[INFO] fetching crate libb2-sys 0.0.1...
[INFO] testing libb2-sys-0.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate libb2-sys 0.0.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate libb2-sys 0.0.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libb2-sys 0.0.1
[INFO] finished tweaking crates.io crate libb2-sys 0.0.1
[INFO] tweaked toml for crates.io crate libb2-sys 0.0.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 519f962e41dbb81a18e0276f84b0d72e6e3d04b7eb0cc9050c41ea28ff9cfeab
[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" "519f962e41dbb81a18e0276f84b0d72e6e3d04b7eb0cc9050c41ea28ff9cfeab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "519f962e41dbb81a18e0276f84b0d72e6e3d04b7eb0cc9050c41ea28ff9cfeab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "519f962e41dbb81a18e0276f84b0d72e6e3d04b7eb0cc9050c41ea28ff9cfeab", kill_on_drop: false }`
[INFO] [stdout] 519f962e41dbb81a18e0276f84b0d72e6e3d04b7eb0cc9050c41ea28ff9cfeab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f9618a147163b25d9a9c2324e5ee486e55a27ebb1fc6f02f180e72ffb4d32a1
[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" "6f9618a147163b25d9a9c2324e5ee486e55a27ebb1fc6f02f180e72ffb4d32a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libb2-sys v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> build.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let src = PathBuf::new(&env::var("CARGO_MANIFEST_DIR").unwrap()).join("libb2-0.96");
[INFO] [stdout]    |               ^^^^^^^^^^^^ ---------------------------------------- supplied 1 argument
[INFO] [stdout]    |               |
[INFO] [stdout]    |               expected 0 arguments
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> build.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let dst = PathBuf::new(&env::var("OUT_DIR").unwrap());
[INFO] [stdout]    |               ^^^^^^^^^^^^ ----------------------------- supplied 1 argument
[INFO] [stdout]    |               |
[INFO] [stdout]    |               expected 0 arguments
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `FileNotFound` found for enum `std::io::ErrorKind` in the current scope
[INFO] [stdout]   --> build.rs:35:46
[INFO] [stdout]    |
[INFO] [stdout] 35 |         Err(ref e) if e.kind() == ErrorKind::FileNotFound => {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^
[INFO] [stdout]    |                                              |
[INFO] [stdout]    |                                              variant or associated item not found in `std::io::ErrorKind`
[INFO] [stdout]    |                                              help: there is a variant with a similar name: `NotFound`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libb2-sys`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "6f9618a147163b25d9a9c2324e5ee486e55a27ebb1fc6f02f180e72ffb4d32a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f9618a147163b25d9a9c2324e5ee486e55a27ebb1fc6f02f180e72ffb4d32a1", kill_on_drop: false }`
[INFO] [stdout] 6f9618a147163b25d9a9c2324e5ee486e55a27ebb1fc6f02f180e72ffb4d32a1