[INFO] fetching crate android_system_properties 0.1.5...
[INFO] checking android_system_properties-0.1.5 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate android_system_properties 0.1.5 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate android_system_properties 0.1.5
[INFO] finished tweaking crates.io crate android_system_properties 0.1.5
[INFO] tweaked toml for crates.io crate android_system_properties 0.1.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate android_system_properties 0.1.5 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate android_system_properties 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acb7e8e73713cdf4384714fe9a5f06f78accc206b2d0147054dff3b11cc72ebc
[INFO] running `Command { std: "docker" "start" "-a" "acb7e8e73713cdf4384714fe9a5f06f78accc206b2d0147054dff3b11cc72ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acb7e8e73713cdf4384714fe9a5f06f78accc206b2d0147054dff3b11cc72ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb7e8e73713cdf4384714fe9a5f06f78accc206b2d0147054dff3b11cc72ebc", kill_on_drop: false }`
[INFO] [stdout] acb7e8e73713cdf4384714fe9a5f06f78accc206b2d0147054dff3b11cc72ebc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d0874c0c09aa68e2f25243ae1604395b6a128d650b8df61d28efa3a9fa4d809
[INFO] running `Command { std: "docker" "start" "-a" "6d0874c0c09aa68e2f25243ae1604395b6a128d650b8df61d28efa3a9fa4d809", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking android_system_properties v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `unsafe fn(*mut String, *const i8, *const i8, u32)`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:56:37
[INFO] [stdout]    |
[INFO] [stdout] 56 | type SystemPropertyReadCallbackFn = unsafe extern "C" fn(*const c_void, Callback, *mut String) -> *const c_void;
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stdout]    = note: this function pointer has Rust-specific calling convention
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `unsafe fn(*mut String, *const i8, *const i8, u32)`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:56:37
[INFO] [stdout]    |
[INFO] [stdout] 56 | type SystemPropertyReadCallbackFn = unsafe extern "C" fn(*const c_void, Callback, *mut String) -> *const c_void;
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stdout]    = note: this function pointer has Rust-specific calling convention
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "6d0874c0c09aa68e2f25243ae1604395b6a128d650b8df61d28efa3a9fa4d809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d0874c0c09aa68e2f25243ae1604395b6a128d650b8df61d28efa3a9fa4d809", kill_on_drop: false }`
[INFO] [stdout] 6d0874c0c09aa68e2f25243ae1604395b6a128d650b8df61d28efa3a9fa4d809