[INFO] cloning 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" "clone" "--bare" "https://github.com/4lex1v/linked_list_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4lex1v%2Flinked_list_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4lex1v%2Flinked_list_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2e55d911ee6accf67064a5b3170f25596727510
[INFO] checking 4lex1v/linked_list_in_rust against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4lex1v%2Flinked_list_in_rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/4lex1v/linked_list_in_rust on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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-8/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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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] dec80e2d32c80a54f6dbe0e2aea29b56126a50e4dd984bfccfb7deb0d171f63a
[INFO] running `Command { std: "docker" "start" "-a" "dec80e2d32c80a54f6dbe0e2aea29b56126a50e4dd984bfccfb7deb0d171f63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dec80e2d32c80a54f6dbe0e2aea29b56126a50e4dd984bfccfb7deb0d171f63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dec80e2d32c80a54f6dbe0e2aea29b56126a50e4dd984bfccfb7deb0d171f63a", kill_on_drop: false }`
[INFO] [stdout] dec80e2d32c80a54f6dbe0e2aea29b56126a50e4dd984bfccfb7deb0d171f63a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ef00f1900ec272527b3169afec152d789159d5b0fba28b19fcb8ea928f9effd
[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" "8ef00f1900ec272527b3169afec152d789159d5b0fba28b19fcb8ea928f9effd", kill_on_drop: false }`
[INFO] [stderr]     Checking rusty_lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "8ef00f1900ec272527b3169afec152d789159d5b0fba28b19fcb8ea928f9effd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ef00f1900ec272527b3169afec152d789159d5b0fba28b19fcb8ea928f9effd", kill_on_drop: false }`
[INFO] [stdout] 8ef00f1900ec272527b3169afec152d789159d5b0fba28b19fcb8ea928f9effd