[INFO] updating cached repository sidky/comical-backend
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sidky/comical-backend
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sidky/comical-backend" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/sidky/comical-backend"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/sidky/comical-backend'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sidky/comical-backend" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/sidky/comical-backend"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/sidky/comical-backend'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4b79c3ca1b8d824d18cf2228f0685d41df353b0a
[INFO] sha for GitHub repo sidky/comical-backend: 4b79c3ca1b8d824d18cf2228f0685d41df353b0a
[INFO] validating manifest of sidky/comical-backend on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sidky/comical-backend on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sidky/comical-backend
[INFO] finished frobbing sidky/comical-backend
[INFO] frobbed toml for sidky/comical-backend written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/sidky/comical-backend/Cargo.toml
[INFO] started frobbing sidky/comical-backend
[INFO] finished frobbing sidky/comical-backend
[INFO] frobbed toml for sidky/comical-backend written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/sidky/comical-backend/Cargo.toml
[INFO] crate sidky/comical-backend already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sidky/comical-backend against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-0/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/sidky/comical-backend:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ef3424e60ebcce1bcffc5c0fba19c6553b211a6ff2b6c7ba258741b04412aa4e
[INFO] running `"docker" "start" "-a" "ef3424e60ebcce1bcffc5c0fba19c6553b211a6ff2b6c7ba258741b04412aa4e"`
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking route-recognizer v0.1.12
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]     Checking base64 v0.5.2
[INFO] [stderr]     Checking unicode-bidi v0.2.6
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking http v0.1.5
[INFO] [stderr] error[E0658]: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/route-recognizer-0.1.12/src/nfa.rs:568:3
[INFO] [stderr]     |
[INFO] [stderr] 568 | #[bench]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr]     = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/route-recognizer-0.1.12/src/nfa.rs:582:3
[INFO] [stderr]     |
[INFO] [stderr] 582 | #[bench]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr]     = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/route-recognizer-0.1.12/src/nfa.rs:596:3
[INFO] [stderr]     |
[INFO] [stderr] 596 | #[bench]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr]     = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/route-recognizer-0.1.12/src/lib.rs:332:3
[INFO] [stderr]     |
[INFO] [stderr] 332 | #[bench]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr]     = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: Could not compile `route-recognizer`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ef3424e60ebcce1bcffc5c0fba19c6553b211a6ff2b6c7ba258741b04412aa4e"`
[INFO] running `"docker" "rm" "-f" "ef3424e60ebcce1bcffc5c0fba19c6553b211a6ff2b6c7ba258741b04412aa4e"`
[INFO] [stdout] ef3424e60ebcce1bcffc5c0fba19c6553b211a6ff2b6c7ba258741b04412aa4e