[INFO] updating cached repository p0wp0wpanda/imprint
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/p0wp0wpanda/imprint
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/p0wp0wpanda/imprint" "work/ex/beta-1.37-6/sources/1.36.0/gh/p0wp0wpanda/imprint"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/p0wp0wpanda/imprint'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/p0wp0wpanda/imprint" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/p0wp0wpanda/imprint"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/p0wp0wpanda/imprint'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 46ae2ea4f988ddca078f38facb099b6112353f99
[INFO] sha for GitHub repo p0wp0wpanda/imprint: 46ae2ea4f988ddca078f38facb099b6112353f99
[INFO] validating manifest of p0wp0wpanda/imprint 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 p0wp0wpanda/imprint 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 p0wp0wpanda/imprint
[INFO] finished frobbing p0wp0wpanda/imprint
[INFO] frobbed toml for p0wp0wpanda/imprint written to work/ex/beta-1.37-6/sources/1.36.0/gh/p0wp0wpanda/imprint/Cargo.toml
[INFO] started frobbing p0wp0wpanda/imprint
[INFO] finished frobbing p0wp0wpanda/imprint
[INFO] frobbed toml for p0wp0wpanda/imprint written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/p0wp0wpanda/imprint/Cargo.toml
[INFO] crate p0wp0wpanda/imprint 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing p0wp0wpanda/imprint 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-0/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/p0wp0wpanda/imprint:/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] baabd4e24dc2e09404f3e59f551b6813dd362162ee0cb19e9f03170fd46a1703
[INFO] running `"docker" "start" "-a" "baabd4e24dc2e09404f3e59f551b6813dd362162ee0cb19e9f03170fd46a1703"`
[INFO] [stderr]    Compiling images v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `plte_check`
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let plte_check: Vec<u8> = vec![80, 76, 84, 69]; //PLTE chunk
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_plte_check`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "baabd4e24dc2e09404f3e59f551b6813dd362162ee0cb19e9f03170fd46a1703"`
[INFO] running `"docker" "rm" "-f" "baabd4e24dc2e09404f3e59f551b6813dd362162ee0cb19e9f03170fd46a1703"`
[INFO] [stdout] baabd4e24dc2e09404f3e59f551b6813dd362162ee0cb19e9f03170fd46a1703
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/p0wp0wpanda/imprint:/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] d54b595cc47a7e95e4b026f553dba08a2fd1e7dd119763ba0ed5ec2ef54a93f3
[INFO] running `"docker" "start" "-a" "d54b595cc47a7e95e4b026f553dba08a2fd1e7dd119763ba0ed5ec2ef54a93f3"`
[INFO] [stderr]    Compiling images v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `plte_check`
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let plte_check: Vec<u8> = vec![80, 76, 84, 69]; //PLTE chunk
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_plte_check`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "d54b595cc47a7e95e4b026f553dba08a2fd1e7dd119763ba0ed5ec2ef54a93f3"`
[INFO] running `"docker" "rm" "-f" "d54b595cc47a7e95e4b026f553dba08a2fd1e7dd119763ba0ed5ec2ef54a93f3"`
[INFO] [stdout] d54b595cc47a7e95e4b026f553dba08a2fd1e7dd119763ba0ed5ec2ef54a93f3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/p0wp0wpanda/imprint:/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] 5c4cd54451a299fef985d5fce7d923ae2683b4436a1fa14a54779d1075d1958e
[INFO] running `"docker" "start" "-a" "5c4cd54451a299fef985d5fce7d923ae2683b4436a1fa14a54779d1075d1958e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/images-9440ad0960c8db2d
[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" "5c4cd54451a299fef985d5fce7d923ae2683b4436a1fa14a54779d1075d1958e"`
[INFO] running `"docker" "rm" "-f" "5c4cd54451a299fef985d5fce7d923ae2683b4436a1fa14a54779d1075d1958e"`
[INFO] [stdout] 5c4cd54451a299fef985d5fce7d923ae2683b4436a1fa14a54779d1075d1958e