[INFO] updating cached repository https://github.com/Knium/trpl-exercise-chap8
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 51ba570a09a7e0c4d7cda9296c36ec5b9545c78b
[INFO] testing Knium/trpl-exercise-chap8 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKnium%2Ftrpl-exercise-chap8" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Knium/trpl-exercise-chap8 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Knium/trpl-exercise-chap8
[INFO] finished tweaking git repo https://github.com/Knium/trpl-exercise-chap8
[INFO] tweaked toml for git repo https://github.com/Knium/trpl-exercise-chap8 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/Knium/trpl-exercise-chap8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 56034758c019edf003a1ab448ddaf9779ea6aa31ab171fcf01f986e0fbd94be2
[INFO] running `"docker" "start" "-a" "56034758c019edf003a1ab448ddaf9779ea6aa31ab171fcf01f986e0fbd94be2"`
[INFO] [stderr]    Compiling trpl-exercise-chap8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "56034758c019edf003a1ab448ddaf9779ea6aa31ab171fcf01f986e0fbd94be2"`
[INFO] running `"docker" "rm" "-f" "56034758c019edf003a1ab448ddaf9779ea6aa31ab171fcf01f986e0fbd94be2"`
[INFO] [stdout] 56034758c019edf003a1ab448ddaf9779ea6aa31ab171fcf01f986e0fbd94be2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4e9bff6f12b27ee555dd8288aae799a39208a9df6ce3c648487c615d2aeca9a0
[INFO] running `"docker" "start" "-a" "4e9bff6f12b27ee555dd8288aae799a39208a9df6ce3c648487c615d2aeca9a0"`
[INFO] [stderr]    Compiling trpl-exercise-chap8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "4e9bff6f12b27ee555dd8288aae799a39208a9df6ce3c648487c615d2aeca9a0"`
[INFO] running `"docker" "rm" "-f" "4e9bff6f12b27ee555dd8288aae799a39208a9df6ce3c648487c615d2aeca9a0"`
[INFO] [stdout] 4e9bff6f12b27ee555dd8288aae799a39208a9df6ce3c648487c615d2aeca9a0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9eff04e6049b9acdc11a35cf769a59c94e0ac4195134926fcdcb5d3c09c393f8
[INFO] running `"docker" "start" "-a" "9eff04e6049b9acdc11a35cf769a59c94e0ac4195134926fcdcb5d3c09c393f8"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/trpl_exercise_chap8-8f5a38bdc12631a2
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9eff04e6049b9acdc11a35cf769a59c94e0ac4195134926fcdcb5d3c09c393f8"`
[INFO] running `"docker" "rm" "-f" "9eff04e6049b9acdc11a35cf769a59c94e0ac4195134926fcdcb5d3c09c393f8"`
[INFO] [stdout] 9eff04e6049b9acdc11a35cf769a59c94e0ac4195134926fcdcb5d3c09c393f8