[INFO] fetching crate tropical_algebra 0.0.4...
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] crate tropical_algebra 0.0.4 is already in cache
[INFO] checking tropical_algebra-0.0.4 against try#ff47dd48ed0d02534055e0033cf766ce528f8ebc for pr-99447
[INFO] extracting crate tropical_algebra 0.0.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate tropical_algebra 0.0.4 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 tropical_algebra 0.0.4
[INFO] finished tweaking crates.io crate tropical_algebra 0.0.4
[INFO] tweaked toml for crates.io crate tropical_algebra 0.0.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate tropical_algebra 0.0.4 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] e6febbad259148f859db4da5dff0caf5d110beb5ed2f72d12ec54998f8b34c76
[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" "e6febbad259148f859db4da5dff0caf5d110beb5ed2f72d12ec54998f8b34c76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6febbad259148f859db4da5dff0caf5d110beb5ed2f72d12ec54998f8b34c76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6febbad259148f859db4da5dff0caf5d110beb5ed2f72d12ec54998f8b34c76", kill_on_drop: false }`
[INFO] [stdout] e6febbad259148f859db4da5dff0caf5d110beb5ed2f72d12ec54998f8b34c76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] d1cab88887468b32e2b4e18e028a1e7b47b4c4e93de0f42b32cd20b823614279
[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" "d1cab88887468b32e2b4e18e028a1e7b47b4c4e93de0f42b32cd20b823614279", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking auto_ops v0.3.0
[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]     Checking num-complex v0.4.1
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stdout] error: unexpected token: crate
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndarray-0.15.4/src/slice.rs:845:43
[INFO] [stdout]     |
[INFO] [stdout] 845 |     (@parse ::std::marker::PhantomData::<$crate::Ix0>, ::std::marker::PhantomData::<$crate::Ix0>, []) => {
[INFO] [stdout]     |                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: `$$`, `$crate`, and meta-variable expressions are not allowed inside macro parameter definitions
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndarray-0.15.4/src/slice.rs:845:43
[INFO] [stdout]     |
[INFO] [stdout] 845 |     (@parse ::std::marker::PhantomData::<$crate::Ix0>, ::std::marker::PhantomData::<$crate::Ix0>, []) => {
[INFO] [stdout]     |                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected token: crate
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndarray-0.15.4/src/slice.rs:845:86
[INFO] [stdout]     |
[INFO] [stdout] 845 |     (@parse ::std::marker::PhantomData::<$crate::Ix0>, ::std::marker::PhantomData::<$crate::Ix0>, []) => {
[INFO] [stdout]     |                                                                                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: `$$`, `$crate`, and meta-variable expressions are not allowed inside macro parameter definitions
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndarray-0.15.4/src/slice.rs:845:86
[INFO] [stdout]     |
[INFO] [stdout] 845 |     (@parse ::std::marker::PhantomData::<$crate::Ix0>, ::std::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] running `Command { std: "docker" "inspect" "d1cab88887468b32e2b4e18e028a1e7b47b4c4e93de0f42b32cd20b823614279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1cab88887468b32e2b4e18e028a1e7b47b4c4e93de0f42b32cd20b823614279", kill_on_drop: false }`
[INFO] [stdout] d1cab88887468b32e2b4e18e028a1e7b47b4c4e93de0f42b32cd20b823614279