[INFO] fetching crate rs-hack 0.4.3...
[INFO] checking rs-hack-0.4.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rs-hack 0.4.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rs-hack 0.4.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rs-hack 0.4.3
[INFO] tweaked toml for crates.io crate rs-hack 0.4.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rs-hack 0.4.3 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 rs-hack 0.4.3 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3725720b92bceacb52f24e7af5c53fdc967d9e6139e5c432ce6e315712cba087
[INFO] running `Command { std: "docker" "start" "-a" "3725720b92bceacb52f24e7af5c53fdc967d9e6139e5c432ce6e315712cba087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3725720b92bceacb52f24e7af5c53fdc967d9e6139e5c432ce6e315712cba087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3725720b92bceacb52f24e7af5c53fdc967d9e6139e5c432ce6e315712cba087", kill_on_drop: false }`
[INFO] [stdout] 3725720b92bceacb52f24e7af5c53fdc967d9e6139e5c432ce6e315712cba087
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3f542456158d043417dd8c320eddc2ecf3683afe4c617d4230eedbc5f5b0a6c2
[INFO] running `Command { std: "docker" "start" "-a" "3f542456158d043417dd8c320eddc2ecf3683afe4c617d4230eedbc5f5b0a6c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling blake3 v1.8.2
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]     Checking constant_time_eq v0.3.1
[INFO] [stderr]     Checking glob v0.3.3
[INFO] [stderr]     Checking similar v2.7.0
[INFO] [stderr]     Checking tempfile v3.23.0
[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]     Checking clap_builder v4.5.51
[INFO] [stderr]    Compiling syn v2.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]     Checking clap v4.5.51
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]     Checking rs-hack v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::surgical::Replacement`
[INFO] [stdout]     --> src/editor.rs:2533:21
[INFO] [stdout]      |
[INFO] [stdout] 2533 |                 use crate::surgical::Replacement;
[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: `crate::surgical::Replacement`
[INFO] [stdout]     --> src/editor.rs:2533:21
[INFO] [stdout]      |
[INFO] [stdout] 2533 |                 use crate::surgical::Replacement;
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `def_modified` is never read
[INFO] [stdout]    --> src/editor.rs:168:32
[INFO] [stdout]     |
[INFO] [stdout] 168 |         let mut def_modified = false;
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `def_modified` is never read
[INFO] [stdout]    --> src/editor.rs:168:32
[INFO] [stdout]     |
[INFO] [stdout] 168 |         let mut def_modified = false;
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]     --> src/editor.rs:3574:18
[INFO] [stdout]      |
[INFO] [stdout] 3574 |             for (i, comment_line) in comment_lines.iter().rev().enumerate() {
[INFO] [stdout]      |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Meta, Infallible>
[INFO] [stdout]     --> src/editor.rs:1533:57
[INFO] [stdout]      |
[INFO] [stdout] 1533 |                 if let Ok(syn::Meta::List(meta_list)) = attr.meta.clone().try_into() {
[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 `rs-hack` (lib) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]     --> src/editor.rs:3574:18
[INFO] [stdout]      |
[INFO] [stdout] 3574 |             for (i, comment_line) in comment_lines.iter().rev().enumerate() {
[INFO] [stdout]      |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Meta, Infallible>
[INFO] [stdout]     --> src/editor.rs:1533:57
[INFO] [stdout]      |
[INFO] [stdout] 1533 |                 if let Ok(syn::Meta::List(meta_list)) = attr.meta.clone().try_into() {
[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 `rs-hack` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3f542456158d043417dd8c320eddc2ecf3683afe4c617d4230eedbc5f5b0a6c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f542456158d043417dd8c320eddc2ecf3683afe4c617d4230eedbc5f5b0a6c2", kill_on_drop: false }`
[INFO] [stdout] 3f542456158d043417dd8c320eddc2ecf3683afe4c617d4230eedbc5f5b0a6c2