[INFO] fetching crate iterative_methods 0.2.1...
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] crate iterative_methods 0.2.1 is already in cache
[INFO] checking iterative_methods-0.2.1 against try#ff47dd48ed0d02534055e0033cf766ce528f8ebc for pr-99447
[INFO] extracting crate iterative_methods 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate iterative_methods 0.2.1 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 iterative_methods 0.2.1
[INFO] finished tweaking crates.io crate iterative_methods 0.2.1
[INFO] tweaked toml for crates.io crate iterative_methods 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate iterative_methods 0.2.1 already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+ff47dd48ed0d02534055e0033cf766ce528f8ebc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 622cd0070695b456fa1fc019de4e87f261ec87cc384c13860a29b8f1c1bceb8a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "622cd0070695b456fa1fc019de4e87f261ec87cc384c13860a29b8f1c1bceb8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "622cd0070695b456fa1fc019de4e87f261ec87cc384c13860a29b8f1c1bceb8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "622cd0070695b456fa1fc019de4e87f261ec87cc384c13860a29b8f1c1bceb8a", kill_on_drop: false }`
[INFO] [stdout] 622cd0070695b456fa1fc019de4e87f261ec87cc384c13860a29b8f1c1bceb8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+ff47dd48ed0d02534055e0033cf766ce528f8ebc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9002e2296747707366616bf3735ff650c9a30f6eb165b845776c34158d0110c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f9002e2296747707366616bf3735ff650c9a30f6eb165b845776c34158d0110c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking streaming-iterator v0.1.5
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand_pcg v0.3.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stdout] error: unexpected token: crate
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndarray-0.13.1/src/slice.rs:609:43
[INFO] [stdout]     |
[INFO] [stdout] 609 |     (@parse ::std::marker::PhantomData::<$crate::Ix0>, []) => {
[INFO] [stdout]     |                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: `$$`, `$crate`, and meta-variable expressions are not allowed inside macro parameter definitions
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndarray-0.13.1/src/slice.rs:609:43
[INFO] [stdout]     |
[INFO] [stdout] 609 |     (@parse ::std::marker::PhantomData::<$crate::Ix0>, []) => {
[INFO] [stdout]     |                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_distr v0.4.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking nalgebra v0.19.0
[INFO] [stderr]     Checking quickcheck v1.0.1
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ndarray` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f9002e2296747707366616bf3735ff650c9a30f6eb165b845776c34158d0110c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9002e2296747707366616bf3735ff650c9a30f6eb165b845776c34158d0110c", kill_on_drop: false }`
[INFO] [stdout] f9002e2296747707366616bf3735ff650c9a30f6eb165b845776c34158d0110c