[INFO] crate rocket_http 0.4.0 is already in cache
[INFO] extracting crate rocket_http 0.4.0 into work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/reg/rocket_http/0.4.0
[INFO] extracting crate rocket_http 0.4.0 into work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/reg/rocket_http/0.4.0
[INFO] validating manifest of rocket_http-0.4.0 on toolchain master#6ecad338381cc3b8d56e2df22e5971a598eddd6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rocket_http-0.4.0 on toolchain try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rocket_http-0.4.0
[INFO] finished frobbing rocket_http-0.4.0
[INFO] frobbed toml for rocket_http-0.4.0 written to work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/reg/rocket_http/0.4.0/Cargo.toml
[INFO] started frobbing rocket_http-0.4.0
[INFO] finished frobbing rocket_http-0.4.0
[INFO] frobbed toml for rocket_http-0.4.0 written to work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/reg/rocket_http/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rocket_http-0.4.0 against try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f for pr-57501
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57501/worker-3/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/reg/rocket_http/0.4.0:/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" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c6fa005efc64dcbdd1fdce4d2326f4d361a4bac7d7e28f0fecd3cdca1c65398e
[INFO] running `"docker" "start" "-a" "c6fa005efc64dcbdd1fdce4d2326f4d361a4bac7d7e28f0fecd3cdca1c65398e"`
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]     Checking pear v0.1.2
[INFO] [stderr]     Checking rocket_http v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] error: type vs variant ambiguity
[INFO] [stderr]   --> src/ext.rs:97:28
[INFO] [stderr]    |
[INFO] [stderr] 97 |     fn into_owned(self) -> Self::Owned {
[INFO] [stderr]    |                            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[forbid(type_vs_variant_ambiguity)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rocket_http`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: type vs variant ambiguity
[INFO] [stderr]   --> src/ext.rs:97:28
[INFO] [stderr]    |
[INFO] [stderr] 97 |     fn into_owned(self) -> Self::Owned {
[INFO] [stderr]    |                            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[forbid(type_vs_variant_ambiguity)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rocket_http`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c6fa005efc64dcbdd1fdce4d2326f4d361a4bac7d7e28f0fecd3cdca1c65398e"`
[INFO] running `"docker" "rm" "-f" "c6fa005efc64dcbdd1fdce4d2326f4d361a4bac7d7e28f0fecd3cdca1c65398e"`
[INFO] [stdout] c6fa005efc64dcbdd1fdce4d2326f4d361a4bac7d7e28f0fecd3cdca1c65398e