[INFO] updating cached repository werner/focusvent
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/werner/focusvent
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/werner/focusvent" "work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/werner/focusvent"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/werner/focusvent'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/werner/focusvent" "work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/werner/focusvent"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/werner/focusvent'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0d878eece6b0fadd0df4b942189fe29fe9df2e17
[INFO] sha for GitHub repo werner/focusvent: 0d878eece6b0fadd0df4b942189fe29fe9df2e17
[INFO] validating manifest of werner/focusvent on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of werner/focusvent on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing werner/focusvent
[INFO] finished frobbing werner/focusvent
[INFO] frobbed toml for werner/focusvent written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/werner/focusvent/Cargo.toml
[INFO] started frobbing werner/focusvent
[INFO] finished frobbing werner/focusvent
[INFO] frobbed toml for werner/focusvent written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/werner/focusvent/Cargo.toml
[INFO] crate werner/focusvent has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking werner/focusvent against master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-0/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/werner/focusvent:/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" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fb2bb485e39cf1cb473888c42473bb09f73ed0115139d66860a0e07bb2191f7e
[INFO] running `"docker" "start" "-a" "fb2bb485e39cf1cb473888c42473bb09f73ed0115139d66860a0e07bb2191f7e"`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling pear_codegen v0.0.20
[INFO] [stderr]    Compiling rocket v0.3.16
[INFO] [stderr]    Compiling rocket_codegen v0.3.16
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling courier v0.3.1
[INFO] [stderr]    Compiling diesel-derive-enum v0.4.4
[INFO] [stderr]    Compiling diesel_derives v1.3.0
[INFO] [stderr]    Compiling syn v0.15.4
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr] error[E0599]: no variant named `concat` found for type `syntax::tokenstream::TokenStream` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.20/src/lib.rs:330:54
[INFO] [stderr]     |
[INFO] [stderr] 330 |                 mac.node.tts = ThinTokenStream::from(TokenStream::concat(streams));
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^ variant not found in `syntax::tokenstream::TokenStream`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `pear_codegen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "fb2bb485e39cf1cb473888c42473bb09f73ed0115139d66860a0e07bb2191f7e"`
[INFO] running `"docker" "rm" "-f" "fb2bb485e39cf1cb473888c42473bb09f73ed0115139d66860a0e07bb2191f7e"`
[INFO] [stdout] fb2bb485e39cf1cb473888c42473bb09f73ed0115139d66860a0e07bb2191f7e