[INFO] cloning repository https://github.com/hgiesel/lambda-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hgiesel/lambda-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgiesel%2Flambda-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgiesel%2Flambda-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed6bbde301bc8db6177450346248b6bb5fdd3a58
[INFO] checking hgiesel/lambda-lang against 5c543b0b8c73c7b72bc8284ced4fb22ead15734d for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgiesel%2Flambda-lang" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hgiesel/lambda-lang
[INFO] finished tweaking git repo https://github.com/hgiesel/lambda-lang
[INFO] tweaked toml for git repo https://github.com/hgiesel/lambda-lang written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hgiesel/lambda-lang on toolchain 5c543b0b8c73c7b72bc8284ced4fb22ead15734d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hgiesel/lambda-lang 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" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 03e74959eb569f1fdfe8bf393800df253633881dfca79bb84800882f40bdc70b
[INFO] running `Command { std: "docker" "start" "03e74959eb569f1fdfe8bf393800df253633881dfca79bb84800882f40bdc70b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03e74959eb569f1fdfe8bf393800df253633881dfca79bb84800882f40bdc70b", 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" "03e74959eb569f1fdfe8bf393800df253633881dfca79bb84800882f40bdc70b" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03e74959eb569f1fdfe8bf393800df253633881dfca79bb84800882f40bdc70b", 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" "03e74959eb569f1fdfe8bf393800df253633881dfca79bb84800882f40bdc70b" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking lambda-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `lex::lex`
[INFO] [stdout]  --> src/lexer/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use lex::lex;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token::Token`
[INFO] [stdout]  --> src/parser/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use token::Token;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/lexer/lex.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn lex(input: &str) -> Option<Token> {
[INFO] [stdout]   |            ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser/parse.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut func = Function::new(
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_all` is never used
[INFO] [stdout]   --> src/lexer/iter.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Counter {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn print_all(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lex` is never used
[INFO] [stdout]  --> src/lexer/lex.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn lex(input: &str) -> Option<Token> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/parser/parameter.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Parameter {
[INFO] [stdout]   | -------------- associated function in this implementation
[INFO] [stdout] 7 |     pub fn new(name: String) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Token` is never used
[INFO] [stdout]  --> src/parser/token.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Token {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lex::lex`
[INFO] [stdout]  --> src/lexer/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use lex::lex;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token::Token`
[INFO] [stdout]  --> src/parser/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use token::Token;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/lexer/lex.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn lex(input: &str) -> Option<Token> {
[INFO] [stdout]   |            ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser/parse.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut func = Function::new(
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_all` is never used
[INFO] [stdout]   --> src/lexer/iter.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Counter {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn print_all(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lex` is never used
[INFO] [stdout]  --> src/lexer/lex.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn lex(input: &str) -> Option<Token> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/parser/parameter.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Parameter {
[INFO] [stdout]   | -------------- associated function in this implementation
[INFO] [stdout] 7 |     pub fn new(name: String) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Token` is never used
[INFO] [stdout]  --> src/parser/token.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Token {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.16s
[INFO] running `Command { std: "docker" "inspect" "03e74959eb569f1fdfe8bf393800df253633881dfca79bb84800882f40bdc70b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03e74959eb569f1fdfe8bf393800df253633881dfca79bb84800882f40bdc70b", kill_on_drop: false }`
[INFO] [stdout] 03e74959eb569f1fdfe8bf393800df253633881dfca79bb84800882f40bdc70b
