[INFO] updating cached repository https://github.com/devashishkatoriya/rust_basics [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] 8d511ad5e465e07fdc6bec9d942f79acecad04f3 [INFO] checking devashishkatoriya/rust_basics against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdevashishkatoriya%2Frust_basics" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/devashishkatoriya/rust_basics on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/devashishkatoriya/rust_basics [INFO] finished tweaking git repo https://github.com/devashishkatoriya/rust_basics [INFO] tweaked toml for git repo https://github.com/devashishkatoriya/rust_basics written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/devashishkatoriya/rust_basics already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 63b4cbca3503944a91e2168b00ca74e70a00d4d5c2f0c265d488a8ad2d698f92 [INFO] running `"docker" "start" "-a" "63b4cbca3503944a91e2168b00ca74e70a00d4d5c2f0c265d488a8ad2d698f92"` [INFO] [stderr] Checking import_files v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/files.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let mut data = read_file(path); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/files.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let mut data = read_file(path); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] error[E0381]: borrow of possibly-uninitialized variable: `temp` [INFO] [stderr] --> src/files.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | temp.push_str(&line?); [INFO] [stderr] | ^^^^ use of possibly-uninitialized `temp` [INFO] [stderr] [INFO] [stderr] error[E0382]: use of moved value: `line` [INFO] [stderr] --> src/files.rs:36:24 [INFO] [stderr] | [INFO] [stderr] 34 | for line in buffered.lines() { [INFO] [stderr] | ---- move occurs because `line` has type `std::result::Result`, which does not implement the `Copy` trait [INFO] [stderr] 35 | println!("{}", line?); [INFO] [stderr] | ---- value moved here [INFO] [stderr] 36 | temp.push_str(&line?); [INFO] [stderr] | ^^^^ value used here after move [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0381, E0382. [INFO] [stderr] For more information about an error, try `rustc --explain E0381`. [INFO] [stderr] error: could not compile `import_files`. [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[E0381]: borrow of possibly-uninitialized variable: `temp` [INFO] [stderr] --> src/files.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | temp.push_str(&line?); [INFO] [stderr] | ^^^^ use of possibly-uninitialized `temp` [INFO] [stderr] [INFO] [stderr] error[E0382]: use of moved value: `line` [INFO] [stderr] --> src/files.rs:36:24 [INFO] [stderr] | [INFO] [stderr] 34 | for line in buffered.lines() { [INFO] [stderr] | ---- move occurs because `line` has type `std::result::Result`, which does not implement the `Copy` trait [INFO] [stderr] 35 | println!("{}", line?); [INFO] [stderr] | ---- value moved here [INFO] [stderr] 36 | temp.push_str(&line?); [INFO] [stderr] | ^^^^ value used here after move [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0381, E0382. [INFO] [stderr] For more information about an error, try `rustc --explain E0381`. [INFO] [stderr] error: could not compile `import_files`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "63b4cbca3503944a91e2168b00ca74e70a00d4d5c2f0c265d488a8ad2d698f92"` [INFO] running `"docker" "rm" "-f" "63b4cbca3503944a91e2168b00ca74e70a00d4d5c2f0c265d488a8ad2d698f92"` [INFO] [stdout] 63b4cbca3503944a91e2168b00ca74e70a00d4d5c2f0c265d488a8ad2d698f92