[INFO] fetching crate mvnc 0.3.0...
[INFO] checking mvnc-0.3.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate mvnc 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate mvnc 0.3.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mvnc 0.3.0
[INFO] finished tweaking crates.io crate mvnc 0.3.0
[INFO] tweaked toml for crates.io crate mvnc 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 670941b384ce3219f9e429f26e88b878407d25de95d393f84d2595c0e1378877
[INFO] running `"docker" "start" "-a" "670941b384ce3219f9e429f26e88b878407d25de95d393f84d2595c0e1378877"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking half v1.5.0
[INFO] [stderr]     Checking mvnc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/graph.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |     phantom: PhantomData<(&'a Device)>,
[INFO] [stderr]    |                          ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/graph.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |     phantom: PhantomData<(&'a Device)>,
[INFO] [stderr]    |                          ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'half::consts': all constants moved to associated constants of [`f16`](../struct.f16.html)
[INFO] [stderr]  --> examples/mnist.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | use half::{consts, f16};
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'half::consts::MIN': moved to [`f16::MIN`](../struct.f16.html#associatedconstant.MIN)
[INFO] [stderr]    --> examples/mnist.rs:105:19
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let mut max = consts::MIN;
[INFO] [stderr]     |                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `"docker" "inspect" "670941b384ce3219f9e429f26e88b878407d25de95d393f84d2595c0e1378877"`
[INFO] running `"docker" "rm" "-f" "670941b384ce3219f9e429f26e88b878407d25de95d393f84d2595c0e1378877"`
[INFO] [stdout] 670941b384ce3219f9e429f26e88b878407d25de95d393f84d2595c0e1378877