[INFO] updating cached repository Xanewok/simple_fmt
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Xanewok/simple_fmt
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Xanewok/simple_fmt" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Xanewok/simple_fmt"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Xanewok/simple_fmt'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Xanewok/simple_fmt" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Xanewok/simple_fmt"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Xanewok/simple_fmt'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0910b3db3992f3f0782eaf889bcb4d59d7df4b78
[INFO] sha for GitHub repo Xanewok/simple_fmt: 0910b3db3992f3f0782eaf889bcb4d59d7df4b78
[INFO] validating manifest of Xanewok/simple_fmt on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Xanewok/simple_fmt on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Xanewok/simple_fmt
[INFO] finished frobbing Xanewok/simple_fmt
[INFO] frobbed toml for Xanewok/simple_fmt written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Xanewok/simple_fmt/Cargo.toml
[INFO] started frobbing Xanewok/simple_fmt
[INFO] finished frobbing Xanewok/simple_fmt
[INFO] frobbed toml for Xanewok/simple_fmt written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Xanewok/simple_fmt/Cargo.toml
[INFO] crate Xanewok/simple_fmt already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Xanewok/simple_fmt against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-2/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Xanewok/simple_fmt:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d1594bca09edfdccbb352d8da251dad6ce7d800e701d5726b83dd94f02c76f46
[INFO] running `"docker" "start" "-a" "d1594bca09edfdccbb352d8da251dad6ce7d800e701d5726b83dd94f02c76f46"`
[INFO] [stderr]    Compiling rustc-rayon-core v0.1.1
[INFO] [stderr]     Checking rustc-ap-graphviz v297.0.0
[INFO] [stderr]    Compiling simd v0.2.3
[INFO] [stderr]    Compiling rustc-ap-rustc_target v297.0.0
[INFO] [stderr]    Compiling rustc-ap-syntax v297.0.0
[INFO] [stderr]    Compiling rustfmt-nightly v1.0.0
[INFO] [stderr]    Compiling serde v1.0.81
[INFO] [stderr]     Checking ena v0.9.3
[INFO] [stderr]     Checking rustc-ap-rustc_cratesio_shim v297.0.0
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr] error[E0277]: the trait bound `std::borrow::Cow<'_, str>: std::convert::From<core::str::EscapeDefault<'_>>` is not satisfied
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-graphviz-297.0.0/lib.rs:551:44
[INFO] [stderr]     |
[INFO] [stderr] 551 |                     (&*s).escape_default().into()
[INFO] [stderr]     |                                            ^^^^ the trait `std::convert::From<core::str::EscapeDefault<'_>>` is not implemented for `std::borrow::Cow<'_, str>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the following implementations were found:
[INFO] [stderr]               <std::borrow::Cow<'a, [T]> as std::convert::From<&'a [T]>>
[INFO] [stderr]               <std::borrow::Cow<'a, [T]> as std::convert::From<&'a std::vec::Vec<T>>>
[INFO] [stderr]               <std::borrow::Cow<'a, [T]> as std::convert::From<std::vec::Vec<T>>>
[INFO] [stderr]               <std::borrow::Cow<'a, std::ffi::CStr> as std::convert::From<&'a std::ffi::CStr>>
[INFO] [stderr]             and 11 others
[INFO] [stderr]     = note: required because of the requirements on the impl of `std::convert::Into<std::borrow::Cow<'_, str>>` for `core::str::EscapeDefault<'_>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `rustc-ap-graphviz`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "d1594bca09edfdccbb352d8da251dad6ce7d800e701d5726b83dd94f02c76f46"`
[INFO] running `"docker" "rm" "-f" "d1594bca09edfdccbb352d8da251dad6ce7d800e701d5726b83dd94f02c76f46"`
[INFO] [stdout] d1594bca09edfdccbb352d8da251dad6ce7d800e701d5726b83dd94f02c76f46