[INFO] cloning repository https://github.com/sjsyrek/cormen-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sjsyrek/cormen-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjsyrek%2Fcormen-rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjsyrek%2Fcormen-rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5d48e3c79004cd805bba4e3ec5c971b1448de5f9
[INFO] testing sjsyrek/cormen-rust against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjsyrek%2Fcormen-rust" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sjsyrek/cormen-rust 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/sjsyrek/cormen-rust
[INFO] finished tweaking git repo https://github.com/sjsyrek/cormen-rust
[INFO] tweaked toml for git repo https://github.com/sjsyrek/cormen-rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/sjsyrek/cormen-rust 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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 686767c8ef810bdfd57f4ec0b3adf4c6d62c813d887c3b63452f104501c6ec15
[INFO] running `"docker" "start" "-a" "686767c8ef810bdfd57f4ec0b3adf4c6d62c813d887c3b63452f104501c6ec15"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cormen_rust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/sorts/merge_sort.rs:14:40
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut left: Vec<isize> = vec![0; (n1 + 1)];
[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/sorts/merge_sort.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut right: Vec<isize> = vec![0; (n2 + 1)];
[INFO] [stderr]    |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/utils.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |     "[".to_string() + &s.trim_right_matches(", ").to_string() + "]"
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "686767c8ef810bdfd57f4ec0b3adf4c6d62c813d887c3b63452f104501c6ec15"`
[INFO] running `"docker" "rm" "-f" "686767c8ef810bdfd57f4ec0b3adf4c6d62c813d887c3b63452f104501c6ec15"`
[INFO] [stdout] 686767c8ef810bdfd57f4ec0b3adf4c6d62c813d887c3b63452f104501c6ec15
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 43bf2a79caeedeb90972a2ba8debf56f1386cf6253a3c29d3346638c67568825
[INFO] running `"docker" "start" "-a" "43bf2a79caeedeb90972a2ba8debf56f1386cf6253a3c29d3346638c67568825"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cormen_rust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/sorts/merge_sort.rs:14:40
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut left: Vec<isize> = vec![0; (n1 + 1)];
[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/sorts/merge_sort.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut right: Vec<isize> = vec![0; (n2 + 1)];
[INFO] [stderr]    |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/utils.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |     "[".to_string() + &s.trim_right_matches(", ").to_string() + "]"
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/sorts/merge_sort.rs:14:40
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut left: Vec<isize> = vec![0; (n1 + 1)];
[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/sorts/merge_sort.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut right: Vec<isize> = vec![0; (n2 + 1)];
[INFO] [stderr]    |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/utils.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |     "[".to_string() + &s.trim_right_matches(", ").to_string() + "]"
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "43bf2a79caeedeb90972a2ba8debf56f1386cf6253a3c29d3346638c67568825"`
[INFO] running `"docker" "rm" "-f" "43bf2a79caeedeb90972a2ba8debf56f1386cf6253a3c29d3346638c67568825"`
[INFO] [stdout] 43bf2a79caeedeb90972a2ba8debf56f1386cf6253a3c29d3346638c67568825
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f63e332e7eb36a38dc3a25ed0edace2550266cdadd0a482e0fe152ba8ff57f87
[INFO] running `"docker" "start" "-a" "f63e332e7eb36a38dc3a25ed0edace2550266cdadd0a482e0fe152ba8ff57f87"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/sorts/merge_sort.rs:14:40
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut left: Vec<isize> = vec![0; (n1 + 1)];
[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/sorts/merge_sort.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut right: Vec<isize> = vec![0; (n2 + 1)];
[INFO] [stderr]    |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/utils.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |     "[".to_string() + &s.trim_right_matches(", ").to_string() + "]"
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/sorts/merge_sort.rs:14:40
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut left: Vec<isize> = vec![0; (n1 + 1)];
[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/sorts/merge_sort.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut right: Vec<isize> = vec![0; (n2 + 1)];
[INFO] [stderr]    |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/utils.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |     "[".to_string() + &s.trim_right_matches(", ").to_string() + "]"
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cormen_rust-8c9f13f0cda8fa3a
[INFO] [stderr]    Doc-tests cormen_rust
[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] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/sorts/insertion_sort.rs - sorts::insertion_sort::insertion_sort (line 5) ... ok
[INFO] [stdout] test src/sorts/merge_sort.rs - sorts::merge_sort::merge (line 5) ... ok
[INFO] [stdout] test src/sorts/selection_sort.rs - sorts::selection_sort::selection_sort (line 5) ... ok
[INFO] [stdout] test src/sorts/merge_sort.rs - sorts::merge_sort::merge_sort (line 42) ... ok
[INFO] [stdout] test src/utils.rs - utils::vec_to_str (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f63e332e7eb36a38dc3a25ed0edace2550266cdadd0a482e0fe152ba8ff57f87"`
[INFO] running `"docker" "rm" "-f" "f63e332e7eb36a38dc3a25ed0edace2550266cdadd0a482e0fe152ba8ff57f87"`
[INFO] [stdout] f63e332e7eb36a38dc3a25ed0edace2550266cdadd0a482e0fe152ba8ff57f87