Dec 05 09:55:20.392 INFO checking nixcfg-0.2.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 09:55:20.392 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 09:55:20.810 INFO [stdout] 77e7d3ef4ad00057a9da366a005ae725ef818e041132e43c3e04f6cea027152c
Dec 05 09:55:20.819 INFO running `"docker" "start" "-a" "77e7d3ef4ad00057a9da366a005ae725ef818e041132e43c3e04f6cea027152c"`
Dec 05 09:55:22.443 INFO [stderr] usermod: no changes
Dec 05 09:55:22.580 INFO [stderr]     Checking rnix v0.4.2
Dec 05 09:55:24.756 INFO [stderr]     Checking nixcfg v0.2.0 (/source)
Dec 05 09:55:27.200 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 09:55:27.200 INFO [stderr]   --> src/main.rs:95:9
Dec 05 09:55:27.200 INFO [stderr]    |
Dec 05 09:55:27.200 INFO [stderr] 95 |         write!(file, "{}", content);
Dec 05 09:55:27.200 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 09:55:27.200 INFO [stderr]    |
Dec 05 09:55:27.200 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 09:55:27.200 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 09:55:27.200 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 05 09:55:27.200 INFO [stderr] 
Dec 05 09:55:27.200 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 09:55:27.200 INFO [stderr]    --> src/main.rs:126:13
Dec 05 09:55:27.200 INFO [stderr]     |
Dec 05 09:55:27.200 INFO [stderr] 126 |             write!(content, "{}", ast);
Dec 05 09:55:27.200 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 09:55:27.201 INFO [stderr]     |
Dec 05 09:55:27.201 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 09:55:27.201 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 05 09:55:27.201 INFO [stderr] 
Dec 05 09:55:27.367 INFO [stderr] error[E0308]: mismatched types
Dec 05 09:55:27.367 INFO [stderr]    --> src/main.rs:344:28
Dec 05 09:55:27.367 INFO [stderr]     |
Dec 05 09:55:27.367 INFO [stderr] 344 |                     value: replace_by
Dec 05 09:55:27.367 INFO [stderr]     |                            ^^^^^^^^^^
Dec 05 09:55:27.367 INFO [stderr]     |                            |
Dec 05 09:55:27.367 INFO [stderr]     |                            expected enum `std::option::Option`, found struct `std::string::String`
Dec 05 09:55:27.367 INFO [stderr]     |                            help: try using a variant of the expected type: `Some(replace_by)`
Dec 05 09:55:27.367 INFO [stderr]     |
Dec 05 09:55:27.367 INFO [stderr]     = note: expected type `std::option::Option<std::string::String>`
Dec 05 09:55:27.368 INFO [stderr]                found type `std::string::String`
Dec 05 09:55:27.368 INFO [stderr] 
Dec 05 09:55:27.368 INFO [stderr] error[E0063]: missing field `keep_eol` in initializer of `Command`
Dec 05 09:55:27.368 INFO [stderr]    --> src/main.rs:342:27
Dec 05 09:55:27.368 INFO [stderr]     |
Dec 05 09:55:27.368 INFO [stderr] 342 |                 let cmd = Command::Set {
Dec 05 09:55:27.368 INFO [stderr]     |                           ^^^^^^^^^^^^ missing `keep_eol`
Dec 05 09:55:27.368 INFO [stderr] 
Dec 05 09:55:27.375 INFO [stderr] error: aborting due to 2 previous errors
Dec 05 09:55:27.375 INFO [stderr] 
Dec 05 09:55:27.375 INFO [stderr] Some errors occurred: E0063, E0308.
Dec 05 09:55:27.375 INFO [stderr] For more information about an error, try `rustc --explain E0063`.
Dec 05 09:55:27.387 INFO [stderr] error: Could not compile `nixcfg`.
Dec 05 09:55:27.387 INFO [stderr] 
Dec 05 09:55:27.387 INFO [stderr] To learn more, run the command again with --verbose.
Dec 05 09:55:27.387 INFO [stderr] su: No module specific data is present
Dec 05 09:55:27.648 INFO running `"docker" "inspect" "77e7d3ef4ad00057a9da366a005ae725ef818e041132e43c3e04f6cea027152c"`
Dec 05 09:55:27.783 INFO running `"docker" "rm" "-f" "77e7d3ef4ad00057a9da366a005ae725ef818e041132e43c3e04f6cea027152c"`
Dec 05 09:55:28.071 INFO [stdout] 77e7d3ef4ad00057a9da366a005ae725ef818e041132e43c3e04f6cea027152c