[INFO] updating cached repository mykmelez/fern-sim
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mykmelez/fern-sim
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mykmelez/fern-sim" "work/ex/beta-1.37-6/sources/1.36.0/gh/mykmelez/fern-sim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mykmelez/fern-sim'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mykmelez/fern-sim" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mykmelez/fern-sim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mykmelez/fern-sim'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f87306fbed4bd234adf00ef1c3a393e51f2a1156
[INFO] sha for GitHub repo mykmelez/fern-sim: f87306fbed4bd234adf00ef1c3a393e51f2a1156
[INFO] validating manifest of mykmelez/fern-sim on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mykmelez/fern-sim on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mykmelez/fern-sim
[INFO] finished frobbing mykmelez/fern-sim
[INFO] frobbed toml for mykmelez/fern-sim written to work/ex/beta-1.37-6/sources/1.36.0/gh/mykmelez/fern-sim/Cargo.toml
[INFO] started frobbing mykmelez/fern-sim
[INFO] finished frobbing mykmelez/fern-sim
[INFO] frobbed toml for mykmelez/fern-sim written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mykmelez/fern-sim/Cargo.toml
[INFO] crate mykmelez/fern-sim already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mykmelez/fern-sim against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mykmelez/fern-sim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] a30522e839a2bf3170e5d5a0ed3147fb51cf56011f2ab0de58aee489d45b2e30
[INFO] running `"docker" "start" "-a" "a30522e839a2bf3170e5d5a0ed3147fb51cf56011f2ab0de58aee489d45b2e30"`
[INFO] [stderr]    Compiling fern_sim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "a30522e839a2bf3170e5d5a0ed3147fb51cf56011f2ab0de58aee489d45b2e30"`
[INFO] running `"docker" "rm" "-f" "a30522e839a2bf3170e5d5a0ed3147fb51cf56011f2ab0de58aee489d45b2e30"`
[INFO] [stdout] a30522e839a2bf3170e5d5a0ed3147fb51cf56011f2ab0de58aee489d45b2e30
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mykmelez/fern-sim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] c9dbc8f9f33ee2f74f1abb2f84ac1718e190253c7a53da7f65743764f2fd2801
[INFO] running `"docker" "start" "-a" "c9dbc8f9f33ee2f74f1abb2f84ac1718e190253c7a53da7f65743764f2fd2801"`
[INFO] [stderr]    Compiling fern_sim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "c9dbc8f9f33ee2f74f1abb2f84ac1718e190253c7a53da7f65743764f2fd2801"`
[INFO] running `"docker" "rm" "-f" "c9dbc8f9f33ee2f74f1abb2f84ac1718e190253c7a53da7f65743764f2fd2801"`
[INFO] [stdout] c9dbc8f9f33ee2f74f1abb2f84ac1718e190253c7a53da7f65743764f2fd2801
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mykmelez/fern-sim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 611b0732308d682e1d2981c93934ddadd1293d737141241eba6196270a66a071
[INFO] running `"docker" "start" "-a" "611b0732308d682e1d2981c93934ddadd1293d737141241eba6196270a66a071"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fern_sim-038f7c5efbec3bea
[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/crater/target/debug/deps/efern-427abf6e97a55d2e
[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]    Doc-tests fern_sim
[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" "611b0732308d682e1d2981c93934ddadd1293d737141241eba6196270a66a071"`
[INFO] running `"docker" "rm" "-f" "611b0732308d682e1d2981c93934ddadd1293d737141241eba6196270a66a071"`
[INFO] [stdout] 611b0732308d682e1d2981c93934ddadd1293d737141241eba6196270a66a071