[INFO] fetching crate exprz-core 0.0.6...
[INFO] testing exprz-core-0.0.6 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate exprz-core 0.0.6 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate exprz-core 0.0.6
[INFO] finished tweaking crates.io crate exprz-core 0.0.6
[INFO] tweaked toml for crates.io crate exprz-core 0.0.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate exprz-core 0.0.6 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d192ebb7564d652f059bf93473b8f63d4293a93d76de039a85d2645b76eff6a
[INFO] running `Command { std: "docker" "start" "-a" "3d192ebb7564d652f059bf93473b8f63d4293a93d76de039a85d2645b76eff6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d192ebb7564d652f059bf93473b8f63d4293a93d76de039a85d2645b76eff6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d192ebb7564d652f059bf93473b8f63d4293a93d76de039a85d2645b76eff6a", kill_on_drop: false }`
[INFO] [stdout] 3d192ebb7564d652f059bf93473b8f63d4293a93d76de039a85d2645b76eff6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb7501dbfea9bb2f69367cee8f483c981cba9a51b44aebb35c2abf4e43da2316
[INFO] running `Command { std: "docker" "start" "-a" "fb7501dbfea9bb2f69367cee8f483c981cba9a51b44aebb35c2abf4e43da2316", kill_on_drop: false }`
[INFO] [stderr]    Compiling exprz-core v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:416:5
[INFO] [stdout]     |
[INFO] [stdout] 416 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_associated_types` has been stable since 1.65.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(generic_associated_types)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: missing required bound on `Item`
[INFO] [stdout]     --> src/lib.rs:1003:9
[INFO] [stdout]      |
[INFO] [stdout] 1003 | /         type Item<'t>: Borrow<T>
[INFO] [stdout] 1004 | |         where
[INFO] [stdout] 1005 | |             T: 't;
[INFO] [stdout]      | |                  ^
[INFO] [stdout]      | |                  |
[INFO] [stdout]      | |__________________help: add the required where clause: `, Self: 't`
[INFO] [stdout]      |
[INFO] [stdout]      |
[INFO] [stdout]      = note: this bound is currently required to ensure that impls have maximum flexibility
[INFO] [stdout]      = note: we are soliciting feedback, see issue #87479 <https://github.com/rust-lang/rust/issues/87479> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: missing required bound on `Iter`
[INFO] [stdout]     --> src/lib.rs:1008:9
[INFO] [stdout]      |
[INFO] [stdout] 1008 | /         type Iter<'t>: Iterator<Item = Self::Item<'t>>
[INFO] [stdout] 1009 | |         where
[INFO] [stdout] 1010 | |             T: 't;
[INFO] [stdout]      | |                  ^
[INFO] [stdout]      | |                  |
[INFO] [stdout]      | |__________________help: add the required where clause: `, Self: 't`
[INFO] [stdout]      |
[INFO] [stdout]      |
[INFO] [stdout]      = note: this bound is currently required to ensure that impls have maximum flexibility
[INFO] [stdout]      = note: we are soliciting feedback, see issue #87479 <https://github.com/rust-lang/rust/issues/87479> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: missing required bound on `IterGen`
[INFO] [stdout]     --> src/lib.rs:1019:9
[INFO] [stdout]      |
[INFO] [stdout] 1019 | /         type IterGen<'t>: IteratorGen<T>
[INFO] [stdout] 1020 | |         where
[INFO] [stdout] 1021 | |             T: 't;
[INFO] [stdout]      | |                  ^
[INFO] [stdout]      | |                  |
[INFO] [stdout]      | |__________________help: add the required where clause: `, Self: 't`
[INFO] [stdout]      |
[INFO] [stdout]      |
[INFO] [stdout]      = note: this bound is currently required to ensure that impls have maximum flexibility
[INFO] [stdout]      = note: we are soliciting feedback, see issue #87479 <https://github.com/rust-lang/rust/issues/87479> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exprz-core` (lib) due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "fb7501dbfea9bb2f69367cee8f483c981cba9a51b44aebb35c2abf4e43da2316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb7501dbfea9bb2f69367cee8f483c981cba9a51b44aebb35c2abf4e43da2316", kill_on_drop: false }`
[INFO] [stdout] fb7501dbfea9bb2f69367cee8f483c981cba9a51b44aebb35c2abf4e43da2316