[INFO] cloning repository https://github.com/green4free/linked_list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/green4free/linked_list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreen4free%2Flinked_list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreen4free%2Flinked_list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c8367716240df18093fecf491c8fd9cd1dacfd00
[INFO] checking green4free/linked_list against master#339e19697a39a78f4d669c217b7d21109215de41 for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreen4free%2Flinked_list" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/green4free/linked_list on toolchain 339e19697a39a78f4d669c217b7d21109215de41
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/green4free/linked_list
[INFO] finished tweaking git repo https://github.com/green4free/linked_list
[INFO] tweaked toml for git repo https://github.com/green4free/linked_list written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/green4free/linked_list already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "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] f67f7b4830150eb87bc640cbe90a6593d4c44d015e61caa787a45713df44da93
[INFO] running `Command { std: "docker" "start" "-a" "f67f7b4830150eb87bc640cbe90a6593d4c44d015e61caa787a45713df44da93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f67f7b4830150eb87bc640cbe90a6593d4c44d015e61caa787a45713df44da93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f67f7b4830150eb87bc640cbe90a6593d4c44d015e61caa787a45713df44da93", kill_on_drop: false }`
[INFO] [stdout] f67f7b4830150eb87bc640cbe90a6593d4c44d015e61caa787a45713df44da93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "check" "--frozen" "--all" "--all-targets" "--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] 41bab28ddcf3bd8fcdf82411c9990a26ab2dd2ce0d6afb4e4f42547f737f699e
[INFO] running `Command { std: "docker" "start" "-a" "41bab28ddcf3bd8fcdf82411c9990a26ab2dd2ce0d6afb4e4f42547f737f699e", kill_on_drop: false }`
[INFO] [stderr]     Checking linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "41bab28ddcf3bd8fcdf82411c9990a26ab2dd2ce0d6afb4e4f42547f737f699e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41bab28ddcf3bd8fcdf82411c9990a26ab2dd2ce0d6afb4e4f42547f737f699e", kill_on_drop: false }`
[INFO] [stdout] 41bab28ddcf3bd8fcdf82411c9990a26ab2dd2ce0d6afb4e4f42547f737f699e