[INFO] updating cached repository jacobrosenthal/rust-ffi-bench
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jacobrosenthal/rust-ffi-bench
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jacobrosenthal/rust-ffi-bench" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/jacobrosenthal/rust-ffi-bench"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/jacobrosenthal/rust-ffi-bench'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jacobrosenthal/rust-ffi-bench" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/jacobrosenthal/rust-ffi-bench"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/jacobrosenthal/rust-ffi-bench'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e85828968a52a6415b19ea2b37f404f2f25ea8f2
[INFO] sha for GitHub repo jacobrosenthal/rust-ffi-bench: e85828968a52a6415b19ea2b37f404f2f25ea8f2
[INFO] validating manifest of jacobrosenthal/rust-ffi-bench on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jacobrosenthal/rust-ffi-bench on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jacobrosenthal/rust-ffi-bench
[INFO] finished frobbing jacobrosenthal/rust-ffi-bench
[INFO] frobbed toml for jacobrosenthal/rust-ffi-bench written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/jacobrosenthal/rust-ffi-bench/Cargo.toml
[INFO] started frobbing jacobrosenthal/rust-ffi-bench
[INFO] finished frobbing jacobrosenthal/rust-ffi-bench
[INFO] frobbed toml for jacobrosenthal/rust-ffi-bench written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/jacobrosenthal/rust-ffi-bench/Cargo.toml
[INFO] crate jacobrosenthal/rust-ffi-bench already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jacobrosenthal/rust-ffi-bench against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-7/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/jacobrosenthal/rust-ffi-bench:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cb56dc3e17d938bc4b6309665b9ac3a9ac4b0288b510369ec124506adf27695e
[INFO] running `"docker" "start" "-a" "cb56dc3e17d938bc4b6309665b9ac3a9ac4b0288b510369ec124506adf27695e"`
[INFO] [stderr]     Checking encoding_index_tests v0.1.5 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]     Checking encoding-types v0.2.0 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20160120.0 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.6 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20160120.0 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.6 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.6 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]     Checking encoding v0.3.0-dev (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]     Checking ffi-bench v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `atoi_via_bytes`
[INFO] [stderr]  --> src/flt.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn atoi_via_bytes(chars: [u8; 4]) -> u32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shifted_atoi_via_fold`
[INFO] [stderr]   --> src/flt.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn shifted_atoi_via_fold(chars: Vec<u8>) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shifted_atoi_via_map`
[INFO] [stderr]   --> src/flt.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn shifted_atoi_via_map(chars: Vec<u8>) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shifted_atoi_via_loop`
[INFO] [stderr]   --> src/flt.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn shifted_atoi_via_loop(chars: Vec<u8>) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compose_f32`
[INFO] [stderr]   --> src/flt.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | pub fn compose_f32(exponent: f32, mantissa: f32) -> f32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `clone_into_array`
[INFO] [stderr]   --> src/flt.rs:65:1
[INFO] [stderr]    |
[INFO] [stderr] 65 | / fn clone_into_array<A, T>(slice: &[T]) -> A
[INFO] [stderr] 66 | | where
[INFO] [stderr] 67 | |     A: Sized + Default + AsMut<[T]>,
[INFO] [stderr] 68 | |     T: Clone,
[INFO] [stderr] ...  |
[INFO] [stderr] 72 | |     a
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `getu16_stable`
[INFO] [stderr]   --> src/flt.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn getu16_stable(my_array: [u8; 4]) -> u16 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `getu16`
[INFO] [stderr]   --> src/flt.rs:79:1
[INFO] [stderr]    |
[INFO] [stderr] 79 | pub fn getu16(my_array: [u8; 4]) -> u16 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `getu32`
[INFO] [stderr]   --> src/flt.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn getu32(my_array: [u8; 4]) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `string_from_iso_bytes`
[INFO] [stderr]  --> src/string.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn string_from_iso_bytes(buffer: &[u8]) -> std::string::String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bytes_from_from_iso_string`
[INFO] [stderr]   --> src/string.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn bytes_from_from_iso_string(keyword: &str) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cstring_from_ptr`
[INFO] [stderr]   --> src/string.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn cstring_from_ptr(buffer: &[i8]) -> &str {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cstring_from_bytes`
[INFO] [stderr]   --> src/string.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn cstring_from_bytes(buffer: &[u8]) -> &str {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `string_from_utf8`
[INFO] [stderr]   --> src/string.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn string_from_utf8(buffer: &[u8]) -> &str {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(uniform_paths)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/flt.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_attributes)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/flt.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/flt.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/flt.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `int_to_from_bytes` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> examples/generate.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(int_to_from_bytes)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `atoi_via_bytes`
[INFO] [stderr]  --> src/flt.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn atoi_via_bytes(chars: [u8; 4]) -> u32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `getu32`
[INFO] [stderr]   --> src/flt.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn getu32(my_array: [u8; 4]) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(uniform_paths)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/flt.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_attributes)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/flt.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/flt.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/flt.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.08s
[INFO] running `"docker" "inspect" "cb56dc3e17d938bc4b6309665b9ac3a9ac4b0288b510369ec124506adf27695e"`
[INFO] running `"docker" "rm" "-f" "cb56dc3e17d938bc4b6309665b9ac3a9ac4b0288b510369ec124506adf27695e"`
[INFO] [stdout] cb56dc3e17d938bc4b6309665b9ac3a9ac4b0288b510369ec124506adf27695e