[INFO] fetching crate palombe 0.5.0...
[INFO] testing palombe-0.5.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate palombe 0.5.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate palombe 0.5.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate palombe 0.5.0
[INFO] finished tweaking crates.io crate palombe 0.5.0
[INFO] tweaked toml for crates.io crate palombe 0.5.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8425bbd715f4d9b24764745b99ac07b343afd8b97ab0e0a432a5703fc44065e7
[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" "8425bbd715f4d9b24764745b99ac07b343afd8b97ab0e0a432a5703fc44065e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8425bbd715f4d9b24764745b99ac07b343afd8b97ab0e0a432a5703fc44065e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8425bbd715f4d9b24764745b99ac07b343afd8b97ab0e0a432a5703fc44065e7", kill_on_drop: false }`
[INFO] [stdout] 8425bbd715f4d9b24764745b99ac07b343afd8b97ab0e0a432a5703fc44065e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1e2d62ccdc951fe0e845f583e3765bd7fee6ed2d03a3f6ef0cc5dd091a2abd0
[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" "f1e2d62ccdc951fe0e845f583e3765bd7fee6ed2d03a3f6ef0cc5dd091a2abd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling palombe v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `CString`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:181:47
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub extern "C" fn c_receive(key: &CString) -> CString {
[INFO] [stdout]     |                                               ^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has 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 1.17s
[INFO] running `Command { std: "docker" "inspect" "f1e2d62ccdc951fe0e845f583e3765bd7fee6ed2d03a3f6ef0cc5dd091a2abd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1e2d62ccdc951fe0e845f583e3765bd7fee6ed2d03a3f6ef0cc5dd091a2abd0", kill_on_drop: false }`
[INFO] [stdout] f1e2d62ccdc951fe0e845f583e3765bd7fee6ed2d03a3f6ef0cc5dd091a2abd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2fa9406479ae7cddce29a563fa178c62cbc62e867b9ae202c42644aec080a491
[INFO] running `Command { std: "docker" "start" "-a" "2fa9406479ae7cddce29a563fa178c62cbc62e867b9ae202c42644aec080a491", kill_on_drop: false }`
[INFO] [stderr]    Compiling palombe v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `std::ffi::CString`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:181:47
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub extern "C" fn c_receive(key: &CString) -> CString {
[INFO] [stdout]     |                                               ^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.20s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2fa9406479ae7cddce29a563fa178c62cbc62e867b9ae202c42644aec080a491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa9406479ae7cddce29a563fa178c62cbc62e867b9ae202c42644aec080a491", kill_on_drop: false }`
[INFO] [stdout] 2fa9406479ae7cddce29a563fa178c62cbc62e867b9ae202c42644aec080a491
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bb082f4ed8cf285a8265ba3b97dc0def1fa543a271b13f92c5efaa6dd5903298
[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" "bb082f4ed8cf285a8265ba3b97dc0def1fa543a271b13f92c5efaa6dd5903298", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: `extern` fn uses type `std::ffi::CString`, which is not FFI-safe
[INFO] [stderr]    --> src/lib.rs:181:47
[INFO] [stderr]     |
[INFO] [stderr] 181 | pub extern "C" fn c_receive(key: &CString) -> CString {
[INFO] [stderr]     |                                               ^^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]     = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/palombe-17ca892a5333eb89)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::c_string ... ok
[INFO] [stdout] test tests::string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bb082f4ed8cf285a8265ba3b97dc0def1fa543a271b13f92c5efaa6dd5903298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb082f4ed8cf285a8265ba3b97dc0def1fa543a271b13f92c5efaa6dd5903298", kill_on_drop: false }`
[INFO] [stdout] bb082f4ed8cf285a8265ba3b97dc0def1fa543a271b13f92c5efaa6dd5903298