[INFO] updating cached repository https://github.com/cyndis/pn
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 03f73bb970b0587eecdbb20e075506018e5abef9
[INFO] checking cyndis/pn against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcyndis%2Fpn" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cyndis/pn on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cyndis/pn
[INFO] finished tweaking git repo https://github.com/cyndis/pn
[INFO] tweaked toml for git repo https://github.com/cyndis/pn written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/cyndis/pn already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8cb2191f7205759d6958c892fe3c2c383ac34ac77c7a0853b69c36914b994423
[INFO] running `"docker" "start" "-a" "8cb2191f7205759d6958c892fe3c2c383ac34ac77c7a0853b69c36914b994423"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking da v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `nodes`
[INFO] [stderr]    --> src/main.rs:182:9
[INFO] [stderr]     |
[INFO] [stderr] 182 |     let nodes = vec![
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_nodes`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:30:72
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let mut in_datas = self.nodes.iter().map(|n| (0..n.len()).map(|x| None).collect::<Vec<_>>())
[INFO] [stderr]    |                                                                        ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:105:31
[INFO] [stderr]     |
[INFO] [stderr] 105 |             UrB(k, ref m, ref x) if !m.is_empty() && k % 2 == 0 =>
[INFO] [stderr]     |                               ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:107:16
[INFO] [stderr]     |
[INFO] [stderr] 107 |             Mr(i) => pr.map(|_| Matched).collect(),
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:161:27
[INFO] [stderr]     |
[INFO] [stderr] 161 |     fn init(ports: usize, i: &()) -> (BmmState, BmmState) {
[INFO] [stderr]     |                           ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_output`
[INFO] [stderr]   --> src/main.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn is_output(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_matched`
[INFO] [stderr]   --> src/main.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn is_matched(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nodes`
[INFO] [stderr]    --> src/main.rs:182:9
[INFO] [stderr]     |
[INFO] [stderr] 182 |     let nodes = vec![
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_nodes`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:30:72
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let mut in_datas = self.nodes.iter().map(|n| (0..n.len()).map(|x| None).collect::<Vec<_>>())
[INFO] [stderr]    |                                                                        ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:105:31
[INFO] [stderr]     |
[INFO] [stderr] 105 |             UrB(k, ref m, ref x) if !m.is_empty() && k % 2 == 0 =>
[INFO] [stderr]     |                               ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:107:16
[INFO] [stderr]     |
[INFO] [stderr] 107 |             Mr(i) => pr.map(|_| Matched).collect(),
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:161:27
[INFO] [stderr]     |
[INFO] [stderr] 161 |     fn init(ports: usize, i: &()) -> (BmmState, BmmState) {
[INFO] [stderr]     |                           ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_output`
[INFO] [stderr]   --> src/main.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn is_output(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_matched`
[INFO] [stderr]   --> src/main.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn is_matched(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `"docker" "inspect" "8cb2191f7205759d6958c892fe3c2c383ac34ac77c7a0853b69c36914b994423"`
[INFO] running `"docker" "rm" "-f" "8cb2191f7205759d6958c892fe3c2c383ac34ac77c7a0853b69c36914b994423"`
[INFO] [stdout] 8cb2191f7205759d6958c892fe3c2c383ac34ac77c7a0853b69c36914b994423