[INFO] fetching crate alternating-iter 0.3.1... [INFO] checking alternating-iter-0.3.1 against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf-spurious [INFO] extracting crate alternating-iter 0.3.1 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate alternating-iter 0.3.1 [INFO] finished tweaking crates.io crate alternating-iter 0.3.1 [INFO] tweaked toml for crates.io crate alternating-iter 0.3.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate alternating-iter 0.3.1 on toolchain b6bca0d7327839b5e3f7a7779947cb9113d08917 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "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" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "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" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fdeb70b701bd175de8da03fca2de3bf341a804c5956c3487a11a85e0b39411b7 [INFO] running `Command { std: "docker" "start" "-a" "fdeb70b701bd175de8da03fca2de3bf341a804c5956c3487a11a85e0b39411b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fdeb70b701bd175de8da03fca2de3bf341a804c5956c3487a11a85e0b39411b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fdeb70b701bd175de8da03fca2de3bf341a804c5956c3487a11a85e0b39411b7", kill_on_drop: false }` [INFO] [stdout] fdeb70b701bd175de8da03fca2de3bf341a804c5956c3487a11a85e0b39411b7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Zstrict-projection-item-bounds" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 04d7fcbf8323162e4a11a6b6758ab8c6d8b3d67466f3f913887d81554898bd93 [INFO] running `Command { std: "docker" "start" "-a" "04d7fcbf8323162e4a11a6b6758ab8c6d8b3d67466f3f913887d81554898bd93", kill_on_drop: false }` [INFO] [stderr] Checking alternating-iter v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `core::iter` [INFO] [stdout] --> src/alternating.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use core::iter; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `::Item == as IntoIterator>::Item` [INFO] [stdout] --> src/alternating.rs:29:91 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn new(i: impl IntoIterator, j: impl IntoIterator) -> Self { [INFO] [stdout] | ^^^^ cannot satisfy `::Item == as IntoIterator>::Item` [INFO] [stdout] | [INFO] [stdout] note: required by a bound in `Alternating` [INFO] [stdout] --> src/alternating.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Alternating [INFO] [stdout] | ----------- required by a bound in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | J: Iterator, [INFO] [stdout] | ^^^^^^^^^^^^^^ required by this bound in `Alternating` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `::Item == as IntoIterator>::Item` [INFO] [stdout] --> src/alternating.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | Self { [INFO] [stdout] | ^^^^ cannot satisfy `::Item == as IntoIterator>::Item` [INFO] [stdout] | [INFO] [stdout] note: required by a bound in `Alternating` [INFO] [stdout] --> src/alternating.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Alternating [INFO] [stdout] | ----------- required by a bound in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | J: Iterator, [INFO] [stdout] | ^^^^^^^^^^^^^^ required by this bound in `Alternating` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0284`. [INFO] [stdout] [INFO] [stderr] error: could not compile `alternating-iter` (lib) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `::Item == as IntoIterator>::Item` [INFO] [stdout] --> src/alternating.rs:29:91 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn new(i: impl IntoIterator, j: impl IntoIterator) -> Self { [INFO] [stdout] | ^^^^ cannot satisfy `::Item == as IntoIterator>::Item` [INFO] [stdout] | [INFO] [stdout] note: required by a bound in `Alternating` [INFO] [stdout] --> src/alternating.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Alternating [INFO] [stdout] | ----------- required by a bound in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | J: Iterator, [INFO] [stdout] | ^^^^^^^^^^^^^^ required by this bound in `Alternating` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `::Item == as IntoIterator>::Item` [INFO] [stdout] --> src/alternating.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | Self { [INFO] [stdout] | ^^^^ cannot satisfy `::Item == as IntoIterator>::Item` [INFO] [stdout] | [INFO] [stdout] note: required by a bound in `Alternating` [INFO] [stdout] --> src/alternating.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Alternating [INFO] [stdout] | ----------- required by a bound in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | J: Iterator, [INFO] [stdout] | ^^^^^^^^^^^^^^ required by this bound in `Alternating` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0284`. [INFO] [stdout] [INFO] [stderr] error: could not compile `alternating-iter` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "04d7fcbf8323162e4a11a6b6758ab8c6d8b3d67466f3f913887d81554898bd93", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04d7fcbf8323162e4a11a6b6758ab8c6d8b3d67466f3f913887d81554898bd93", kill_on_drop: false }` [INFO] [stdout] 04d7fcbf8323162e4a11a6b6758ab8c6d8b3d67466f3f913887d81554898bd93