab4fdbed8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cd7fc5d87666f849513ce9a0d2390deff7932e559ec88e3c6d2571106b2bc524
[INFO] running `Command { std: "docker" "start" "-a" "cd7fc5d87666f849513ce9a0d2390deff7932e559ec88e3c6d2571106b2bc524", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cow_rc_str-b96d3ee2625b2ba0)
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests cow_rc_str
[INFO] [stdout] test tests::test_creation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "cd7fc5d87666f849513ce9a0d2390deff7932e559ec88e3c6d2571106b2bc524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd7fc5d87666f849513ce9a0d2390deff7932e559ec88e3c6d2571106b2bc524", kill_on_drop: false }`
[INFO] [stdout] cd7fc5d87666f849513ce9a0d2390deff7932e559ec88e3c6d2571106b2bc524