[INFO] cloning repository https://github.com/butcher-of-blaviken/regexp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/butcher-of-blaviken/regexp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbutcher-of-blaviken%2Fregexp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbutcher-of-blaviken%2Fregexp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c89969871616b0208474f28215674de469d1a0dd
[INFO] testing butcher-of-blaviken/regexp against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbutcher-of-blaviken%2Fregexp" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/butcher-of-blaviken/regexp
[INFO] finished tweaking git repo https://github.com/butcher-of-blaviken/regexp
[INFO] tweaked toml for git repo https://github.com/butcher-of-blaviken/regexp written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/butcher-of-blaviken/regexp on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/butcher-of-blaviken/regexp 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a60ba8626fd4044d32f6baa1e68e45b0467c301036d045464fc1dfa5b780e92d
[INFO] running `Command { std: "docker" "start" "-a" "a60ba8626fd4044d32f6baa1e68e45b0467c301036d045464fc1dfa5b780e92d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a60ba8626fd4044d32f6baa1e68e45b0467c301036d045464fc1dfa5b780e92d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a60ba8626fd4044d32f6baa1e68e45b0467c301036d045464fc1dfa5b780e92d", kill_on_drop: false }`
[INFO] [stdout] a60ba8626fd4044d32f6baa1e68e45b0467c301036d045464fc1dfa5b780e92d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c8200b7d6c1a8293d469cdfc7409cf98d59362b239c65776d7195804c7e5468
[INFO] running `Command { std: "docker" "start" "-a" "6c8200b7d6c1a8293d469cdfc7409cf98d59362b239c65776d7195804c7e5468", kill_on_drop: false }`
[INFO] [stderr]    Compiling regexp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Rc` and `Weak`
[INFO] [stdout]  --> src/parser.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::{Rc, Weak};
[INFO] [stdout]   |               ^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tokens` is never read
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Regex {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 7 |     tokens: Vec<Token>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_binary_operator`, `is_unary_postfix`, and `is_unary_prefix` are never used
[INFO] [stdout]   --> src/lexer.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Token {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 34 |     pub fn is_binary_operator(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn is_unary_postfix(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn is_unary_prefix(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]  --> src/parser.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Expression {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct Parser {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `parse`, `parse_next`, `parse_parens`, `parse_literal`, and `parse_unary_postfix` are never used
[INFO] [stdout]    --> src/parser.rs:82:8
[INFO] [stdout]     |
[INFO] [stdout]  81 | impl Parser {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  82 |     fn new(expression: &str, tokens: Vec<Token>) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  90 |     fn parse(&mut self) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn parse_next(&mut self) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     fn parse_parens(&mut self) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     fn parse_literal(&mut self, token: Token) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn parse_unary_postfix(&mut self, token: Token) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "6c8200b7d6c1a8293d469cdfc7409cf98d59362b239c65776d7195804c7e5468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c8200b7d6c1a8293d469cdfc7409cf98d59362b239c65776d7195804c7e5468", kill_on_drop: false }`
[INFO] [stdout] 6c8200b7d6c1a8293d469cdfc7409cf98d59362b239c65776d7195804c7e5468
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b02abad454e7438a026dc191131dfd2ca03eab02430b68c97f39cccf358d00b7
[INFO] running `Command { std: "docker" "start" "-a" "b02abad454e7438a026dc191131dfd2ca03eab02430b68c97f39cccf358d00b7", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `Rc` and `Weak`
[INFO] [stdout]  --> src/parser.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::{Rc, Weak};
[INFO] [stdout]   |               ^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tokens` is never read
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Regex {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 7 |     tokens: Vec<Token>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_binary_operator`, `is_unary_postfix`, and `is_unary_prefix` are never used
[INFO] [stdout]   --> src/lexer.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Token {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 34 |     pub fn is_binary_operator(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn is_unary_postfix(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn is_unary_prefix(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]  --> src/parser.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Expression {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct Parser {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `parse`, `parse_next`, `parse_parens`, `parse_literal`, and `parse_unary_postfix` are never used
[INFO] [stdout]    --> src/parser.rs:82:8
[INFO] [stdout]     |
[INFO] [stdout]  81 | impl Parser {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  82 |     fn new(expression: &str, tokens: Vec<Token>) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  90 |     fn parse(&mut self) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn parse_next(&mut self) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     fn parse_parens(&mut self) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     fn parse_literal(&mut self, token: Token) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn parse_unary_postfix(&mut self, token: Token) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regexp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Rc` and `Weak`
[INFO] [stdout]  --> src/parser.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::{Rc, Weak};
[INFO] [stdout]   |               ^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tokens` is never read
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Regex {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 7 |     tokens: Vec<Token>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]  --> src/parser.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Expression {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `expression` is never read
[INFO] [stdout]   --> src/parser.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct Parser {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 76 |     expression: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "b02abad454e7438a026dc191131dfd2ca03eab02430b68c97f39cccf358d00b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b02abad454e7438a026dc191131dfd2ca03eab02430b68c97f39cccf358d00b7", kill_on_drop: false }`
[INFO] [stdout] b02abad454e7438a026dc191131dfd2ca03eab02430b68c97f39cccf358d00b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cdccd40e7bb07313d60c2a7276a0f4a477a5a7e5634ce6222eb17b7303024647
[INFO] running `Command { std: "docker" "start" "-a" "cdccd40e7bb07313d60c2a7276a0f4a477a5a7e5634ce6222eb17b7303024647", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Rc` and `Weak`
[INFO] [stderr]  --> src/parser.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::rc::{Rc, Weak};
[INFO] [stderr]   |               ^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `tokens` is never read
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Regex {
[INFO] [stderr]   |            ----- field in this struct
[INFO] [stderr] 7 |     tokens: Vec<Token>,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `is_binary_operator`, `is_unary_postfix`, and `is_unary_prefix` are never used
[INFO] [stderr]   --> src/lexer.rs:34:12
[INFO] [stderr]    |
[INFO] [stderr] 33 | impl Token {
[INFO] [stderr]    | ---------- methods in this implementation
[INFO] [stderr] 34 |     pub fn is_binary_operator(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 38 |     pub fn is_unary_postfix(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |     pub fn is_unary_prefix(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Expression` is never used
[INFO] [stderr]  --> src/parser.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | enum Expression {
[INFO] [stderr]   |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Parser` is never constructed
[INFO] [stderr]   --> src/parser.rs:75:8
[INFO] [stderr]    |
[INFO] [stderr] 75 | struct Parser {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `parse`, `parse_next`, `parse_parens`, `parse_literal`, and `parse_unary_postfix` are never used
[INFO] [stderr]    --> src/parser.rs:82:8
[INFO] [stderr]     |
[INFO] [stderr]  81 | impl Parser {
[INFO] [stderr]     | ----------- associated items in this implementation
[INFO] [stderr]  82 |     fn new(expression: &str, tokens: Vec<Token>) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr]  90 |     fn parse(&mut self) -> Result<(), String> {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 100 |     fn parse_next(&mut self) -> Result<(), String> {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 112 |     fn parse_parens(&mut self) -> Result<(), String> {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 116 |     fn parse_literal(&mut self, token: Token) -> Result<(), String> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 127 |     fn parse_unary_postfix(&mut self, token: Token) -> Result<(), String> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `regexp` (lib) generated 6 warnings (run `cargo fix --lib -p regexp` to apply 1 suggestion)
[INFO] [stderr] warning: field `expression` is never read
[INFO] [stderr]   --> src/parser.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 75 | struct Parser {
[INFO] [stderr]    |        ------ field in this struct
[INFO] [stderr] 76 |     expression: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `regexp` (lib test) generated 4 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/regexp-6d2d94ec572acaa0)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test lexer::tests::regex_lex_unsupported_character ... ok
[INFO] [stdout] test lexer::tests::regex_lex_invalid ... ok
[INFO] [stdout] test lexer::tests::regex_lex ... ok
[INFO] [stdout] test lexer::tests::test_token_is_unary_prefix ... ok
[INFO] [stdout] test lexer::tests::test_token_is_binary_operator ... ok
[INFO] [stdout] test lexer::tests::test_token_is_unary_postfix ... ok
[INFO] [stdout] test lexer::tests::regex_lex_everything ... ok
[INFO] [stdout] test tests::regex_new ... FAILED
[INFO] [stdout] test parser::tests::regex_parse_unary_postfix has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "cdccd40e7bb07313d60c2a7276a0f4a477a5a7e5634ce6222eb17b7303024647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdccd40e7bb07313d60c2a7276a0f4a477a5a7e5634ce6222eb17b7303024647", kill_on_drop: false }`
[INFO] [stdout] cdccd40e7bb07313d60c2a7276a0f4a477a5a7e5634ce6222eb17b7303024647
