[INFO] fetching crate mark_last 0.9.2...
[INFO] testing mark_last-0.9.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate mark_last 0.9.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mark_last 0.9.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mark_last 0.9.2
[INFO] finished tweaking crates.io crate mark_last 0.9.2
[INFO] tweaked toml for crates.io crate mark_last 0.9.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44fe28c9e11964bc1203cbb489f6a26762c5fef6d479fda77468d210c8650986
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "44fe28c9e11964bc1203cbb489f6a26762c5fef6d479fda77468d210c8650986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44fe28c9e11964bc1203cbb489f6a26762c5fef6d479fda77468d210c8650986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44fe28c9e11964bc1203cbb489f6a26762c5fef6d479fda77468d210c8650986", kill_on_drop: false }`
[INFO] [stdout] 44fe28c9e11964bc1203cbb489f6a26762c5fef6d479fda77468d210c8650986
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5ac19e201d40b1711d95be926a8ea3a367ba60173b44669bfa21c69d83239dd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b5ac19e201d40b1711d95be926a8ea3a367ba60173b44669bfa21c69d83239dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling mark_last v0.9.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "b5ac19e201d40b1711d95be926a8ea3a367ba60173b44669bfa21c69d83239dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5ac19e201d40b1711d95be926a8ea3a367ba60173b44669bfa21c69d83239dd", kill_on_drop: false }`
[INFO] [stdout] b5ac19e201d40b1711d95be926a8ea3a367ba60173b44669bfa21c69d83239dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dea79c032efac7c98eddf21a1f1d92702af529e2bb5ac8908dd9145de76d53dd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dea79c032efac7c98eddf21a1f1d92702af529e2bb5ac8908dd9145de76d53dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling mark_last v0.9.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "dea79c032efac7c98eddf21a1f1d92702af529e2bb5ac8908dd9145de76d53dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dea79c032efac7c98eddf21a1f1d92702af529e2bb5ac8908dd9145de76d53dd", kill_on_drop: false }`
[INFO] [stdout] dea79c032efac7c98eddf21a1f1d92702af529e2bb5ac8908dd9145de76d53dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d9bc221f158f9b30cdef196cd02b7fadd78a94968d9e265e2dc92e70b16df441
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d9bc221f158f9b30cdef196cd02b7fadd78a94968d9e265e2dc92e70b16df441", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mark_last-417f640d26f6c5fc)
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::marks_last ... ok
[INFO] [stdout] test test::marks_last_length_one ... ok
[INFO] [stdout] test test::empty_collection ... ok
[INFO] [stderr]    Doc-tests mark_last
[INFO] [stdout] test test::marks_nothing_infinite ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - MarkLastIterator::mark_last (line 40) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.71s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d9bc221f158f9b30cdef196cd02b7fadd78a94968d9e265e2dc92e70b16df441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9bc221f158f9b30cdef196cd02b7fadd78a94968d9e265e2dc92e70b16df441", kill_on_drop: false }`
[INFO] [stdout] d9bc221f158f9b30cdef196cd02b7fadd78a94968d9e265e2dc92e70b16df441