[INFO] updating cached repository https://github.com/nokute78/rust-ffi-study
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] testing nokute78/rust-ffi-study against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnokute78%2Frust-ffi-study" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nokute78/rust-ffi-study on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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 /workspace/builds/worker-4/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 `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b18772e9a4dc52cf0fb17d52d4137064b5e2da10a3578de6f387aff48b4b8ae0
[INFO] running `"docker" "start" "-a" "b18772e9a4dc52cf0fb17d52d4137064b5e2da10a3578de6f387aff48b4b8ae0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cc v1.0.42
[INFO] [stderr]    Compiling libc v0.2.62
[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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.62s
[INFO] running `"docker" "inspect" "b18772e9a4dc52cf0fb17d52d4137064b5e2da10a3578de6f387aff48b4b8ae0"`
[INFO] running `"docker" "rm" "-f" "b18772e9a4dc52cf0fb17d52d4137064b5e2da10a3578de6f387aff48b4b8ae0"`
[INFO] [stdout] b18772e9a4dc52cf0fb17d52d4137064b5e2da10a3578de6f387aff48b4b8ae0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ef1e15b313a3ae310e263aa7f2de3f72b53bc60be51f81f77d509b27e9aebc83
[INFO] running `"docker" "start" "-a" "ef1e15b313a3ae310e263aa7f2de3f72b53bc60be51f81f77d509b27e9aebc83"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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: 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] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "ef1e15b313a3ae310e263aa7f2de3f72b53bc60be51f81f77d509b27e9aebc83"`
[INFO] running `"docker" "rm" "-f" "ef1e15b313a3ae310e263aa7f2de3f72b53bc60be51f81f77d509b27e9aebc83"`
[INFO] [stdout] ef1e15b313a3ae310e263aa7f2de3f72b53bc60be51f81f77d509b27e9aebc83
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9240ddb9c48f0120f31d02a629d426f703c1095ec77bdc82287561d980f7bde7
[INFO] running `"docker" "start" "-a" "9240ddb9c48f0120f31d02a629d426f703c1095ec77bdc82287561d980f7bde7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_ffi_study-306491b652e99f6a
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test callback::tests::test_c_callback_plus_one ... ok
[INFO] [stdout] test float::tests::test_cmp_double_val ... ok
[INFO] [stdout] test integer::tests::test_c_int_max ... ok
[INFO] [stdout] test integer::tests::test_c_ret_even_odd ... ok
[INFO] [stdout] test integer::tests::test_c_return_int ... ok
[INFO] [stdout] test integer::tests::test_c_return_int64_t ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9240ddb9c48f0120f31d02a629d426f703c1095ec77bdc82287561d980f7bde7"`
[INFO] running `"docker" "rm" "-f" "9240ddb9c48f0120f31d02a629d426f703c1095ec77bdc82287561d980f7bde7"`
[INFO] [stdout] 9240ddb9c48f0120f31d02a629d426f703c1095ec77bdc82287561d980f7bde7