[INFO] updating cached repository https://github.com/nokute78/rust-ffi-study
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 49847e26ab151b28eb39f73acf9151b48e2b2753
[INFO] checking nokute78/rust-ffi-study against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnokute78%2Frust-ffi-study" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nokute78/rust-ffi-study on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nokute78/rust-ffi-study
[INFO] finished tweaking git repo https://github.com/nokute78/rust-ffi-study
[INFO] tweaked toml for git repo https://github.com/nokute78/rust-ffi-study written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/nokute78/rust-ffi-study already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ec2a638003442f012a523fcd47b92715c2e416367a349425701d19bf8392c461
[INFO] running `"docker" "start" "-a" "ec2a638003442f012a523fcd47b92715c2e416367a349425701d19bf8392c461"`
[INFO] [stderr]    Compiling cc v1.0.42
[INFO] [stderr]    Compiling rust-ffi-study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::ptr::copy`
[INFO] [stderr]   --> src/string.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::ptr::copy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EVEN`
[INFO] [stderr]   --> src/integer.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     EVEN = 10,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ODD`
[INFO] [stderr]   --> src/integer.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     ODD,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr::copy`
[INFO] [stderr]   --> src/string.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::ptr::copy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::libc`
[INFO] [stderr]   --> src/float.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     use super::libc;
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EVEN`
[INFO] [stderr]   --> src/integer.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     EVEN = 10,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ODD`
[INFO] [stderr]   --> src/integer.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     ODD,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.84s
[INFO] running `"docker" "inspect" "ec2a638003442f012a523fcd47b92715c2e416367a349425701d19bf8392c461"`
[INFO] running `"docker" "rm" "-f" "ec2a638003442f012a523fcd47b92715c2e416367a349425701d19bf8392c461"`
[INFO] [stdout] ec2a638003442f012a523fcd47b92715c2e416367a349425701d19bf8392c461