Dec 03 00:30:51.028 INFO testing nixcfg-0.2.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 00:30:51.028 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 00:30:51.503 INFO [stdout] 747492c7f9911277dfb0889a66b80ed3984daf445e101472fafead451981e136
Dec 03 00:30:51.507 INFO running `"docker" "start" "-a" "747492c7f9911277dfb0889a66b80ed3984daf445e101472fafead451981e136"`
Dec 03 00:30:52.371 INFO [stderr] usermod: no changes
Dec 03 00:30:52.519 INFO [stderr]    Compiling rnix v0.4.2
Dec 03 00:30:56.016 INFO [stderr]    Compiling nixcfg v0.2.0 (/source)
Dec 03 00:30:58.846 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 03 00:30:58.846 INFO [stderr]   --> src/main.rs:95:9
Dec 03 00:30:58.846 INFO [stderr]    |
Dec 03 00:30:58.846 INFO [stderr] 95 |         write!(file, "{}", content);
Dec 03 00:30:58.846 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 00:30:58.846 INFO [stderr]    |
Dec 03 00:30:58.846 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 03 00:30:58.846 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 03 00:30:58.846 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 03 00:30:58.846 INFO [stderr] 
Dec 03 00:30:58.846 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 03 00:30:58.846 INFO [stderr]    --> src/main.rs:126:13
Dec 03 00:30:58.846 INFO [stderr]     |
Dec 03 00:30:58.846 INFO [stderr] 126 |             write!(content, "{}", ast);
Dec 03 00:30:58.846 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 00:30:58.846 INFO [stderr]     |
Dec 03 00:30:58.846 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 03 00:30:58.846 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 03 00:30:58.846 INFO [stderr] 
Dec 03 00:31:00.590 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.20s
Dec 03 00:31:00.600 INFO [stderr] su: No module specific data is present
Dec 03 00:31:01.104 INFO running `"docker" "inspect" "747492c7f9911277dfb0889a66b80ed3984daf445e101472fafead451981e136"`
Dec 03 00:31:01.209 INFO running `"docker" "rm" "-f" "747492c7f9911277dfb0889a66b80ed3984daf445e101472fafead451981e136"`
Dec 03 00:31:01.319 INFO [stdout] 747492c7f9911277dfb0889a66b80ed3984daf445e101472fafead451981e136
Dec 03 00:31:01.321 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 00:31:01.498 INFO [stdout] 4349e4f59362c508539cae425e93a3c570d44e247bb6c32c29f2b31e21f61f46
Dec 03 00:31:01.500 INFO running `"docker" "start" "-a" "4349e4f59362c508539cae425e93a3c570d44e247bb6c32c29f2b31e21f61f46"`
Dec 03 00:31:02.103 INFO [stderr] usermod: no changes
Dec 03 00:31:02.207 INFO [stderr]    Compiling nixcfg v0.2.0 (/source)
Dec 03 00:31:04.479 INFO [stderr] error[E0308]: mismatched types
Dec 03 00:31:04.479 INFO [stderr]    --> src/main.rs:344:28
Dec 03 00:31:04.479 INFO [stderr]     |
Dec 03 00:31:04.479 INFO [stderr] 344 |                     value: replace_by
Dec 03 00:31:04.479 INFO [stderr]     |                            ^^^^^^^^^^
Dec 03 00:31:04.479 INFO [stderr]     |                            |
Dec 03 00:31:04.479 INFO [stderr]     |                            expected enum `std::option::Option`, found struct `std::string::String`
Dec 03 00:31:04.479 INFO [stderr]     |                            help: try using a variant of the expected type: `Some(replace_by)`
Dec 03 00:31:04.479 INFO [stderr]     |
Dec 03 00:31:04.479 INFO [stderr]     = note: expected type `std::option::Option<std::string::String>`
Dec 03 00:31:04.479 INFO [stderr]                found type `std::string::String`
Dec 03 00:31:04.479 INFO [stderr] 
Dec 03 00:31:04.479 INFO [stderr] error[E0063]: missing field `keep_eol` in initializer of `Command`
Dec 03 00:31:04.479 INFO [stderr]    --> src/main.rs:342:27
Dec 03 00:31:04.479 INFO [stderr]     |
Dec 03 00:31:04.479 INFO [stderr] 342 |                 let cmd = Command::Set {
Dec 03 00:31:04.479 INFO [stderr]     |                           ^^^^^^^^^^^^ missing `keep_eol`
Dec 03 00:31:04.479 INFO [stderr] 
Dec 03 00:31:04.486 INFO [stderr] error: aborting due to 2 previous errors
Dec 03 00:31:04.486 INFO [stderr] 
Dec 03 00:31:04.486 INFO [stderr] Some errors occurred: E0063, E0308.
Dec 03 00:31:04.486 INFO [stderr] For more information about an error, try `rustc --explain E0063`.
Dec 03 00:31:04.497 INFO [stderr] error: Could not compile `nixcfg`.
Dec 03 00:31:04.497 INFO [stderr] 
Dec 03 00:31:04.497 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 00:31:04.501 INFO [stderr] su: No module specific data is present
Dec 03 00:31:04.854 INFO running `"docker" "inspect" "4349e4f59362c508539cae425e93a3c570d44e247bb6c32c29f2b31e21f61f46"`
Dec 03 00:31:04.952 INFO running `"docker" "rm" "-f" "4349e4f59362c508539cae425e93a3c570d44e247bb6c32c29f2b31e21f61f46"`
Dec 03 00:31:05.067 INFO [stdout] 4349e4f59362c508539cae425e93a3c570d44e247bb6c32c29f2b31e21f61f46