[INFO] updating cached repository laynemcnish/rust_workshop
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/laynemcnish/rust_workshop
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/laynemcnish/rust_workshop" "work/ex/beta-1.37-6/sources/1.36.0/gh/laynemcnish/rust_workshop"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/laynemcnish/rust_workshop'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/laynemcnish/rust_workshop" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/laynemcnish/rust_workshop"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/laynemcnish/rust_workshop'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f68c820926ddd6cdcf70279f2e90fb64f51c2c6c
[INFO] sha for GitHub repo laynemcnish/rust_workshop: f68c820926ddd6cdcf70279f2e90fb64f51c2c6c
[INFO] validating manifest of laynemcnish/rust_workshop 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 laynemcnish/rust_workshop 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 laynemcnish/rust_workshop
[INFO] finished frobbing laynemcnish/rust_workshop
[INFO] frobbed toml for laynemcnish/rust_workshop written to work/ex/beta-1.37-6/sources/1.36.0/gh/laynemcnish/rust_workshop/Cargo.toml
[INFO] started frobbing laynemcnish/rust_workshop
[INFO] finished frobbing laynemcnish/rust_workshop
[INFO] frobbed toml for laynemcnish/rust_workshop written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/laynemcnish/rust_workshop/Cargo.toml
[INFO] crate laynemcnish/rust_workshop 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/laynemcnish/rust_workshop/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 laynemcnish/rust_workshop 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-7/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/laynemcnish/rust_workshop:/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] 667d3bdc2ab14e648136dce80f76d2453f1bed683686bbe6a6a1797350875999
[INFO] running `"docker" "start" "-a" "667d3bdc2ab14e648136dce80f76d2453f1bed683686bbe6a6a1797350875999"`
[INFO] [stderr]    Compiling my_wc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `"docker" "inspect" "667d3bdc2ab14e648136dce80f76d2453f1bed683686bbe6a6a1797350875999"`
[INFO] running `"docker" "rm" "-f" "667d3bdc2ab14e648136dce80f76d2453f1bed683686bbe6a6a1797350875999"`
[INFO] [stdout] 667d3bdc2ab14e648136dce80f76d2453f1bed683686bbe6a6a1797350875999
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/laynemcnish/rust_workshop:/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] 8613f1a7d412c6d488858f592597738c759cd8a9464ca500adedde3df385fc84
[INFO] running `"docker" "start" "-a" "8613f1a7d412c6d488858f592597738c759cd8a9464ca500adedde3df385fc84"`
[INFO] [stderr]    Compiling my_wc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "8613f1a7d412c6d488858f592597738c759cd8a9464ca500adedde3df385fc84"`
[INFO] running `"docker" "rm" "-f" "8613f1a7d412c6d488858f592597738c759cd8a9464ca500adedde3df385fc84"`
[INFO] [stdout] 8613f1a7d412c6d488858f592597738c759cd8a9464ca500adedde3df385fc84
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/laynemcnish/rust_workshop:/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] 6bdeffc64acc3913232773249ee96aaa1c1c25630ddb743784a02fcb6c3e73b9
[INFO] running `"docker" "start" "-a" "6bdeffc64acc3913232773249ee96aaa1c1c25630ddb743784a02fcb6c3e73b9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/my_wc-5c95be074b25e20f
[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" "6bdeffc64acc3913232773249ee96aaa1c1c25630ddb743784a02fcb6c3e73b9"`
[INFO] running `"docker" "rm" "-f" "6bdeffc64acc3913232773249ee96aaa1c1c25630ddb743784a02fcb6c3e73b9"`
[INFO] [stdout] 6bdeffc64acc3913232773249ee96aaa1c1c25630ddb743784a02fcb6c3e73b9