[INFO] updating cached repository https://github.com/Morgandel/picross-solver
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8de26c881761697ae73766224e8f43ff5b7bd38d
[INFO] checking Morgandel/picross-solver against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMorgandel%2Fpicross-solver" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Morgandel/picross-solver on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Morgandel/picross-solver
[INFO] finished tweaking git repo https://github.com/Morgandel/picross-solver
[INFO] tweaked toml for git repo https://github.com/Morgandel/picross-solver written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/Morgandel/picross-solver already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] faf1e4ab5c0d44f15080922be8610f294489c6db6cc7d3a25c13b2137b75e0e6
[INFO] running `"docker" "start" "-a" "faf1e4ab5c0d44f15080922be8610f294489c6db6cc7d3a25c13b2137b75e0e6"`
[INFO] [stderr]     Checking picross-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `File`
[INFO] [stderr]  --> src/main.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let f = File::open(format!("{}{}", path, filename)).unwrap();
[INFO] [stderr]   |             ^^^^ use of undeclared type or module `File`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `BufReader`
[INFO] [stderr]  --> src/main.rs:7:18
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let reader = BufReader::new(f);
[INFO] [stderr]   |                  ^^^^^^^^^ use of undeclared type or module `BufReader`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Regex`
[INFO] [stderr]  --> src/main.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let re = Regex::new("\t").unwrap();
[INFO] [stderr]   |              ^^^^^ use of undeclared type or module `Regex`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `picross-solver`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `File`
[INFO] [stderr]  --> src/main.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let f = File::open(format!("{}{}", path, filename)).unwrap();
[INFO] [stderr]   |             ^^^^ use of undeclared type or module `File`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `BufReader`
[INFO] [stderr]  --> src/main.rs:7:18
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let reader = BufReader::new(f);
[INFO] [stderr]   |                  ^^^^^^^^^ use of undeclared type or module `BufReader`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Regex`
[INFO] [stderr]  --> src/main.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let re = Regex::new("\t").unwrap();
[INFO] [stderr]   |              ^^^^^ use of undeclared type or module `Regex`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `picross-solver`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "faf1e4ab5c0d44f15080922be8610f294489c6db6cc7d3a25c13b2137b75e0e6"`
[INFO] running `"docker" "rm" "-f" "faf1e4ab5c0d44f15080922be8610f294489c6db6cc7d3a25c13b2137b75e0e6"`
[INFO] [stdout] faf1e4ab5c0d44f15080922be8610f294489c6db6cc7d3a25c13b2137b75e0e6
