[INFO] fetching crate ceviche 0.5.2...
[INFO] checking ceviche-0.5.2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate ceviche 0.5.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ceviche 0.5.2 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ceviche 0.5.2
[INFO] finished tweaking crates.io crate ceviche 0.5.2
[INFO] tweaked toml for crates.io crate ceviche 0.5.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 53 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding cfg_aliases v0.1.1 (latest: v0.2.0)
[INFO] [stderr]       Adding memoffset v0.6.5 (latest: v0.9.1)
[INFO] [stderr]       Adding nix v0.24.3 (latest: v0.28.0)
[INFO] [stderr]       Adding system-configuration-sys v0.5.0 (latest: v0.6.0)
[INFO] [stderr]       Adding widestring v0.4.3 (latest: v1.0.2)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded systemd-sys v0.1.0
[INFO] [stderr]   Downloaded ctrlc v3.4.4
[INFO] [stderr]   Downloaded epoll v4.3.3
[INFO] [stderr]   Downloaded systemd-rs v0.1.7
[INFO] [stderr]   Downloaded timer v0.2.0
[INFO] [stderr]   Downloaded nix v0.28.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52cd055634b09b249d88b9d1e407da31fb17489820325572148121cd6bd1b00e
[INFO] running `Command { std: "docker" "start" "-a" "52cd055634b09b249d88b9d1e407da31fb17489820325572148121cd6bd1b00e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52cd055634b09b249d88b9d1e407da31fb17489820325572148121cd6bd1b00e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52cd055634b09b249d88b9d1e407da31fb17489820325572148121cd6bd1b00e", kill_on_drop: false }`
[INFO] [stdout] 52cd055634b09b249d88b9d1e407da31fb17489820325572148121cd6bd1b00e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 048ca1cd2f3b9f3f0e1664125ab49654837f76e6201e6c612fcb2dae95e72c18
[INFO] running `Command { std: "docker" "start" "-a" "048ca1cd2f3b9f3f0e1664125ab49654837f76e6201e6c612fcb2dae95e72c18", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling systemd-sys v0.1.0
[INFO] [stderr]     Checking epoll v4.3.3
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking ctrlc v3.4.4
[INFO] [stderr]     Checking systemd-rs v0.1.7
[INFO] [stderr]     Checking ceviche v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `Vec<String>`, which is not FFI-safe
[INFO] [stdout]   --> src/controller/linux.rs:18:34
[INFO] [stdout]    |
[INFO] [stdout] 18 | 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:18:34
[INFO] [stdout]    |
[INFO] [stdout] 18 | 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.77s
[INFO] running `Command { std: "docker" "inspect" "048ca1cd2f3b9f3f0e1664125ab49654837f76e6201e6c612fcb2dae95e72c18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "048ca1cd2f3b9f3f0e1664125ab49654837f76e6201e6c612fcb2dae95e72c18", kill_on_drop: false }`
[INFO] [stdout] 048ca1cd2f3b9f3f0e1664125ab49654837f76e6201e6c612fcb2dae95e72c18
[INFO] checking ceviche-0.5.2 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate ceviche 0.5.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate ceviche 0.5.2 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ceviche 0.5.2
[INFO] finished tweaking crates.io crate ceviche 0.5.2
[INFO] tweaked toml for crates.io crate ceviche 0.5.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebb09f0fb825bdce3320929c751b210cede9fcc25fb75eba091a4074f17b5921
[INFO] running `Command { std: "docker" "start" "-a" "ebb09f0fb825bdce3320929c751b210cede9fcc25fb75eba091a4074f17b5921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebb09f0fb825bdce3320929c751b210cede9fcc25fb75eba091a4074f17b5921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebb09f0fb825bdce3320929c751b210cede9fcc25fb75eba091a4074f17b5921", kill_on_drop: false }`
[INFO] [stdout] ebb09f0fb825bdce3320929c751b210cede9fcc25fb75eba091a4074f17b5921
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4aefcbb892544fdb92514ef4297aa0f2d947e28db9b12d7b8468c1aa5c846d98
[INFO] running `Command { std: "docker" "start" "-a" "4aefcbb892544fdb92514ef4297aa0f2d947e28db9b12d7b8468c1aa5c846d98", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling systemd-sys v0.1.0
[INFO] [stderr]     Checking epoll v4.3.3
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking ctrlc v3.4.4
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/ctrlc-3.4.4/src/lib.rs:144:16
[INFO] [stdout]     |
[INFO] [stdout] 144 |         .spawn(move || loop {
[INFO] [stdout]     |          ----- ^^^^^^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `Builder::spawn`
[INFO] [stdout]    --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:381:5
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]     |
[INFO] [stdout] 144 ~         .spawn(move || -> /* Type */ { loop {
[INFO] [stdout] 145 |             unsafe {
[INFO] [stdout]   ...
[INFO] [stdout] 148 |             user_handler();
[INFO] [stdout] 149 ~         } })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ctrlc` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4aefcbb892544fdb92514ef4297aa0f2d947e28db9b12d7b8468c1aa5c846d98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aefcbb892544fdb92514ef4297aa0f2d947e28db9b12d7b8468c1aa5c846d98", kill_on_drop: false }`
[INFO] [stdout] 4aefcbb892544fdb92514ef4297aa0f2d947e28db9b12d7b8468c1aa5c846d98