[INFO] fetching crate array_builder 0.1.4...
[INFO] testing array_builder-0.1.4 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate array_builder 0.1.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate array_builder 0.1.4
[INFO] finished tweaking crates.io crate array_builder 0.1.4
[INFO] tweaked toml for crates.io crate array_builder 0.1.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate array_builder 0.1.4 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf70b5fd405daa14835613c400df0d390ef67084011459e6b8f2f3bd7987f241
[INFO] running `Command { std: "docker" "start" "-a" "bf70b5fd405daa14835613c400df0d390ef67084011459e6b8f2f3bd7987f241", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf70b5fd405daa14835613c400df0d390ef67084011459e6b8f2f3bd7987f241", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf70b5fd405daa14835613c400df0d390ef67084011459e6b8f2f3bd7987f241", kill_on_drop: false }`
[INFO] [stdout] bf70b5fd405daa14835613c400df0d390ef67084011459e6b8f2f3bd7987f241
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b81aefd99a390d7534bd1e37e492de31a5494ef6df8dbd9a39ef3d1d7c6f6f1f
[INFO] running `Command { std: "docker" "start" "-a" "b81aefd99a390d7534bd1e37e492de31a5494ef6df8dbd9a39ef3d1d7c6f6f1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling array_builder v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "b81aefd99a390d7534bd1e37e492de31a5494ef6df8dbd9a39ef3d1d7c6f6f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b81aefd99a390d7534bd1e37e492de31a5494ef6df8dbd9a39ef3d1d7c6f6f1f", kill_on_drop: false }`
[INFO] [stdout] b81aefd99a390d7534bd1e37e492de31a5494ef6df8dbd9a39ef3d1d7c6f6f1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79764537ac070b3cf9f345e9ec9feeb071bc7d1dc71e2397a5ad8a41a2d78528
[INFO] running `Command { std: "docker" "start" "-a" "79764537ac070b3cf9f345e9ec9feeb071bc7d1dc71e2397a5ad8a41a2d78528", kill_on_drop: false }`
[INFO] [stderr]    Compiling array_builder v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "79764537ac070b3cf9f345e9ec9feeb071bc7d1dc71e2397a5ad8a41a2d78528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79764537ac070b3cf9f345e9ec9feeb071bc7d1dc71e2397a5ad8a41a2d78528", kill_on_drop: false }`
[INFO] [stdout] 79764537ac070b3cf9f345e9ec9feeb071bc7d1dc71e2397a5ad8a41a2d78528
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a8c09693efc6ceac5efa12190812d640c45e5336a29d85ef86e5caa4a2b836ab
[INFO] running `Command { std: "docker" "start" "-a" "a8c09693efc6ceac5efa12190812d640c45e5336a29d85ef86e5caa4a2b836ab", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/array_builder-40812c514f92f347)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests array_builder
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - ArrayBuilder<T,N>::take (line 327) ... ok
[INFO] [stdout] test src/lib.rs - (line 46) ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 55) ... ok
[INFO] [stdout] test src/lib.rs - (line 66) ... ok
[INFO] [stdout] test src/lib.rs - ArrayBuilder (line 92) ... ok
[INFO] [stdout] test src/lib.rs - (line 4) ... ok
[INFO] [stdout] test src/lib.rs - ArrayBuilder<T,N>::pop (line 281) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 22) stdout ----
[INFO] [stdout] warning: the feature `maybe_uninit_extra` has been stable since 1.60.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:23:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(maybe_uninit_extra)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `maybe_uninit_uninit_array`
[INFO] [stdout]  --> src/lib.rs:22:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(maybe_uninit_uninit_array)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `uninit_array` found for union `MaybeUninit` in the current scope
[INFO] [stdout]  --> src/lib.rs:27:57
[INFO] [stdout]   |
[INFO] [stdout] 7 | let mut uninit: [MaybeUninit<String>; 8] = MaybeUninit::uninit_array();
[INFO] [stdout]   |                                                         ^^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>`
[INFO] [stdout]   |
[INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions:
[INFO] [stdout]       MaybeUninit::<T>::new
[INFO] [stdout]       MaybeUninit::<T>::uninit
[INFO] [stdout]       MaybeUninit::<T>::zeroed
[INFO] [stdout]  --> /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/mem/maybe_uninit.rs:307:5
[INFO] [stdout] help: there is an associated function `uninit` with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 7 - let mut uninit: [MaybeUninit<String>; 8] = MaybeUninit::uninit_array();
[INFO] [stdout] 7 + let mut uninit: [MaybeUninit<String>; 8] = MaybeUninit::uninit();
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 22)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.74s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "a8c09693efc6ceac5efa12190812d640c45e5336a29d85ef86e5caa4a2b836ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8c09693efc6ceac5efa12190812d640c45e5336a29d85ef86e5caa4a2b836ab", kill_on_drop: false }`
[INFO] [stdout] a8c09693efc6ceac5efa12190812d640c45e5336a29d85ef86e5caa4a2b836ab
