[INFO] cloning repository https://github.com/otdavies/rust_shared_utilties
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/otdavies/rust_shared_utilties" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fotdavies%2Frust_shared_utilties", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fotdavies%2Frust_shared_utilties'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ebadd6a142c4566e849462e5002d4422b7c08b8e
[INFO] testing otdavies/rust_shared_utilties against beta-2025-10-28 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fotdavies%2Frust_shared_utilties" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/otdavies/rust_shared_utilties
[INFO] finished tweaking git repo https://github.com/otdavies/rust_shared_utilties
[INFO] tweaked toml for git repo https://github.com/otdavies/rust_shared_utilties written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/otdavies/rust_shared_utilties 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] crate git repo https://github.com/otdavies/rust_shared_utilties 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" "+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-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" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a926c79ea395dd82370dc8af8d91944036b529579241034a188c06666fdc6944
[INFO] running `Command { std: "docker" "start" "-a" "a926c79ea395dd82370dc8af8d91944036b529579241034a188c06666fdc6944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a926c79ea395dd82370dc8af8d91944036b529579241034a188c06666fdc6944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a926c79ea395dd82370dc8af8d91944036b529579241034a188c06666fdc6944", kill_on_drop: false }`
[INFO] [stdout] a926c79ea395dd82370dc8af8d91944036b529579241034a188c06666fdc6944
[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=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] a2cd2fa9ed81611e51b1597daed36d237a789bc3896fdc21ba3113ad7de1b170
[INFO] running `Command { std: "docker" "start" "-a" "a2cd2fa9ed81611e51b1597daed36d237a789bc3896fdc21ba3113ad7de1b170", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_shared_utilities v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `unsubscribe` is never used
[INFO] [stdout]   --> src/patterns/observer.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait IListen<'a, T> {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] 20 |     fn subscribe(&mut self, observer: impl IObserve<T> + 'a);
[INFO] [stdout] 21 |     fn unsubscribe(&mut self, observer: impl IObserve<T> + 'a);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "a2cd2fa9ed81611e51b1597daed36d237a789bc3896fdc21ba3113ad7de1b170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2cd2fa9ed81611e51b1597daed36d237a789bc3896fdc21ba3113ad7de1b170", kill_on_drop: false }`
[INFO] [stdout] a2cd2fa9ed81611e51b1597daed36d237a789bc3896fdc21ba3113ad7de1b170
[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=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] 222bf62e8c0417e69b6fb8ba345d1cc9c7aa13dd8a4f8dbc8457375def2fa5aa
[INFO] running `Command { std: "docker" "start" "-a" "222bf62e8c0417e69b6fb8ba345d1cc9c7aa13dd8a4f8dbc8457375def2fa5aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_shared_utilities v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `unsubscribe` is never used
[INFO] [stdout]   --> src/patterns/observer.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait IListen<'a, T> {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] 20 |     fn subscribe(&mut self, observer: impl IObserve<T> + 'a);
[INFO] [stdout] 21 |     fn unsubscribe(&mut self, observer: impl IObserve<T> + 'a);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "222bf62e8c0417e69b6fb8ba345d1cc9c7aa13dd8a4f8dbc8457375def2fa5aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "222bf62e8c0417e69b6fb8ba345d1cc9c7aa13dd8a4f8dbc8457375def2fa5aa", kill_on_drop: false }`
[INFO] [stdout] 222bf62e8c0417e69b6fb8ba345d1cc9c7aa13dd8a4f8dbc8457375def2fa5aa
[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=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] b6dd5249ee8ec72087c410c7510cc15586e1587daef2fb4d79655e3d9d1b88f4
[INFO] running `Command { std: "docker" "start" "-a" "b6dd5249ee8ec72087c410c7510cc15586e1587daef2fb4d79655e3d9d1b88f4", kill_on_drop: false }`
[INFO] [stderr] warning: method `unsubscribe` is never used
[INFO] [stderr]   --> src/patterns/observer.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub trait IListen<'a, T> {
[INFO] [stderr]    |           ------- method in this trait
[INFO] [stderr] 20 |     fn subscribe(&mut self, observer: impl IObserve<T> + 'a);
[INFO] [stderr] 21 |     fn unsubscribe(&mut self, observer: impl IObserve<T> + 'a);
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_shared_utilities` (bin "rust_shared_utilities" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_shared_utilities-0aa41f282f022bef)
[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" "b6dd5249ee8ec72087c410c7510cc15586e1587daef2fb4d79655e3d9d1b88f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6dd5249ee8ec72087c410c7510cc15586e1587daef2fb4d79655e3d9d1b88f4", kill_on_drop: false }`
[INFO] [stdout] b6dd5249ee8ec72087c410c7510cc15586e1587daef2fb4d79655e3d9d1b88f4