[INFO] cloning repository dgoetsch/glutton [INFO] running `"git" "clone" "--bare" "git://github.com/dgoetsch/glutton.git" "work/cache/sources/gh/dgoetsch/glutton"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/dgoetsch/glutton'... [INFO] running `"git" "clone" "work/cache/sources/gh/dgoetsch/glutton" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dgoetsch/glutton"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dgoetsch/glutton'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/dgoetsch/glutton" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dgoetsch/glutton"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dgoetsch/glutton'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b1bc70e964c18f6818a90b4e4ff98afa54c907a9 [INFO] sha for GitHub repo dgoetsch/glutton: b1bc70e964c18f6818a90b4e4ff98afa54c907a9 [INFO] validating manifest of dgoetsch/glutton on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of dgoetsch/glutton on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing dgoetsch/glutton [INFO] finished frobbing dgoetsch/glutton [INFO] frobbed toml for dgoetsch/glutton written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dgoetsch/glutton/Cargo.toml [INFO] started frobbing dgoetsch/glutton [INFO] finished frobbing dgoetsch/glutton [INFO] frobbed toml for dgoetsch/glutton written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dgoetsch/glutton/Cargo.toml [INFO] crate dgoetsch/glutton already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing dgoetsch/glutton against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dgoetsch/glutton:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"` [INFO] [stdout] c1f1a4378509f3f6ea2c364c95b585cc56b634b1eb8366093df5ec8bfa0d23f0 [INFO] running `"docker" "start" "-a" "c1f1a4378509f3f6ea2c364c95b585cc56b634b1eb8366093df5ec8bfa0d23f0"` [INFO] [stderr] Compiling rust-by-ex v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::iter::Map` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::iter::Map; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` head expression [INFO] [stderr] --> src/main.rs:18:21 [INFO] [stderr] | [INFO] [stderr] 18 | for idx in (0..self.at_a_time) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'rand::Rng::gen_ascii_chars': use sample_iter(&Alphanumeric) instead [INFO] [stderr] --> src/main.rs:32:33 [INFO] [stderr] | [INFO] [stderr] 32 | let name = thread_rng().gen_ascii_chars().take(10) .collect::(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `idx` [INFO] [stderr] --> src/main.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | for idx in (0..self.at_a_time) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_idx` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cd_res` [INFO] [stderr] --> src/main.rs:38:13 [INFO] [stderr] | [INFO] [stderr] 38 | let cd_res = std::fs::create_dir_all(sub_dir.as_str()); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_cd_res` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cf_res` [INFO] [stderr] --> src/main.rs:46:13 [INFO] [stderr] | [INFO] [stderr] 46 | let cf_res = std::fs::File::create(file_name.as_str()) [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_cf_res` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | handler.join(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.96s [INFO] running `"docker" "inspect" "c1f1a4378509f3f6ea2c364c95b585cc56b634b1eb8366093df5ec8bfa0d23f0"` [INFO] running `"docker" "rm" "-f" "c1f1a4378509f3f6ea2c364c95b585cc56b634b1eb8366093df5ec8bfa0d23f0"` [INFO] [stdout] c1f1a4378509f3f6ea2c364c95b585cc56b634b1eb8366093df5ec8bfa0d23f0 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dgoetsch/glutton:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] c96e61283077e86c16057be951dc416b55d3b1171b2370a0d25c1c902a6139cd [INFO] running `"docker" "start" "-a" "c96e61283077e86c16057be951dc416b55d3b1171b2370a0d25c1c902a6139cd"` [INFO] [stderr] Compiling rust-by-ex v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::iter::Map` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::iter::Map; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` head expression [INFO] [stderr] --> src/main.rs:18:21 [INFO] [stderr] | [INFO] [stderr] 18 | for idx in (0..self.at_a_time) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'rand::Rng::gen_ascii_chars': use sample_iter(&Alphanumeric) instead [INFO] [stderr] --> src/main.rs:32:33 [INFO] [stderr] | [INFO] [stderr] 32 | let name = thread_rng().gen_ascii_chars().take(10) .collect::(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `idx` [INFO] [stderr] --> src/main.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | for idx in (0..self.at_a_time) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_idx` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cd_res` [INFO] [stderr] --> src/main.rs:38:13 [INFO] [stderr] | [INFO] [stderr] 38 | let cd_res = std::fs::create_dir_all(sub_dir.as_str()); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_cd_res` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cf_res` [INFO] [stderr] --> src/main.rs:46:13 [INFO] [stderr] | [INFO] [stderr] 46 | let cf_res = std::fs::File::create(file_name.as_str()) [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_cf_res` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | handler.join(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.65s [INFO] running `"docker" "inspect" "c96e61283077e86c16057be951dc416b55d3b1171b2370a0d25c1c902a6139cd"` [INFO] running `"docker" "rm" "-f" "c96e61283077e86c16057be951dc416b55d3b1171b2370a0d25c1c902a6139cd"` [INFO] [stdout] c96e61283077e86c16057be951dc416b55d3b1171b2370a0d25c1c902a6139cd [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dgoetsch/glutton:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"` [INFO] [stdout] 5f8079a8f6379fb7bb7f5acd1569b037e76adb2c7ea5c8cd20bb8291cc21004e [INFO] running `"docker" "start" "-a" "5f8079a8f6379fb7bb7f5acd1569b037e76adb2c7ea5c8cd20bb8291cc21004e"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/crater/target/debug/deps/rust_by_ex-99d2868a762c37e3 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "5f8079a8f6379fb7bb7f5acd1569b037e76adb2c7ea5c8cd20bb8291cc21004e"` [INFO] running `"docker" "rm" "-f" "5f8079a8f6379fb7bb7f5acd1569b037e76adb2c7ea5c8cd20bb8291cc21004e"` [INFO] [stdout] 5f8079a8f6379fb7bb7f5acd1569b037e76adb2c7ea5c8cd20bb8291cc21004e