[INFO] crate polarization 0.2.0 is already in cache
[INFO] checking polarization-0.2.0 against master#446e5e57b667c841ba3ebb4b41b44fb98bd3af4b for pr-65294
[INFO] extracting crate polarization 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate polarization 0.2.0 on toolchain 446e5e57b667c841ba3ebb4b41b44fb98bd3af4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate polarization 0.2.0
[INFO] finished tweaking crates.io crate polarization 0.2.0
[INFO] tweaked toml for crates.io crate polarization 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a91ab849dbf2aee0bd5d1fac1bbafefe632633e9a95be2320774ddb838281602
[INFO] running `"docker" "start" "-a" "a91ab849dbf2aee0bd5d1fac1bbafefe632633e9a95be2320774ddb838281602"`
[INFO] [stderr]     Checking assert_approx_eq v1.0.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking generic-array v0.11.1
[INFO] [stderr]     Checking num-complex v0.2.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking num-bigint v0.2.3
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking alga v0.7.2
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking nalgebra v0.16.14
[INFO] [stderr]     Checking polarization v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/jones/common.rs:49:32
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/jones/common.rs:49:32
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.52s
[INFO] running `"docker" "inspect" "a91ab849dbf2aee0bd5d1fac1bbafefe632633e9a95be2320774ddb838281602"`
[INFO] running `"docker" "rm" "-f" "a91ab849dbf2aee0bd5d1fac1bbafefe632633e9a95be2320774ddb838281602"`
[INFO] [stdout] a91ab849dbf2aee0bd5d1fac1bbafefe632633e9a95be2320774ddb838281602