[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 master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyomaytk%2Fruscaml" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yomaytk/ruscaml on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "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-0/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" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fba043cc01679d5a17b8f129f54327b08388e583731468997ea95b2b44d68f6
[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" "5fba043cc01679d5a17b8f129f54327b08388e583731468997ea95b2b44d68f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fba043cc01679d5a17b8f129f54327b08388e583731468997ea95b2b44d68f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fba043cc01679d5a17b8f129f54327b08388e583731468997ea95b2b44d68f6", kill_on_drop: false }`
[INFO] [stdout] 5fba043cc01679d5a17b8f129f54327b08388e583731468997ea95b2b44d68f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1133db9df4df7274eef6ea6b76338598d925fede08106bffb89c6e5df720af09
[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" "1133db9df4df7274eef6ea6b76338598d925fede08106bffb89c6e5df720af09", 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 2.75s
[INFO] running `Command { std: "docker" "inspect" "1133db9df4df7274eef6ea6b76338598d925fede08106bffb89c6e5df720af09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1133db9df4df7274eef6ea6b76338598d925fede08106bffb89c6e5df720af09", kill_on_drop: false }`
[INFO] [stdout] 1133db9df4df7274eef6ea6b76338598d925fede08106bffb89c6e5df720af09