[INFO] fetching crate qwant 1.0.1...
[INFO] checking qwant-1.0.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate qwant 1.0.1 into /workspace/builds/worker-3-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-3-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]     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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52004c90e017aba72da992190439822fee18ae9170e372b2160944dba5931eae
[INFO] running `Command { std: "docker" "start" "-a" "52004c90e017aba72da992190439822fee18ae9170e372b2160944dba5931eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52004c90e017aba72da992190439822fee18ae9170e372b2160944dba5931eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52004c90e017aba72da992190439822fee18ae9170e372b2160944dba5931eae", kill_on_drop: false }`
[INFO] [stdout] 52004c90e017aba72da992190439822fee18ae9170e372b2160944dba5931eae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 699c86bc5b1384c7101dec62993afff20eb59eb1a41f38f852d5af9a47756f06
[INFO] running `Command { std: "docker" "start" "-a" "699c86bc5b1384c7101dec62993afff20eb59eb1a41f38f852d5af9a47756f06", kill_on_drop: false }`
[INFO] [stderr]     Checking atools v0.1.6
[INFO] [stderr]     Checking 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] running `Command { std: "docker" "inspect" "699c86bc5b1384c7101dec62993afff20eb59eb1a41f38f852d5af9a47756f06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "699c86bc5b1384c7101dec62993afff20eb59eb1a41f38f852d5af9a47756f06", kill_on_drop: false }`
[INFO] [stdout] 699c86bc5b1384c7101dec62993afff20eb59eb1a41f38f852d5af9a47756f06