[INFO] crate dispatch 0.2.0 is already in cache
[INFO] checking dispatch-0.2.0 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate dispatch 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate dispatch 0.2.0 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 dispatch 0.2.0
[INFO] finished tweaking crates.io crate dispatch 0.2.0
[INFO] tweaked toml for crates.io crate dispatch 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate dispatch 0.2.0 already has a lockfile, it will not be regenerated
[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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d0bdb1b05662521fe0203b4e9db8a1af847b79e55fde11c79188654b479796ff
[INFO] running `Command { std: "docker" "start" "-a" "d0bdb1b05662521fe0203b4e9db8a1af847b79e55fde11c79188654b479796ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0bdb1b05662521fe0203b4e9db8a1af847b79e55fde11c79188654b479796ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0bdb1b05662521fe0203b4e9db8a1af847b79e55fde11c79188654b479796ff", kill_on_drop: false }`
[INFO] [stdout] d0bdb1b05662521fe0203b4e9db8a1af847b79e55fde11c79188654b479796ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 41dcd51ee118bf0a026ee7e98a32bbce30ebf3ccd206f3fd28095100b92ed302
[INFO] running `Command { std: "docker" "start" "-a" "41dcd51ee118bf0a026ee7e98a32bbce30ebf3ccd206f3fd28095100b92ed302", kill_on_drop: false }`
[INFO] [stderr]     Checking dispatch v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `std::boxed::Box<F>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:93:48
[INFO] [stdout]    |
[INFO] [stdout] 93 |     extern fn work_execute_closure<F>(context: Box<F>) where F: FnOnce() {
[INFO] [stdout]    |                                                ^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::boxed::Box<F>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:93:48
[INFO] [stdout]    |
[INFO] [stdout] 93 |     extern fn work_execute_closure<F>(context: Box<F>) where F: FnOnce() {
[INFO] [stdout]    |                                                ^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "41dcd51ee118bf0a026ee7e98a32bbce30ebf3ccd206f3fd28095100b92ed302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41dcd51ee118bf0a026ee7e98a32bbce30ebf3ccd206f3fd28095100b92ed302", kill_on_drop: false }`
[INFO] [stdout] 41dcd51ee118bf0a026ee7e98a32bbce30ebf3ccd206f3fd28095100b92ed302