[INFO] fetching crate nalgebra 0.22.1...
[INFO] checking nalgebra-0.22.1 against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] extracting crate nalgebra 0.22.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate nalgebra 0.22.1 on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nalgebra 0.22.1
[INFO] finished tweaking crates.io crate nalgebra 0.22.1
[INFO] tweaked toml for crates.io crate nalgebra 0.22.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate nalgebra 0.22.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e6ea13f6f01c7b9dd394ceb74367aa9b4e9a39c2ee12b1723f708b420f48395
[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" "3e6ea13f6f01c7b9dd394ceb74367aa9b4e9a39c2ee12b1723f708b420f48395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e6ea13f6f01c7b9dd394ceb74367aa9b4e9a39c2ee12b1723f708b420f48395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e6ea13f6f01c7b9dd394ceb74367aa9b4e9a39c2ee12b1723f708b420f48395", kill_on_drop: false }`
[INFO] [stdout] 3e6ea13f6f01c7b9dd394ceb74367aa9b4e9a39c2ee12b1723f708b420f48395
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52e50424d859f9ffcb2f5d32cba5949f9dc3c559b284383171305b61db498988
[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" "52e50424d859f9ffcb2f5d32cba5949f9dc3c559b284383171305b61db498988", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking matrixcompare-core v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking num-integer v0.1.43
[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" "52e50424d859f9ffcb2f5d32cba5949f9dc3c559b284383171305b61db498988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52e50424d859f9ffcb2f5d32cba5949f9dc3c559b284383171305b61db498988", kill_on_drop: false }`
[INFO] [stdout] 52e50424d859f9ffcb2f5d32cba5949f9dc3c559b284383171305b61db498988