[INFO] updating cached repository https://github.com/p0wp0wpanda/imprint
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 46ae2ea4f988ddca078f38facb099b6112353f99
[INFO] testing p0wp0wpanda/imprint against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp0wp0wpanda%2Fimprint" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/p0wp0wpanda/imprint on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/p0wp0wpanda/imprint
[INFO] finished tweaking git repo https://github.com/p0wp0wpanda/imprint
[INFO] tweaked toml for git repo https://github.com/p0wp0wpanda/imprint written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/p0wp0wpanda/imprint already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] fd2922d6d993d8c75b71a9ab115a7e202872155b16e65d3953043f553e3df635
[INFO] running `"docker" "start" "-a" "fd2922d6d993d8c75b71a9ab115a7e202872155b16e65d3953043f553e3df635"`
[INFO] [stderr]    Compiling images v0.1.0 (/opt/rustwide/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 0.24s
[INFO] running `"docker" "inspect" "fd2922d6d993d8c75b71a9ab115a7e202872155b16e65d3953043f553e3df635"`
[INFO] running `"docker" "rm" "-f" "fd2922d6d993d8c75b71a9ab115a7e202872155b16e65d3953043f553e3df635"`
[INFO] [stdout] fd2922d6d993d8c75b71a9ab115a7e202872155b16e65d3953043f553e3df635
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9a6d278422caa46a2cb62a7c44eb926978180145aa8bc17c091ffe10fb2f40bc
[INFO] running `"docker" "start" "-a" "9a6d278422caa46a2cb62a7c44eb926978180145aa8bc17c091ffe10fb2f40bc"`
[INFO] [stderr]    Compiling images v0.1.0 (/opt/rustwide/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 0.24s
[INFO] running `"docker" "inspect" "9a6d278422caa46a2cb62a7c44eb926978180145aa8bc17c091ffe10fb2f40bc"`
[INFO] running `"docker" "rm" "-f" "9a6d278422caa46a2cb62a7c44eb926978180145aa8bc17c091ffe10fb2f40bc"`
[INFO] [stdout] 9a6d278422caa46a2cb62a7c44eb926978180145aa8bc17c091ffe10fb2f40bc
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] a8def48cb775201e9dc714a517236f8f96750bb6a24ac9913cdb5d33c5b96d6f
[INFO] running `"docker" "start" "-a" "a8def48cb775201e9dc714a517236f8f96750bb6a24ac9913cdb5d33c5b96d6f"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/images-3a8e5f8ea61cea6f
[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" "a8def48cb775201e9dc714a517236f8f96750bb6a24ac9913cdb5d33c5b96d6f"`
[INFO] running `"docker" "rm" "-f" "a8def48cb775201e9dc714a517236f8f96750bb6a24ac9913cdb5d33c5b96d6f"`
[INFO] [stdout] a8def48cb775201e9dc714a517236f8f96750bb6a24ac9913cdb5d33c5b96d6f