[INFO] cloning repository https://github.com/zyxw59/rssc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zyxw59/rssc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzyxw59%2Frssc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzyxw59%2Frssc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c33c1fb64b8bb14091a5f25332496a313ab5342
[INFO] checking zyxw59/rssc against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzyxw59%2Frssc" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zyxw59/rssc
[INFO] finished tweaking git repo https://github.com/zyxw59/rssc
[INFO] tweaked toml for git repo https://github.com/zyxw59/rssc written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zyxw59/rssc 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 git repo https://github.com/zyxw59/rssc 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] fe134ba87127d5910f0d1bf9646b7e2c668dfced691288aed87210c8e89430db
[INFO] running `Command { std: "docker" "start" "-a" "fe134ba87127d5910f0d1bf9646b7e2c668dfced691288aed87210c8e89430db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe134ba87127d5910f0d1bf9646b7e2c668dfced691288aed87210c8e89430db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe134ba87127d5910f0d1bf9646b7e2c668dfced691288aed87210c8e89430db", kill_on_drop: false }`
[INFO] [stdout] fe134ba87127d5910f0d1bf9646b7e2c668dfced691288aed87210c8e89430db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7d137659d294d4fb332831ffe6840fd846237bb0f6a31959ddf7fe42c75333f0
[INFO] running `Command { std: "docker" "start" "-a" "7d137659d294d4fb332831ffe6840fd846237bb0f6a31959ddf7fe42c75333f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling unicode-general-category v0.5.1
[INFO] [stderr]     Checking hashbrown v0.12.2
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking unicode-normalization v0.1.21
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling utf32-lit v1.2.0
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking irregex v0.1.0 (https://github.com/zyxw59/irregex.git#c78fd7b8)
[INFO] [stderr]     Checking rssc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `elements` and `name` are never read
[INFO] [stdout]   --> src/category.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Category {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 22 |     /// The elements of the category
[INFO] [stdout] 23 |     elements: Vec<Element>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     name: Ident,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Category` 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] warning: function `match_line` is never used
[INFO] [stdout]   --> src/parser/mod.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn match_line<I, T>(line: &mut I) -> StatementType
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StatementType` is never used
[INFO] [stdout]   --> src/parser/mod.rs:55:6
[INFO] [stdout]    |
[INFO] [stdout] 55 | enum StatementType {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `elements` and `name` are never read
[INFO] [stdout]   --> src/category.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Category {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 22 |     /// The elements of the category
[INFO] [stdout] 23 |     elements: Vec<Element>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     name: Ident,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Category` 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<BooleanExpr<U>, Infallible>
[INFO] [stdout]   --> src/utils.rs:40:15
[INFO] [stdout]    |
[INFO] [stdout] 40 |         match self.try_map(|x| Ok::<_, std::convert::Infallible>(func(x))) {
[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<utils::BooleanExpr<U>, Infallible>
[INFO] [stdout]   --> src/utils.rs:40:15
[INFO] [stdout]    |
[INFO] [stdout] 40 |         match self.try_map(|x| Ok::<_, std::convert::Infallible>(func(x))) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rssc` (bin "rssc") due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rssc` (bin "rssc" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7d137659d294d4fb332831ffe6840fd846237bb0f6a31959ddf7fe42c75333f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d137659d294d4fb332831ffe6840fd846237bb0f6a31959ddf7fe42c75333f0", kill_on_drop: false }`
[INFO] [stdout] 7d137659d294d4fb332831ffe6840fd846237bb0f6a31959ddf7fe42c75333f0
