[INFO] fetching crate myelin-engine 0.14.1... [INFO] testing myelin-engine-0.14.1 against 1.60.0 for beta-1.61-1 [INFO] extracting crate myelin-engine 0.14.1 into /workspace/builds/worker-16/source [INFO] validating manifest of crates.io crate myelin-engine 0.14.1 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-16/source/rust-toolchain [INFO] started tweaking crates.io crate myelin-engine 0.14.1 [INFO] finished tweaking crates.io crate myelin-engine 0.14.1 [INFO] tweaked toml for crates.io crate myelin-engine 0.14.1 written to /workspace/builds/worker-16/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded generational-arena v0.2.8 [INFO] [stderr] Downloaded ordermap v0.3.5 [INFO] [stderr] Downloaded mockiato-codegen v0.9.5 [INFO] [stderr] Downloaded nameof v1.2.2 [INFO] [stderr] Downloaded slotmap v0.3.2 [INFO] [stderr] Downloaded nearly_eq v0.2.4 [INFO] [stderr] Downloaded nalgebra v0.18.1 [INFO] [stderr] Downloaded mockiato v0.9.5 [INFO] [stderr] Downloaded nphysics2d v0.12.3 [INFO] [stderr] Downloaded myelin-geometry v2.4.2 [INFO] [stderr] Downloaded ncollide2d v0.20.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4e613f9e3eb245efcd73445ee77e690c165e1837349cdcc96c6e67dae066cc2b [INFO] running `Command { std: "docker" "start" "-a" "4e613f9e3eb245efcd73445ee77e690c165e1837349cdcc96c6e67dae066cc2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4e613f9e3eb245efcd73445ee77e690c165e1837349cdcc96c6e67dae066cc2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e613f9e3eb245efcd73445ee77e690c165e1837349cdcc96c6e67dae066cc2b", kill_on_drop: false }` [INFO] [stdout] 4e613f9e3eb245efcd73445ee77e690c165e1837349cdcc96c6e67dae066cc2b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] eabdae86951912c1a9b0999409e35a568c7c7b7434a118b208a85c502b91c6fe [INFO] running `Command { std: "docker" "start" "-a" "eabdae86951912c1a9b0999409e35a568c7c7b7434a118b208a85c502b91c6fe", kill_on_drop: false }` [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling libm v0.2.2 [INFO] [stderr] Compiling libc v0.2.123 [INFO] [stderr] Compiling proc-macro2 v1.0.37 [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling ordermap v0.3.5 [INFO] [stderr] Compiling fixedbitset v0.1.9 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling slotmap v0.3.2 [INFO] [stderr] Compiling downcast-rs v1.2.0 [INFO] [stderr] Compiling nameof v1.2.2 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling generational-arena v0.2.8 [INFO] [stderr] Compiling matrixmultiply v0.2.4 [INFO] [stderr] Compiling itertools v0.10.3 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling smallvec v0.6.14 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Compiling generic-array v0.12.4 [INFO] [stderr] Compiling approx v0.3.2 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling alga v0.9.3 [INFO] [stderr] Compiling nalgebra v0.18.1 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling ncollide2d v0.20.1 [INFO] [stderr] Compiling nphysics2d v0.12.3 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling myelin-geometry v2.4.2 [INFO] [stderr] Compiling myelin-engine v0.14.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | #![feature(specialization)] [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:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | #![feature(non_exhaustive)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute [INFO] [stdout] | [INFO] [stdout] = help: the feature `non_exhaustive` has been stable since 1.40.0 and no longer requires an attribute to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:7:1 [INFO] [stdout] | [INFO] [stdout] 7 | #![feature(box_syntax)] [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:8:1 [INFO] [stdout] | [INFO] [stdout] 8 | #![feature(trait_alias)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `myelin-engine` due to 5 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "eabdae86951912c1a9b0999409e35a568c7c7b7434a118b208a85c502b91c6fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eabdae86951912c1a9b0999409e35a568c7c7b7434a118b208a85c502b91c6fe", kill_on_drop: false }` [INFO] [stdout] eabdae86951912c1a9b0999409e35a568c7c7b7434a118b208a85c502b91c6fe