[INFO] updating cached repository steveklabnik/rwc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/steveklabnik/rwc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/steveklabnik/rwc" "work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rwc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rwc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/steveklabnik/rwc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/steveklabnik/rwc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/steveklabnik/rwc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cfba27ddfd46d0c601a706583a47bc314e9c6a17
[INFO] sha for GitHub repo steveklabnik/rwc: cfba27ddfd46d0c601a706583a47bc314e9c6a17
[INFO] validating manifest of steveklabnik/rwc on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of steveklabnik/rwc on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing steveklabnik/rwc
[INFO] finished frobbing steveklabnik/rwc
[INFO] frobbed toml for steveklabnik/rwc written to work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rwc/Cargo.toml
[INFO] started frobbing steveklabnik/rwc
[INFO] finished frobbing steveklabnik/rwc
[INFO] frobbed toml for steveklabnik/rwc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/steveklabnik/rwc/Cargo.toml
[INFO] crate steveklabnik/rwc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rwc/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing steveklabnik/rwc against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rwc:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 1b91b0982bf5ccde86b3a4e4382f098f3f23ce50691e93c157317284fbfbd9f2
[INFO] running `"docker" "start" "-a" "1b91b0982bf5ccde86b3a4e4382f098f3f23ce50691e93c157317284fbfbd9f2"`
[INFO] [stderr]    Compiling rwc v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "1b91b0982bf5ccde86b3a4e4382f098f3f23ce50691e93c157317284fbfbd9f2"`
[INFO] running `"docker" "rm" "-f" "1b91b0982bf5ccde86b3a4e4382f098f3f23ce50691e93c157317284fbfbd9f2"`
[INFO] [stdout] 1b91b0982bf5ccde86b3a4e4382f098f3f23ce50691e93c157317284fbfbd9f2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rwc:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] bc6e45cb80a326601ed4f9fcfe1a31d12b395797e9b8eec41f4fd2089055d69a
[INFO] running `"docker" "start" "-a" "bc6e45cb80a326601ed4f9fcfe1a31d12b395797e9b8eec41f4fd2089055d69a"`
[INFO] [stderr]    Compiling rwc v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "bc6e45cb80a326601ed4f9fcfe1a31d12b395797e9b8eec41f4fd2089055d69a"`
[INFO] running `"docker" "rm" "-f" "bc6e45cb80a326601ed4f9fcfe1a31d12b395797e9b8eec41f4fd2089055d69a"`
[INFO] [stdout] bc6e45cb80a326601ed4f9fcfe1a31d12b395797e9b8eec41f4fd2089055d69a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rwc:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] cfcafa2604dbd89ce0df713a6df144e8c21631e0b0fa2cf1a6a4dd2640255799
[INFO] running `"docker" "start" "-a" "cfcafa2604dbd89ce0df713a6df144e8c21631e0b0fa2cf1a6a4dd2640255799"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rwc-95798e1ae0641332
[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" "cfcafa2604dbd89ce0df713a6df144e8c21631e0b0fa2cf1a6a4dd2640255799"`
[INFO] running `"docker" "rm" "-f" "cfcafa2604dbd89ce0df713a6df144e8c21631e0b0fa2cf1a6a4dd2640255799"`
[INFO] [stdout] cfcafa2604dbd89ce0df713a6df144e8c21631e0b0fa2cf1a6a4dd2640255799