[INFO] crate serde_tagged 0.2.0 is already in cache
[INFO] extracting crate serde_tagged 0.2.0 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/serde_tagged/0.2.0
[INFO] extracting crate serde_tagged 0.2.0 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/serde_tagged/0.2.0
[INFO] validating manifest of serde_tagged-0.2.0 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of serde_tagged-0.2.0 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing serde_tagged-0.2.0
[INFO] finished frobbing serde_tagged-0.2.0
[INFO] frobbed toml for serde_tagged-0.2.0 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/serde_tagged/0.2.0/Cargo.toml
[INFO] started frobbing serde_tagged-0.2.0
[INFO] finished frobbing serde_tagged-0.2.0
[INFO] frobbed toml for serde_tagged-0.2.0 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/serde_tagged/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing serde_tagged-0.2.0 against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/serde_tagged/0.2.0:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 78b2d61ccb8b57660356f3eace133d84f85faa69015d650ab813b430a1dbb545
[INFO] running `"docker" "start" "-a" "78b2d61ccb8b57660356f3eace133d84f85faa69015d650ab813b430a1dbb545"`
[INFO] [stderr]    Compiling erased-serde v0.3.8
[INFO] [stderr]    Compiling serde_tagged v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.42s
[INFO] running `"docker" "inspect" "78b2d61ccb8b57660356f3eace133d84f85faa69015d650ab813b430a1dbb545"`
[INFO] running `"docker" "rm" "-f" "78b2d61ccb8b57660356f3eace133d84f85faa69015d650ab813b430a1dbb545"`
[INFO] [stdout] 78b2d61ccb8b57660356f3eace133d84f85faa69015d650ab813b430a1dbb545
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/serde_tagged/0.2.0:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] c8d6699a54c341f11ada3ce6021b134df5111c9c19a3faf7fe7db3b83eafab45
[INFO] running `"docker" "start" "-a" "c8d6699a54c341f11ada3ce6021b134df5111c9c19a3faf7fe7db3b83eafab45"`
[INFO] [stderr]    Compiling serde_tagged v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]    --> examples/trait_objects.rs:136:65
[INFO] [stderr]     |
[INFO] [stderr] 136 |         serde_tagged::ser::external::serialize(serializer, self.type_id(), &SerializeErased(self))
[INFO] [stderr]     |                                                                 ^^^^^^^ multiple `type_id` found
[INFO] [stderr]     |
[INFO] [stderr] note: candidate #1 is defined in the trait `TypeId`
[INFO] [stderr]    --> examples/trait_objects.rs:65:5
[INFO] [stderr]     |
[INFO] [stderr] 65  |     fn type_id(&self) -> &'static str;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: to disambiguate the method call, write `TypeId::type_id(&self)` instead
[INFO] [stderr] note: candidate #2 is defined in the trait `std::any::Any`
[INFO] [stderr]     = help: to disambiguate the method call, write `std::any::Any::type_id(&self)` instead
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0034`.
[INFO] [stderr] error: Could not compile `serde_tagged`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c8d6699a54c341f11ada3ce6021b134df5111c9c19a3faf7fe7db3b83eafab45"`
[INFO] running `"docker" "rm" "-f" "c8d6699a54c341f11ada3ce6021b134df5111c9c19a3faf7fe7db3b83eafab45"`
[INFO] [stdout] c8d6699a54c341f11ada3ce6021b134df5111c9c19a3faf7fe7db3b83eafab45