[INFO] fetching crate mairs 0.1.6...
[INFO] testing mairs-0.1.6 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mairs 0.1.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mairs 0.1.6
[INFO] finished tweaking crates.io crate mairs 0.1.6
[INFO] tweaked toml for crates.io crate mairs 0.1.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mairs 0.1.6 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding colored v2.2.0 (available: v3.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 824f50c95c9150b823606f9ea92ab5c7ceb4302033129b3dde97551535a203c2
[INFO] running `Command { std: "docker" "start" "-a" "824f50c95c9150b823606f9ea92ab5c7ceb4302033129b3dde97551535a203c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "824f50c95c9150b823606f9ea92ab5c7ceb4302033129b3dde97551535a203c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "824f50c95c9150b823606f9ea92ab5c7ceb4302033129b3dde97551535a203c2", kill_on_drop: false }`
[INFO] [stdout] 824f50c95c9150b823606f9ea92ab5c7ceb4302033129b3dde97551535a203c2
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c543a6fa1f9add4cbab646bef8afae34fe4c0906946e5c5b944ff6505144385
[INFO] running `Command { std: "docker" "start" "-a" "7c543a6fa1f9add4cbab646bef8afae34fe4c0906946e5c5b944ff6505144385", kill_on_drop: false }`
[INFO] [stderr]    Compiling colored v2.2.0
[INFO] [stderr]    Compiling mairs v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/lib.rs:323:4
[INFO] [stdout]     |
[INFO] [stdout] 323 | fn main(){
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:286:70
[INFO] [stdout]     |
[INFO] [stdout] 286 |    pub fn unite<'a>(&'a self, layers:&'a Vec<&mut Layer>) -> Vec<Vec<&Character>>{
[INFO] [stdout]     |                      --               -- the lifetime is named here  ^^^^^^^^^^ the same lifetime is elided 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] 286 |    pub fn unite<'a>(&'a self, layers:&'a Vec<&mut Layer>) -> Vec<Vec<&'a Character>>{
[INFO] [stdout]     |                                                                       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "7c543a6fa1f9add4cbab646bef8afae34fe4c0906946e5c5b944ff6505144385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c543a6fa1f9add4cbab646bef8afae34fe4c0906946e5c5b944ff6505144385", kill_on_drop: false }`
[INFO] [stdout] 7c543a6fa1f9add4cbab646bef8afae34fe4c0906946e5c5b944ff6505144385
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b5032aad290c480ee4604ad23d309ff1440a25115c6cce5358c1278546d630f
[INFO] running `Command { std: "docker" "start" "-a" "5b5032aad290c480ee4604ad23d309ff1440a25115c6cce5358c1278546d630f", kill_on_drop: false }`
[INFO] [stderr]    Compiling mairs v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:286:70
[INFO] [stdout]     |
[INFO] [stdout] 286 |    pub fn unite<'a>(&'a self, layers:&'a Vec<&mut Layer>) -> Vec<Vec<&Character>>{
[INFO] [stdout]     |                      --               -- the lifetime is named here  ^^^^^^^^^^ the same lifetime is elided 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] 286 |    pub fn unite<'a>(&'a self, layers:&'a Vec<&mut Layer>) -> Vec<Vec<&'a Character>>{
[INFO] [stdout]     |                                                                       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "5b5032aad290c480ee4604ad23d309ff1440a25115c6cce5358c1278546d630f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b5032aad290c480ee4604ad23d309ff1440a25115c6cce5358c1278546d630f", kill_on_drop: false }`
[INFO] [stdout] 5b5032aad290c480ee4604ad23d309ff1440a25115c6cce5358c1278546d630f
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ac743abd45b722af33b743e8d1593e56ab1c8c8347451411a11499b6edeaa3c3
[INFO] running `Command { std: "docker" "start" "-a" "ac743abd45b722af33b743e8d1593e56ab1c8c8347451411a11499b6edeaa3c3", kill_on_drop: false }`
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:286:70
[INFO] [stderr]     |
[INFO] [stderr] 286 |    pub fn unite<'a>(&'a self, layers:&'a Vec<&mut Layer>) -> Vec<Vec<&Character>>{
[INFO] [stderr]     |                      --               -- the lifetime is named here  ^^^^^^^^^^ the same lifetime is elided here
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      the lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 286 |    pub fn unite<'a>(&'a self, layers:&'a Vec<&mut Layer>) -> Vec<Vec<&'a Character>>{
[INFO] [stderr]     |                                                                       ++
[INFO] [stderr] 
[INFO] [stderr] warning: `mairs` (lib test) generated 1 warning (run `cargo fix --lib -p mairs --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mairs-20bfe8e8cbbe87c3)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ac743abd45b722af33b743e8d1593e56ab1c8c8347451411a11499b6edeaa3c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac743abd45b722af33b743e8d1593e56ab1c8c8347451411a11499b6edeaa3c3", kill_on_drop: false }`
[INFO] [stdout] ac743abd45b722af33b743e8d1593e56ab1c8c8347451411a11499b6edeaa3c3