[INFO] updating cached repository RandomInsano/Counter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RandomInsano/Counter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RandomInsano/Counter" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/RandomInsano/Counter"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/RandomInsano/Counter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RandomInsano/Counter" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/RandomInsano/Counter"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/RandomInsano/Counter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b30de62b46212b0011c9f112c203fd952b5a3674
[INFO] sha for GitHub repo RandomInsano/Counter: b30de62b46212b0011c9f112c203fd952b5a3674
[INFO] validating manifest of RandomInsano/Counter 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 RandomInsano/Counter 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 RandomInsano/Counter
[INFO] finished frobbing RandomInsano/Counter
[INFO] frobbed toml for RandomInsano/Counter written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/RandomInsano/Counter/Cargo.toml
[INFO] started frobbing RandomInsano/Counter
[INFO] finished frobbing RandomInsano/Counter
[INFO] frobbed toml for RandomInsano/Counter written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/RandomInsano/Counter/Cargo.toml
[INFO] crate RandomInsano/Counter 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking RandomInsano/Counter against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-7/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/RandomInsano/Counter:/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] 8b9d88b63db1fd96952c4e1c7c1911ff9a8b7b5ebca7a892af6b9b1f2e3904e4
[INFO] running `"docker" "start" "-a" "8b9d88b63db1fd96952c4e1c7c1911ff9a8b7b5ebca7a892af6b9b1f2e3904e4"`
[INFO] [stderr]     Checking memstream v0.0.1
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]     Checking enum_primitive v0.1.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.10
[INFO] [stderr]    Compiling hyper v0.9.14
[INFO] [stderr]     Checking rocket v0.1.2
[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-0.1.2/src/http/header.rs:439:33
[INFO] [stderr]     |
[INFO] [stderr] 439 |                 Header::new(key.borrow(), val.borrow())
[INFO] [stderr]     |                                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking flate2 v0.2.14
[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" "8b9d88b63db1fd96952c4e1c7c1911ff9a8b7b5ebca7a892af6b9b1f2e3904e4"`
[INFO] running `"docker" "rm" "-f" "8b9d88b63db1fd96952c4e1c7c1911ff9a8b7b5ebca7a892af6b9b1f2e3904e4"`
[INFO] [stdout] 8b9d88b63db1fd96952c4e1c7c1911ff9a8b7b5ebca7a892af6b9b1f2e3904e4