[INFO] fetching crate chain-reader 1.0.0...
[INFO] checking chain-reader-1.0.0 against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf
[INFO] extracting crate chain-reader 1.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate chain-reader 1.0.0
[INFO] finished tweaking crates.io crate chain-reader 1.0.0
[INFO] tweaked toml for crates.io crate chain-reader 1.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate chain-reader 1.0.0 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 crates.io crate chain-reader 1.0.0 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] b4b4f0752289d48acf176c526b7d70f2abc783b2858f01871f4e64d498f4bf12
[INFO] running `Command { std: "docker" "start" "-a" "b4b4f0752289d48acf176c526b7d70f2abc783b2858f01871f4e64d498f4bf12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4b4f0752289d48acf176c526b7d70f2abc783b2858f01871f4e64d498f4bf12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4b4f0752289d48acf176c526b7d70f2abc783b2858f01871f4e64d498f4bf12", kill_on_drop: false }`
[INFO] [stdout] b4b4f0752289d48acf176c526b7d70f2abc783b2858f01871f4e64d498f4bf12
[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] 1604575c7bccc13218f121026cdd17865ae225fe7b1ff9746402af305387f12b
[INFO] running `Command { std: "docker" "start" "-a" "1604575c7bccc13218f121026cdd17865ae225fe7b1ff9746402af305387f12b", kill_on_drop: false }`
[INFO] [stderr]     Checking chain-reader v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == R`
[INFO] [stdout]    --> src/lib.rs:196:54
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub fn push_iter<II: IntoIterator<IntoIter = I>>(&mut self, iter: II) {
[INFO] [stdout]     |                                                      ^^^^^^^^^ cannot satisfy `<I as Iterator>::Item == R`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `ChainReader`
[INFO] [stdout]    --> src/lib.rs:130:17
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub struct ChainReader<'a, R, F, I = std::iter::Empty<R>>
[INFO] [stdout]     |            ----------- required by a bound in this struct
[INFO] [stdout] ...
[INFO] [stdout] 130 |     I: Iterator<Item = R>,
[INFO] [stdout]     |                 ^^^^^^^^ required by this bound in `ChainReader`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == R`
[INFO] [stdout]    --> src/lib.rs:198:24
[INFO] [stdout]     |
[INFO] [stdout] 198 |             .push_back(ReaderSource::Multi(iter.into_iter()));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot satisfy `<I as Iterator>::Item == R`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `ReaderSource::Multi`
[INFO] [stdout]    --> src/lib.rs:55:17
[INFO] [stdout]     |
[INFO] [stdout]  55 |     I: Iterator<Item = R>,
[INFO] [stdout]     |                 ^^^^^^^^ required by this bound in `ReaderSource::Multi`
[INFO] [stdout] ...
[INFO] [stdout]  60 |     Multi(I),
[INFO] [stdout]     |     ----- required by a bound in this tuple variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == R`
[INFO] [stdout]    --> src/lib.rs:196:54
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub fn push_iter<II: IntoIterator<IntoIter = I>>(&mut self, iter: II) {
[INFO] [stdout]     |                                                      ^^^^^^^^^ cannot satisfy `<I as Iterator>::Item == R`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `ChainReader`
[INFO] [stdout]    --> src/lib.rs:130:17
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub struct ChainReader<'a, R, F, I = std::iter::Empty<R>>
[INFO] [stdout]     |            ----------- required by a bound in this struct
[INFO] [stdout] ...
[INFO] [stdout] 130 |     I: Iterator<Item = R>,
[INFO] [stdout]     |                 ^^^^^^^^ required by this bound in `ChainReader`
[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 `<I as Iterator>::Item == R`
[INFO] [stdout]    --> src/lib.rs:198:24
[INFO] [stdout]     |
[INFO] [stdout] 198 |             .push_back(ReaderSource::Multi(iter.into_iter()));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot satisfy `<I as Iterator>::Item == R`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `ReaderSource::Multi`
[INFO] [stdout]    --> src/lib.rs:55:17
[INFO] [stdout]     |
[INFO] [stdout]  55 |     I: Iterator<Item = R>,
[INFO] [stdout]     |                 ^^^^^^^^ required by this bound in `ReaderSource::Multi`
[INFO] [stdout] ...
[INFO] [stdout]  60 |     Multi(I),
[INFO] [stdout]     |     ----- required by a bound in this tuple variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chain-reader` (lib test) due to 2 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 `chain-reader` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1604575c7bccc13218f121026cdd17865ae225fe7b1ff9746402af305387f12b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1604575c7bccc13218f121026cdd17865ae225fe7b1ff9746402af305387f12b", kill_on_drop: false }`
[INFO] [stdout] 1604575c7bccc13218f121026cdd17865ae225fe7b1ff9746402af305387f12b