[INFO] fetching crate nalgebra 0.22.0...
[INFO] checking nalgebra-0.22.0 against try#5d9095c550fcec9e458ce8d6b0c04a217641db66 for pr-77153
[INFO] extracting crate nalgebra 0.22.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nalgebra 0.22.0 on toolchain 5d9095c550fcec9e458ce8d6b0c04a217641db66
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nalgebra 0.22.0
[INFO] finished tweaking crates.io crate nalgebra 0.22.0
[INFO] tweaked toml for crates.io crate nalgebra 0.22.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate nalgebra 0.22.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mint v0.5.5
[INFO] [stderr]   Downloaded matrixcompare-core v0.1.0
[INFO] [stderr]   Downloaded matrixcompare v0.1.3
[INFO] [stderr]   Downloaded paste-impl v0.1.15
[INFO] [stderr]   Downloaded paste v0.1.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea2f3aab5cde7e332355c76395994a1ef9eca04bbc49f223851f5b85f0996679
[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" "ea2f3aab5cde7e332355c76395994a1ef9eca04bbc49f223851f5b85f0996679", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea2f3aab5cde7e332355c76395994a1ef9eca04bbc49f223851f5b85f0996679", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea2f3aab5cde7e332355c76395994a1ef9eca04bbc49f223851f5b85f0996679", kill_on_drop: false }`
[INFO] [stdout] ea2f3aab5cde7e332355c76395994a1ef9eca04bbc49f223851f5b85f0996679
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 49aa04a4890bd9bc03e478dfd981cfec21d7d7feb6eaeb983aaf7a6a69397819
[INFO] running `Command { std: "docker" "start" "-a" "49aa04a4890bd9bc03e478dfd981cfec21d7d7feb6eaeb983aaf7a6a69397819", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking matrixcompare-core v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking matrixcompare v0.1.3
[INFO] [stdout] error[E0432]: unresolved import `num_traits::Float`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/matrixcompare-0.1.3/src/comparators.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | use num_traits::{Float, Num};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |                  |
[INFO] [stdout]   |                  no `Float` in the root
[INFO] [stdout]   |                  help: a similar name exists in the module (notice the capitalization): `float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `matrixcompare`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "49aa04a4890bd9bc03e478dfd981cfec21d7d7feb6eaeb983aaf7a6a69397819", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49aa04a4890bd9bc03e478dfd981cfec21d7d7feb6eaeb983aaf7a6a69397819", kill_on_drop: false }`
[INFO] [stdout] 49aa04a4890bd9bc03e478dfd981cfec21d7d7feb6eaeb983aaf7a6a69397819