Dec 18 13:38:11.740 INFO checking nixcfg-0.2.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 13:38:11.740 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/nixcfg/0.2.0:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 13:38:11.977 INFO [stdout] b80d7d1ad65dd2e7d6ffff0d86d5808ed747280d4e2283bc75d7337ec5f3b061
Dec 18 13:38:11.979 INFO running `"docker" "start" "-a" "b80d7d1ad65dd2e7d6ffff0d86d5808ed747280d4e2283bc75d7337ec5f3b061"`
Dec 18 13:38:13.487 INFO [stderr]     Checking arenatree v0.1.3
Dec 18 13:38:13.912 INFO [stderr]     Checking rnix v0.4.2
Dec 18 13:38:15.421 INFO [stderr]     Checking nixcfg v0.2.0 (/opt/crater/workdir)
Dec 18 13:38:16.247 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:38:16.247 INFO [stderr]   --> src/main.rs:95:9
Dec 18 13:38:16.247 INFO [stderr]    |
Dec 18 13:38:16.247 INFO [stderr] 95 |         write!(file, "{}", content);
Dec 18 13:38:16.247 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:38:16.247 INFO [stderr]    |
Dec 18 13:38:16.247 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 13:38:16.247 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:38:16.247 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 13:38:16.247 INFO [stderr] 
Dec 18 13:38:16.247 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:38:16.247 INFO [stderr]    --> src/main.rs:126:13
Dec 18 13:38:16.247 INFO [stderr]     |
Dec 18 13:38:16.247 INFO [stderr] 126 |             write!(content, "{}", ast);
Dec 18 13:38:16.247 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:38:16.247 INFO [stderr]     |
Dec 18 13:38:16.247 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:38:16.247 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 13:38:16.247 INFO [stderr] 
Dec 18 13:38:16.305 INFO [stderr] error[E0308]: mismatched types
Dec 18 13:38:16.305 INFO [stderr]    --> src/main.rs:344:28
Dec 18 13:38:16.305 INFO [stderr]     |
Dec 18 13:38:16.305 INFO [stderr] 344 |                     value: replace_by
Dec 18 13:38:16.305 INFO [stderr]     |                            ^^^^^^^^^^
Dec 18 13:38:16.305 INFO [stderr]     |                            |
Dec 18 13:38:16.305 INFO [stderr]     |                            expected enum `std::option::Option`, found struct `std::string::String`
Dec 18 13:38:16.305 INFO [stderr]     |                            help: try using a variant of the expected type: `Some(replace_by)`
Dec 18 13:38:16.305 INFO [stderr]     |
Dec 18 13:38:16.305 INFO [stderr]     = note: expected type `std::option::Option<std::string::String>`
Dec 18 13:38:16.305 INFO [stderr]                found type `std::string::String`
Dec 18 13:38:16.305 INFO [stderr] 
Dec 18 13:38:16.305 INFO [stderr] error[E0063]: missing field `keep_eol` in initializer of `Command`
Dec 18 13:38:16.305 INFO [stderr]    --> src/main.rs:342:27
Dec 18 13:38:16.305 INFO [stderr]     |
Dec 18 13:38:16.305 INFO [stderr] 342 |                 let cmd = Command::Set {
Dec 18 13:38:16.305 INFO [stderr]     |                           ^^^^^^^^^^^^ missing `keep_eol`
Dec 18 13:38:16.305 INFO [stderr] 
Dec 18 13:38:16.312 INFO [stderr] error: aborting due to 2 previous errors
Dec 18 13:38:16.312 INFO [stderr] 
Dec 18 13:38:16.312 INFO [stderr] Some errors occurred: E0063, E0308.
Dec 18 13:38:16.312 INFO [stderr] For more information about an error, try `rustc --explain E0063`.
Dec 18 13:38:16.325 INFO [stderr] error: Could not compile `nixcfg`.
Dec 18 13:38:16.325 INFO [stderr] 
Dec 18 13:38:16.325 INFO [stderr] To learn more, run the command again with --verbose.
Dec 18 13:38:16.567 INFO running `"docker" "inspect" "b80d7d1ad65dd2e7d6ffff0d86d5808ed747280d4e2283bc75d7337ec5f3b061"`
Dec 18 13:38:16.629 INFO running `"docker" "rm" "-f" "b80d7d1ad65dd2e7d6ffff0d86d5808ed747280d4e2283bc75d7337ec5f3b061"`
Dec 18 13:38:16.723 INFO [stdout] b80d7d1ad65dd2e7d6ffff0d86d5808ed747280d4e2283bc75d7337ec5f3b061