[INFO] cloning repository https://github.com/o-in25/iron
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/o-in25/iron" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fo-in25%2Firon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fo-in25%2Firon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea70423ca4eeaaf8155a552eb48445ced2fe7898
[INFO] checking o-in25/iron against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fo-in25%2Firon" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/o-in25/iron
[INFO] finished tweaking git repo https://github.com/o-in25/iron
[INFO] tweaked toml for git repo https://github.com/o-in25/iron written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/o-in25/iron on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/o-in25/iron 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.40
[INFO] [stderr]   Downloaded cfg-if v0.1.9
[INFO] [stderr]   Downloaded dbghelp-sys v0.2.0
[INFO] [stderr]   Downloaded stacktrace v0.2.1
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded backtrace v0.2.3
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded regex-syntax v0.6.11
[INFO] [stderr]   Downloaded regex v1.2.1
[INFO] [stderr]   Downloaded libc v0.2.62
[INFO] [stderr]   Downloaded backtrace-sys v0.1.31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89682f069521044a0c870757b03823dbff9f64a1b542ef83fd253e9791fb7f30
[INFO] running `Command { std: "docker" "start" "-a" "89682f069521044a0c870757b03823dbff9f64a1b542ef83fd253e9791fb7f30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89682f069521044a0c870757b03823dbff9f64a1b542ef83fd253e9791fb7f30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89682f069521044a0c870757b03823dbff9f64a1b542ef83fd253e9791fb7f30", kill_on_drop: false }`
[INFO] [stdout] 89682f069521044a0c870757b03823dbff9f64a1b542ef83fd253e9791fb7f30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49ec17ce5feb1217fc47b7adfa458f84822be89043034dc0a6637aa1c2debd37
[INFO] running `Command { std: "docker" "start" "-a" "49ec17ce5feb1217fc47b7adfa458f84822be89043034dc0a6637aa1c2debd37", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking stacktrace v0.2.1
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]     Checking iron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use regex::Regex;
[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: `std::vec::Vec`
[INFO] [stdout]  --> src/lexer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use regex::Regex;
[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: `std::vec::Vec`
[INFO] [stdout]  --> src/lexer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/lexer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum NameT {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 11 |     OpenBrace,
[INFO] [stdout] 12 |     CloseBrace,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     OpenParenthesis,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     CloseParenthesis,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     Semicolon,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 16 |     IntegerKeyword,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 17 |     ReturnKeyword,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 18 |     Identifier,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 19 |     IntegerLiteral
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `value` are never read
[INFO] [stdout]   --> src/lexer.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct TokenT<'a> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 23 |     name: NameT,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     value: &'a str
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer.rs:29:23
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn next(sequence: &str) -> TokenT {
[INFO] [stdout]    |                       ^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn next(sequence: &str) -> TokenT<'_> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/lexer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum NameT {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 11 |     OpenBrace,
[INFO] [stdout] 12 |     CloseBrace,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     OpenParenthesis,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     CloseParenthesis,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     Semicolon,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 16 |     IntegerKeyword,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 17 |     ReturnKeyword,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 18 |     Identifier,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 19 |     IntegerLiteral
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `value` are never read
[INFO] [stdout]   --> src/lexer.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct TokenT<'a> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 23 |     name: NameT,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     value: &'a str
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer.rs:29:23
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn next(sequence: &str) -> TokenT {
[INFO] [stdout]    |                       ^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn next(sequence: &str) -> TokenT<'_> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.01s
[INFO] running `Command { std: "docker" "inspect" "49ec17ce5feb1217fc47b7adfa458f84822be89043034dc0a6637aa1c2debd37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49ec17ce5feb1217fc47b7adfa458f84822be89043034dc0a6637aa1c2debd37", kill_on_drop: false }`
[INFO] [stdout] 49ec17ce5feb1217fc47b7adfa458f84822be89043034dc0a6637aa1c2debd37
