[INFO] updating cached repository shanlihou/rust_tool
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shanlihou/rust_tool
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shanlihou/rust_tool" "work/ex/beta-1.38-1/sources/1.37.0/gh/shanlihou/rust_tool"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/shanlihou/rust_tool'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shanlihou/rust_tool" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shanlihou/rust_tool"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shanlihou/rust_tool'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b759a7ae224888b58c60c3dab3abe2cbc8e8e033
[INFO] sha for GitHub repo shanlihou/rust_tool: b759a7ae224888b58c60c3dab3abe2cbc8e8e033
[INFO] validating manifest of shanlihou/rust_tool 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 shanlihou/rust_tool 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 shanlihou/rust_tool
[INFO] finished frobbing shanlihou/rust_tool
[INFO] frobbed toml for shanlihou/rust_tool written to work/ex/beta-1.38-1/sources/1.37.0/gh/shanlihou/rust_tool/Cargo.toml
[INFO] started frobbing shanlihou/rust_tool
[INFO] finished frobbing shanlihou/rust_tool
[INFO] frobbed toml for shanlihou/rust_tool written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shanlihou/rust_tool/Cargo.toml
[INFO] crate shanlihou/rust_tool 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]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shanlihou/rust_tool/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[INFO] the lockfile is outdated, regenerating it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 shanlihou/rust_tool 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/shanlihou/rust_tool:/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] 831f8be309947ca05f072d8d7603dc318d9997cae9573eb555e1ea5ac178758d
[INFO] running `"docker" "start" "-a" "831f8be309947ca05f072d8d7603dc318d9997cae9573eb555e1ea5ac178758d"`
[INFO] [stderr]    Compiling image v0.22.1
[INFO] [stderr]    Compiling resize_png v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `resize_png`
[INFO] [stderr]   --> src/main.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn resize_png(img: &Path, dst_path: &str) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.17s
[INFO] running `"docker" "inspect" "831f8be309947ca05f072d8d7603dc318d9997cae9573eb555e1ea5ac178758d"`
[INFO] running `"docker" "rm" "-f" "831f8be309947ca05f072d8d7603dc318d9997cae9573eb555e1ea5ac178758d"`
[INFO] [stdout] 831f8be309947ca05f072d8d7603dc318d9997cae9573eb555e1ea5ac178758d
[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/shanlihou/rust_tool:/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] 96f09b232ee208bc75706ac3f6a7b7aa630b4efaa3d1669e85aae52261cf7dc3
[INFO] running `"docker" "start" "-a" "96f09b232ee208bc75706ac3f6a7b7aa630b4efaa3d1669e85aae52261cf7dc3"`
[INFO] [stderr]    Compiling resize_png v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `resize_png`
[INFO] [stderr]   --> src/main.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn resize_png(img: &Path, dst_path: &str) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `"docker" "inspect" "96f09b232ee208bc75706ac3f6a7b7aa630b4efaa3d1669e85aae52261cf7dc3"`
[INFO] running `"docker" "rm" "-f" "96f09b232ee208bc75706ac3f6a7b7aa630b4efaa3d1669e85aae52261cf7dc3"`
[INFO] [stdout] 96f09b232ee208bc75706ac3f6a7b7aa630b4efaa3d1669e85aae52261cf7dc3
[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/shanlihou/rust_tool:/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] a4195e30b5ee472994b8a55e6a426c8fe8628dbb8c5e6829686f01021ebed8a0
[INFO] running `"docker" "start" "-a" "a4195e30b5ee472994b8a55e6a426c8fe8628dbb8c5e6829686f01021ebed8a0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/resize_png-62d30d5c0324caec
[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" "a4195e30b5ee472994b8a55e6a426c8fe8628dbb8c5e6829686f01021ebed8a0"`
[INFO] running `"docker" "rm" "-f" "a4195e30b5ee472994b8a55e6a426c8fe8628dbb8c5e6829686f01021ebed8a0"`
[INFO] [stdout] a4195e30b5ee472994b8a55e6a426c8fe8628dbb8c5e6829686f01021ebed8a0