[INFO] cloning repository https://github.com/anandijain/cas6.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anandijain/cas6.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanandijain%2Fcas6.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanandijain%2Fcas6.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66b7cdf76af4e18101bb4f3b74282a2906269bf3
[INFO] checking anandijain/cas6.rs against 79c0559184f27f4433a6fbc260b950d06d4a4889 for pr-162233-crater-rollup
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanandijain%2Fcas6.rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/anandijain/cas6.rs
[INFO] finished tweaking git repo https://github.com/anandijain/cas6.rs
[INFO] tweaked toml for git repo https://github.com/anandijain/cas6.rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/anandijain/cas6.rs on toolchain 79c0559184f27f4433a6fbc260b950d06d4a4889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/anandijain/cas6.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded peg-runtime v0.8.2
[INFO] [stderr]   Downloaded peg v0.8.2
[INFO] [stderr]   Downloaded peg-macros v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a6da755d7509095e814f5d4c14e003831060338100fe5f0c878245edd8a12e24
[INFO] running `Command { std: "docker" "start" "a6da755d7509095e814f5d4c14e003831060338100fe5f0c878245edd8a12e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6da755d7509095e814f5d4c14e003831060338100fe5f0c878245edd8a12e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a6da755d7509095e814f5d4c14e003831060338100fe5f0c878245edd8a12e24" "/opt/rustwide/cargo-home/bin/cargo" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6da755d7509095e814f5d4c14e003831060338100fe5f0c878245edd8a12e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a6da755d7509095e814f5d4c14e003831060338100fe5f0c878245edd8a12e24" "/opt/rustwide/cargo-home/bin/cargo" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling peg-runtime v0.8.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling peg-macros v0.8.2
[INFO] [stderr]     Checking peg v0.8.2
[INFO] [stderr]     Checking cas6 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:203:20
[INFO] [stdout]     |
[INFO] [stdout] 203 |         (Expr::Sym(e), Expr::List(ps)) => {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:203:20
[INFO] [stdout]     |
[INFO] [stdout] 203 |         (Expr::Sym(e), Expr::List(ps)) => {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p_rest`
[INFO] [stdout]    --> src/main.rs:259:21
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 let p_rest = &ps[1..];
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_rest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p_rest`
[INFO] [stdout]    --> src/main.rs:259:21
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 let p_rest = &ps[1..];
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_rest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e_rest`
[INFO] [stdout]    --> src/main.rs:262:21
[INFO] [stdout]     |
[INFO] [stdout] 262 |                 let e_rest = &es[1..];
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_e_rest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from_map`
[INFO] [stdout]    --> src/main.rs:300:53
[INFO] [stdout]     |
[INFO] [stdout] 300 | ...                   if let Some(from_map) = named_map.get(p_i) {
[INFO] [stdout]     |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e_rest`
[INFO] [stdout]    --> src/main.rs:262:21
[INFO] [stdout]     |
[INFO] [stdout] 262 |                 let e_rest = &es[1..];
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_e_rest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from_map`
[INFO] [stdout]    --> src/main.rs:333:53
[INFO] [stdout]     |
[INFO] [stdout] 333 | ...                   if let Some(from_map) = named_map.get(p_i) {
[INFO] [stdout]     |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from_map`
[INFO] [stdout]    --> src/main.rs:385:49
[INFO] [stdout]     |
[INFO] [stdout] 385 | ...                   if let Some(from_map) = pos_map.get(&new_pos) {
[INFO] [stdout]     |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from_map`
[INFO] [stdout]    --> src/main.rs:300:53
[INFO] [stdout]     |
[INFO] [stdout] 300 | ...                   if let Some(from_map) = named_map.get(p_i) {
[INFO] [stdout]     |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from_map`
[INFO] [stdout]    --> src/main.rs:418:49
[INFO] [stdout]     |
[INFO] [stdout] 418 | ...                   if let Some(from_map) = pos_map.get(&new_pos) {
[INFO] [stdout]     |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from_map`
[INFO] [stdout]    --> src/main.rs:333:53
[INFO] [stdout]     |
[INFO] [stdout] 333 | ...                   if let Some(from_map) = named_map.get(p_i) {
[INFO] [stdout]     |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from_map`
[INFO] [stdout]    --> src/main.rs:385:49
[INFO] [stdout]     |
[INFO] [stdout] 385 | ...                   if let Some(from_map) = pos_map.get(&new_pos) {
[INFO] [stdout]     |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from_map`
[INFO] [stdout]    --> src/main.rs:418:49
[INFO] [stdout]     |
[INFO] [stdout] 418 | ...                   if let Some(from_map) = pos_map.get(&new_pos) {
[INFO] [stdout]     |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blank`
[INFO] [stdout]    --> src/main.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let blank = list(vec!["blank"]);
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_blank`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/main.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |     let lhs = list(vec!["f", "a", "b"]);
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |     let rhs = list(vec!["f", "blank"]);
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blank`
[INFO] [stdout]    --> src/main.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let blank = list(vec!["blank"]);
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_blank`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/main.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |     let lhs = list(vec!["f", "a", "b"]);
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |     let rhs = list(vec!["f", "blank"]);
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/main.rs:572:13
[INFO] [stdout]     |
[INFO] [stdout] 572 |         let m = my_match(ex, pat.clone(), &pos, &mut pos_map, &mut named_map);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/main.rs:572:13
[INFO] [stdout]     |
[INFO] [stdout] 572 |         let m = my_match(ex, pat.clone(), &pos, &mut pos_map, &mut named_map);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "a6da755d7509095e814f5d4c14e003831060338100fe5f0c878245edd8a12e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6da755d7509095e814f5d4c14e003831060338100fe5f0c878245edd8a12e24", kill_on_drop: false }`
[INFO] [stdout] a6da755d7509095e814f5d4c14e003831060338100fe5f0c878245edd8a12e24
