[INFO] crate rgb 0.8.14 is already in cache
[INFO] checking rgb-0.8.14 against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] extracting crate rgb 0.8.14 into work/builds/worker-7/source
[INFO] validating manifest of crates.io crate rgb 0.8.14 on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rgb 0.8.14
[INFO] removed 2 missing examples
[INFO] finished tweaking crates.io crate rgb 0.8.14
[INFO] tweaked toml for crates.io crate rgb 0.8.14 written to work/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rgb 0.8.14 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/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=forbid" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 474cc46c608c10b88c57764fd8d45816892f1fd8bf6ec4e178a46bdf19d42580
[INFO] running `"docker" "start" "-a" "474cc46c608c10b88c57764fd8d45816892f1fd8bf6ec4e178a46bdf19d42580"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rgb v0.8.14 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/internal/ops.rs:290:69
[INFO] [stderr]     |
[INFO] [stderr] 290 |         assert_ne!(RGBA::new(255u8, 255, 0, 0), RED_RGBA+BLUE_RGBA);;
[INFO] [stderr]     |                                                                     ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `rgb::RGB<u8>: serde::ser::Serialize` is not satisfied
[INFO] [stderr]   --> examples/serde.rs:10:20
[INFO] [stderr]    |
[INFO] [stderr] 10 |     println!("{}", serde_json::to_string(&color).unwrap());
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^ the trait `serde::ser::Serialize` is not implemented for `rgb::RGB<u8>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required by `serde_json::to_string`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `rgb::RGB<u8>: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stderr]   --> examples/serde.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let color: RGB8 = serde_json::from_str("{\"r\":10,\"g\":20,\"b\":30}").unwrap();
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `rgb::RGB<u8>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required by `serde_json::from_str`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `rgb`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "474cc46c608c10b88c57764fd8d45816892f1fd8bf6ec4e178a46bdf19d42580"`
[INFO] running `"docker" "rm" "-f" "474cc46c608c10b88c57764fd8d45816892f1fd8bf6ec4e178a46bdf19d42580"`
[INFO] [stdout] 474cc46c608c10b88c57764fd8d45816892f1fd8bf6ec4e178a46bdf19d42580