[INFO] fetching crate prev-iter 0.1.2... [INFO] testing prev-iter-0.1.2 against beta-2020-06-03 for beta-1.45-1 [INFO] extracting crate prev-iter 0.1.2 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate prev-iter 0.1.2 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 crates.io crate prev-iter 0.1.2 [INFO] finished tweaking crates.io crate prev-iter 0.1.2 [INFO] tweaked toml for crates.io crate prev-iter 0.1.2 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 9739690b842e92b8690b132fcf8eff87bebcf5f16230a4b7b6eeb7e0be53472e [INFO] running `"docker" "start" "-a" "9739690b842e92b8690b132fcf8eff87bebcf5f16230a4b7b6eeb7e0be53472e"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling prev-iter v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.18s [INFO] running `"docker" "inspect" "9739690b842e92b8690b132fcf8eff87bebcf5f16230a4b7b6eeb7e0be53472e"` [INFO] running `"docker" "rm" "-f" "9739690b842e92b8690b132fcf8eff87bebcf5f16230a4b7b6eeb7e0be53472e"` [INFO] [stdout] 9739690b842e92b8690b132fcf8eff87bebcf5f16230a4b7b6eeb7e0be53472e [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] ce07fb6b7034d0972c5dea4256af974cc31f31906fd67a1d33f1410e05065471 [INFO] running `"docker" "start" "-a" "ce07fb6b7034d0972c5dea4256af974cc31f31906fd67a1d33f1410e05065471"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling prev-iter v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.82s [INFO] running `"docker" "inspect" "ce07fb6b7034d0972c5dea4256af974cc31f31906fd67a1d33f1410e05065471"` [INFO] running `"docker" "rm" "-f" "ce07fb6b7034d0972c5dea4256af974cc31f31906fd67a1d33f1410e05065471"` [INFO] [stdout] ce07fb6b7034d0972c5dea4256af974cc31f31906fd67a1d33f1410e05065471 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] de3196b04f4b2c578d7df576e51832b38a98aa3d95e668d7a3f9803c444b641e [INFO] running `"docker" "start" "-a" "de3196b04f4b2c578d7df576e51832b38a98aa3d95e668d7a3f9803c444b641e"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/prev_iter-eaae1985816b14b3 [INFO] [stdout] [INFO] [stderr] Doc-tests prev-iter [INFO] [stdout] running 4 tests [INFO] [stdout] test tests::test_next ... ok [INFO] [stdout] test tests::test_prev_peek ... ok [INFO] [stdout] test tests::test_prev ... ok [INFO] [stdout] test tests::test_peek ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test src/lib.rs - PrevPeekable::peek (line 76) ... ok [INFO] [stdout] test src/lib.rs - PrevPeekable::new (line 41) ... ok [INFO] [stdout] test src/lib.rs - PrevPeekable::prev_peek (line 148) ... ok [INFO] [stdout] test src/lib.rs - PrevPeekable::prev (line 110) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "de3196b04f4b2c578d7df576e51832b38a98aa3d95e668d7a3f9803c444b641e"` [INFO] running `"docker" "rm" "-f" "de3196b04f4b2c578d7df576e51832b38a98aa3d95e668d7a3f9803c444b641e"` [INFO] [stdout] de3196b04f4b2c578d7df576e51832b38a98aa3d95e668d7a3f9803c444b641e