[INFO] crate f128_internal 0.2.1 is already in cache
[INFO] checking f128_internal-0.2.1 against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] extracting crate f128_internal 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate f128_internal 0.2.1 on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate f128_internal 0.2.1
[INFO] finished tweaking crates.io crate f128_internal 0.2.1
[INFO] tweaked toml for crates.io crate f128_internal 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a38e824a7de1be7a1b4c5d946fa5b251e917e5006f67fea1b7e7947d1be94a63
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a38e824a7de1be7a1b4c5d946fa5b251e917e5006f67fea1b7e7947d1be94a63"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling f128_internal v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `zero`
[INFO] [stderr]   --> src/lib.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let zero = f128::from_u8(0).unwrap();
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_zero`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `[u8; 16]`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:27:28
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn u128_to_f128(x: [u8; 16]) -> f128;
[INFO] [stderr]    |                            ^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stderr]    = help: consider passing a pointer to the array
[INFO] [stderr]    = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `[u8; 16]`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:28:37
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn f128_to_u128(x: f128) -> [u8; 16];
[INFO] [stderr]    |                                     ^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider passing a pointer to the array
[INFO] [stderr]    = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `[u8; 16]`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:39:28
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn i128_to_f128(x: [u8; 16]) -> f128;
[INFO] [stderr]    |                            ^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider passing a pointer to the array
[INFO] [stderr]    = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `[u8; 16]`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:40:37
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn f128_to_i128(x: f128) -> [u8; 16];
[INFO] [stderr]    |                                     ^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider passing a pointer to the array
[INFO] [stderr]    = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `[u8; 16]`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:27:28
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn u128_to_f128(x: [u8; 16]) -> f128;
[INFO] [stderr]    |                            ^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stderr]    = help: consider passing a pointer to the array
[INFO] [stderr]    = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `[u8; 16]`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:28:37
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn f128_to_u128(x: f128) -> [u8; 16];
[INFO] [stderr]    |                                     ^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider passing a pointer to the array
[INFO] [stderr]    = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `[u8; 16]`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:39:28
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn i128_to_f128(x: [u8; 16]) -> f128;
[INFO] [stderr]    |                            ^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider passing a pointer to the array
[INFO] [stderr]    = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `[u8; 16]`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:40:37
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn f128_to_i128(x: f128) -> [u8; 16];
[INFO] [stderr]    |                                     ^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider passing a pointer to the array
[INFO] [stderr]    = note: passing raw arrays by value is not FFI-safe
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `"docker" "inspect" "a38e824a7de1be7a1b4c5d946fa5b251e917e5006f67fea1b7e7947d1be94a63"`
[INFO] running `"docker" "rm" "-f" "a38e824a7de1be7a1b4c5d946fa5b251e917e5006f67fea1b7e7947d1be94a63"`
[INFO] [stdout] a38e824a7de1be7a1b4c5d946fa5b251e917e5006f67fea1b7e7947d1be94a63