[INFO] fetching crate nik-rev 0.1.7...
[INFO] testing nik-rev-0.1.7 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate nik-rev 0.1.7 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate nik-rev 0.1.7
[INFO] finished tweaking crates.io crate nik-rev 0.1.7
[INFO] tweaked toml for crates.io crate nik-rev 0.1.7 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nik-rev 0.1.7 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nik-rev 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62502d016c5ba27f4d81cdfe48db936ff7b0e9f76fd1cfdbd0f234d8e7e0f14c
[INFO] running `Command { std: "docker" "start" "-a" "62502d016c5ba27f4d81cdfe48db936ff7b0e9f76fd1cfdbd0f234d8e7e0f14c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62502d016c5ba27f4d81cdfe48db936ff7b0e9f76fd1cfdbd0f234d8e7e0f14c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62502d016c5ba27f4d81cdfe48db936ff7b0e9f76fd1cfdbd0f234d8e7e0f14c", kill_on_drop: false }`
[INFO] [stdout] 62502d016c5ba27f4d81cdfe48db936ff7b0e9f76fd1cfdbd0f234d8e7e0f14c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c4cb19bae1fcdb1e7f491cd8b0ade8ab6b50a394f850c6a5b54236cd0c160ca
[INFO] running `Command { std: "docker" "start" "-a" "9c4cb19bae1fcdb1e7f491cd8b0ade8ab6b50a394f850c6a5b54236cd0c160ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling nik-rev v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "9c4cb19bae1fcdb1e7f491cd8b0ade8ab6b50a394f850c6a5b54236cd0c160ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c4cb19bae1fcdb1e7f491cd8b0ade8ab6b50a394f850c6a5b54236cd0c160ca", kill_on_drop: false }`
[INFO] [stdout] 9c4cb19bae1fcdb1e7f491cd8b0ade8ab6b50a394f850c6a5b54236cd0c160ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d7d3171be6a85f5aa54c37725ed4cefc99368459899d0061538c10275b48c91
[INFO] running `Command { std: "docker" "start" "-a" "8d7d3171be6a85f5aa54c37725ed4cefc99368459899d0061538c10275b48c91", kill_on_drop: false }`
[INFO] [stderr]    Compiling nik-rev v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "8d7d3171be6a85f5aa54c37725ed4cefc99368459899d0061538c10275b48c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d7d3171be6a85f5aa54c37725ed4cefc99368459899d0061538c10275b48c91", kill_on_drop: false }`
[INFO] [stdout] 8d7d3171be6a85f5aa54c37725ed4cefc99368459899d0061538c10275b48c91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 23c25eba8a4a801e3aeb95549e991a2ef93e53c369fc9994dc20f8fd0b89034a
[INFO] running `Command { std: "docker" "start" "-a" "23c25eba8a4a801e3aeb95549e991a2ef93e53c369fc9994dc20f8fd0b89034a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nik_rev-d8071c6b4f7a4d8d)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests nik_rev
[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" "23c25eba8a4a801e3aeb95549e991a2ef93e53c369fc9994dc20f8fd0b89034a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c25eba8a4a801e3aeb95549e991a2ef93e53c369fc9994dc20f8fd0b89034a", kill_on_drop: false }`
[INFO] [stdout] 23c25eba8a4a801e3aeb95549e991a2ef93e53c369fc9994dc20f8fd0b89034a