[INFO] updating cached repository steveklabnik/rust-issue-17610
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/steveklabnik/rust-issue-17610
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/steveklabnik/rust-issue-17610" "work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rust-issue-17610"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rust-issue-17610'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/steveklabnik/rust-issue-17610" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/steveklabnik/rust-issue-17610"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/steveklabnik/rust-issue-17610'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f67f745f09c2f8eecca52fe1773fe375db56154
[INFO] sha for GitHub repo steveklabnik/rust-issue-17610: 2f67f745f09c2f8eecca52fe1773fe375db56154
[INFO] validating manifest of steveklabnik/rust-issue-17610 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/rust-issue-17610 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/rust-issue-17610
[INFO] finished frobbing steveklabnik/rust-issue-17610
[INFO] frobbed toml for steveklabnik/rust-issue-17610 written to work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rust-issue-17610/Cargo.toml
[INFO] started frobbing steveklabnik/rust-issue-17610
[INFO] finished frobbing steveklabnik/rust-issue-17610
[INFO] frobbed toml for steveklabnik/rust-issue-17610 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/steveklabnik/rust-issue-17610/Cargo.toml
[INFO] crate steveklabnik/rust-issue-17610 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing steveklabnik/rust-issue-17610 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rust-issue-17610:/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] 31703e450871f12c146dd605cc527b3cc0e5cf7b202e397a876ecb3c79e88cdc
[INFO] running `"docker" "start" "-a" "31703e450871f12c146dd605cc527b3cc0e5cf7b202e397a876ecb3c79e88cdc"`
[INFO] [stderr]    Compiling foo_bar v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "31703e450871f12c146dd605cc527b3cc0e5cf7b202e397a876ecb3c79e88cdc"`
[INFO] running `"docker" "rm" "-f" "31703e450871f12c146dd605cc527b3cc0e5cf7b202e397a876ecb3c79e88cdc"`
[INFO] [stdout] 31703e450871f12c146dd605cc527b3cc0e5cf7b202e397a876ecb3c79e88cdc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rust-issue-17610:/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] e23ee4a74e27d1c5824d90bb764f0815ec09adb1a77bad09395afd536c72977e
[INFO] running `"docker" "start" "-a" "e23ee4a74e27d1c5824d90bb764f0815ec09adb1a77bad09395afd536c72977e"`
[INFO] [stderr]    Compiling foo_bar v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "e23ee4a74e27d1c5824d90bb764f0815ec09adb1a77bad09395afd536c72977e"`
[INFO] running `"docker" "rm" "-f" "e23ee4a74e27d1c5824d90bb764f0815ec09adb1a77bad09395afd536c72977e"`
[INFO] [stdout] e23ee4a74e27d1c5824d90bb764f0815ec09adb1a77bad09395afd536c72977e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/steveklabnik/rust-issue-17610:/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] 524a166421ecd240c18c4ac171cefb613f0c2f6ae964af6ec24d1dfd5fc54ecd
[INFO] running `"docker" "start" "-a" "524a166421ecd240c18c4ac171cefb613f0c2f6ae964af6ec24d1dfd5fc54ecd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/foo_bar-ede595fd38de3f7b
[INFO] [stderr]      Running /opt/crater/target/debug/deps/foo_bar-53e2955f820c7e89
[INFO] [stderr]    Doc-tests foo_bar
[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] [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] [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" "524a166421ecd240c18c4ac171cefb613f0c2f6ae964af6ec24d1dfd5fc54ecd"`
[INFO] running `"docker" "rm" "-f" "524a166421ecd240c18c4ac171cefb613f0c2f6ae964af6ec24d1dfd5fc54ecd"`
[INFO] [stdout] 524a166421ecd240c18c4ac171cefb613f0c2f6ae964af6ec24d1dfd5fc54ecd