[INFO] fetching crate ice-threads 0.1.0...
[INFO] checking ice-threads-0.1.0 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate ice-threads 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ice-threads 0.1.0 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ice-threads 0.1.0
[INFO] finished tweaking crates.io crate ice-threads 0.1.0
[INFO] tweaked toml for crates.io crate ice-threads 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "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" "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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65b956e58eddb457b430f1b383ffa9852cd19ab57060c41bc1e66e02842d59c8
[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" "65b956e58eddb457b430f1b383ffa9852cd19ab57060c41bc1e66e02842d59c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65b956e58eddb457b430f1b383ffa9852cd19ab57060c41bc1e66e02842d59c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65b956e58eddb457b430f1b383ffa9852cd19ab57060c41bc1e66e02842d59c8", kill_on_drop: false }`
[INFO] [stdout] 65b956e58eddb457b430f1b383ffa9852cd19ab57060c41bc1e66e02842d59c8
[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" "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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62fc7616cbe7da87052d6ed70a5e2e3feb9179579715b56c46bd20d74dfaf85e
[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" "62fc7616cbe7da87052d6ed70a5e2e3feb9179579715b56c46bd20d74dfaf85e", kill_on_drop: false }`
[INFO] [stderr]     Checking ice-threads v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/ice.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) struct Ice(Box<Meltable + Send + 'static>);
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Meltable + Send + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/ice.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) struct Ice(Box<Meltable + Send + 'static>);
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Meltable + Send + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` 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 0.34s
[INFO] running `Command { std: "docker" "inspect" "62fc7616cbe7da87052d6ed70a5e2e3feb9179579715b56c46bd20d74dfaf85e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62fc7616cbe7da87052d6ed70a5e2e3feb9179579715b56c46bd20d74dfaf85e", kill_on_drop: false }`
[INFO] [stdout] 62fc7616cbe7da87052d6ed70a5e2e3feb9179579715b56c46bd20d74dfaf85e