[INFO] fetching crate quasi_iter 0.1.4...
[INFO] checking quasi_iter-0.1.4 against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf
[INFO] extracting crate quasi_iter 0.1.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate quasi_iter 0.1.4
[INFO] finished tweaking crates.io crate quasi_iter 0.1.4
[INFO] tweaked toml for crates.io crate quasi_iter 0.1.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate quasi_iter 0.1.4 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a25a664d3e3970977b86a94dfe4a805f0b6b26241ff150f75ab1d422fa958261
[INFO] running `Command { std: "docker" "start" "-a" "a25a664d3e3970977b86a94dfe4a805f0b6b26241ff150f75ab1d422fa958261", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a25a664d3e3970977b86a94dfe4a805f0b6b26241ff150f75ab1d422fa958261", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a25a664d3e3970977b86a94dfe4a805f0b6b26241ff150f75ab1d422fa958261", kill_on_drop: false }`
[INFO] [stdout] a25a664d3e3970977b86a94dfe4a805f0b6b26241ff150f75ab1d422fa958261
[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 -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] a63383c75e49c523c733ea96a155be6228eb99d473e40885d37ae56357968689
[INFO] running `Command { std: "docker" "start" "-a" "a63383c75e49c523c733ea96a155be6228eb99d473e40885d37ae56357968689", kill_on_drop: false }`
[INFO] [stderr]     Checking quasi_iter v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/iter/traits/collect.rs:291:28
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] note: the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item` appears on the `impl`'s method `merge` but not on the corresponding trait's method
[INFO] [stdout]    --> src/merge.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub trait Mergable<J, O>: Iterator + Sized 
[INFO] [stdout]     |           -------- in this trait
[INFO] [stdout] ...
[INFO] [stdout] 144 |     fn merge<L>(self, other: L) -> Merge<Self,J,O>
[INFO] [stdout]     |        ^^^^^ this trait's method doesn't have the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/iter/traits/collect.rs:291:28
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] note: the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item` appears on the `impl`'s method `merge_by` but not on the corresponding trait's method
[INFO] [stdout]    --> src/merge.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub trait Mergable<J, O>: Iterator + Sized 
[INFO] [stdout]     |           -------- in this trait
[INFO] [stdout] ...
[INFO] [stdout] 147 |     fn merge_by<F,L>(self, other: L, comparator: F) -> MergeBy<Self,J,F,O>
[INFO] [stdout]     |        ^^^^^^^^ this trait's method doesn't have the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/iter/traits/collect.rs:291:28
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] note: the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item` appears on the `impl`'s method `merge_by_key` but not on the corresponding trait's method
[INFO] [stdout]    --> src/merge.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub trait Mergable<J, O>: Iterator + Sized 
[INFO] [stdout]     |           -------- in this trait
[INFO] [stdout] ...
[INFO] [stdout] 152 |     fn merge_by_key<F,L,K>(self, other: L, key: F) -> MergeByKey<Self,J,F,O>
[INFO] [stdout]     |        ^^^^^^^^^^^^ this trait's method doesn't have the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Mergable`
[INFO] [stdout]    --> src/merge.rs:142:23
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub trait Mergable<J, O>: Iterator + Sized 
[INFO] [stdout]     |           -------- required by a bound in this trait
[INFO] [stdout] 142 |     where J: Iterator<Item = O>,
[INFO] [stdout]     |                       ^^^^^^^^ required by this bound in `Mergable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout]    --> src/merge.rs:169:26
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let curr = iter2.next();
[INFO] [stdout]     |                          ^^^^ cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout]    --> src/merge.rs:180:26
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let curr = iter2.next();
[INFO] [stdout]     |                          ^^^^ cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout]    --> src/merge.rs:191:26
[INFO] [stdout]     |
[INFO] [stdout] 191 |         let curr = iter2.next();
[INFO] [stdout]     |                          ^^^^ cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/iter/traits/collect.rs:291:28
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] note: the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item` appears on the `impl`'s method `merge` but not on the corresponding trait's method
[INFO] [stdout]    --> src/merge.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub trait Mergable<J, O>: Iterator + Sized 
[INFO] [stdout]     |           -------- in this trait
[INFO] [stdout] ...
[INFO] [stdout] 144 |     fn merge<L>(self, other: L) -> Merge<Self,J,O>
[INFO] [stdout]     |        ^^^^^ this trait's method doesn't have the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/iter/traits/collect.rs:291:28
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] note: the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item` appears on the `impl`'s method `merge_by` but not on the corresponding trait's method
[INFO] [stdout]    --> src/merge.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub trait Mergable<J, O>: Iterator + Sized 
[INFO] [stdout]     |           -------- in this trait
[INFO] [stdout] ...
[INFO] [stdout] 147 |     fn merge_by<F,L>(self, other: L, comparator: F) -> MergeBy<Self,J,F,O>
[INFO] [stdout]     |        ^^^^^^^^ this trait's method doesn't have the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout]    --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/iter/traits/collect.rs:291:28
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] note: the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item` appears on the `impl`'s method `merge_by_key` but not on the corresponding trait's method
[INFO] [stdout]    --> src/merge.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub trait Mergable<J, O>: Iterator + Sized 
[INFO] [stdout]     |           -------- in this trait
[INFO] [stdout] ...
[INFO] [stdout] 152 |     fn merge_by_key<F,L,K>(self, other: L, key: F) -> MergeByKey<Self,J,F,O>
[INFO] [stdout]     |        ^^^^^^^^^^^^ this trait's method doesn't have the requirement `<J as Iterator>::Item == <L as IntoIterator>::Item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Mergable`
[INFO] [stdout]    --> src/merge.rs:142:23
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub trait Mergable<J, O>: Iterator + Sized 
[INFO] [stdout]     |           -------- required by a bound in this trait
[INFO] [stdout] 142 |     where J: Iterator<Item = O>,
[INFO] [stdout]     |                       ^^^^^^^^ required by this bound in `Mergable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quasi_iter` (lib test) due to 7 previous errors
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout]    --> src/merge.rs:169:26
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let curr = iter2.next();
[INFO] [stdout]     |                          ^^^^ cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout]    --> src/merge.rs:180:26
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let curr = iter2.next();
[INFO] [stdout]     |                          ^^^^ cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout]    --> src/merge.rs:191:26
[INFO] [stdout]     |
[INFO] [stdout] 191 |         let curr = iter2.next();
[INFO] [stdout]     |                          ^^^^ cannot satisfy `<J as Iterator>::Item == O`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quasi_iter` (lib) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "a63383c75e49c523c733ea96a155be6228eb99d473e40885d37ae56357968689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a63383c75e49c523c733ea96a155be6228eb99d473e40885d37ae56357968689", kill_on_drop: false }`
[INFO] [stdout] a63383c75e49c523c733ea96a155be6228eb99d473e40885d37ae56357968689