[INFO] updating cached repository https://github.com/wasuken/ackermann-function-book
[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] a70b00d136af3a04b8f03c3c434affe2c379beb9
[INFO] testing wasuken/ackermann-function-book against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwasuken%2Fackermann-function-book" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wasuken/ackermann-function-book 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/wasuken/ackermann-function-book
[INFO] finished tweaking git repo https://github.com/wasuken/ackermann-function-book
[INFO] tweaked toml for git repo https://github.com/wasuken/ackermann-function-book written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/wasuken/ackermann-function-book already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 634e76e50cbabcc3357a7c6bbedd0a6a6e4e4cce5f82b6ca194ed4de5b0a3d38
[INFO] running `"docker" "start" "-a" "634e76e50cbabcc3357a7c6bbedd0a6a6e4e4cce5f82b6ca194ed4de5b0a3d38"`
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-bigint v0.2.5
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling ackermann-function-book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.67s
[INFO] running `"docker" "inspect" "634e76e50cbabcc3357a7c6bbedd0a6a6e4e4cce5f82b6ca194ed4de5b0a3d38"`
[INFO] running `"docker" "rm" "-f" "634e76e50cbabcc3357a7c6bbedd0a6a6e4e4cce5f82b6ca194ed4de5b0a3d38"`
[INFO] [stdout] 634e76e50cbabcc3357a7c6bbedd0a6a6e4e4cce5f82b6ca194ed4de5b0a3d38
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] b07e2915b35e0dbb88acd8f112238e7f07de93a919ee1fbd30b46bb5f524338c
[INFO] running `"docker" "start" "-a" "b07e2915b35e0dbb88acd8f112238e7f07de93a919ee1fbd30b46bb5f524338c"`
[INFO] [stderr]    Compiling ackermann-function-book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `"docker" "inspect" "b07e2915b35e0dbb88acd8f112238e7f07de93a919ee1fbd30b46bb5f524338c"`
[INFO] running `"docker" "rm" "-f" "b07e2915b35e0dbb88acd8f112238e7f07de93a919ee1fbd30b46bb5f524338c"`
[INFO] [stdout] b07e2915b35e0dbb88acd8f112238e7f07de93a919ee1fbd30b46bb5f524338c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 3955b19fe6825560bb39ab4cd321788eb4ca0f285b5415bf6d1940a11048b68d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "3955b19fe6825560bb39ab4cd321788eb4ca0f285b5415bf6d1940a11048b68d"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ackermann_function_book-448adb2f249a1c3b
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::a3 ... ok
[INFO] [stdout] test tests::a2 ... ok
[INFO] [stdout] test tests::conv_from_u32_biguint ... ok
[INFO] [stdout] test tests::a0 ... ok
[INFO] [stdout] test tests::a4 ... ok
[INFO] [stdout] test tests::a1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3955b19fe6825560bb39ab4cd321788eb4ca0f285b5415bf6d1940a11048b68d"`
[INFO] running `"docker" "rm" "-f" "3955b19fe6825560bb39ab4cd321788eb4ca0f285b5415bf6d1940a11048b68d"`
[INFO] [stdout] 3955b19fe6825560bb39ab4cd321788eb4ca0f285b5415bf6d1940a11048b68d