[INFO] updating cached repository Connicpu/trollserv
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Connicpu/trollserv
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Connicpu/trollserv" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/Connicpu/trollserv"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/Connicpu/trollserv'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Connicpu/trollserv" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/Connicpu/trollserv"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/Connicpu/trollserv'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] edb8468ab2c1445e13ad82dff5d3265ad4d13daf
[INFO] sha for GitHub repo Connicpu/trollserv: edb8468ab2c1445e13ad82dff5d3265ad4d13daf
[INFO] validating manifest of Connicpu/trollserv on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Connicpu/trollserv on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Connicpu/trollserv
[INFO] finished frobbing Connicpu/trollserv
[INFO] frobbed toml for Connicpu/trollserv written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/Connicpu/trollserv/Cargo.toml
[INFO] started frobbing Connicpu/trollserv
[INFO] finished frobbing Connicpu/trollserv
[INFO] frobbed toml for Connicpu/trollserv written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/Connicpu/trollserv/Cargo.toml
[INFO] crate Connicpu/trollserv already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Connicpu/trollserv against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-2/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/Connicpu/trollserv:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a91b7ed7576ff590107f77ea57fc0b01db68a743ed085eaf4935473484ec2212
[INFO] running `"docker" "start" "-a" "a91b7ed7576ff590107f77ea57fc0b01db68a743ed085eaf4935473484ec2212"`
[INFO] [stderr]    Compiling cookie v0.6.0
[INFO] [stderr]    Compiling hyper v0.10.4
[INFO] [stderr]     Checking rocket v0.2.0
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::borrow::Cow<'_, str>: std::borrow::Borrow<_>`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.2.0/src/http/header.rs:480:47
[INFO] [stderr]     |
[INFO] [stderr] 480 |                 Header::new(key.as_str(), val.borrow())
[INFO] [stderr]     |                                               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0283`.
[INFO] [stderr] error: Could not compile `rocket`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a91b7ed7576ff590107f77ea57fc0b01db68a743ed085eaf4935473484ec2212"`
[INFO] running `"docker" "rm" "-f" "a91b7ed7576ff590107f77ea57fc0b01db68a743ed085eaf4935473484ec2212"`
[INFO] [stdout] a91b7ed7576ff590107f77ea57fc0b01db68a743ed085eaf4935473484ec2212