[INFO] cloning repository https://github.com/swell-lang/swell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swell-lang/swell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswell-lang%2Fswell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswell-lang%2Fswell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b43e79e537b72c44d934d3b10770ae0f0ae35fef
[INFO] checking swell-lang/swell against try#3ec2a775459d36c7d90654e47c56ff7bb0d542ab for pr-139087
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswell-lang%2Fswell" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/swell-lang/swell on toolchain 3ec2a775459d36c7d90654e47c56ff7bb0d542ab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/swell-lang/swell
[INFO] finished tweaking git repo https://github.com/swell-lang/swell
[INFO] tweaked toml for git repo https://github.com/swell-lang/swell written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/swell-lang/swell 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" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking swell-lang/swell against try#3ec2a775459d36c7d90654e47c56ff7bb0d542ab for pr-139087
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswell-lang%2Fswell" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/swell-lang/swell on toolchain 3ec2a775459d36c7d90654e47c56ff7bb0d542ab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/swell-lang/swell
[INFO] finished tweaking git repo https://github.com/swell-lang/swell
[INFO] tweaked toml for git repo https://github.com/swell-lang/swell written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/swell-lang/swell 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" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "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 unicode-ident v1.0.12
[INFO] [stderr]   Downloaded logos-derive v0.14.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.84
[INFO] [stderr]   Downloaded beef v0.5.2
[INFO] [stderr]   Downloaded quote v1.0.36
[INFO] [stderr]   Downloaded log v0.4.21
[INFO] [stderr]   Downloaded logos-codegen v0.14.0
[INFO] [stderr]   Downloaded syn v2.0.66
[INFO] [stderr]   Downloaded regex-syntax v0.8.3
[INFO] [stderr]   Downloaded logos v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84ce0c1a0ad49f05e9fa7c8794f4232691a298ad8f3b1b4db168eb31737566ee
[INFO] running `Command { std: "docker" "start" "-a" "84ce0c1a0ad49f05e9fa7c8794f4232691a298ad8f3b1b4db168eb31737566ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84ce0c1a0ad49f05e9fa7c8794f4232691a298ad8f3b1b4db168eb31737566ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84ce0c1a0ad49f05e9fa7c8794f4232691a298ad8f3b1b4db168eb31737566ee", kill_on_drop: false }`
[INFO] [stdout] 84ce0c1a0ad49f05e9fa7c8794f4232691a298ad8f3b1b4db168eb31737566ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edd18efdc9b0f9d66474b2830ca2e97866b9ecd581bd55d6ddc8d0d0d06b50d6
[INFO] running `Command { std: "docker" "start" "-a" "edd18efdc9b0f9d66474b2830ca2e97866b9ecd581bd55d6ddc8d0d0d06b50d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.84
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling swell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling logos-codegen v0.14.0
[INFO] [stderr]    Compiling logos-derive v0.14.0
[INFO] [stderr]     Checking logos v0.14.0
[INFO] [stdout] warning: unused import: `Deref`
[INFO] [stdout]  --> src/lexer/mod.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::{Deref, Range};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Parser`, `lex`, and `property`
[INFO] [stdout]    --> src/lexer/mod.rs:523:24
[INFO] [stdout]     |
[INFO] [stdout] 523 |     use crate::lexer::{lex, Parser, property};
[INFO] [stdout]     |                        ^^^  ^^^^^^  ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]    --> src/lexer/mod.rs:522:1
[INFO] [stdout]     |
[INFO] [stdout] 522 | mod property_tests {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deref`
[INFO] [stdout]  --> src/lexer/mod.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::{Deref, Range};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/lexer/mod.rs:200:21
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 Err(err) => {
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[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/lexer/mod.rs:380:13
[INFO] [stdout]     |
[INFO] [stdout] 380 |         let mut count = 0;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lexer/mod.rs:399:13
[INFO] [stdout]     |
[INFO] [stdout] 399 |         let mut count = 0;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cst`
[INFO] [stdout]    --> src/lexer/mod.rs:534:13
[INFO] [stdout]     |
[INFO] [stdout] 534 |         let cst = property(&mut p);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_cst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]  --> src/parser/parser.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(tokens: Vec<Token<'a>>) {
[INFO] [stdout]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `nth_whitespace` and `at_whitespace` are never used
[INFO] [stdout]    --> src/lexer/mod.rs:393:8
[INFO] [stdout]     |
[INFO] [stdout] 294 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 393 |     fn nth_whitespace(&self, lookahead: usize) -> TokenKind {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 414 |     fn at_whitespace(&self, kind: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/lexer/mod.rs:200:21
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 Err(err) => {
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[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/lexer/mod.rs:380:13
[INFO] [stdout]     |
[INFO] [stdout] 380 |         let mut count = 0;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lexer/mod.rs:399:13
[INFO] [stdout]     |
[INFO] [stdout] 399 |         let mut count = 0;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]  --> src/parser/parser.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(tokens: Vec<Token<'a>>) {
[INFO] [stdout]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `nth_whitespace` and `at_whitespace` are never used
[INFO] [stdout]    --> src/lexer/mod.rs:393:8
[INFO] [stdout]     |
[INFO] [stdout] 294 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 393 |     fn nth_whitespace(&self, lookahead: usize) -> TokenKind {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 414 |     fn at_whitespace(&self, kind: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source_file`
[INFO] [stdout]  --> src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let source_file = "example.txt";
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_source_file`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexer`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let lexer = swell::lexer::Lexer::new(input);
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_lexer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source_file`
[INFO] [stdout]  --> src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let source_file = "example.txt";
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_source_file`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexer`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let lexer = swell::lexer::Lexer::new(input);
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_lexer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `testLexer` should have a snake case name
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let testLexer = TokenKind::lexer(input);
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `test_lexer`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `testLexer` should have a snake case name
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let testLexer = TokenKind::lexer(input);
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `test_lexer`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.33s
[INFO] running `Command { std: "docker" "inspect" "edd18efdc9b0f9d66474b2830ca2e97866b9ecd581bd55d6ddc8d0d0d06b50d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edd18efdc9b0f9d66474b2830ca2e97866b9ecd581bd55d6ddc8d0d0d06b50d6", kill_on_drop: false }`
[INFO] [stdout] edd18efdc9b0f9d66474b2830ca2e97866b9ecd581bd55d6ddc8d0d0d06b50d6