[INFO] cloning repository https://github.com/The0x539/flat_zip
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/The0x539/flat_zip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThe0x539%2Fflat_zip", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThe0x539%2Fflat_zip'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 588553ba8efe6b96d85117a3b291614b528c9cfc
[INFO] checking The0x539/flat_zip against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThe0x539%2Fflat_zip" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/The0x539/flat_zip
[INFO] finished tweaking git repo https://github.com/The0x539/flat_zip
[INFO] tweaked toml for git repo https://github.com/The0x539/flat_zip written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/The0x539/flat_zip 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/The0x539/flat_zip 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3fb26a5b0be68e7b245d0a49de672b10ce1a1d06942266846e652048b317477c
[INFO] running `Command { std: "docker" "start" "-a" "3fb26a5b0be68e7b245d0a49de672b10ce1a1d06942266846e652048b317477c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fb26a5b0be68e7b245d0a49de672b10ce1a1d06942266846e652048b317477c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fb26a5b0be68e7b245d0a49de672b10ce1a1d06942266846e652048b317477c", kill_on_drop: false }`
[INFO] [stdout] 3fb26a5b0be68e7b245d0a49de672b10ce1a1d06942266846e652048b317477c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 857727f88ef81674d44e4a9f36c18706a36b19a108084d8b0976bea5bf0c0a01
[INFO] running `Command { std: "docker" "start" "-a" "857727f88ef81674d44e4a9f36c18706a36b19a108084d8b0976bea5bf0c0a01", kill_on_drop: false }`
[INFO] [stderr]     Checking flat-zip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]   --> src/flat_zip.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     I: Iterator<Item = (K, G)>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `<I as Iterator>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]   --> src/groups.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |     I: Iterator<Item = (K, G)>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `<I as Iterator>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]   --> src/flat_zip.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     I: Iterator<Item = (K, G)>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `<I as Iterator>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]   --> src/groups.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |     I: Iterator<Item = (K, G)>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `<I as Iterator>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == (K, G)`
[INFO] [stdout]   --> src/flat_zip.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Self {
[INFO] [stdout]    |         ^^^^ cannot satisfy `<I as Iterator>::Item == (K, G)`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `FlatZip`
[INFO] [stdout]   --> src/flat_zip.rs:7:17
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub struct FlatZip<I, K, G>
[INFO] [stdout]    |            ------- required by a bound in this struct
[INFO] [stdout]  6 | where
[INFO] [stdout]  7 |     I: Iterator<Item = (K, G)>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^ required by this bound in `FlatZip`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == (K, G)`
[INFO] [stdout]   --> src/flat_zip.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Self {
[INFO] [stdout]    |         ^^^^ cannot satisfy `<I as Iterator>::Item == (K, G)`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `FlatZip`
[INFO] [stdout]   --> src/flat_zip.rs:7:17
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub struct FlatZip<I, K, G>
[INFO] [stdout]    |            ------- required by a bound in this struct
[INFO] [stdout]  6 | where
[INFO] [stdout]  7 |     I: Iterator<Item = (K, G)>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^ required by this bound in `FlatZip`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flat-zip` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flat-zip` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "857727f88ef81674d44e4a9f36c18706a36b19a108084d8b0976bea5bf0c0a01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "857727f88ef81674d44e4a9f36c18706a36b19a108084d8b0976bea5bf0c0a01", kill_on_drop: false }`
[INFO] [stdout] 857727f88ef81674d44e4a9f36c18706a36b19a108084d8b0976bea5bf0c0a01