[INFO] cloning repository https://github.com/walac/cool-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/walac/cool-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwalac%2Fcool-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwalac%2Fcool-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08f49bc7a724e521d01fe1a2eaecd917ab62d1cf
[INFO] checking walac/cool-rs against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwalac%2Fcool-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/walac/cool-rs
[INFO] finished tweaking git repo https://github.com/walac/cool-rs
[INFO] tweaked toml for git repo https://github.com/walac/cool-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/walac/cool-rs on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/walac/cool-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded encoding8 v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b57dded82ea317a293408ce29b67f6d97b9f31debf5dece546b986c92ee0b44e
[INFO] running `Command { std: "docker" "start" "-a" "b57dded82ea317a293408ce29b67f6d97b9f31debf5dece546b986c92ee0b44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b57dded82ea317a293408ce29b67f6d97b9f31debf5dece546b986c92ee0b44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b57dded82ea317a293408ce29b67f6d97b9f31debf5dece546b986c92ee0b44e", kill_on_drop: false }`
[INFO] [stdout] b57dded82ea317a293408ce29b67f6d97b9f31debf5dece546b986c92ee0b44e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f093d738dc4e6e83ef5d185f29376a68bad374986174cc00163ce6e685a64728
[INFO] running `Command { std: "docker" "start" "-a" "f093d738dc4e6e83ef5d185f29376a68bad374986174cc00163ce6e685a64728", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking encoding8 v0.3.2
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking cool-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `MAX_STR` is never used
[INFO] [stdout]   --> src/lexer.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const MAX_STR: usize = 1026;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `escaped_string` is never used
[INFO] [stdout]   --> src/lexer.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn escaped_string(s: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TokenKind` is never used
[INFO] [stdout]   --> src/lexer.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub enum TokenKind {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]    --> src/lexer.rs:204:12
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub struct Token {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]    --> src/lexer.rs:212:6
[INFO] [stdout]     |
[INFO] [stdout] 212 | enum State {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tokenizer` is never constructed
[INFO] [stdout]    --> src/lexer.rs:224:12
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub struct Tokenizer<'a> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `peek`, `update_pos`, and `new_token` are never used
[INFO] [stdout]    --> src/lexer.rs:235:12
[INFO] [stdout]     |
[INFO] [stdout] 232 | impl<'a> Tokenizer<'a> {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 235 |     pub fn new(src: &'a str) -> Tokenizer<'a> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 247 |     fn peek(&mut self) -> Option<char> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 252 |     fn update_pos(&mut self, ch: char) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 263 |     fn new_token(&mut self, tok: String, is_err: bool) -> Option<Token> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `init`, `number`, `id`, `comment`, `skip_str`, and `str_` are never used
[INFO] [stdout]    --> src/lexer.rs:284:8
[INFO] [stdout]     |
[INFO] [stdout] 283 | impl<'a> Tokenizer<'a> {
[INFO] [stdout]     | ---------------------- methods in this implementation
[INFO] [stdout] 284 |     fn init(&mut self, ch: char, tok: &mut String) -> State {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 359 |     fn number(&mut self, ch: char, tok: &mut String) -> State {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 367 |     fn id(&mut self, ch: char, tok: &mut String) -> State {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 375 |     fn comment(&mut self, ch: char) -> State {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 403 |     fn skip_str(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 413 |     fn str_(&mut self, ch: char, tok: &mut String) -> State {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_STR` is never used
[INFO] [stdout]   --> src/lexer.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const MAX_STR: usize = 1026;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `escaped_string` is never used
[INFO] [stdout]   --> src/lexer.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn escaped_string(s: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TokenKind` is never used
[INFO] [stdout]   --> src/lexer.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub enum TokenKind {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]    --> src/lexer.rs:204:12
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub struct Token {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]    --> src/lexer.rs:212:6
[INFO] [stdout]     |
[INFO] [stdout] 212 | enum State {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tokenizer` is never constructed
[INFO] [stdout]    --> src/lexer.rs:224:12
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub struct Tokenizer<'a> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `peek`, `update_pos`, and `new_token` are never used
[INFO] [stdout]    --> src/lexer.rs:235:12
[INFO] [stdout]     |
[INFO] [stdout] 232 | impl<'a> Tokenizer<'a> {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 235 |     pub fn new(src: &'a str) -> Tokenizer<'a> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 247 |     fn peek(&mut self) -> Option<char> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 252 |     fn update_pos(&mut self, ch: char) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 263 |     fn new_token(&mut self, tok: String, is_err: bool) -> Option<Token> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `init`, `number`, `id`, `comment`, `skip_str`, and `str_` are never used
[INFO] [stdout]    --> src/lexer.rs:284:8
[INFO] [stdout]     |
[INFO] [stdout] 283 | impl<'a> Tokenizer<'a> {
[INFO] [stdout]     | ---------------------- methods in this implementation
[INFO] [stdout] 284 |     fn init(&mut self, ch: char, tok: &mut String) -> State {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 359 |     fn number(&mut self, ch: char, tok: &mut String) -> State {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 367 |     fn id(&mut self, ch: char, tok: &mut String) -> State {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 375 |     fn comment(&mut self, ch: char) -> State {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 403 |     fn skip_str(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 413 |     fn str_(&mut self, ch: char, tok: &mut String) -> State {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `filename` is never read
[INFO] [stdout]   --> tests/test_lexer.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct LexerOutput<R: Read> {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 20 |     pub filename: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `col` is never read
[INFO] [stdout]    --> tests/../src/lexer.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub struct Token {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 207 |     pub col: usize,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/test_lexer.rs:78:30
[INFO] [stdout]    |
[INFO] [stdout] 78 |             Err(e) => panic!(e),
[INFO] [stdout]    |                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 78 |             Err(e) => panic!("{}", e),
[INFO] [stdout]    |                              +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 78 -             Err(e) => panic!(e),
[INFO] [stdout] 78 +             Err(e) => std::panic::panic_any(e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.79s
[INFO] running `Command { std: "docker" "inspect" "f093d738dc4e6e83ef5d185f29376a68bad374986174cc00163ce6e685a64728", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f093d738dc4e6e83ef5d185f29376a68bad374986174cc00163ce6e685a64728", kill_on_drop: false }`
[INFO] [stdout] f093d738dc4e6e83ef5d185f29376a68bad374986174cc00163ce6e685a64728