[INFO] fetching crate ccv 0.1.0...
[INFO] testing ccv-0.1.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate ccv 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ccv 0.1.0 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 ccv 0.1.0
[INFO] finished tweaking crates.io crate ccv 0.1.0
[INFO] tweaked toml for crates.io crate ccv 0.1.0 written to /workspace/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 493efc77ee1ba111a08eef407ffa2911e69b0834706931b37bffd1ce42c95d85
[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" "493efc77ee1ba111a08eef407ffa2911e69b0834706931b37bffd1ce42c95d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "493efc77ee1ba111a08eef407ffa2911e69b0834706931b37bffd1ce42c95d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "493efc77ee1ba111a08eef407ffa2911e69b0834706931b37bffd1ce42c95d85", kill_on_drop: false }`
[INFO] [stdout] 493efc77ee1ba111a08eef407ffa2911e69b0834706931b37bffd1ce42c95d85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9a7667f80a6db5cb60a97d740553354297b6cfd78b316ba95e6c97e8d7f648e
[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" "f9a7667f80a6db5cb60a97d740553354297b6cfd78b316ba95e6c97e8d7f648e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling ccv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Depth`
[INFO] [stdout]   --> src/ffi.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum Depth {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Coordinate`
[INFO] [stdout]   --> src/ffi.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Coordinate {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/matrix.rs:46:50
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let c_path = CString::new(path).unwrap().as_ptr(); // FIXME: Better error reporting.
[INFO] [stdout]    |                      --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/matrix.rs:61:50
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let c_path = CString::new(path).unwrap().as_ptr(); // FIXME: Better error reporting.
[INFO] [stdout]    |                      --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: could not find native static library `ccv`, perhaps an -L flag is missing?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ccv`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f9a7667f80a6db5cb60a97d740553354297b6cfd78b316ba95e6c97e8d7f648e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9a7667f80a6db5cb60a97d740553354297b6cfd78b316ba95e6c97e8d7f648e", kill_on_drop: false }`
[INFO] [stdout] f9a7667f80a6db5cb60a97d740553354297b6cfd78b316ba95e6c97e8d7f648e