[INFO] cloning repository https://github.com/standard-ai/hedwig-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/standard-ai/hedwig-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstandard-ai%2Fhedwig-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstandard-ai%2Fhedwig-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c37b093f3ab6d96e0094e6c75a54709a10f2acf
[INFO] checking standard-ai/hedwig-rust against nightly-2024-02-05 for check-cfg-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstandard-ai%2Fhedwig-rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/standard-ai/hedwig-rust on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/standard-ai/hedwig-rust
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/standard-ai/hedwig-rust
[INFO] tweaked toml for git repo https://github.com/standard-ai/hedwig-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/standard-ai/hedwig-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7747a6fa8d96592a0bd470eaa4bd26c541552a20c33527f61c1fac7dc0abccfa
[INFO] running `Command { std: "docker" "start" "-a" "7747a6fa8d96592a0bd470eaa4bd26c541552a20c33527f61c1fac7dc0abccfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7747a6fa8d96592a0bd470eaa4bd26c541552a20c33527f61c1fac7dc0abccfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7747a6fa8d96592a0bd470eaa4bd26c541552a20c33527f61c1fac7dc0abccfa", kill_on_drop: false }`
[INFO] [stdout] 7747a6fa8d96592a0bd470eaa4bd26c541552a20c33527f61c1fac7dc0abccfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26f547686e7ce13a38ed085adc5b309320fe40c4aadafbf76d42b2d1ab882c15
[INFO] running `Command { std: "docker" "start" "-a" "26f547686e7ce13a38ed085adc5b309320fe40c4aadafbf76d42b2d1ab882c15", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
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[INFO] [stderr]    Compiling prost-derive v0.12.3
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[INFO] [stderr]     Checking hedwig v7.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `backends::*`
[INFO] [stdout]   --> src/lib.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub use backends::*;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking tokio-io-timeout v1.1.1
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking time v0.3.20
[INFO] [stderr]     Checking humantime-serde v1.0.1
[INFO] [stderr]     Checking h2 v0.3.22
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking hyper-rustls v0.24.2
[INFO] [stderr]     Checking hyper-timeout v0.4.1
[INFO] [stderr]     Checking yup-oauth2 v8.3.0
[INFO] [stderr]     Checking tonic v0.10.2
[INFO] [stderr]     Checking ya-gcp v0.11.0
[INFO] [stdout] warning: function `assert_error` is never used
[INFO] [stdout]  --> src/tests/mod.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) fn assert_error<T: std::error::Error + Send + Sync + 'static>() {}
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assert_send_val` is never used
[INFO] [stdout]  --> src/tests/mod.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) fn assert_send_val<T: Send>(_: &T) {}
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.85s
[INFO] running `Command { std: "docker" "inspect" "26f547686e7ce13a38ed085adc5b309320fe40c4aadafbf76d42b2d1ab882c15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26f547686e7ce13a38ed085adc5b309320fe40c4aadafbf76d42b2d1ab882c15", kill_on_drop: false }`
[INFO] [stdout] 26f547686e7ce13a38ed085adc5b309320fe40c4aadafbf76d42b2d1ab882c15
[INFO] checking standard-ai/hedwig-rust against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstandard-ai%2Fhedwig-rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/standard-ai/hedwig-rust on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/standard-ai/hedwig-rust
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/standard-ai/hedwig-rust
[INFO] tweaked toml for git repo https://github.com/standard-ai/hedwig-rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/standard-ai/hedwig-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28b7ee1fd804228f4cd3906e4dbb4baaae6367a650cffdaeba32fc1d2bb2c532
[INFO] running `Command { std: "docker" "start" "-a" "28b7ee1fd804228f4cd3906e4dbb4baaae6367a650cffdaeba32fc1d2bb2c532", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28b7ee1fd804228f4cd3906e4dbb4baaae6367a650cffdaeba32fc1d2bb2c532", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28b7ee1fd804228f4cd3906e4dbb4baaae6367a650cffdaeba32fc1d2bb2c532", kill_on_drop: false }`
[INFO] [stdout] 28b7ee1fd804228f4cd3906e4dbb4baaae6367a650cffdaeba32fc1d2bb2c532
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dunexpected_cfgs" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 17f459e98a7b422412ea8760b5af14a75f252ed449fccfe5132008dcf88eb29d
[INFO] running `Command { std: "docker" "start" "-a" "17f459e98a7b422412ea8760b5af14a75f252ed449fccfe5132008dcf88eb29d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling async-trait v0.1.74
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling rustls v0.21.9
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]     Checking rustls-native-certs v0.6.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking smallstr v0.3.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking matchit v0.7.3
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking time-core v0.1.0
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking seahash v4.0.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking hedwig_core v0.1.0 (/opt/rustwide/workdir/hedwig_core)
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling ring v0.17.6
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling prost-derive v0.12.3
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Checking prost v0.12.3
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking prost-types v0.12.3
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking tokio-io-timeout v1.1.1
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking hedwig v7.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unexpected `cfg` condition name: `docsrs`
[INFO] [stdout]   --> src/lib.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 | #![cfg_attr(docsrs, feature(doc_cfg))]
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(docsrs)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]    = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `backends::*`
[INFO] [stdout]   --> src/lib.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub use backends::*;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hedwig` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "17f459e98a7b422412ea8760b5af14a75f252ed449fccfe5132008dcf88eb29d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f459e98a7b422412ea8760b5af14a75f252ed449fccfe5132008dcf88eb29d", kill_on_drop: false }`
[INFO] [stdout] 17f459e98a7b422412ea8760b5af14a75f252ed449fccfe5132008dcf88eb29d
