[INFO] fetching crate memegeom 0.1.0...
[INFO] testing memegeom-0.1.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate memegeom 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate memegeom 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memegeom 0.1.0
[INFO] finished tweaking crates.io crate memegeom 0.1.0
[INFO] tweaked toml for crates.io crate memegeom 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded auto_ops v0.3.0
[INFO] [stderr]   Downloaded earcutr v0.2.0
[INFO] [stderr]   Downloaded rust-dense-bitset v0.1.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3a9a3dd54eb7a01b823405b61b471e74da46c5dbb5741b9855db8a8d1a09528
[INFO] running `Command { std: "docker" "start" "-a" "a3a9a3dd54eb7a01b823405b61b471e74da46c5dbb5741b9855db8a8d1a09528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3a9a3dd54eb7a01b823405b61b471e74da46c5dbb5741b9855db8a8d1a09528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3a9a3dd54eb7a01b823405b61b471e74da46c5dbb5741b9855db8a8d1a09528", kill_on_drop: false }`
[INFO] [stdout] a3a9a3dd54eb7a01b823405b61b471e74da46c5dbb5741b9855db8a8d1a09528
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7f348ab047acb0e465714e922b9d2ba27578aaf9fdde985eca41cb629260d58
[INFO] running `Command { std: "docker" "start" "-a" "e7f348ab047acb0e465714e922b9d2ba27578aaf9fdde985eca41cb629260d58", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling bytemuck v1.14.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling auto_ops v0.3.0
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling rust-dense-bitset v0.1.1
[INFO] [stderr]    Compiling safe_arch v0.7.1
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling wide v0.7.13
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling ordered-float v2.10.1
[INFO] [stderr]    Compiling earcutr v0.2.0
[INFO] [stderr]    Compiling simba v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling nalgebra v0.30.1
[INFO] [stderr]    Compiling memegeom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | #![feature(array_chunks, array_windows, drain_filter)]
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 | #![feature(array_chunks, array_windows, drain_filter)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:40:41
[INFO] [stdout]    |
[INFO] [stdout] 40 | #![feature(array_chunks, array_windows, drain_filter)]
[INFO] [stdout]    |                                         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]   --> src/lib.rs:40:41
[INFO] [stdout]    |
[INFO] [stdout] 40 | #![feature(array_chunks, array_windows, drain_filter)]
[INFO] [stdout]    |                                         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `Vec<IntersectData>` in the current scope
[INFO] [stdout]    --> src/geom/qt/quadtree.rs:361:39
[INFO] [stdout]     |
[INFO] [stdout] 361 |             self.nodes[idx].intersect.drain_filter(|v| v.tests >= TEST_THRESHOLD).collect();
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ method not found in `Vec<IntersectData>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `memegeom` (lib) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "e7f348ab047acb0e465714e922b9d2ba27578aaf9fdde985eca41cb629260d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f348ab047acb0e465714e922b9d2ba27578aaf9fdde985eca41cb629260d58", kill_on_drop: false }`
[INFO] [stdout] e7f348ab047acb0e465714e922b9d2ba27578aaf9fdde985eca41cb629260d58
