[INFO] fetching crate cow-rc-str 0.1.0...
[INFO] testing cow-rc-str-0.1.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate cow-rc-str 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cow-rc-str 0.1.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f50e4bfad138a26bd8ed370beab0713bf5f6c8983c11aef13b499e166b4c98b
[INFO] running `Command { std: "docker" "start" "-a" "4f50e4bfad138a26bd8ed370beab0713bf5f6c8983c11aef13b499e166b4c98b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f50e4bfad138a26bd8ed370beab0713bf5f6c8983c11aef13b499e166b4c98b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f50e4bfad138a26bd8ed370beab0713bf5f6c8983c11aef13b499e166b4c98b", kill_on_drop: false }`
[INFO] [stdout] 4f50e4bfad138a26bd8ed370beab0713bf5f6c8983c11aef13b499e166b4c98b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d3bd2404ebab745cc69522fcbd34aef4c2fbc7f9f4702045a6a0fa3c7e2e385
[INFO] running `Command { std: "docker" "start" "-a" "3d3bd2404ebab745cc69522fcbd34aef4c2fbc7f9f4702045a6a0fa3c7e2e385", kill_on_drop: false }`
[INFO] [stderr]    Compiling cow-rc-str v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "3d3bd2404ebab745cc69522fcbd34aef4c2fbc7f9f4702045a6a0fa3c7e2e385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d3bd2404ebab745cc69522fcbd34aef4c2fbc7f9f4702045a6a0fa3c7e2e385", kill_on_drop: false }`
[INFO] [stdout] 3d3bd2404ebab745cc69522fcbd34aef4c2fbc7f9f4702045a6a0fa3c7e2e385
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f69ce34e2204a0da7e23886eabca1347399a0318c5e152a9f0ef17b200380166
[INFO] running `Command { std: "docker" "start" "-a" "f69ce34e2204a0da7e23886eabca1347399a0318c5e152a9f0ef17b200380166", kill_on_drop: false }`
[INFO] [stderr]    Compiling cow-rc-str v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "f69ce34e2204a0da7e23886eabca1347399a0318c5e152a9f0ef17b200380166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f69ce34e2204a0da7e23886eabca1347399a0318c5e152a9f0ef17b200380166", kill_on_drop: false }`
[INFO] [stdout] f69ce34e2204a0da7e23886eabca1347399a0318c5e152a9f0ef17b200380166
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4ac596a4aa63a501ab68bd5ae2260e4daab33f7f26b601a05448c31c0db74323
[INFO] running `Command { std: "docker" "start" "-a" "4ac596a4aa63a501ab68bd5ae2260e4daab33f7f26b601a05448c31c0db74323", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cow_rc_str-8ca0e1bcb31fbf1a)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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] [stderr]    Doc-tests cow-rc-str
[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" "4ac596a4aa63a501ab68bd5ae2260e4daab33f7f26b601a05448c31c0db74323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ac596a4aa63a501ab68bd5ae2260e4daab33f7f26b601a05448c31c0db74323", kill_on_drop: false }`
[INFO] [stdout] 4ac596a4aa63a501ab68bd5ae2260e4daab33f7f26b601a05448c31c0db74323