[INFO] fetching crate ceviche 0.6.1...
[INFO] checking ceviche-0.6.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate ceviche 0.6.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ceviche 0.6.1
[INFO] finished tweaking crates.io crate ceviche 0.6.1
[INFO] tweaked toml for crates.io crate ceviche 0.6.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ceviche 0.6.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 58 packages to latest compatible versions
[INFO] [stderr]       Adding core-foundation v0.9.4 (available: v0.10.1)
[INFO] [stderr]       Adding system-configuration-sys v0.5.0 (available: v0.6.0)
[INFO] [stderr]       Adding widestring v0.4.3 (available: v1.2.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.60.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 643f846d5ef2896c1992ed3fc66d7312abd1fd8ac7bd7800d6b398913a98cc41
[INFO] running `Command { std: "docker" "start" "-a" "643f846d5ef2896c1992ed3fc66d7312abd1fd8ac7bd7800d6b398913a98cc41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "643f846d5ef2896c1992ed3fc66d7312abd1fd8ac7bd7800d6b398913a98cc41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "643f846d5ef2896c1992ed3fc66d7312abd1fd8ac7bd7800d6b398913a98cc41", kill_on_drop: false }`
[INFO] [stdout] 643f846d5ef2896c1992ed3fc66d7312abd1fd8ac7bd7800d6b398913a98cc41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a24a1564aec2b8ee1b538b113aea093d37a4692cd80b5348cb23e35bc5b47bf
[INFO] running `Command { std: "docker" "start" "-a" "8a24a1564aec2b8ee1b538b113aea093d37a4692cd80b5348cb23e35bc5b47bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]     Checking ctrlc v3.4.7
[INFO] [stderr]     Checking ceviche v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `Vec<String>`, which is not FFI-safe
[INFO] [stdout]   --> src/controller/linux.rs:22:34
[INFO] [stdout]    |
[INFO] [stdout] 22 | type LinuxServiceMainWrapperFn = extern "system" fn(args: Vec<String>);
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[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]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Vec<String>`, which is not FFI-safe
[INFO] [stdout]   --> src/controller/linux.rs:22:34
[INFO] [stdout]    |
[INFO] [stdout] 22 | type LinuxServiceMainWrapperFn = extern "system" fn(args: Vec<String>);
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[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]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.22s
[INFO] running `Command { std: "docker" "inspect" "8a24a1564aec2b8ee1b538b113aea093d37a4692cd80b5348cb23e35bc5b47bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a24a1564aec2b8ee1b538b113aea093d37a4692cd80b5348cb23e35bc5b47bf", kill_on_drop: false }`
[INFO] [stdout] 8a24a1564aec2b8ee1b538b113aea093d37a4692cd80b5348cb23e35bc5b47bf