[INFO] fetching crate lalrproc 0.0.8...
[INFO] checking lalrproc-0.0.8 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate lalrproc 0.0.8 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate lalrproc 0.0.8
[INFO] finished tweaking crates.io crate lalrproc 0.0.8
[INFO] tweaked toml for crates.io crate lalrproc 0.0.8 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lalrproc 0.0.8 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 59 packages to latest compatible versions
[INFO] [stderr]       Adding lalrpop v0.19.12 (available: v0.22.2)
[INFO] [stderr]       Adding lalrpop-util v0.19.12 (available: v0.22.2)
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e9e70f77677ef9f8ee7e7fdddd4c9d52fa0f18aea68eccc0d8a872cdb3bb166b
[INFO] running `Command { std: "docker" "start" "-a" "e9e70f77677ef9f8ee7e7fdddd4c9d52fa0f18aea68eccc0d8a872cdb3bb166b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9e70f77677ef9f8ee7e7fdddd4c9d52fa0f18aea68eccc0d8a872cdb3bb166b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9e70f77677ef9f8ee7e7fdddd4c9d52fa0f18aea68eccc0d8a872cdb3bb166b", kill_on_drop: false }`
[INFO] [stdout] e9e70f77677ef9f8ee7e7fdddd4c9d52fa0f18aea68eccc0d8a872cdb3bb166b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0400f978c81f4f8b9ba355ffd9833cc37712323feb936437b5fc96df2be9e338
[INFO] running `Command { std: "docker" "start" "-a" "0400f978c81f4f8b9ba355ffd9833cc37712323feb936437b5fc96df2be9e338", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]     Checking lalrpop-util v0.19.12
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling string_cache v0.8.9
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling lalrpop v0.19.12
[INFO] [stderr]    Compiling lalrproc v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/ast.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct Lifetime {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 41 |     pub ident: Ident,
[INFO] [stdout] 42 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lifetime` 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<(span::Span, token::Token, span::Span), NoUserError>
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrproc-d9a1c16b0d810312/out/parse.rs:2593:15
[INFO] [stdout]      |
[INFO] [stdout] 2593 |         match value {
[INFO] [stdout]      |               ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/ast.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct Lifetime {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 41 |     pub ident: Ident,
[INFO] [stdout] 42 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lifetime` 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<(span::Span, token::Token, span::Span), NoUserError>
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrproc-d9a1c16b0d810312/out/parse.rs:2593:15
[INFO] [stdout]      |
[INFO] [stdout] 2593 |         match value {
[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 `lalrproc` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/ast.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct Lifetime {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 41 |     pub ident: Ident,
[INFO] [stdout] 42 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lifetime` 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] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<(span::Span, token::Token, span::Span), NoUserError>
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrproc-d9a1c16b0d810312/out/parse.rs:2593:15
[INFO] [stdout]      |
[INFO] [stdout] 2593 |         match value {
[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 `lalrproc` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] error: could not compile `lalrproc` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "0400f978c81f4f8b9ba355ffd9833cc37712323feb936437b5fc96df2be9e338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0400f978c81f4f8b9ba355ffd9833cc37712323feb936437b5fc96df2be9e338", kill_on_drop: false }`
[INFO] [stdout] 0400f978c81f4f8b9ba355ffd9833cc37712323feb936437b5fc96df2be9e338