[INFO] fetching crate serde_canonical 0.1.0...
[INFO] extracting crate serde_canonical 0.1.0 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/serde_canonical/0.1.0
[INFO] extracting crate serde_canonical 0.1.0 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/serde_canonical/0.1.0
[INFO] validating manifest of serde_canonical-0.1.0 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of serde_canonical-0.1.0 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing serde_canonical-0.1.0
[INFO] finished frobbing serde_canonical-0.1.0
[INFO] frobbed toml for serde_canonical-0.1.0 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/serde_canonical/0.1.0/Cargo.toml
[INFO] started frobbing serde_canonical-0.1.0
[INFO] finished frobbing serde_canonical-0.1.0
[INFO] frobbed toml for serde_canonical-0.1.0 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/serde_canonical/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking serde_canonical-0.1.0 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-2/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/serde_canonical/0.1.0:/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=forbid" "-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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 06cbd8e88250f778f3b63bb05b7fa96c2526bbe3b71eadb8a9e42a1ff9eb697b
[INFO] running `"docker" "start" "-a" "06cbd8e88250f778f3b63bb05b7fa96c2526bbe3b71eadb8a9e42a1ff9eb697b"`
[INFO] [stderr]     Checking serde_canonical v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: outlives requirements can be inferred
[INFO] [stderr]    --> src/ser.rs:340:24
[INFO] [stderr]     |
[INFO] [stderr] 340 | pub enum Compound<'a, W: 'a>
[INFO] [stderr]     |                        ^^^^ help: remove this bound
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:2:9
[INFO] [stderr]     |
[INFO] [stderr] 2   | #![warn(rust_2018_idioms)]
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: #[warn(explicit_outlives_requirements)] implied by #[warn(rust_2018_idioms)]
[INFO] [stderr] 
[INFO] [stderr] warning: outlives requirements can be inferred
[INFO] [stderr]    --> src/ser.rs:463:34
[INFO] [stderr]     |
[INFO] [stderr] 463 | pub enum OrderedKeyCompound<'a, W: 'a>
[INFO] [stderr]     |                                  ^^^^ help: remove this bound
[INFO] [stderr] 
[INFO] [stderr] error: outlives requirements can be inferred
[INFO] [stderr]    --> src/ser.rs:340:24
[INFO] [stderr]     |
[INFO] [stderr] 340 | pub enum Compound<'a, W: 'a>
[INFO] [stderr]     |                        ^^^^ help: remove this bound
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:1:24
[INFO] [stderr]     |
[INFO] [stderr] 1   | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: #[deny(explicit_outlives_requirements)] implied by #[deny(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: outlives requirements can be inferred
[INFO] [stderr]    --> src/ser.rs:463:34
[INFO] [stderr]     |
[INFO] [stderr] 463 | pub enum OrderedKeyCompound<'a, W: 'a>
[INFO] [stderr]     |                                  ^^^^ help: remove this bound
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `serde_canonical`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "06cbd8e88250f778f3b63bb05b7fa96c2526bbe3b71eadb8a9e42a1ff9eb697b"`
[INFO] running `"docker" "rm" "-f" "06cbd8e88250f778f3b63bb05b7fa96c2526bbe3b71eadb8a9e42a1ff9eb697b"`
[INFO] [stdout] 06cbd8e88250f778f3b63bb05b7fa96c2526bbe3b71eadb8a9e42a1ff9eb697b