[INFO] updating cached repository https://github.com/jit-y/introduction-to-algorithms-rs
[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] 647f9fbee9ca3cca93a95e98c375c6ea7bc2992e
[INFO] testing jit-y/introduction-to-algorithms-rs against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjit-y%2Fintroduction-to-algorithms-rs" "/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/jit-y/introduction-to-algorithms-rs 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/jit-y/introduction-to-algorithms-rs
[INFO] finished tweaking git repo https://github.com/jit-y/introduction-to-algorithms-rs
[INFO] tweaked toml for git repo https://github.com/jit-y/introduction-to-algorithms-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jit-y/introduction-to-algorithms-rs 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-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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aa20eb5fa28e4affb15e79a4a675fddd1f32156456cfc386d3c1a5fd5e4efeaa
[INFO] running `"docker" "start" "-a" "aa20eb5fa28e4affb15e79a4a675fddd1f32156456cfc386d3c1a5fd5e4efeaa"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling introduction-to-algorithms-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `insertion`
[INFO] [stderr]  --> src/sorts.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn insertion(a: &mut Vec<i32>) {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "aa20eb5fa28e4affb15e79a4a675fddd1f32156456cfc386d3c1a5fd5e4efeaa"`
[INFO] running `"docker" "rm" "-f" "aa20eb5fa28e4affb15e79a4a675fddd1f32156456cfc386d3c1a5fd5e4efeaa"`
[INFO] [stdout] aa20eb5fa28e4affb15e79a4a675fddd1f32156456cfc386d3c1a5fd5e4efeaa
[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] f4dbdaec23d962f506fc83fef43a0bdb23739db39d011bd0ad5ce63199d9a897
[INFO] running `"docker" "start" "-a" "f4dbdaec23d962f506fc83fef43a0bdb23739db39d011bd0ad5ce63199d9a897"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling introduction-to-algorithms-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `insertion`
[INFO] [stderr]  --> src/sorts.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn insertion(a: &mut Vec<i32>) {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "f4dbdaec23d962f506fc83fef43a0bdb23739db39d011bd0ad5ce63199d9a897"`
[INFO] running `"docker" "rm" "-f" "f4dbdaec23d962f506fc83fef43a0bdb23739db39d011bd0ad5ce63199d9a897"`
[INFO] [stdout] f4dbdaec23d962f506fc83fef43a0bdb23739db39d011bd0ad5ce63199d9a897
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c1d4c69c85810d2e38ae702143f5ed4c9571df5ea65a8db30da7051063a43fa8
[INFO] running `"docker" "start" "-a" "c1d4c69c85810d2e38ae702143f5ed4c9571df5ea65a8db30da7051063a43fa8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: function is never used: `insertion`
[INFO] [stderr]  --> src/sorts.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn insertion(a: &mut Vec<i32>) {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/introduction_to_algorithms_rs-9fadcf18b613ea59
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test sorts::test::test_sort ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/introduction_to_algorithms_rs-66b3e6dd661afd85
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests introduction-to-algorithms-rs
[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 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" "c1d4c69c85810d2e38ae702143f5ed4c9571df5ea65a8db30da7051063a43fa8"`
[INFO] running `"docker" "rm" "-f" "c1d4c69c85810d2e38ae702143f5ed4c9571df5ea65a8db30da7051063a43fa8"`
[INFO] [stdout] c1d4c69c85810d2e38ae702143f5ed4c9571df5ea65a8db30da7051063a43fa8