[INFO] fetching crate serde_canonical 0.1.0...
[INFO] checking serde_canonical-0.1.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate serde_canonical 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate serde_canonical 0.1.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_canonical 0.1.0
[INFO] finished tweaking crates.io crate serde_canonical 0.1.0
[INFO] tweaked toml for crates.io crate serde_canonical 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d79243748baf8a08d1e5975a9db5414c2325f8ca3adcfd6663372e73b2ed57c
[INFO] running `Command { std: "docker" "start" "-a" "4d79243748baf8a08d1e5975a9db5414c2325f8ca3adcfd6663372e73b2ed57c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d79243748baf8a08d1e5975a9db5414c2325f8ca3adcfd6663372e73b2ed57c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d79243748baf8a08d1e5975a9db5414c2325f8ca3adcfd6663372e73b2ed57c", kill_on_drop: false }`
[INFO] [stdout] 4d79243748baf8a08d1e5975a9db5414c2325f8ca3adcfd6663372e73b2ed57c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "RUSTFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2143374dcf5f080db27ac85e924fecd35a692c3116de5536163b1c5de5c8d61c
[INFO] running `Command { std: "docker" "start" "-a" "2143374dcf5f080db27ac85e924fecd35a692c3116de5536163b1c5de5c8d61c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_canonical v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:15:37
[INFO] [stdout]    |
[INFO] [stdout] 15 |             Error::Io(ref error) => error::Error::description(error),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:15:37
[INFO] [stdout]    |
[INFO] [stdout] 15 |             Error::Io(ref error) => error::Error::description(error),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:24
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: outlives requirements can be inferred
[INFO] [stdout]    --> src/ser.rs:340:24
[INFO] [stdout]     |
[INFO] [stdout] 340 | pub enum Compound<'a, W: 'a>
[INFO] [stdout]     |                        ^^^^ help: remove this bound
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:9
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![warn(rust_2018_idioms)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(explicit_outlives_requirements)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: outlives requirements can be inferred
[INFO] [stdout]    --> src/ser.rs:463:34
[INFO] [stdout]     |
[INFO] [stdout] 463 | pub enum OrderedKeyCompound<'a, W: 'a>
[INFO] [stdout]     |                                  ^^^^ help: remove this bound
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_canonical`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2143374dcf5f080db27ac85e924fecd35a692c3116de5536163b1c5de5c8d61c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2143374dcf5f080db27ac85e924fecd35a692c3116de5536163b1c5de5c8d61c", kill_on_drop: false }`
[INFO] [stdout] 2143374dcf5f080db27ac85e924fecd35a692c3116de5536163b1c5de5c8d61c