[INFO] cloning repository https://github.com/mplanchard/combinations [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mplanchard/combinations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplanchard%2Fcombinations"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplanchard%2Fcombinations'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] f5168b543d93ebab3848de11af6ddde30027461d [INFO] testing mplanchard/combinations against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplanchard%2Fcombinations" "/workspace/builds/worker-4/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mplanchard/combinations 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/mplanchard/combinations [INFO] finished tweaking git repo https://github.com/mplanchard/combinations [INFO] tweaked toml for git repo https://github.com/mplanchard/combinations written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/mplanchard/combinations 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] e5cefc23b4baeeb1c2fe55d708389d14a6049904056f57a72d3eadc07679fa42 [INFO] running `"docker" "start" "-a" "e5cefc23b4baeeb1c2fe55d708389d14a6049904056f57a72d3eadc07679fa42"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling num-bigint v0.2.1 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling lazy_static v1.2.0 [INFO] [stderr] Compiling num v0.2.0 [INFO] [stderr] Compiling combinations v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::slice` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::slice; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `slice_one` [INFO] [stderr] --> src/main.rs:123:9 [INFO] [stderr] | [INFO] [stderr] 123 | let slice_one: &[i32] = &[1, 2, 3, 4, 5]; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_slice_one` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `slice_two` [INFO] [stderr] --> src/main.rs:124:9 [INFO] [stderr] | [INFO] [stderr] 124 | let slice_two: &[i32] = &[3, 4]; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_slice_two` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `num_combinations` [INFO] [stderr] --> src/main.rs:19:4 [INFO] [stderr] | [INFO] [stderr] 19 | fn num_combinations(num_items: u64, take: u64) -> BigUint { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print` [INFO] [stderr] --> src/main.rs:62:4 [INFO] [stderr] | [INFO] [stderr] 62 | fn print(thing: T) -> T{ [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 12.08s [INFO] running `"docker" "inspect" "e5cefc23b4baeeb1c2fe55d708389d14a6049904056f57a72d3eadc07679fa42"` [INFO] running `"docker" "rm" "-f" "e5cefc23b4baeeb1c2fe55d708389d14a6049904056f57a72d3eadc07679fa42"` [INFO] [stdout] e5cefc23b4baeeb1c2fe55d708389d14a6049904056f57a72d3eadc07679fa42 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] bf012fb25a85b62c031fe47406ec284281d8abd73a52a89e58ad94058bd31ecc [INFO] running `"docker" "start" "-a" "bf012fb25a85b62c031fe47406ec284281d8abd73a52a89e58ad94058bd31ecc"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling combinations v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::slice` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::slice; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `slice_one` [INFO] [stderr] --> src/main.rs:123:9 [INFO] [stderr] | [INFO] [stderr] 123 | let slice_one: &[i32] = &[1, 2, 3, 4, 5]; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_slice_one` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `slice_two` [INFO] [stderr] --> src/main.rs:124:9 [INFO] [stderr] | [INFO] [stderr] 124 | let slice_two: &[i32] = &[3, 4]; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_slice_two` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `num_combinations` [INFO] [stderr] --> src/main.rs:19:4 [INFO] [stderr] | [INFO] [stderr] 19 | fn num_combinations(num_items: u64, take: u64) -> BigUint { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print` [INFO] [stderr] --> src/main.rs:62:4 [INFO] [stderr] | [INFO] [stderr] 62 | fn print(thing: T) -> T{ [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.84s [INFO] running `"docker" "inspect" "bf012fb25a85b62c031fe47406ec284281d8abd73a52a89e58ad94058bd31ecc"` [INFO] running `"docker" "rm" "-f" "bf012fb25a85b62c031fe47406ec284281d8abd73a52a89e58ad94058bd31ecc"` [INFO] [stdout] bf012fb25a85b62c031fe47406ec284281d8abd73a52a89e58ad94058bd31ecc [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] cde4a1eb1a8cbe3df39134170d0e00ac14a88a8153552cfba10b62e26d6d3604 [INFO] running `"docker" "start" "-a" "cde4a1eb1a8cbe3df39134170d0e00ac14a88a8153552cfba10b62e26d6d3604"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `std::slice` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::slice; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `slice_one` [INFO] [stderr] --> src/main.rs:123:9 [INFO] [stderr] | [INFO] [stderr] 123 | let slice_one: &[i32] = &[1, 2, 3, 4, 5]; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_slice_one` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `slice_two` [INFO] [stderr] --> src/main.rs:124:9 [INFO] [stderr] | [INFO] [stderr] 124 | let slice_two: &[i32] = &[3, 4]; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_slice_two` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `num_combinations` [INFO] [stderr] --> src/main.rs:19:4 [INFO] [stderr] | [INFO] [stderr] 19 | fn num_combinations(num_items: u64, take: u64) -> BigUint { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print` [INFO] [stderr] --> src/main.rs:62:4 [INFO] [stderr] | [INFO] [stderr] 62 | fn print(thing: T) -> T{ [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/combinations-431f24a2bbc7f2ce [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" "cde4a1eb1a8cbe3df39134170d0e00ac14a88a8153552cfba10b62e26d6d3604"` [INFO] running `"docker" "rm" "-f" "cde4a1eb1a8cbe3df39134170d0e00ac14a88a8153552cfba10b62e26d6d3604"` [INFO] [stdout] cde4a1eb1a8cbe3df39134170d0e00ac14a88a8153552cfba10b62e26d6d3604