[INFO] cloning repository https://github.com/JojiiOfficial/utilsrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JojiiOfficial/utilsrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJojiiOfficial%2Futilsrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJojiiOfficial%2Futilsrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50a9fd0dc0ec0dcde02147edab27a78400c1806b
[INFO] checking JojiiOfficial/utilsrs against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf-spurious
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJojiiOfficial%2Futilsrs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JojiiOfficial/utilsrs
[INFO] finished tweaking git repo https://github.com/JojiiOfficial/utilsrs
[INFO] tweaked toml for git repo https://github.com/JojiiOfficial/utilsrs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JojiiOfficial/utilsrs 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] crate git repo https://github.com/JojiiOfficial/utilsrs 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" "+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] c913dce64c62ffaf5e66ec693c6706a3d0bd1e3343797a294e0641afb90ca735
[INFO] running `Command { std: "docker" "start" "-a" "c913dce64c62ffaf5e66ec693c6706a3d0bd1e3343797a294e0641afb90ca735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c913dce64c62ffaf5e66ec693c6706a3d0bd1e3343797a294e0641afb90ca735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c913dce64c62ffaf5e66ec693c6706a3d0bd1e3343797a294e0641afb90ca735", kill_on_drop: false }`
[INFO] [stdout] c913dce64c62ffaf5e66ec693c6706a3d0bd1e3343797a294e0641afb90ca735
[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] d4bd7440d456d48fb3230572f21a75d4b517490bace29dc5a2a01679c3f6510d
[INFO] running `Command { std: "docker" "start" "-a" "d4bd7440d456d48fb3230572f21a75d4b517490bace29dc5a2a01679c3f6510d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]     Checking utilsrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<R as Iterator>::Item == <IR as IntoIterator>::Item`
[INFO] [stdout]  --> /rustc/b6bca0d7327839b5e3f7a7779947cb9113d08917/library/core/src/iter/traits/collect.rs:291:28
[INFO] [stdout]   |
[INFO] [stdout]   = note: cannot satisfy `<R as Iterator>::Item == <IR as IntoIterator>::Item`
[INFO] [stdout] note: the requirement `<R as Iterator>::Item == <IR as IntoIterator>::Item` appears on the `impl`'s method `merge` but not on the corresponding trait's method
[INFO] [stdout]  --> src/itertools/merge.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait MergeExt<R, LI, RI, LF, RF, K>
[INFO] [stdout]   |           -------- in this trait
[INFO] [stdout] ...
[INFO] [stdout] 8 |     fn merge<IR>(self, other: IR, lf: LF, rf: RF) -> Merge<Self, R, K, LI, RI, LF, RF>
[INFO] [stdout]   |        ^^^^^ this trait's method doesn't have the requirement `<R as Iterator>::Item == <IR as IntoIterator>::Item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<R as Iterator>::Item == RI`
[INFO] [stdout]   --> src/itertools/merge.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         Merge::new(self, other, lf, rf)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot satisfy `<R as Iterator>::Item == RI`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `Merge::<L, R, K, LT, RT, LF, RF>::new`
[INFO] [stdout]   --> src/itertools/merge.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |     R: Iterator<Item = RT>,
[INFO] [stdout]    |                 ^^^^^^^^^ required by this bound in `Merge::<L, R, K, LT, RT, LF, RF>::new`
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn new<IL, IR>(l_iter: IL, r_iter: IR, lf: LF, rf: RF) -> Self
[INFO] [stdout]    |            --- required by a bound in this associated function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `utilsrs` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d4bd7440d456d48fb3230572f21a75d4b517490bace29dc5a2a01679c3f6510d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4bd7440d456d48fb3230572f21a75d4b517490bace29dc5a2a01679c3f6510d", kill_on_drop: false }`
[INFO] [stdout] d4bd7440d456d48fb3230572f21a75d4b517490bace29dc5a2a01679c3f6510d