[INFO] fetching crate vec_box 1.0.0...
[INFO] checking vec_box-1.0.0 against beta for pr-78714
[INFO] extracting crate vec_box 1.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate vec_box 1.0.0 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 vec_box 1.0.0
[INFO] finished tweaking crates.io crate vec_box 1.0.0
[INFO] tweaked toml for crates.io crate vec_box 1.0.0 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90527434a96ae9a17677eef34a1d62475ef00602886e4d84e3de85d1f819fa04
[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" "90527434a96ae9a17677eef34a1d62475ef00602886e4d84e3de85d1f819fa04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90527434a96ae9a17677eef34a1d62475ef00602886e4d84e3de85d1f819fa04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90527434a96ae9a17677eef34a1d62475ef00602886e4d84e3de85d1f819fa04", kill_on_drop: false }`
[INFO] [stdout] 90527434a96ae9a17677eef34a1d62475ef00602886e4d84e3de85d1f819fa04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10bc24ef7eb080dd42979c42eedd49012cd504766ea13b0de508316116df654e
[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" "10bc24ef7eb080dd42979c42eedd49012cd504766ea13b0de508316116df654e", kill_on_drop: false }`
[INFO] [stderr]     Checking vec_box v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:64:24
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let v: Vec<Box<C>> = vec_box![
[INFO] [stdout]    |                        ^ help: use `dyn`: `dyn C`
[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: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/test.rs:42:20
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let v: Vec<Box<C>> = vec_box![
[INFO] [stdout]    |                    ^ help: use `dyn`: `dyn C`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "10bc24ef7eb080dd42979c42eedd49012cd504766ea13b0de508316116df654e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10bc24ef7eb080dd42979c42eedd49012cd504766ea13b0de508316116df654e", kill_on_drop: false }`
[INFO] [stdout] 10bc24ef7eb080dd42979c42eedd49012cd504766ea13b0de508316116df654e