[INFO] updating cached repository https://github.com/4lex1v/linked_list_in_rust
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2e55d911ee6accf67064a5b3170f25596727510
[INFO] testing 4lex1v/linked_list_in_rust against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4lex1v%2Flinked_list_in_rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/4lex1v/linked_list_in_rust on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/4lex1v/linked_list_in_rust
[INFO] finished tweaking git repo https://github.com/4lex1v/linked_list_in_rust
[INFO] tweaked toml for git repo https://github.com/4lex1v/linked_list_in_rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/4lex1v/linked_list_in_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f22101b6e1b50463106fd3ef0d2da9963fd2feecae32cd7e2e405e25f7b15dab
[INFO] running `Command { std: "docker" "start" "-a" "f22101b6e1b50463106fd3ef0d2da9963fd2feecae32cd7e2e405e25f7b15dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f22101b6e1b50463106fd3ef0d2da9963fd2feecae32cd7e2e405e25f7b15dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f22101b6e1b50463106fd3ef0d2da9963fd2feecae32cd7e2e405e25f7b15dab", kill_on_drop: false }`
[INFO] [stdout] f22101b6e1b50463106fd3ef0d2da9963fd2feecae32cd7e2e405e25f7b15dab
[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" "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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54f03adb8a5e7605be9876ea209e32089d78e9453e3c8c7c864aa84dfbf7e532
[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" "54f03adb8a5e7605be9876ea209e32089d78e9453e3c8c7c864aa84dfbf7e532", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty_lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "54f03adb8a5e7605be9876ea209e32089d78e9453e3c8c7c864aa84dfbf7e532", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f03adb8a5e7605be9876ea209e32089d78e9453e3c8c7c864aa84dfbf7e532", kill_on_drop: false }`
[INFO] [stdout] 54f03adb8a5e7605be9876ea209e32089d78e9453e3c8c7c864aa84dfbf7e532
[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" "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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 58385819d013f1e9cd75050a4a1843dee5409fee8cb0efaa2927e1a914004e0f
[INFO] running `Command { std: "docker" "start" "-a" "58385819d013f1e9cd75050a4a1843dee5409fee8cb0efaa2927e1a914004e0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty_lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "58385819d013f1e9cd75050a4a1843dee5409fee8cb0efaa2927e1a914004e0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58385819d013f1e9cd75050a4a1843dee5409fee8cb0efaa2927e1a914004e0f", kill_on_drop: false }`
[INFO] [stdout] 58385819d013f1e9cd75050a4a1843dee5409fee8cb0efaa2927e1a914004e0f
[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" "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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7587aa1a9bc7558b148cec52291028ebe67520d498d1a8650d5a17f8bb0a44cb
[INFO] running `Command { std: "docker" "start" "-a" "7587aa1a9bc7558b148cec52291028ebe67520d498d1a8650d5a17f8bb0a44cb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rusty_lists-6ae78c877e7b37af
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test first::test::basics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7587aa1a9bc7558b148cec52291028ebe67520d498d1a8650d5a17f8bb0a44cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7587aa1a9bc7558b148cec52291028ebe67520d498d1a8650d5a17f8bb0a44cb", kill_on_drop: false }`
[INFO] [stdout] 7587aa1a9bc7558b148cec52291028ebe67520d498d1a8650d5a17f8bb0a44cb