[INFO] fetching crate x3 0.3.1...
[INFO] checking x3-0.3.1 against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf
[INFO] extracting crate x3 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate x3 0.3.1
[INFO] finished tweaking crates.io crate x3 0.3.1
[INFO] tweaked toml for crates.io crate x3 0.3.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate x3 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] crate crates.io crate x3 0.3.1 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 18da94e4420ba32a2d20b6127c3ea92afd353de787713f39352b5721a9c3ffb2
[INFO] running `Command { std: "docker" "start" "-a" "18da94e4420ba32a2d20b6127c3ea92afd353de787713f39352b5721a9c3ffb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18da94e4420ba32a2d20b6127c3ea92afd353de787713f39352b5721a9c3ffb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18da94e4420ba32a2d20b6127c3ea92afd353de787713f39352b5721a9c3ffb2", kill_on_drop: false }`
[INFO] [stdout] 18da94e4420ba32a2d20b6127c3ea92afd353de787713f39352b5721a9c3ffb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e541171fbe49bd39bc0ea718afaa8a5f71e1248dac682d983321a541ed05970e
[INFO] running `Command { std: "docker" "start" "-a" "e541171fbe49bd39bc0ea718afaa8a5f71e1248dac682d983321a541ed05970e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking quick-xml v0.38.3
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking x3 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]   --> src/x3.rs:59:15
[INFO] [stdout]    |
[INFO] [stdout] 59 |   I: Iterator<Item = i16>,
[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 == i16`
[INFO] [stdout]   --> src/x3.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     IterChannel {
[INFO] [stdout]    |     ^^^^^^^^^^^ cannot satisfy `<I as Iterator>::Item == i16`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `IterChannel`
[INFO] [stdout]   --> src/x3.rs:49:15
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct IterChannel<I>
[INFO] [stdout]    |            ----------- required by a bound in this struct
[INFO] [stdout] 48 | where
[INFO] [stdout] 49 |   I: Iterator<Item = i16>,
[INFO] [stdout]    |               ^^^^^^^^^^ required by this bound in `IterChannel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]   --> src/x3.rs:59:15
[INFO] [stdout]    |
[INFO] [stdout] 59 |   I: Iterator<Item = i16>,
[INFO] [stdout]    |               ^^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `<I as Iterator>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x3` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == i16`
[INFO] [stdout]   --> src/x3.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     IterChannel {
[INFO] [stdout]    |     ^^^^^^^^^^^ cannot satisfy `<I as Iterator>::Item == i16`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `IterChannel`
[INFO] [stdout]   --> src/x3.rs:49:15
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct IterChannel<I>
[INFO] [stdout]    |            ----------- required by a bound in this struct
[INFO] [stdout] 48 | where
[INFO] [stdout] 49 |   I: Iterator<Item = i16>,
[INFO] [stdout]    |               ^^^^^^^^^^ required by this bound in `IterChannel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x3` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e541171fbe49bd39bc0ea718afaa8a5f71e1248dac682d983321a541ed05970e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e541171fbe49bd39bc0ea718afaa8a5f71e1248dac682d983321a541ed05970e", kill_on_drop: false }`
[INFO] [stdout] e541171fbe49bd39bc0ea718afaa8a5f71e1248dac682d983321a541ed05970e