[INFO] updating cached repository https://github.com/elihugarret/tuple-luajit-example
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a115e794ef82ba945ec285219b28070112d9dc7
[INFO] testing elihugarret/tuple-luajit-example against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felihugarret%2Ftuple-luajit-example" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/elihugarret/tuple-luajit-example on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/elihugarret/tuple-luajit-example
[INFO] finished tweaking git repo https://github.com/elihugarret/tuple-luajit-example
[INFO] tweaked toml for git repo https://github.com/elihugarret/tuple-luajit-example written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/elihugarret/tuple-luajit-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 958f3b1623516ac681e06b40d81573990c792adbd8003f2ecdc173fed78e97bf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "958f3b1623516ac681e06b40d81573990c792adbd8003f2ecdc173fed78e97bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "958f3b1623516ac681e06b40d81573990c792adbd8003f2ecdc173fed78e97bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "958f3b1623516ac681e06b40d81573990c792adbd8003f2ecdc173fed78e97bf", kill_on_drop: false }`
[INFO] [stdout] 958f3b1623516ac681e06b40d81573990c792adbd8003f2ecdc173fed78e97bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 773125996aa9cf90bcbd2791459414bf35c67239313bddc56a80fe0a7815c4da
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "773125996aa9cf90bcbd2791459414bf35c67239313bddc56a80fe0a7815c4da", kill_on_drop: false }`
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `(*const i8, u32, u32)`, which is not FFI-safe
[INFO] [stdout]  --> src/lib.rs:5:69
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub extern "C" fn return_tuple(s: *const c_char, x: u32, y: u32) -> (*const c_char, u32, u32) {
[INFO] [stdout]   |                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]   = help: consider using a struct instead
[INFO] [stdout]   = note: tuples have unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "773125996aa9cf90bcbd2791459414bf35c67239313bddc56a80fe0a7815c4da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "773125996aa9cf90bcbd2791459414bf35c67239313bddc56a80fe0a7815c4da", kill_on_drop: false }`
[INFO] [stdout] 773125996aa9cf90bcbd2791459414bf35c67239313bddc56a80fe0a7815c4da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f2c6d032e52d86a5e8b73d514fc6c0c9b5a6f98ebce661f483f904604d535bf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9f2c6d032e52d86a5e8b73d514fc6c0c9b5a6f98ebce661f483f904604d535bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `(*const i8, u32, u32)`, which is not FFI-safe
[INFO] [stdout]  --> src/lib.rs:5:69
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub extern "C" fn return_tuple(s: *const c_char, x: u32, y: u32) -> (*const c_char, u32, u32) {
[INFO] [stdout]   |                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]   = help: consider using a struct instead
[INFO] [stdout]   = note: tuples have unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9f2c6d032e52d86a5e8b73d514fc6c0c9b5a6f98ebce661f483f904604d535bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f2c6d032e52d86a5e8b73d514fc6c0c9b5a6f98ebce661f483f904604d535bf", kill_on_drop: false }`
[INFO] [stdout] 9f2c6d032e52d86a5e8b73d514fc6c0c9b5a6f98ebce661f483f904604d535bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 012b4f1f3c84d36a4c8e4d62982c4981a812894fa53994b4e82689dc1d98bc6e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "012b4f1f3c84d36a4c8e4d62982c4981a812894fa53994b4e82689dc1d98bc6e", kill_on_drop: false }`
[INFO] [stderr] warning: `extern` fn uses type `(*const i8, u32, u32)`, which is not FFI-safe
[INFO] [stderr]  --> src/lib.rs:5:69
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub extern "C" fn return_tuple(s: *const c_char, x: u32, y: u32) -> (*const c_char, u32, u32) {
[INFO] [stderr]   |                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]   = help: consider using a struct instead
[INFO] [stderr]   = note: tuples have unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ownership-4d4398e05980446c
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "012b4f1f3c84d36a4c8e4d62982c4981a812894fa53994b4e82689dc1d98bc6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "012b4f1f3c84d36a4c8e4d62982c4981a812894fa53994b4e82689dc1d98bc6e", kill_on_drop: false }`
[INFO] [stdout] 012b4f1f3c84d36a4c8e4d62982c4981a812894fa53994b4e82689dc1d98bc6e