[INFO] fetching crate mvnc 0.3.0...
[INFO] checking mvnc-0.3.0 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate mvnc 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mvnc 0.3.0 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", 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] 5bf8b5701aa2ab53fc2c1ed449e78324a7bdd204536c473246bbc44382e7a9b2
[INFO] running `Command { std: "docker" "start" "-a" "5bf8b5701aa2ab53fc2c1ed449e78324a7bdd204536c473246bbc44382e7a9b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bf8b5701aa2ab53fc2c1ed449e78324a7bdd204536c473246bbc44382e7a9b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bf8b5701aa2ab53fc2c1ed449e78324a7bdd204536c473246bbc44382e7a9b2", kill_on_drop: false }`
[INFO] [stdout] 5bf8b5701aa2ab53fc2c1ed449e78324a7bdd204536c473246bbc44382e7a9b2
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "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] 2d5c047bff02b08dbfe3e57706d11e0654554b0f4dc9c1c12cb372219fde85d0
[INFO] running `Command { std: "docker" "start" "-a" "2d5c047bff02b08dbfe3e57706d11e0654554b0f4dc9c1c12cb372219fde85d0", kill_on_drop: false }`
[INFO] [stderr]     Checking mvnc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/graph.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 |     phantom: PhantomData<(&'a Device)>,
[INFO] [stdout]    |                          ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/graph.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 |     phantom: PhantomData<(&'a Device)>,
[INFO] [stdout]    |                          ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `half::consts`: all constants moved to associated constants of [`f16`](../struct.f16.html)
[INFO] [stdout]  --> examples/mnist.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use half::{consts, f16};
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `half::consts::MIN`: moved to [`f16::MIN`](../struct.f16.html#associatedconstant.MIN)
[INFO] [stdout]    --> examples/mnist.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut max = consts::MIN;
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "2d5c047bff02b08dbfe3e57706d11e0654554b0f4dc9c1c12cb372219fde85d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d5c047bff02b08dbfe3e57706d11e0654554b0f4dc9c1c12cb372219fde85d0", kill_on_drop: false }`
[INFO] [stdout] 2d5c047bff02b08dbfe3e57706d11e0654554b0f4dc9c1c12cb372219fde85d0