[INFO] fetching crate signalo_traits 0.4.0...
[INFO] checking signalo_traits-0.4.0 against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] extracting crate signalo_traits 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate signalo_traits 0.4.0 on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate signalo_traits 0.4.0
[INFO] finished tweaking crates.io crate signalo_traits 0.4.0
[INFO] tweaked toml for crates.io crate signalo_traits 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "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] b1fa518a4580259d6dc99d79d273a9b6575f0b4c286e1dac77e3a3a8c3f86802
[INFO] running `Command { std: "docker" "start" "-a" "b1fa518a4580259d6dc99d79d273a9b6575f0b4c286e1dac77e3a3a8c3f86802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1fa518a4580259d6dc99d79d273a9b6575f0b4c286e1dac77e3a3a8c3f86802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1fa518a4580259d6dc99d79d273a9b6575f0b4c286e1dac77e3a3a8c3f86802", kill_on_drop: false }`
[INFO] [stdout] b1fa518a4580259d6dc99d79d273a9b6575f0b4c286e1dac77e3a3a8c3f86802
[INFO] running `Command { std: "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebb7c27ecf7bd1cd8fa575a2f4abb12c562169892d332b559ec947a3f355f27c
[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" "ebb7c27ecf7bd1cd8fa575a2f4abb12c562169892d332b559ec947a3f355f27c", kill_on_drop: false }`
[INFO] [stderr]     Checking signalo_traits v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:107:49
[INFO] [stdout]     |
[INFO] [stdout] 107 |             let owned_self = ptr::replace(self, mem::uninitialized());
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:107:49
[INFO] [stdout]     |
[INFO] [stdout] 107 |             let owned_self = ptr::replace(self, mem::uninitialized());
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "ebb7c27ecf7bd1cd8fa575a2f4abb12c562169892d332b559ec947a3f355f27c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebb7c27ecf7bd1cd8fa575a2f4abb12c562169892d332b559ec947a3f355f27c", kill_on_drop: false }`
[INFO] [stdout] ebb7c27ecf7bd1cd8fa575a2f4abb12c562169892d332b559ec947a3f355f27c