[INFO] cloning repository https://github.com/krishnakumar4a4/rust-epmd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krishnakumar4a4/rust-epmd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrishnakumar4a4%2Frust-epmd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrishnakumar4a4%2Frust-epmd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58dbcbf3bf647f89b2da7ee1bb009bbe23658c3d
[INFO] checking krishnakumar4a4/rust-epmd against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrishnakumar4a4%2Frust-epmd" "/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/krishnakumar4a4/rust-epmd on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/krishnakumar4a4/rust-epmd
[INFO] finished tweaking git repo https://github.com/krishnakumar4a4/rust-epmd
[INFO] tweaked toml for git repo https://github.com/krishnakumar4a4/rust-epmd written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/krishnakumar4a4/rust-epmd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ffc73e31fce84319233ffca3fbf47085b1f46c02e50438beff506208e7cf87a
[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" "3ffc73e31fce84319233ffca3fbf47085b1f46c02e50438beff506208e7cf87a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ffc73e31fce84319233ffca3fbf47085b1f46c02e50438beff506208e7cf87a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ffc73e31fce84319233ffca3fbf47085b1f46c02e50438beff506208e7cf87a", kill_on_drop: false }`
[INFO] [stdout] 3ffc73e31fce84319233ffca3fbf47085b1f46c02e50438beff506208e7cf87a
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da8b9199e6b658c6c14d72e6f36575dc791a315f179af84ef8833e8a7ecc4ee0
[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" "da8b9199e6b658c6c14d72e6f36575dc791a315f179af84ef8833e8a7ecc4ee0", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-empd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `r_array`
[INFO] [stdout]   --> src/main.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut r_array: [u8; 30] = [0; 30];
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_r_array`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut r_array: [u8; 30] = [0; 30];
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_array`
[INFO] [stdout]   --> src/main.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut r_array: [u8; 30] = [0; 30];
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_r_array`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ask_port`
[INFO] [stdout]   --> src/main.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn ask_port(stream: &mut TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bufVec` should have a snake case name
[INFO] [stdout]   --> src/main.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut bufVec: [u8; 22] = [0; 22];
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `buf_vec`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut r_array: [u8; 30] = [0; 30];
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ask_port`
[INFO] [stdout]   --> src/main.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn ask_port(stream: &mut TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bufVec` should have a snake case name
[INFO] [stdout]   --> src/main.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut bufVec: [u8; 22] = [0; 22];
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `buf_vec`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "da8b9199e6b658c6c14d72e6f36575dc791a315f179af84ef8833e8a7ecc4ee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da8b9199e6b658c6c14d72e6f36575dc791a315f179af84ef8833e8a7ecc4ee0", kill_on_drop: false }`
[INFO] [stdout] da8b9199e6b658c6c14d72e6f36575dc791a315f179af84ef8833e8a7ecc4ee0