[INFO] updating cached repository https://github.com/T-parrish/Rust_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] 4667f4d14000a8368b17c309b4988925ec391a4a
[INFO] testing T-parrish/Rust_book against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT-parrish%2FRust_book" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/T-parrish/Rust_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/T-parrish/Rust_book
[INFO] finished tweaking git repo https://github.com/T-parrish/Rust_book
[INFO] tweaked toml for git repo https://github.com/T-parrish/Rust_book written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/T-parrish/Rust_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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 25fc818d2953f45cf30c01961a25360e585ac447c04d11c44d54041143b97eca
[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" "25fc818d2953f45cf30c01961a25360e585ac447c04d11c44d54041143b97eca"`
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "25fc818d2953f45cf30c01961a25360e585ac447c04d11c44d54041143b97eca"`
[INFO] running `"docker" "rm" "-f" "25fc818d2953f45cf30c01961a25360e585ac447c04d11c44d54041143b97eca"`
[INFO] [stdout] 25fc818d2953f45cf30c01961a25360e585ac447c04d11c44d54041143b97eca
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 1d28aaf7dc31e55854355e678fbabc6af26189145b77d8dba08bb30cd06b3e34
[INFO] running `"docker" "start" "-a" "1d28aaf7dc31e55854355e678fbabc6af26189145b77d8dba08bb30cd06b3e34"`
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "1d28aaf7dc31e55854355e678fbabc6af26189145b77d8dba08bb30cd06b3e34"`
[INFO] running `"docker" "rm" "-f" "1d28aaf7dc31e55854355e678fbabc6af26189145b77d8dba08bb30cd06b3e34"`
[INFO] [stdout] 1d28aaf7dc31e55854355e678fbabc6af26189145b77d8dba08bb30cd06b3e34
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a2f02b04c54dc15544f41eed4c94b498c666b69f6eb665174d891c80abc06ea4
[INFO] running `"docker" "start" "-a" "a2f02b04c54dc15544f41eed4c94b498c666b69f6eb665174d891c80abc06ea4"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/variables-a2b409fc35483665
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test box_notes::tests::drop_early ... ignored
[INFO] [stdout] test box_notes::tests::deref_coercion ... ok
[INFO] [stdout] test box_notes::tests::box_deref ... ok
[INFO] [stdout] test box_notes::tests::custom_box_deref ... ok
[INFO] [stdout] test box_notes::tests::normal_deref ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a2f02b04c54dc15544f41eed4c94b498c666b69f6eb665174d891c80abc06ea4"`
[INFO] running `"docker" "rm" "-f" "a2f02b04c54dc15544f41eed4c94b498c666b69f6eb665174d891c80abc06ea4"`
[INFO] [stdout] a2f02b04c54dc15544f41eed4c94b498c666b69f6eb665174d891c80abc06ea4