[INFO] cloning repository https://github.com/softprops/whistle-blower
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/softprops/whistle-blower" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoftprops%2Fwhistle-blower", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoftprops%2Fwhistle-blower'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b3362b3df0b53ff1b965a41b2c5b907d2e7bc31
[INFO] checking softprops/whistle-blower against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoftprops%2Fwhistle-blower" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/softprops/whistle-blower on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/softprops/whistle-blower
[INFO] finished tweaking git repo https://github.com/softprops/whistle-blower
[INFO] tweaked toml for git repo https://github.com/softprops/whistle-blower written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/softprops/whistle-blower 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded structopt-derive v0.3.5
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded serde_json v1.0.44
[INFO] [stderr]   Downloaded syn v1.0.11
[INFO] [stderr]   Downloaded structopt v0.3.5
[INFO] [stderr]   Downloaded serde_regex v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 189ac94b12e624e05a70a99733987c5d46a26fd0e27b7b6388334521fd418f9a
[INFO] running `Command { std: "docker" "start" "-a" "189ac94b12e624e05a70a99733987c5d46a26fd0e27b7b6388334521fd418f9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "189ac94b12e624e05a70a99733987c5d46a26fd0e27b7b6388334521fd418f9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189ac94b12e624e05a70a99733987c5d46a26fd0e27b7b6388334521fd418f9a", kill_on_drop: false }`
[INFO] [stdout] 189ac94b12e624e05a70a99733987c5d46a26fd0e27b7b6388334521fd418f9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0602eabc48f7dfc3bc63b2f5190454c10de94a2d03a9088f6e04e12cffa4f27e
[INFO] running `Command { std: "docker" "start" "-a" "0602eabc48f7dfc3bc63b2f5190454c10de94a2d03a9088f6e04e12cffa4f27e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking serde_regex v0.4.0
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking whistle-blower v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `problem_matcher` is never read
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Matchers {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 10 |     problem_matcher: Vec<Matcher>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Matchers` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `owner`, `severity`, and `pattern` are never read
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Matcher {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 16 |     owner: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     severity: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 18 |     pattern: Vec<Pattern>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Matcher` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Pattern {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 24 |     #[serde(with = "serde_regex")]
[INFO] [stdout] 25 |     regexp: Regex,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 26 |     file: Option<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 27 |     from_path: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 28 |     line: Option<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 29 |     column: Option<usize>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 30 |     severity: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 31 |     code: Option<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |     message: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 33 |     #[serde(alias = "loop")]
[INFO] [stdout] 34 |     loops: Option<bool>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pattern` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `target` and `matchers` are never read
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Opts {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     target: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 42 |     /// List of paths that define problem matchers
[INFO] [stdout] 43 |     matchers: Vec<PathBuf>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opts` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `problem_matcher` is never read
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Matchers {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 10 |     problem_matcher: Vec<Matcher>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Matchers` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `owner`, `severity`, and `pattern` are never read
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Matcher {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 16 |     owner: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     severity: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 18 |     pattern: Vec<Pattern>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Matcher` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Pattern {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 24 |     #[serde(with = "serde_regex")]
[INFO] [stdout] 25 |     regexp: Regex,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 26 |     file: Option<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 27 |     from_path: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 28 |     line: Option<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 29 |     column: Option<usize>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 30 |     severity: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 31 |     code: Option<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |     message: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 33 |     #[serde(alias = "loop")]
[INFO] [stdout] 34 |     loops: Option<bool>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pattern` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `target` and `matchers` are never read
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Opts {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     target: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 42 |     /// List of paths that define problem matchers
[INFO] [stdout] 43 |     matchers: Vec<PathBuf>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opts` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.12s
[INFO] running `Command { std: "docker" "inspect" "0602eabc48f7dfc3bc63b2f5190454c10de94a2d03a9088f6e04e12cffa4f27e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0602eabc48f7dfc3bc63b2f5190454c10de94a2d03a9088f6e04e12cffa4f27e", kill_on_drop: false }`
[INFO] [stdout] 0602eabc48f7dfc3bc63b2f5190454c10de94a2d03a9088f6e04e12cffa4f27e
