[INFO] updating cached repository https://github.com/sabartheman/Rust_huffman_parallel [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] 9856ae702e29f7289fba9dfd14c861fcacf1362d [INFO] testing sabartheman/Rust_huffman_parallel against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsabartheman%2FRust_huffman_parallel" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sabartheman/Rust_huffman_parallel on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/sabartheman/Rust_huffman_parallel [INFO] finished tweaking git repo https://github.com/sabartheman/Rust_huffman_parallel [INFO] tweaked toml for git repo https://github.com/sabartheman/Rust_huffman_parallel written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/sabartheman/Rust_huffman_parallel already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stdout] 58f9a3d2767ba6bbe77cefab0269564ddb7ead5b38c4fe6bc94a3046a7f29468 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "58f9a3d2767ba6bbe77cefab0269564ddb7ead5b38c4fe6bc94a3046a7f29468"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling crossbeam v0.3.0 [INFO] [stderr] Compiling huffman_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/main.rs:103:32 [INFO] [stderr] | [INFO] [stderr] 103 | assign_codes(l, h, (s.clone() + "0")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/main.rs:106:32 [INFO] [stderr] | [INFO] [stderr] 106 | assign_codes(r, h, (s.clone() + "1")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string() [INFO] [stderr] --> src/main.rs:50:56 [INFO] [stderr] | [INFO] [stderr] 50 | ... why.description()), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string() [INFO] [stderr] --> src/main.rs:57:65 [INFO] [stderr] | [INFO] [stderr] 57 | Err(why) => panic!("couldn't read {}: {}", display, why.description()), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:322:25 [INFO] [stderr] | [INFO] [stderr] 322 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:352:25 [INFO] [stderr] | [INFO] [stderr] 352 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:381:25 [INFO] [stderr] | [INFO] [stderr] 381 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:410:25 [INFO] [stderr] | [INFO] [stderr] 410 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:499:16 [INFO] [stderr] | [INFO] [stderr] 499 | if let Err(e) = writeln!(file, "{},{},{},{},{},{},{},", tp1_finish - tp1_start, tp2_finish - tp2_start, tp3_finish - tp3_start, tp4_finish - tp4_start, t3-t1, t2-s2, t3-s3) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.20s [INFO] running `"docker" "inspect" "58f9a3d2767ba6bbe77cefab0269564ddb7ead5b38c4fe6bc94a3046a7f29468"` [INFO] running `"docker" "rm" "-f" "58f9a3d2767ba6bbe77cefab0269564ddb7ead5b38c4fe6bc94a3046a7f29468"` [INFO] [stdout] 58f9a3d2767ba6bbe77cefab0269564ddb7ead5b38c4fe6bc94a3046a7f29468 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c3dc5410704fb9d82249762d546e6c0dc6d32efdb392ceab7bacf48c1c3f8a4b [INFO] running `"docker" "start" "-a" "c3dc5410704fb9d82249762d546e6c0dc6d32efdb392ceab7bacf48c1c3f8a4b"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling huffman_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/main.rs:103:32 [INFO] [stderr] | [INFO] [stderr] 103 | assign_codes(l, h, (s.clone() + "0")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/main.rs:106:32 [INFO] [stderr] | [INFO] [stderr] 106 | assign_codes(r, h, (s.clone() + "1")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string() [INFO] [stderr] --> src/main.rs:50:56 [INFO] [stderr] | [INFO] [stderr] 50 | ... why.description()), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string() [INFO] [stderr] --> src/main.rs:57:65 [INFO] [stderr] | [INFO] [stderr] 57 | Err(why) => panic!("couldn't read {}: {}", display, why.description()), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:322:25 [INFO] [stderr] | [INFO] [stderr] 322 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:352:25 [INFO] [stderr] | [INFO] [stderr] 352 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:381:25 [INFO] [stderr] | [INFO] [stderr] 381 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:410:25 [INFO] [stderr] | [INFO] [stderr] 410 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:499:16 [INFO] [stderr] | [INFO] [stderr] 499 | if let Err(e) = writeln!(file, "{},{},{},{},{},{},{},", tp1_finish - tp1_start, tp2_finish - tp2_start, tp3_finish - tp3_start, tp4_finish - tp4_start, t3-t1, t2-s2, t3-s3) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.87s [INFO] running `"docker" "inspect" "c3dc5410704fb9d82249762d546e6c0dc6d32efdb392ceab7bacf48c1c3f8a4b"` [INFO] running `"docker" "rm" "-f" "c3dc5410704fb9d82249762d546e6c0dc6d32efdb392ceab7bacf48c1c3f8a4b"` [INFO] [stdout] c3dc5410704fb9d82249762d546e6c0dc6d32efdb392ceab7bacf48c1c3f8a4b [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stdout] 91ac9f0f3a699a26b3cc7ae056b9400e46934567861ac92db77a3fabd18eb342 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "91ac9f0f3a699a26b3cc7ae056b9400e46934567861ac92db77a3fabd18eb342"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/main.rs:103:32 [INFO] [stderr] | [INFO] [stderr] 103 | assign_codes(l, h, (s.clone() + "0")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/main.rs:106:32 [INFO] [stderr] | [INFO] [stderr] 106 | assign_codes(r, h, (s.clone() + "1")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string() [INFO] [stderr] --> src/main.rs:50:56 [INFO] [stderr] | [INFO] [stderr] 50 | ... why.description()), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string() [INFO] [stderr] --> src/main.rs:57:65 [INFO] [stderr] | [INFO] [stderr] 57 | Err(why) => panic!("couldn't read {}: {}", display, why.description()), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:322:25 [INFO] [stderr] | [INFO] [stderr] 322 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:352:25 [INFO] [stderr] | [INFO] [stderr] 352 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:381:25 [INFO] [stderr] | [INFO] [stderr] 381 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i` is never read [INFO] [stderr] --> src/main.rs:410:25 [INFO] [stderr] | [INFO] [stderr] 410 | i = i + 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:499:16 [INFO] [stderr] | [INFO] [stderr] 499 | if let Err(e) = writeln!(file, "{},{},{},{},{},{},{},", tp1_finish - tp1_start, tp2_finish - tp2_start, tp3_finish - tp3_start, tp4_finish - tp4_start, t3-t1, t2-s2, t3-s3) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/huffman_rust-7dd7eb5c400e83db [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" "91ac9f0f3a699a26b3cc7ae056b9400e46934567861ac92db77a3fabd18eb342"` [INFO] running `"docker" "rm" "-f" "91ac9f0f3a699a26b3cc7ae056b9400e46934567861ac92db77a3fabd18eb342"` [INFO] [stdout] 91ac9f0f3a699a26b3cc7ae056b9400e46934567861ac92db77a3fabd18eb342