[INFO] fetching crate qwant 1.0.1...
[INFO] testing qwant-1.0.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate qwant 1.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate qwant 1.0.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate qwant 1.0.1
[INFO] tweaked toml for crates.io crate qwant 1.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate qwant 1.0.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qwant 1.0.1 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atools v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b63ada875547e61d08f18037b43d8d83db1ad367f0f37c52569da393899260fb
[INFO] running `Command { std: "docker" "start" "-a" "b63ada875547e61d08f18037b43d8d83db1ad367f0f37c52569da393899260fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b63ada875547e61d08f18037b43d8d83db1ad367f0f37c52569da393899260fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b63ada875547e61d08f18037b43d8d83db1ad367f0f37c52569da393899260fb", kill_on_drop: false }`
[INFO] [stdout] b63ada875547e61d08f18037b43d8d83db1ad367f0f37c52569da393899260fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93e0105072664f32daa3f3165d624d89a1fa96a107609265caefabfcbb5c2955
[INFO] running `Command { std: "docker" "start" "-a" "93e0105072664f32daa3f3165d624d89a1fa96a107609265caefabfcbb5c2955", kill_on_drop: false }`
[INFO] [stderr]    Compiling atools v0.1.6
[INFO] [stderr]    Compiling qwant v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "93e0105072664f32daa3f3165d624d89a1fa96a107609265caefabfcbb5c2955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93e0105072664f32daa3f3165d624d89a1fa96a107609265caefabfcbb5c2955", kill_on_drop: false }`
[INFO] [stdout] 93e0105072664f32daa3f3165d624d89a1fa96a107609265caefabfcbb5c2955
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df9969430fe7bce2f28fae905190301d4d5262981767687194eaa2cb001780ef
[INFO] running `Command { std: "docker" "start" "-a" "df9969430fe7bce2f28fae905190301d4d5262981767687194eaa2cb001780ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling qwant v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `slice_as_chunks` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/quantize.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_chunks, slice_as_chunks)]
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `array_chunks`
[INFO] [stdout]  --> examples/quantize.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_chunks, slice_as_chunks)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `array_chunks` found for struct `Vec<u8>` in the current scope
[INFO] [stdout]   --> examples/quantize.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 39 | /             pixels
[INFO] [stdout] 40 | |                 .array_chunks::<4>()
[INFO] [stdout]    | |                 -^^^^^^^^^^^^ `Vec<u8>` is not an iterator
[INFO] [stdout]    | |_________________|
[INFO] [stdout]    |
[INFO] [stdout]    |
[INFO] [stdout] help: call `.into_iter()` first
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 .into_iter().array_chunks::<4>()
[INFO] [stdout]    |                  ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `array_chunks` found for struct `Vec<u8>` in the current scope
[INFO] [stdout]   --> examples/quantize.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 53 | /             pixels
[INFO] [stdout] 54 | |                 .array_chunks::<4>()
[INFO] [stdout]    | |                 -^^^^^^^^^^^^ `Vec<u8>` is not an iterator
[INFO] [stdout]    | |_________________|
[INFO] [stdout]    |
[INFO] [stdout]    |
[INFO] [stdout] help: call `.into_iter()` first
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 .into_iter().array_chunks::<4>()
[INFO] [stdout]    |                  ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `qwant` (example "quantize") due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "df9969430fe7bce2f28fae905190301d4d5262981767687194eaa2cb001780ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df9969430fe7bce2f28fae905190301d4d5262981767687194eaa2cb001780ef", kill_on_drop: false }`
[INFO] [stdout] df9969430fe7bce2f28fae905190301d4d5262981767687194eaa2cb001780ef