[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[INFO] the lockfile is outdated, regenerating it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 beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d7cb120cf5eb8b131ac36af21d481ed6ee174f28479ad94625c8cf459d8143c4
[INFO] running `"docker" "start" "-a" "d7cb120cf5eb8b131ac36af21d481ed6ee174f28479ad94625c8cf459d8143c4"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling png v0.15.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling tiff v0.3.1
[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 33.43s
[INFO] running `"docker" "inspect" "d7cb120cf5eb8b131ac36af21d481ed6ee174f28479ad94625c8cf459d8143c4"`
[INFO] running `"docker" "rm" "-f" "d7cb120cf5eb8b131ac36af21d481ed6ee174f28479ad94625c8cf459d8143c4"`
[INFO] [stdout] d7cb120cf5eb8b131ac36af21d481ed6ee174f28479ad94625c8cf459d8143c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] af17e932b4455c0a3eea473f70c40af4ea3ee874f135fa013008b63959b9ff1f
[INFO] running `"docker" "start" "-a" "af17e932b4455c0a3eea473f70c40af4ea3ee874f135fa013008b63959b9ff1f"`
[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 1.20s
[INFO] running `"docker" "inspect" "af17e932b4455c0a3eea473f70c40af4ea3ee874f135fa013008b63959b9ff1f"`
[INFO] running `"docker" "rm" "-f" "af17e932b4455c0a3eea473f70c40af4ea3ee874f135fa013008b63959b9ff1f"`
[INFO] [stdout] af17e932b4455c0a3eea473f70c40af4ea3ee874f135fa013008b63959b9ff1f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] bd373d74b96bc9718fc35be9b5365f924145ac6ce48a842065e8fe079ee56911
[INFO] running `"docker" "start" "-a" "bd373d74b96bc9718fc35be9b5365f924145ac6ce48a842065e8fe079ee56911"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/resize_png-0a8210bbf2f55baa
[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" "bd373d74b96bc9718fc35be9b5365f924145ac6ce48a842065e8fe079ee56911"`
[INFO] running `"docker" "rm" "-f" "bd373d74b96bc9718fc35be9b5365f924145ac6ce48a842065e8fe079ee56911"`
[INFO] [stdout] bd373d74b96bc9718fc35be9b5365f924145ac6ce48a842065e8fe079ee56911