[INFO] fetching crate luaudoc 1.0.9...
[INFO] checking luaudoc-1.0.9 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate luaudoc 1.0.9 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate luaudoc 1.0.9
[INFO] finished tweaking crates.io crate luaudoc 1.0.9
[INFO] tweaked toml for crates.io crate luaudoc 1.0.9 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate luaudoc 1.0.9 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate luaudoc 1.0.9 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76f5586113b698d432d422a2926c5c509f30f6aee8d5bc117431d9e94826b74b
[INFO] running `Command { std: "docker" "start" "-a" "76f5586113b698d432d422a2926c5c509f30f6aee8d5bc117431d9e94826b74b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76f5586113b698d432d422a2926c5c509f30f6aee8d5bc117431d9e94826b74b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76f5586113b698d432d422a2926c5c509f30f6aee8d5bc117431d9e94826b74b", kill_on_drop: false }`
[INFO] [stdout] 76f5586113b698d432d422a2926c5c509f30f6aee8d5bc117431d9e94826b74b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81ada931a3d695301c3f801b1449ec9f2738f587827ed0b6772223dcf0124f1f
[INFO] running `Command { std: "docker" "start" "-a" "81ada931a3d695301c3f801b1449ec9f2738f587827ed0b6772223dcf0124f1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling cc v1.0.97
[INFO] [stderr]    Compiling serde v1.0.202
[INFO] [stderr]     Checking unicode-width v0.1.12
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling fs-err v2.11.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling anyhow v1.0.83
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking bytecount v0.6.8
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking pathdiff v0.2.1
[INFO] [stderr]     Checking similar v2.5.0
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling stacker v0.1.15
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.202
[INFO] [stderr]    Compiling logos-derive v0.12.1
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling full_moon_derive v0.11.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking logos v0.12.1
[INFO] [stderr]     Checking smol_str v0.1.24
[INFO] [stderr]     Checking insta v1.39.0
[INFO] [stderr]     Checking full_moon v0.18.1
[INFO] [stderr]     Checking luaudoc v1.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `file_id` is never read
[INFO] [stdout]   --> src/source_file.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct SourceFile {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 12 |     doc_comments: Vec<DocComment>,
[INFO] [stdout] 13 |     file_id: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SourceFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/cli.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub input_path: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/cli.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// The base path that source paths in the output will be relative to.
[INFO] [stdout] 23 | |     /// If unspecified, the input path is used.
[INFO] [stdout] 24 | |     #[structopt(long = "base", short = "b")]
[INFO] [stdout] 25 | |     pub base_path: Option<PathBuf>,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/source_file.rs:178:42
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn parse(&'a self) -> Result<Vec<DocEntry>, Error> {
[INFO] [stdout]     |                   --                     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn parse(&'a self) -> Result<Vec<DocEntry<'a>>, Error> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file_id` is never read
[INFO] [stdout]   --> src/source_file.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct SourceFile {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 12 |     doc_comments: Vec<DocComment>,
[INFO] [stdout] 13 |     file_id: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SourceFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `luaudoc` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/cli.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub input_path: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/cli.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// The base path that source paths in the output will be relative to.
[INFO] [stdout] 23 | |     /// If unspecified, the input path is used.
[INFO] [stdout] 24 | |     #[structopt(long = "base", short = "b")]
[INFO] [stdout] 25 | |     pub base_path: Option<PathBuf>,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `luaudoc` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/source_file.rs:178:42
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn parse(&'a self) -> Result<Vec<DocEntry>, Error> {
[INFO] [stdout]     |                   --                     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn parse(&'a self) -> Result<Vec<DocEntry<'a>>, Error> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "81ada931a3d695301c3f801b1449ec9f2738f587827ed0b6772223dcf0124f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81ada931a3d695301c3f801b1449ec9f2738f587827ed0b6772223dcf0124f1f", kill_on_drop: false }`
[INFO] [stdout] 81ada931a3d695301c3f801b1449ec9f2738f587827ed0b6772223dcf0124f1f
