[INFO] fetching crate object-rainbow 0.0.0-a.54...
[INFO] checking object-rainbow-0.0.0-a.54 against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf
[INFO] extracting crate object-rainbow 0.0.0-a.54 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate object-rainbow 0.0.0-a.54
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate object-rainbow 0.0.0-a.54
[INFO] tweaked toml for crates.io crate object-rainbow 0.0.0-a.54 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate object-rainbow 0.0.0-a.54 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 object-rainbow 0.0.0-a.54 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 39935e3e0bae4763d12e780c9015af8b898a14ecc4f43635aa8d1dd71ddec1d1
[INFO] running `Command { std: "docker" "start" "-a" "39935e3e0bae4763d12e780c9015af8b898a14ecc4f43635aa8d1dd71ddec1d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39935e3e0bae4763d12e780c9015af8b898a14ecc4f43635aa8d1dd71ddec1d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39935e3e0bae4763d12e780c9015af8b898a14ecc4f43635aa8d1dd71ddec1d1", kill_on_drop: false }`
[INFO] [stdout] 39935e3e0bae4763d12e780c9015af8b898a14ecc4f43635aa8d1dd71ddec1d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 29ce653359e74c6239ab68afc2a14cb1a57eca33f1a1110b93d202fc6fdacbf0
[INFO] running `Command { std: "docker" "start" "-a" "29ce653359e74c6239ab68afc2a14cb1a57eca33f1a1110b93d202fc6fdacbf0", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]     Checking piper v0.2.5
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking tracing-subscriber v0.3.22
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking event-listener v5.4.1
[INFO] [stderr]     Checking async-io v2.6.0
[INFO] [stderr]     Checking async-executor v1.14.0
[INFO] [stderr]     Checking thiserror v2.0.18
[INFO] [stderr]     Checking async-signal v0.2.13
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]     Checking async-lock v3.4.2
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking generic-array v1.3.5
[INFO] [stderr]     Checking blocking v1.6.2
[INFO] [stderr]     Checking async-process v2.5.0
[INFO] [stderr]     Checking async-net v2.0.0
[INFO] [stderr]     Checking async-fs v2.2.0
[INFO] [stderr]     Checking smol v2.0.2
[INFO] [stderr]     Checking crypto-common v0.1.7
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]    Compiling object-rainbow-derive v0.0.0-a.17
[INFO] [stderr]     Checking object-rainbow v0.0.0-a.54 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0221]: ambiguous associated type `N` in bounds of `N`
[INFO] [stdout]    --> src/impls/option.rs:183:29
[INFO] [stdout]     |
[INFO] [stdout] 183 |         input.parse_compare(N::N::USIZE, &N::niche())
[INFO] [stdout]     |                             ^^^^ ambiguous associated type `N`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/niche.rs:46:5
[INFO] [stdout]     |
[INFO] [stdout]  46 |     type N: ArrayLength;
[INFO] [stdout]     |     ------------------- ambiguous `N` from `niche::Niche`
[INFO] [stdout] ...
[INFO] [stdout]  57 |     type N: Unsigned;
[INFO] [stdout]     |     ---------------- ambiguous `N` from `niche::MaybeNiche`
[INFO] [stdout]     |
[INFO] [stdout] help: use fully-qualified syntax to disambiguate
[INFO] [stdout]     |
[INFO] [stdout] 183 -         input.parse_compare(N::N::USIZE, &N::niche())
[INFO] [stdout] 183 +         input.parse_compare(<N as niche::Niche>::N::USIZE, &N::niche())
[INFO] [stdout]     |
[INFO] [stdout] help: use fully-qualified syntax to disambiguate
[INFO] [stdout]     |
[INFO] [stdout] 183 -         input.parse_compare(N::N::USIZE, &N::niche())
[INFO] [stdout] 183 +         input.parse_compare(<N as niche::MaybeNiche>::N::USIZE, &N::niche())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0221]: ambiguous associated type `N` in bounds of `N`
[INFO] [stdout]    --> src/impls/option.rs:183:29
[INFO] [stdout]     |
[INFO] [stdout] 183 |         input.parse_compare(N::N::USIZE, &N::niche())
[INFO] [stdout]     |                             ^^^^ ambiguous associated type `N`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/niche.rs:46:5
[INFO] [stdout]     |
[INFO] [stdout]  46 |     type N: ArrayLength;
[INFO] [stdout]     |     ------------------- ambiguous `N` from `niche::Niche`
[INFO] [stdout] ...
[INFO] [stdout]  57 |     type N: Unsigned;
[INFO] [stdout]     |     ---------------- ambiguous `N` from `niche::MaybeNiche`
[INFO] [stdout]     |
[INFO] [stdout] help: use fully-qualified syntax to disambiguate
[INFO] [stdout]     |
[INFO] [stdout] 183 -         input.parse_compare(N::N::USIZE, &N::niche())
[INFO] [stdout] 183 +         input.parse_compare(<N as niche::Niche>::N::USIZE, &N::niche())
[INFO] [stdout]     |
[INFO] [stdout] help: use fully-qualified syntax to disambiguate
[INFO] [stdout]     |
[INFO] [stdout] 183 -         input.parse_compare(N::N::USIZE, &N::niche())
[INFO] [stdout] 183 +         input.parse_compare(<N as niche::MaybeNiche>::N::USIZE, &N::niche())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0221`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `object-rainbow` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0221`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `object-rainbow` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "29ce653359e74c6239ab68afc2a14cb1a57eca33f1a1110b93d202fc6fdacbf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29ce653359e74c6239ab68afc2a14cb1a57eca33f1a1110b93d202fc6fdacbf0", kill_on_drop: false }`
[INFO] [stdout] 29ce653359e74c6239ab68afc2a14cb1a57eca33f1a1110b93d202fc6fdacbf0