[INFO] fetching crate ice-threads 0.1.0...
[INFO] checking ice-threads-0.1.0 against beta for pr-78714
[INFO] extracting crate ice-threads 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ice-threads 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13d4e9d93a85ed347ada9c01e7756d80706ba8f94d49162d47c5117888fee92c
[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" "13d4e9d93a85ed347ada9c01e7756d80706ba8f94d49162d47c5117888fee92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13d4e9d93a85ed347ada9c01e7756d80706ba8f94d49162d47c5117888fee92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13d4e9d93a85ed347ada9c01e7756d80706ba8f94d49162d47c5117888fee92c", kill_on_drop: false }`
[INFO] [stdout] 13d4e9d93a85ed347ada9c01e7756d80706ba8f94d49162d47c5117888fee92c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b5f464410175c96520ba339e04629798f089a1b988d1f3e8e2ad2dda2007170
[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" "6b5f464410175c96520ba339e04629798f089a1b988d1f3e8e2ad2dda2007170", 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" "6b5f464410175c96520ba339e04629798f089a1b988d1f3e8e2ad2dda2007170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b5f464410175c96520ba339e04629798f089a1b988d1f3e8e2ad2dda2007170", kill_on_drop: false }`
[INFO] [stdout] 6b5f464410175c96520ba339e04629798f089a1b988d1f3e8e2ad2dda2007170