[INFO] cloning repository media-io/timed-text-wasm
[INFO] running `"git" "clone" "--bare" "git://github.com/media-io/timed-text-wasm.git" "work/cache/sources/gh/media-io/timed-text-wasm"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/media-io/timed-text-wasm'...
[INFO] running `"git" "clone" "work/cache/sources/gh/media-io/timed-text-wasm" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/media-io/timed-text-wasm"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/media-io/timed-text-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/media-io/timed-text-wasm" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/media-io/timed-text-wasm"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/media-io/timed-text-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 23b0093a4918595e9594704428786cf21a752639
[INFO] sha for GitHub repo media-io/timed-text-wasm: 23b0093a4918595e9594704428786cf21a752639
[INFO] validating manifest of media-io/timed-text-wasm on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of media-io/timed-text-wasm on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing media-io/timed-text-wasm
[INFO] finished frobbing media-io/timed-text-wasm
[INFO] frobbed toml for media-io/timed-text-wasm written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/media-io/timed-text-wasm/Cargo.toml
[INFO] started frobbing media-io/timed-text-wasm
[INFO] finished frobbing media-io/timed-text-wasm
[INFO] frobbed toml for media-io/timed-text-wasm written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/media-io/timed-text-wasm/Cargo.toml
[INFO] crate media-io/timed-text-wasm has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.16
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.16
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.16
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.16
[INFO] [stderr]   Downloaded console_error_panic_hook v0.1.4
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.16
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking media-io/timed-text-wasm against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-2/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/media-io/timed-text-wasm:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ceb6156b856038ad967ba9a96b0d282cc867552e51ba98b889ff264b105fc451
[INFO] running `"docker" "start" "-a" "ceb6156b856038ad967ba9a96b0d282cc867552e51ba98b889ff264b105fc451"`
[INFO] [stderr] warning: `default-features = [".."]` was found in [features]. Did you mean to use `default = [".."]`?
[INFO] [stderr]    Compiling proc-macro2 v0.4.12
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.16
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]    Compiling ryu v0.2.3
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.12/src/unstable.rs:346:27
[INFO] [stderr]     |
[INFO] [stderr] 346 |             Span::Nightly(proc_macro::Span::def_site())
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: Could not compile `proc-macro2`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ceb6156b856038ad967ba9a96b0d282cc867552e51ba98b889ff264b105fc451"`
[INFO] running `"docker" "rm" "-f" "ceb6156b856038ad967ba9a96b0d282cc867552e51ba98b889ff264b105fc451"`
[INFO] [stdout] ceb6156b856038ad967ba9a96b0d282cc867552e51ba98b889ff264b105fc451