[INFO] fetching crate ws_stream_tungstenite 0.6.1...
[INFO] checking ws_stream_tungstenite-0.6.1 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate ws_stream_tungstenite 0.6.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ws_stream_tungstenite 0.6.1 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ws_stream_tungstenite 0.6.1
[INFO] finished tweaking crates.io crate ws_stream_tungstenite 0.6.1
[INFO] tweaked toml for crates.io crate ws_stream_tungstenite 0.6.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate ws_stream_tungstenite 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log-derive v0.4.1
[INFO] [stderr]   Downloaded async-tungstenite v0.13.1
[INFO] [stderr]   Downloaded async_progress v0.2.0
[INFO] [stderr]   Downloaded ringbuf v0.2.5
[INFO] [stderr]   Downloaded flexi_logger v0.18.0
[INFO] [stderr]   Downloaded futures-test v0.3.15
[INFO] [stderr]   Downloaded future-parking_lot v0.3.3
[INFO] [stderr]   Downloaded futures_ringbuf v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", 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] bde925474959a8abadaca4e0b2483a7c74f2ed3d17046c6377a680ea91ffa304
[INFO] running `Command { std: "docker" "start" "-a" "bde925474959a8abadaca4e0b2483a7c74f2ed3d17046c6377a680ea91ffa304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bde925474959a8abadaca4e0b2483a7c74f2ed3d17046c6377a680ea91ffa304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bde925474959a8abadaca4e0b2483a7c74f2ed3d17046c6377a680ea91ffa304", kill_on_drop: false }`
[INFO] [stdout] bde925474959a8abadaca4e0b2483a7c74f2ed3d17046c6377a680ea91ffa304
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9b73ab8a7e4950218a1270d9e44bb6ec8995acc06ad79548a3c26269d61c3fa
[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" "f9b73ab8a7e4950218a1270d9e44bb6ec8995acc06ad79548a3c26269d61c3fa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fastrand v1.4.1
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpufeatures v0.1.4
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking ringbuf v0.2.5
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking input_buffer v0.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking sha-1 v0.9.6
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling pharos v0.5.2
[INFO] [stderr]    Compiling ws_stream_tungstenite v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling async_progress v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking future-parking_lot v0.3.3
[INFO] [stderr]    Compiling async_io_stream v0.3.2
[INFO] [stderr]    Compiling futures_ringbuf v0.3.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking tungstenite v0.13.0
[INFO] [stderr]     Checking flexi_logger v0.18.0
[INFO] [stderr]    Compiling log-derive v0.4.1
[INFO] [stderr]     Checking async-io v1.4.1
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking asynchronous-codec v0.6.0
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking futures-test v0.3.15
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures_ringbuf-0.3.0/src/lib.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![ cfg_attr( nightly, feature( external_doc, doc_cfg    ) ) ]
[INFO] [stdout]   |                                 ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures_ringbuf` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f9b73ab8a7e4950218a1270d9e44bb6ec8995acc06ad79548a3c26269d61c3fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9b73ab8a7e4950218a1270d9e44bb6ec8995acc06ad79548a3c26269d61c3fa", kill_on_drop: false }`
[INFO] [stdout] f9b73ab8a7e4950218a1270d9e44bb6ec8995acc06ad79548a3c26269d61c3fa