[INFO] cloning repository https://github.com/chrissharp80/rust_read_file
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chrissharp80/rust_read_file" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrissharp80%2Frust_read_file", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrissharp80%2Frust_read_file'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aafcb04efcb7ae1aa851dd9a000a1547a5401491
[INFO] testing chrissharp80/rust_read_file against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrissharp80%2Frust_read_file" "/workspace/builds/worker-107/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-107/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chrissharp80/rust_read_file on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chrissharp80/rust_read_file
[INFO] finished tweaking git repo https://github.com/chrissharp80/rust_read_file
[INFO] tweaked toml for git repo https://github.com/chrissharp80/rust_read_file written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] crate git repo https://github.com/chrissharp80/rust_read_file already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dce98f1b8dac1edcc1defc603d54d66d112cd0396791129f3593d8a594bfdab1
[INFO] running `Command { std: "docker" "start" "-a" "dce98f1b8dac1edcc1defc603d54d66d112cd0396791129f3593d8a594bfdab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dce98f1b8dac1edcc1defc603d54d66d112cd0396791129f3593d8a594bfdab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce98f1b8dac1edcc1defc603d54d66d112cd0396791129f3593d8a594bfdab1", kill_on_drop: false }`
[INFO] [stdout] dce98f1b8dac1edcc1defc603d54d66d112cd0396791129f3593d8a594bfdab1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6454830c48fd5c66823992d364ea4c6a9de2ccac93e08185363cd0437fe5a840
[INFO] running `Command { std: "docker" "start" "-a" "6454830c48fd5c66823992d364ea4c6a9de2ccac93e08185363cd0437fe5a840", kill_on_drop: false }`
[INFO] [stderr]    Compiling text_io v0.1.6
[INFO] [stderr]    Compiling union_find v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "6454830c48fd5c66823992d364ea4c6a9de2ccac93e08185363cd0437fe5a840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6454830c48fd5c66823992d364ea4c6a9de2ccac93e08185363cd0437fe5a840", kill_on_drop: false }`
[INFO] [stdout] 6454830c48fd5c66823992d364ea4c6a9de2ccac93e08185363cd0437fe5a840
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3a9ac066b46edecf2ada351274bb0fe3dd7d0f906f897343389b89df8cb990f
[INFO] running `Command { std: "docker" "start" "-a" "e3a9ac066b46edecf2ada351274bb0fe3dd7d0f906f897343389b89df8cb990f", kill_on_drop: false }`
[INFO] [stderr]    Compiling union_find v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "e3a9ac066b46edecf2ada351274bb0fe3dd7d0f906f897343389b89df8cb990f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3a9ac066b46edecf2ada351274bb0fe3dd7d0f906f897343389b89df8cb990f", kill_on_drop: false }`
[INFO] [stdout] e3a9ac066b46edecf2ada351274bb0fe3dd7d0f906f897343389b89df8cb990f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f8becc1acef3270626f06c7ccd0303e5aa606566aeabd1cababa250b2a3f06b1
[INFO] running `Command { std: "docker" "start" "-a" "f8becc1acef3270626f06c7ccd0303e5aa606566aeabd1cababa250b2a3f06b1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/union_find-1e6ff736ff26ae6c)
[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" "f8becc1acef3270626f06c7ccd0303e5aa606566aeabd1cababa250b2a3f06b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8becc1acef3270626f06c7ccd0303e5aa606566aeabd1cababa250b2a3f06b1", kill_on_drop: false }`
[INFO] [stdout] f8becc1acef3270626f06c7ccd0303e5aa606566aeabd1cababa250b2a3f06b1