[INFO] cloning repository https://github.com/thepunkprogrammer/hello-world-cargo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thepunkprogrammer/hello-world-cargo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthepunkprogrammer%2Fhello-world-cargo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthepunkprogrammer%2Fhello-world-cargo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d20fb31edfb0075d1ab521b281e247d3f32342c7
[INFO] checking thepunkprogrammer/hello-world-cargo against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthepunkprogrammer%2Fhello-world-cargo" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thepunkprogrammer/hello-world-cargo on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thepunkprogrammer/hello-world-cargo
[INFO] finished tweaking git repo https://github.com/thepunkprogrammer/hello-world-cargo
[INFO] tweaked toml for git repo https://github.com/thepunkprogrammer/hello-world-cargo written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/thepunkprogrammer/hello-world-cargo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19b0491bc78927aca5ee47b268618c0ba3cc0c59f67c944e42aea6b4b26d6cb0
[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" "19b0491bc78927aca5ee47b268618c0ba3cc0c59f67c944e42aea6b4b26d6cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19b0491bc78927aca5ee47b268618c0ba3cc0c59f67c944e42aea6b4b26d6cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19b0491bc78927aca5ee47b268618c0ba3cc0c59f67c944e42aea6b4b26d6cb0", kill_on_drop: false }`
[INFO] [stdout] 19b0491bc78927aca5ee47b268618c0ba3cc0c59f67c944e42aea6b4b26d6cb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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] 4093593b036c3f78938fc9d107a8b1b7177949e360679b962bff86fe0cde919e
[INFO] running `Command { std: "docker" "start" "-a" "4093593b036c3f78938fc9d107a8b1b7177949e360679b962bff86fe0cde919e", kill_on_drop: false }`
[INFO] [stderr]     Checking hello-world-cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     down,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `left` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     left,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `right` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     right
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case: `Right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     down,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `left` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     left,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `right` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     right
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case: `Right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `down`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     down,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `left`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     left,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `right`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     right
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `down`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     down,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `left`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     left,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `right`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     right
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "4093593b036c3f78938fc9d107a8b1b7177949e360679b962bff86fe0cde919e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4093593b036c3f78938fc9d107a8b1b7177949e360679b962bff86fe0cde919e", kill_on_drop: false }`
[INFO] [stdout] 4093593b036c3f78938fc9d107a8b1b7177949e360679b962bff86fe0cde919e