[INFO] fetching crate exprz-core 0.0.6...
[INFO] checking exprz-core-0.0.6 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] extracting crate exprz-core 0.0.6 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate exprz-core 0.0.6 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1466c667f5f23f011ceada66a7418d6d870b883899b96c78300fb97cfb68dd13
[INFO] running `Command { std: "docker" "start" "-a" "1466c667f5f23f011ceada66a7418d6d870b883899b96c78300fb97cfb68dd13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1466c667f5f23f011ceada66a7418d6d870b883899b96c78300fb97cfb68dd13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1466c667f5f23f011ceada66a7418d6d870b883899b96c78300fb97cfb68dd13", kill_on_drop: false }`
[INFO] [stdout] 1466c667f5f23f011ceada66a7418d6d870b883899b96c78300fb97cfb68dd13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1a4c9cbbb39778ea268161eabfb905cc493f54d617f7dfbe33ea745db4de1c0
[INFO] running `Command { std: "docker" "start" "-a" "f1a4c9cbbb39778ea268161eabfb905cc493f54d617f7dfbe33ea745db4de1c0", kill_on_drop: false }`
[INFO] [stderr]     Checking exprz-core v0.0.6 (/opt/rustwide/workdir)
[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 `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 `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] [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 `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 `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] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exprz-core` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exprz-core` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "f1a4c9cbbb39778ea268161eabfb905cc493f54d617f7dfbe33ea745db4de1c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1a4c9cbbb39778ea268161eabfb905cc493f54d617f7dfbe33ea745db4de1c0", kill_on_drop: false }`
[INFO] [stdout] f1a4c9cbbb39778ea268161eabfb905cc493f54d617f7dfbe33ea745db4de1c0