[INFO] cloning repository https://github.com/rust-lang-nursery/crater
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-lang-nursery/crater" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fcrater", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fcrater'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 674e4c2018d0ac9eab228986826d4ed35b9d988a
[INFO] checking rust-lang-nursery/crater against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fcrater" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-lang-nursery/crater on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rust-lang-nursery/crater
[INFO] finished tweaking git repo https://github.com/rust-lang-nursery/crater
[INFO] tweaked toml for git repo https://github.com/rust-lang-nursery/crater written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-lang-nursery/crater already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang/team`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macro-utils v0.1.3
[INFO] [stderr]   Downloaded cargo_metadata v0.12.1
[INFO] [stderr]   Downloaded crates-index v0.16.2
[INFO] [stderr]   Downloaded smartstring v0.2.5
[INFO] [stderr]   Downloaded systemstat v0.1.6
[INFO] [stderr]   Downloaded minifier v0.0.20
[INFO] [stderr]   Downloaded rusoto_core v0.35.0
[INFO] [stderr]   Downloaded rusoto_s3 v0.35.0
[INFO] [stderr]   Downloaded rustwide v0.10.0
[INFO] [stderr]   Downloaded rusoto_credential v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1360dd0db6d54e8bb604ed1d35d83ff6bdd25b0cb54bb7bc33736fef2d3ff97
[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" "c1360dd0db6d54e8bb604ed1d35d83ff6bdd25b0cb54bb7bc33736fef2d3ff97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1360dd0db6d54e8bb604ed1d35d83ff6bdd25b0cb54bb7bc33736fef2d3ff97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1360dd0db6d54e8bb604ed1d35d83ff6bdd25b0cb54bb7bc33736fef2d3ff97", kill_on_drop: false }`
[INFO] [stdout] c1360dd0db6d54e8bb604ed1d35d83ff6bdd25b0cb54bb7bc33736fef2d3ff97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cfe2a94e7742a0676b70d64da832b841c5afb9c004ba139a3b771042155bf71
[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" "2cfe2a94e7742a0676b70d64da832b841c5afb9c004ba139a3b771042155bf71", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking itoa v0.4.6
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[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking futures v0.1.30
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[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking pin-project-lite v0.1.11
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[INFO] [stderr]    Compiling failure_derive v0.1.8
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[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
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[INFO] [stderr]    Compiling lexical-core v0.7.4
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[INFO] [stderr]     Checking remove_dir_all v0.5.3
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[INFO] [stderr]    Compiling protobuf v2.18.1
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[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling rustwide v0.10.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking utf-8 v0.7.5
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[INFO] [stderr]    Compiling prometheus v0.7.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]    Compiling crater v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking urlencoding v1.1.1
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[INFO] [stderr]    Compiling doc-comment v0.3.3
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[INFO] [stderr]     Checking termcolor v1.1.2
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[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking tinyvec v1.1.0
[INFO] [stderr]     Checking instant v0.1.9
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[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking encoding_rs v0.8.26
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking xml-rs v0.7.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling rusoto_core v0.35.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking unicode-normalization v0.1.16
[INFO] [stderr]    Compiling syn v1.0.51
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking socket2 v0.3.17
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking filetime v0.2.13
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.5.2
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking tar v0.4.30
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]     Checking hmac v0.5.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.5
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking minifier v0.0.20
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking tokio v0.2.23
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking assert_cmd v1.0.2
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-signal v0.2.9
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling libssh2-sys v0.2.20
[INFO] [stderr]    Compiling libgit2-sys v0.12.14+1.1.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.10.0
[INFO] [stderr]     Checking tokio-process v0.2.5
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking headers-core v0.1.1
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]     Checking headers v0.2.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking semver-parser v0.10.0
[INFO] [stderr]     Checking dotenv v0.13.0
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking git2 v0.13.12
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking smartstring v0.2.5
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking serde_regex v0.3.1
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking rust_team_data v1.0.0 (https://github.com/rust-lang/team#23597edc)
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking crates-index v0.16.2
[INFO] [stderr]     Checking cargo_metadata v0.12.1
[INFO] [stderr]     Checking tera v0.11.20
[INFO] [stderr]     Checking systemstat v0.1.6
[INFO] [stderr]     Checking chrono-humanize v0.1.1
[INFO] [stderr]     Checking rusqlite v0.15.0
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking rusoto_credential v0.14.0
[INFO] [stderr]     Checking warp v0.1.23
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking r2d2_sqlite v0.7.0
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stderr]     Checking rusoto_s3 v0.35.0
[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:502:22
[INFO] [stdout]     |
[INFO] [stdout] 502 |                     .forward(tx.sink_map_err(|_| ()))
[INFO] [stdout]     |                      ^^^^^^^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the trait is implemented for `()`. Possibly this error has been caused by changes to Rust's type-inference algorithm (see issue #48950 <https://github.com/rust-lang/rust/issues/48950> for more information). Consider whether you meant to use the type `()` here instead.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:503:22
[INFO] [stdout]     |
[INFO] [stdout] 503 |                     .map(|_| ());
[INFO] [stdout]     |                      ^^^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the trait is implemented for `()`. Possibly this error has been caused by changes to Rust's type-inference algorithm (see issue #48950 <https://github.com/rust-lang/rust/issues/48950> for more information). Consider whether you meant to use the type `()` here instead.
[INFO] [stdout]     = note: required because of the requirements on the impl of `futures::Future` for `Forward<futures::stream::MapErr<futures::sync::mpsc::UnboundedReceiver<ws::Message>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:499:30: 501:22]>, SinkMapErr<SplitSink<ws::WebSocket>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:502:46: 502:52]>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:510:22
[INFO] [stdout]     |
[INFO] [stdout] 510 |                     .forward(rd_tx.sink_map_err(|_| ()))
[INFO] [stdout]     |                      ^^^^^^^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the trait is implemented for `()`. Possibly this error has been caused by changes to Rust's type-inference algorithm (see issue #48950 <https://github.com/rust-lang/rust/issues/48950> for more information). Consider whether you meant to use the type `()` here instead.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:511:22
[INFO] [stdout]     |
[INFO] [stdout] 511 |                     .map(|_| ());
[INFO] [stdout]     |                      ^^^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the trait is implemented for `()`. Possibly this error has been caused by changes to Rust's type-inference algorithm (see issue #48950 <https://github.com/rust-lang/rust/issues/48950> for more information). Consider whether you meant to use the type `()` here instead.
[INFO] [stdout]     = note: required because of the requirements on the impl of `futures::Future` for `Forward<futures::stream::Then<futures::stream::TakeWhile<SplitStream<ws::WebSocket>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:506:33: 508:22], Finished<bool, error::Error>>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:509:27: 509:46], std::result::Result<std::result::Result<ws::Message, error::Error>, !>>, SinkMapErr<futures::sync::mpsc::UnboundedSender<std::result::Result<ws::Message, error::Error>>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:510:49: 510:55]>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: From<()>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:513:35
[INFO] [stdout]     |
[INFO] [stdout] 513 |                 rt.block_on(write.join(read)).expect("websocket forward");
[INFO] [stdout]     |                                   ^^^^ the trait `From<()>` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the trait is implemented for `()`. Possibly this error has been caused by changes to Rust's type-inference algorithm (see issue #48950 <https://github.com/rust-lang/rust/issues/48950> for more information). Consider whether you meant to use the type `()` here instead.
[INFO] [stdout]     = note: required because of the requirements on the impl of `futures::Future` for `Forward<futures::stream::MapErr<futures::sync::mpsc::UnboundedReceiver<ws::Message>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:499:30: 501:22]>, SinkMapErr<SplitSink<ws::WebSocket>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:502:46: 502:52]>>`
[INFO] [stdout]     = note: 1 redundant requirements hidden
[INFO] [stdout]     = note: required because of the requirements on the impl of `futures::Future` for `futures::Map<Forward<futures::stream::MapErr<futures::sync::mpsc::UnboundedReceiver<ws::Message>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:499:30: 501:22]>, SinkMapErr<SplitSink<ws::WebSocket>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:502:46: 502:52]>>, [closure@/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.23/src/test.rs:503:26: 503:32]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `warp`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2cfe2a94e7742a0676b70d64da832b841c5afb9c004ba139a3b771042155bf71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cfe2a94e7742a0676b70d64da832b841c5afb9c004ba139a3b771042155bf71", kill_on_drop: false }`
[INFO] [stdout] 2cfe2a94e7742a0676b70d64da832b841c5afb9c004ba139a3b771042155bf71