[INFO] fetching crate autocxx-engine 0.3.0...
[INFO] checking autocxx-engine-0.3.0 against try#075992eda207e1647b699c8c8ada67b32ce7b115 for pr-77271
[INFO] extracting crate autocxx-engine 0.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate autocxx-engine 0.3.0 on toolchain 075992eda207e1647b699c8c8ada67b32ce7b115
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate autocxx-engine 0.3.0
[INFO] finished tweaking crates.io crate autocxx-engine 0.3.0
[INFO] tweaked toml for crates.io crate autocxx-engine 0.3.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded link-cplusplus v1.0.3
[INFO] [stderr]   Downloaded cxx v0.4.7
[INFO] [stderr]   Downloaded cxxbridge-macro v0.4.7
[INFO] [stderr]   Downloaded cxxbridge-flags v0.4.7
[INFO] [stderr]   Downloaded osstrtools v0.2.2
[INFO] [stderr]   Downloaded rust_info v0.3.1
[INFO] [stderr]   Downloaded cxx-gen v0.4.1
[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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9113e4fbe3b8794c5ae48c40c5045c3f11e256fa42ed998b0abe1c7351d6bd6e
[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" "9113e4fbe3b8794c5ae48c40c5045c3f11e256fa42ed998b0abe1c7351d6bd6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9113e4fbe3b8794c5ae48c40c5045c3f11e256fa42ed998b0abe1c7351d6bd6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9113e4fbe3b8794c5ae48c40c5045c3f11e256fa42ed998b0abe1c7351d6bd6e", kill_on_drop: false }`
[INFO] [stdout] 9113e4fbe3b8794c5ae48c40c5045c3f11e256fa42ed998b0abe1c7351d6bd6e
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c92464974de4f0f41e50928ddfcf1fbdb3341579ed459d683f526bd51541bb7
[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" "7c92464974de4f0f41e50928ddfcf1fbdb3341579ed459d683f526bd51541bb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling cxxbridge-flags v0.4.7
[INFO] [stderr]    Compiling trybuild v1.0.35
[INFO] [stderr]    Compiling unindent v0.1.6
[INFO] [stderr]     Checking cc v1.0.60
[INFO] [stderr]     Checking peeking_take_while v0.1.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking rust_info v0.3.1
[INFO] [stderr]    Compiling link-cplusplus v1.0.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[INFO] [stderr]    Compiling cxx v0.4.7
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking libloading v0.6.3
[INFO] [stderr]    Compiling indoc v1.0.2
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling clang-sys v1.0.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking syn v1.0.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking which v3.1.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking osstrtools v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking cexpr v0.4.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking cxx-gen v0.4.1
[INFO] [stderr]    Compiling cxxbridge-macro v0.4.7
[INFO] [stderr]    Compiling test-env-log v0.2.2
[INFO] [stderr]     Checking autocxx-engine v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `autocxx_build`
[INFO] [stdout]    --> src/integration_tests.rs:144:32
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let mut b = autocxx_build::Builder::new(&rs_path, tdir.path().to_str().unwrap()).unwrap();
[INFO] [stdout]     |                                ^^^^^^^ not found in `autocxx_build`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 15  | use bindgen::Builder;
[INFO] [stdout]     |
[INFO] [stdout] 15  | use crate::parse_quote::attr::thread::thread::Builder;
[INFO] [stdout]     |
[INFO] [stdout] 15  | use env_logger::Builder;
[INFO] [stdout]     |
[INFO] [stdout] 15  | use env_logger::filter::Builder;
[INFO] [stdout]     |
[INFO] [stdout]       and 2 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `autocxx-engine`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "7c92464974de4f0f41e50928ddfcf1fbdb3341579ed459d683f526bd51541bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c92464974de4f0f41e50928ddfcf1fbdb3341579ed459d683f526bd51541bb7", kill_on_drop: false }`
[INFO] [stdout] 7c92464974de4f0f41e50928ddfcf1fbdb3341579ed459d683f526bd51541bb7