[INFO] updating cached repository https://github.com/PabloReszczynski/Clank
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] 68edacc440fe529d97afb3c6bd2bd676b30ac53b
[INFO] checking PabloReszczynski/Clank against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FPabloReszczynski%2FClank" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PabloReszczynski/Clank on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/PabloReszczynski/Clank
[INFO] finished tweaking git repo https://github.com/PabloReszczynski/Clank
[INFO] tweaked toml for git repo https://github.com/PabloReszczynski/Clank written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/PabloReszczynski/Clank already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9fe237572f89ef22c0b3c24c451da405a1a86743132051465c1da0f3637f0f56
[INFO] running `"docker" "start" "-a" "9fe237572f89ef22c0b3c24c451da405a1a86743132051465c1da0f3637f0f56"`
[INFO] [stderr]     Checking clank v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `src`
[INFO] [stderr]   --> src/parser.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let src = String::from("(+ 1 2)");
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_src`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t1`
[INFO] [stderr]   --> src/parser.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let t1 = String::from("+");
[INFO] [stderr]    |         ^^ help: consider prefixing with an underscore: `_t1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t2`
[INFO] [stderr]   --> src/parser.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let t2 = String::from("1");
[INFO] [stderr]    |         ^^ help: consider prefixing with an underscore: `_t2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t3`
[INFO] [stderr]   --> src/parser.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let t3 = String::from("2");
[INFO] [stderr]    |         ^^ help: consider prefixing with an underscore: `_t3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t4`
[INFO] [stderr]   --> src/parser.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let t4 = String::from("(");
[INFO] [stderr]    |         ^^ help: consider prefixing with an underscore: `_t4`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t5`
[INFO] [stderr]   --> src/parser.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let t5 = String::from(")");
[INFO] [stderr]    |         ^^ help: consider prefixing with an underscore: `_t5`
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `LispVal`
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum LispVal<'a> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `show_val`
[INFO] [stderr]   --> src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn show_val(val: &LispVal) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `show_list`
[INFO] [stderr]   --> src/main.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn show_list(contents: &LinkedList<&LispVal>) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "9fe237572f89ef22c0b3c24c451da405a1a86743132051465c1da0f3637f0f56"`
[INFO] running `"docker" "rm" "-f" "9fe237572f89ef22c0b3c24c451da405a1a86743132051465c1da0f3637f0f56"`
[INFO] [stdout] 9fe237572f89ef22c0b3c24c451da405a1a86743132051465c1da0f3637f0f56