[INFO] fetching crate py_pathfinding 0.1.5...
[INFO] testing py_pathfinding-0.1.5 against 1.95.0 for beta-1.96-2
[INFO] extracting crate py_pathfinding 0.1.5 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate py_pathfinding 0.1.5
[INFO] finished tweaking crates.io crate py_pathfinding 0.1.5
[INFO] tweaked toml for crates.io crate py_pathfinding 0.1.5 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate py_pathfinding 0.1.5 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate py_pathfinding 0.1.5 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fnv v1.0.6
[INFO] [stderr]   Downloaded matrixmultiply v0.2.3
[INFO] [stderr]   Downloaded ndarray v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecbba78d9ca793f13779d12b32edefe84fa330ac6796177986cc347253b82166
[INFO] running `Command { std: "docker" "start" "-a" "ecbba78d9ca793f13779d12b32edefe84fa330ac6796177986cc347253b82166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecbba78d9ca793f13779d12b32edefe84fa330ac6796177986cc347253b82166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecbba78d9ca793f13779d12b32edefe84fa330ac6796177986cc347253b82166", kill_on_drop: false }`
[INFO] [stdout] ecbba78d9ca793f13779d12b32edefe84fa330ac6796177986cc347253b82166
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f693a5dd5b2fba94749b3394a9384adb2cfed507e3cf0c06b81328db6749430
[INFO] running `Command { std: "docker" "start" "-a" "1f693a5dd5b2fba94749b3394a9384adb2cfed507e3cf0c06b81328db6749430", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling py_pathfinding v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/algorithms/astar.rs:126:36
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn no_heuristic(_source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `py_pathfinding` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1f693a5dd5b2fba94749b3394a9384adb2cfed507e3cf0c06b81328db6749430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f693a5dd5b2fba94749b3394a9384adb2cfed507e3cf0c06b81328db6749430", kill_on_drop: false }`
[INFO] [stdout] 1f693a5dd5b2fba94749b3394a9384adb2cfed507e3cf0c06b81328db6749430
