[INFO] updating cached repository j-fro/rocket-todo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/j-fro/rocket-todo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/j-fro/rocket-todo" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/j-fro/rocket-todo"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/j-fro/rocket-todo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/j-fro/rocket-todo" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/j-fro/rocket-todo"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/j-fro/rocket-todo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ebba3a6bc3dca4b5c258b75b41807c6c659f2331
[INFO] sha for GitHub repo j-fro/rocket-todo: ebba3a6bc3dca4b5c258b75b41807c6c659f2331
[INFO] validating manifest of j-fro/rocket-todo on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of j-fro/rocket-todo on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing j-fro/rocket-todo
[INFO] finished frobbing j-fro/rocket-todo
[INFO] frobbed toml for j-fro/rocket-todo written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/j-fro/rocket-todo/Cargo.toml
[INFO] started frobbing j-fro/rocket-todo
[INFO] finished frobbing j-fro/rocket-todo
[INFO] frobbed toml for j-fro/rocket-todo written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/j-fro/rocket-todo/Cargo.toml
[INFO] crate j-fro/rocket-todo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking j-fro/rocket-todo against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-1/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/j-fro/rocket-todo:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1098725b484ce6ad311599ca43a402f77b3116b734eb28bd0b642bb95d5dcee5
[INFO] running `"docker" "start" "-a" "1098725b484ce6ad311599ca43a402f77b3116b734eb28bd0b642bb95d5dcee5"`
[INFO] [stderr]     Checking serde v0.8.22
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]    Compiling serde_codegen v0.8.22
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking hyper v0.9.14
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]    Compiling serde_derive v0.8.22
[INFO] [stderr]     Checking serde_json v0.8.4
[INFO] [stderr]     Checking rocket v0.1.4
[INFO] [stderr]     Checking handlebars v0.23.0
[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-0.1.4/src/http/header.rs:444:47
[INFO] [stderr]     |
[INFO] [stderr] 444 |                 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[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-0.1.4/src/http/header.rs:444:47
[INFO] [stderr]     |
[INFO] [stderr] 444 |                 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" "1098725b484ce6ad311599ca43a402f77b3116b734eb28bd0b642bb95d5dcee5"`
[INFO] running `"docker" "rm" "-f" "1098725b484ce6ad311599ca43a402f77b3116b734eb28bd0b642bb95d5dcee5"`
[INFO] [stdout] 1098725b484ce6ad311599ca43a402f77b3116b734eb28bd0b642bb95d5dcee5