[INFO] fetching crate flow-free 0.0.0...
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] crate flow-free 0.0.0 is already in cache
[INFO] checking flow-free-0.0.0 against try#ff47dd48ed0d02534055e0033cf766ce528f8ebc for pr-99447
[INFO] extracting crate flow-free 0.0.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate flow-free 0.0.0 on toolchain ff47dd48ed0d02534055e0033cf766ce528f8ebc
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff47dd48ed0d02534055e0033cf766ce528f8ebc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flow-free 0.0.0
[INFO] finished tweaking crates.io crate flow-free 0.0.0
[INFO] tweaked toml for crates.io crate flow-free 0.0.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff47dd48ed0d02534055e0033cf766ce528f8ebc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff47dd48ed0d02534055e0033cf766ce528f8ebc" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+ff47dd48ed0d02534055e0033cf766ce528f8ebc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a79c6d5f1acc3f78cb6907095a7ed352a9cb1c8050c74dbabfe3405461a7a257
[INFO] running `Command { std: "docker" "start" "-a" "a79c6d5f1acc3f78cb6907095a7ed352a9cb1c8050c74dbabfe3405461a7a257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a79c6d5f1acc3f78cb6907095a7ed352a9cb1c8050c74dbabfe3405461a7a257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a79c6d5f1acc3f78cb6907095a7ed352a9cb1c8050c74dbabfe3405461a7a257", kill_on_drop: false }`
[INFO] [stdout] a79c6d5f1acc3f78cb6907095a7ed352a9cb1c8050c74dbabfe3405461a7a257
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+ff47dd48ed0d02534055e0033cf766ce528f8ebc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2857f067b6ce844f281ed2717f6dec3580a558e0071d8d5c90a7a22977623d4b
[INFO] running `Command { std: "docker" "start" "-a" "2857f067b6ce844f281ed2717f6dec3580a558e0071d8d5c90a7a22977623d4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking rs-graph v0.20.1
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stdout] error: unexpected token: crate
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndarray-0.15.6/src/slice.rs:845:44
[INFO] [stdout]     |
[INFO] [stdout] 845 |     (@parse ::core::marker::PhantomData::<$crate::Ix0>, ::core::marker::PhantomData::<$crate::Ix0>, []) => {
[INFO] [stdout]     |                                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: `$$`, `$crate`, and meta-variable expressions are not allowed inside macro parameter definitions
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndarray-0.15.6/src/slice.rs:845:44
[INFO] [stdout]     |
[INFO] [stdout] 845 |     (@parse ::core::marker::PhantomData::<$crate::Ix0>, ::core::marker::PhantomData::<$crate::Ix0>, []) => {
[INFO] [stdout]     |                                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected token: crate
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndarray-0.15.6/src/slice.rs:845:88
[INFO] [stdout]     |
[INFO] [stdout] 845 |     (@parse ::core::marker::PhantomData::<$crate::Ix0>, ::core::marker::PhantomData::<$crate::Ix0>, []) => {
[INFO] [stdout]     |                                                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: `$$`, `$crate`, and meta-variable expressions are not allowed inside macro parameter definitions
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndarray-0.15.6/src/slice.rs:845:88
[INFO] [stdout]     |
[INFO] [stdout] 845 |     (@parse ::core::marker::PhantomData::<$crate::Ix0>, ::core::marker::PhantomData::<$crate::Ix0>, []) => {
[INFO] [stdout]     |                                                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ndarray` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2857f067b6ce844f281ed2717f6dec3580a558e0071d8d5c90a7a22977623d4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2857f067b6ce844f281ed2717f6dec3580a558e0071d8d5c90a7a22977623d4b", kill_on_drop: false }`
[INFO] [stdout] 2857f067b6ce844f281ed2717f6dec3580a558e0071d8d5c90a7a22977623d4b