[INFO] updating cached repository https://github.com/mykmelez/fern-sim
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] f87306fbed4bd234adf00ef1c3a393e51f2a1156
[INFO] testing mykmelez/fern-sim against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmykmelez%2Ffern-sim" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mykmelez/fern-sim on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mykmelez/fern-sim
[INFO] finished tweaking git repo https://github.com/mykmelez/fern-sim
[INFO] tweaked toml for git repo https://github.com/mykmelez/fern-sim written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mykmelez/fern-sim already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 923bfa358ca3d4594ee17e56d3f8966b3c7ff4eea0663f9e9078e7fa2bc45384
[INFO] running `"docker" "start" "-a" "923bfa358ca3d4594ee17e56d3f8966b3c7ff4eea0663f9e9078e7fa2bc45384"`
[INFO] [stderr]    Compiling fern_sim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "923bfa358ca3d4594ee17e56d3f8966b3c7ff4eea0663f9e9078e7fa2bc45384"`
[INFO] running `"docker" "rm" "-f" "923bfa358ca3d4594ee17e56d3f8966b3c7ff4eea0663f9e9078e7fa2bc45384"`
[INFO] [stdout] 923bfa358ca3d4594ee17e56d3f8966b3c7ff4eea0663f9e9078e7fa2bc45384
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] b0dbf5ef84d378777d12c2e46c372d9f682d5d27e6d5b14306033d4cbdd4ec5e
[INFO] running `"docker" "start" "-a" "b0dbf5ef84d378777d12c2e46c372d9f682d5d27e6d5b14306033d4cbdd4ec5e"`
[INFO] [stderr]    Compiling fern_sim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "b0dbf5ef84d378777d12c2e46c372d9f682d5d27e6d5b14306033d4cbdd4ec5e"`
[INFO] running `"docker" "rm" "-f" "b0dbf5ef84d378777d12c2e46c372d9f682d5d27e6d5b14306033d4cbdd4ec5e"`
[INFO] [stdout] b0dbf5ef84d378777d12c2e46c372d9f682d5d27e6d5b14306033d4cbdd4ec5e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 3025b3eb3cdb180659d71589dc19e93dfbed92321b82d983b3239a3eaa56534b
[INFO] running `"docker" "start" "-a" "3025b3eb3cdb180659d71589dc19e93dfbed92321b82d983b3239a3eaa56534b"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fern_sim-30885790f467e8a4
[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] [stderr]      Running /opt/rustwide/target/debug/deps/efern-fadaecc36bb10e18
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fern_sim
[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] [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" "3025b3eb3cdb180659d71589dc19e93dfbed92321b82d983b3239a3eaa56534b"`
[INFO] running `"docker" "rm" "-f" "3025b3eb3cdb180659d71589dc19e93dfbed92321b82d983b3239a3eaa56534b"`
[INFO] [stdout] 3025b3eb3cdb180659d71589dc19e93dfbed92321b82d983b3239a3eaa56534b