[INFO] updating cached repository https://github.com/suzumi/grep [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] bb02fc09ed1783601e946e537445f2136d1739ce [INFO] checking suzumi/grep against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuzumi%2Fgrep" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/suzumi/grep on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/suzumi/grep [INFO] finished tweaking git repo https://github.com/suzumi/grep [INFO] tweaked toml for git repo https://github.com/suzumi/grep written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/suzumi/grep already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] e31ab05a04cf81b14c1752a82c9921959b4e16ce1555c664def6fa049e9da992 [INFO] running `"docker" "start" "-a" "e31ab05a04cf81b14c1752a82c9921959b4e16ce1555c664def6fa049e9da992"` [INFO] [stderr] Checking regex-syntax v0.3.7 [INFO] [stderr] Checking utf8-ranges v0.1.3 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking aho-corasick v0.5.3 [INFO] [stderr] Checking thread-id v2.0.0 [INFO] [stderr] Checking thread_local v0.2.7 [INFO] [stderr] Checking regex v0.1.77 [INFO] [stderr] Checking grep v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:9:18 [INFO] [stderr] | [INFO] [stderr] 9 | let mut file = try!(File::open(filename)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:11:3 [INFO] [stderr] | [INFO] [stderr] 11 | try!(file.read_to_string(&mut content)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] error[E0061]: this function takes 1 argument but 2 arguments were supplied [INFO] [stderr] --> src/main.rs:16:12 [INFO] [stderr] | [INFO] [stderr] 16 | let re = Regex::new(r"{}+", pattern).unwrap(); [INFO] [stderr] | ^^^^^^^^^^ ------ ------- supplied 2 arguments [INFO] [stderr] | | [INFO] [stderr] | expected 1 argument [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:9:18 [INFO] [stderr] | [INFO] [stderr] 9 | let mut file = try!(File::open(filename)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:11:3 [INFO] [stderr] | [INFO] [stderr] 11 | try!(file.read_to_string(&mut content)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:17:26 [INFO] [stderr] | [INFO] [stderr] 17 | let caps = re.captures(content).unwrap(); [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | expected `&str`, found struct `std::string::String` [INFO] [stderr] | help: consider borrowing here: `&content` [INFO] [stderr] [INFO] [stderr] error[E0061]: this function takes 1 argument but 2 arguments were supplied [INFO] [stderr] --> src/main.rs:16:12 [INFO] [stderr] | [INFO] [stderr] 16 | let re = Regex::new(r"{}+", pattern).unwrap(); [INFO] [stderr] | ^^^^^^^^^^ ------ ------- supplied 2 arguments [INFO] [stderr] | | [INFO] [stderr] | expected 1 argument [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:17:26 [INFO] [stderr] | [INFO] [stderr] 17 | let caps = re.captures(content).unwrap(); [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | expected `&str`, found struct `std::string::String` [INFO] [stderr] | help: consider borrowing here: `&content` [INFO] [stderr] [INFO] [stderr] error[E0277]: `()` doesn't implement `std::fmt::Display` [INFO] [stderr] --> src/main.rs:26:20 [INFO] [stderr] | [INFO] [stderr] 26 | println!("{}", match read_file(args[2].clone()) { [INFO] [stderr] | ____________________^ [INFO] [stderr] 27 | | Ok(content) => { [INFO] [stderr] 28 | | extract_pattern(args[1], content) [INFO] [stderr] 29 | | }, [INFO] [stderr] 30 | | Err(reason) => panic!("{}", reason) [INFO] [stderr] 31 | | }); [INFO] [stderr] | |_____^ `()` cannot be formatted with the default formatter [INFO] [stderr] | [INFO] [stderr] = help: the trait `std::fmt::Display` is not implemented for `()` [INFO] [stderr] = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead [INFO] [stderr] = note: required by `std::fmt::Display::fmt` [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors; 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0061, E0277, E0308. [INFO] [stderr] For more information about an error, try `rustc --explain E0061`. [INFO] [stderr] error[E0277]: `()` doesn't implement `std::fmt::Display` [INFO] [stderr] --> src/main.rs:26:20 [INFO] [stderr] | [INFO] [stderr] 26 | println!("{}", match read_file(args[2].clone()) { [INFO] [stderr] | ____________________^ [INFO] [stderr] 27 | | Ok(content) => { [INFO] [stderr] 28 | | extract_pattern(args[1], content) [INFO] [stderr] 29 | | }, [INFO] [stderr] 30 | | Err(reason) => panic!("{}", reason) [INFO] [stderr] 31 | | }); [INFO] [stderr] | |_____^ `()` cannot be formatted with the default formatter [INFO] [stderr] | [INFO] [stderr] = help: the trait `std::fmt::Display` is not implemented for `()` [INFO] [stderr] = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead [INFO] [stderr] = note: required by `std::fmt::Display::fmt` [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error: could not compile `grep`. [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: aborting due to 3 previous errors; 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0061, E0277, E0308. [INFO] [stderr] For more information about an error, try `rustc --explain E0061`. [INFO] [stderr] error: could not compile `grep`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "e31ab05a04cf81b14c1752a82c9921959b4e16ce1555c664def6fa049e9da992"` [INFO] running `"docker" "rm" "-f" "e31ab05a04cf81b14c1752a82c9921959b4e16ce1555c664def6fa049e9da992"` [INFO] [stdout] e31ab05a04cf81b14c1752a82c9921959b4e16ce1555c664def6fa049e9da992