[INFO] cloning repository https://github.com/yomaytk/ruscaml
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yomaytk/ruscaml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyomaytk%2Fruscaml", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyomaytk%2Fruscaml'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22f2edc50db6cc54e7088da4a079490f2c0d46a8
[INFO] checking yomaytk/ruscaml against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyomaytk%2Fruscaml" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yomaytk/ruscaml on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yomaytk/ruscaml
[INFO] finished tweaking git repo https://github.com/yomaytk/ruscaml
[INFO] tweaked toml for git repo https://github.com/yomaytk/ruscaml written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/yomaytk/ruscaml already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2c0e07f1d9a8922cd2b4fa235eb415e6a8c4ceb477eb3113032fff0cf7cf1d5
[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" "c2c0e07f1d9a8922cd2b4fa235eb415e6a8c4ceb477eb3113032fff0cf7cf1d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2c0e07f1d9a8922cd2b4fa235eb415e6a8c4ceb477eb3113032fff0cf7cf1d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2c0e07f1d9a8922cd2b4fa235eb415e6a8c4ceb477eb3113032fff0cf7cf1d5", kill_on_drop: false }`
[INFO] [stdout] c2c0e07f1d9a8922cd2b4fa235eb415e6a8c4ceb477eb3113032fff0cf7cf1d5
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "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] fc41228f3fb4c0b5a0a11a1fc7390372bd000bce3132fe0e5ff01c2f4610fedc
[INFO] running `Command { std: "docker" "start" "-a" "fc41228f3fb4c0b5a0a11a1fc7390372bd000bce3132fe0e5ff01c2f4610fedc", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking ruscaml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/lib.rs:94:110
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     None => { message_error(&format!(" {:?} is not defined. ", key)); panic!("{:?}", &self); return None; }
[INFO] [stdout]    |                                                                                       ---------------------- ^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |                                                                                       |
[INFO] [stdout]    |                                                                                       any code following this expression is unreachable
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/lib.rs:94:110
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     None => { message_error(&format!(" {:?} is not defined. ", key)); panic!("{:?}", &self); return None; }
[INFO] [stdout]    |                                                                                       ---------------------- ^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |                                                                                       |
[INFO] [stdout]    |                                                                                       any code following this expression is unreachable
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "fc41228f3fb4c0b5a0a11a1fc7390372bd000bce3132fe0e5ff01c2f4610fedc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc41228f3fb4c0b5a0a11a1fc7390372bd000bce3132fe0e5ff01c2f4610fedc", kill_on_drop: false }`
[INFO] [stdout] fc41228f3fb4c0b5a0a11a1fc7390372bd000bce3132fe0e5ff01c2f4610fedc