[INFO] fetching crate delay_line 0.1.2...
[INFO] testing delay_line-0.1.2 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate delay_line 0.1.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate delay_line 0.1.2
[INFO] finished tweaking crates.io crate delay_line 0.1.2
[INFO] tweaked toml for crates.io crate delay_line 0.1.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate delay_line 0.1.2 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate delay_line 0.1.2 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f94381166700194d3689953f3b0d07d7151821d8ed9e95acf3635c41d1f83bf
[INFO] running `Command { std: "docker" "start" "-a" "4f94381166700194d3689953f3b0d07d7151821d8ed9e95acf3635c41d1f83bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f94381166700194d3689953f3b0d07d7151821d8ed9e95acf3635c41d1f83bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f94381166700194d3689953f3b0d07d7151821d8ed9e95acf3635c41d1f83bf", kill_on_drop: false }`
[INFO] [stdout] 4f94381166700194d3689953f3b0d07d7151821d8ed9e95acf3635c41d1f83bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e326f5a274851ac217bdac33a5c4ad6aa07eda0b8b0ad13ffbe0bf6de462040
[INFO] running `Command { std: "docker" "start" "-a" "5e326f5a274851ac217bdac33a5c4ad6aa07eda0b8b0ad13ffbe0bf6de462040", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling delay_line v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `inherent_associated_types` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(inherent_associated_types)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #8995 <https://github.com/rust-lang/rust/issues/8995> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Output` not found for `DelayLine<T, A>` in the current scope
[INFO] [stdout]     --> src/lib.rs:1047:68
[INFO] [stdout]      |
[INFO] [stdout]   76 | pub struct DelayLine<T, A = Global>
[INFO] [stdout]      | ----------------------------------- associated type `Output` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 1047 |     extern "rust-call" fn call_once(mut self, (x,): (T,)) -> Self::Output
[INFO] [stdout]      |                                                                    ^^^^^^ associated item not found in `DelayLine<T, A>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: the associated type was found for
[INFO] [stdout]              
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Output` not found for `DelayLine<T, A>` in the current scope
[INFO] [stdout]     --> src/lib.rs:1056:68
[INFO] [stdout]      |
[INFO] [stdout]   76 | pub struct DelayLine<T, A = Global>
[INFO] [stdout]      | ----------------------------------- associated type `Output` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 1056 |     extern "rust-call" fn call_mut(&mut self, (x,): (T,)) -> Self::Output
[INFO] [stdout]      |                                                                    ^^^^^^ associated item not found in `DelayLine<T, A>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: the associated type was found for
[INFO] [stdout]              
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:437:9
[INFO] [stdout]     |
[INFO] [stdout] 431 |     pub fn push_in_within_capacity(&mut self, value: T) -> Result<(), T>
[INFO] [stdout]     |                                                            ------------- expected `Result<(), T>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 437 |         self.make_contiguous().push_within_capacity(value)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<(), T>`, found `Result<&mut T, T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Result<(), _>`
[INFO] [stdout]                found enum `Result<&mut T, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0220, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0220`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `delay_line` (lib) due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5e326f5a274851ac217bdac33a5c4ad6aa07eda0b8b0ad13ffbe0bf6de462040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e326f5a274851ac217bdac33a5c4ad6aa07eda0b8b0ad13ffbe0bf6de462040", kill_on_drop: false }`
[INFO] [stdout] 5e326f5a274851ac217bdac33a5c4ad6aa07eda0b8b0ad13ffbe0bf6de462040
