[INFO] cloning repository https://github.com/PeterHatch/color-smash
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PeterHatch/color-smash" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterHatch%2Fcolor-smash", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterHatch%2Fcolor-smash'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dddc315e7374940b7780528b841a91837dfd8854
[INFO] documenting PeterHatch/color-smash against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterHatch%2Fcolor-smash" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PeterHatch/color-smash on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PeterHatch/color-smash
[INFO] finished tweaking git repo https://github.com/PeterHatch/color-smash
[INFO] tweaked toml for git repo https://github.com/PeterHatch/color-smash written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/PeterHatch/color-smash already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getopts v0.2.21
[INFO] [stderr]   Downloaded num v0.3.0
[INFO] [stderr]   Downloaded num-bigint v0.3.0
[INFO] [stderr]   Downloaded bytemuck v1.4.0
[INFO] [stderr]   Downloaded rayon-core v1.8.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.3
[INFO] [stderr]   Downloaded gif v0.10.3
[INFO] [stderr]   Downloaded num-rational v0.3.0
[INFO] [stderr]   Downloaded deflate v0.8.6
[INFO] [stderr]   Downloaded rayon v1.4.0
[INFO] [stderr]   Downloaded image v0.23.9
[INFO] [stderr]   Downloaded png v0.16.7
[INFO] [stderr]   Downloaded adler32 v1.2.0
[INFO] [stderr]   Downloaded num-complex v0.3.0
[INFO] [stderr]   Downloaded tiff v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 954eccc520945c5131aab896000b6e4ad45c0a6e61599809929a41e34fbb7e9c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "954eccc520945c5131aab896000b6e4ad45c0a6e61599809929a41e34fbb7e9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "954eccc520945c5131aab896000b6e4ad45c0a6e61599809929a41e34fbb7e9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954eccc520945c5131aab896000b6e4ad45c0a6e61599809929a41e34fbb7e9c", kill_on_drop: false }`
[INFO] [stdout] 954eccc520945c5131aab896000b6e4ad45c0a6e61599809929a41e34fbb7e9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9d2b8b45f793aa51a4a9ae1667e928961872c902c3a9d302b0c32ccb9834797
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e9d2b8b45f793aa51a4a9ae1667e928961872c902c3a9d302b0c32ccb9834797", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ordered-float v2.0.0
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]     Checking image v0.23.9
[INFO] [stderr]  Documenting color_smash v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `png::HasParameters`
[INFO] [stdout]   --> src/images/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use png::HasParameters;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ no `HasParameters` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `color_smash`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name color_smash src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-b6b87ac485e83773.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-f720514de0286d48.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-2d0f4b1856705251.rmeta --extern ordered_float=/opt/rustwide/target/debug/deps/libordered_float-d21ab8734fd5a7fd.rmeta --extern png=/opt/rustwide/target/debug/deps/libpng-073e9e3d2a506f44.rmeta --cap-lints=warn --crate-version 0.3.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "e9d2b8b45f793aa51a4a9ae1667e928961872c902c3a9d302b0c32ccb9834797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9d2b8b45f793aa51a4a9ae1667e928961872c902c3a9d302b0c32ccb9834797", kill_on_drop: false }`
[INFO] [stdout] e9d2b8b45f793aa51a4a9ae1667e928961872c902c3a9d302b0c32ccb9834797