[INFO] fetching crate smol 0.3.3... [INFO] testing smol-0.3.3 against 1.45.2 for beta-1.46-1 [INFO] extracting crate smol 0.3.3 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate smol 0.3.3 on toolchain 1.45.2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate smol 0.3.3 [INFO] finished tweaking crates.io crate smol 0.3.3 [INFO] tweaked toml for crates.io crate smol 0.3.3 written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate crates.io crate smol 0.3.3 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bb1fd1a1cff725811294c4da0c342a504588e8e4fce36ba5d31be3aa045aec39 [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" "bb1fd1a1cff725811294c4da0c342a504588e8e4fce36ba5d31be3aa045aec39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bb1fd1a1cff725811294c4da0c342a504588e8e4fce36ba5d31be3aa045aec39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb1fd1a1cff725811294c4da0c342a504588e8e4fce36ba5d31be3aa045aec39", kill_on_drop: false }` [INFO] [stdout] bb1fd1a1cff725811294c4da0c342a504588e8e4fce36ba5d31be3aa045aec39 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", 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] 00272bcc7ca807a623f699edff7fbfb6e06416d8c617a962e69e511f8ca9278b [INFO] running `Command { std: "docker" "start" "-a" "00272bcc7ca807a623f699edff7fbfb6e06416d8c617a962e69e511f8ca9278b", kill_on_drop: false }` [INFO] [stderr] Compiling cache-padded v1.1.1 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling libc v0.2.73 [INFO] [stderr] Compiling fastrand v1.3.3 [INFO] [stderr] Compiling futures-core v0.3.5 [INFO] [stderr] Compiling parking v1.0.5 [INFO] [stderr] Compiling waker-fn v1.0.0 [INFO] [stderr] Compiling pin-project-lite v0.1.7 [INFO] [stderr] Compiling futures-io v0.3.5 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling once_cell v1.4.0 [INFO] [stderr] Compiling async-task v3.0.0 [INFO] [stderr] Compiling vec-arena v0.5.0 [INFO] [stderr] Compiling event-listener v2.2.0 [INFO] [stderr] Compiling scoped-tls v1.0.0 [INFO] [stderr] Compiling atomic-waker v1.0.0 [INFO] [stderr] Compiling easy-parallel v3.1.0 [INFO] [stderr] Compiling concurrent-queue v1.1.1 [INFO] [stderr] Compiling async-channel v1.1.1 [INFO] [stderr] Compiling multitask v0.2.0 [INFO] [stderr] Compiling futures-lite v0.1.9 [INFO] [stderr] Compiling blocking v0.5.0 [INFO] [stderr] Compiling socket2 v0.3.12 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling async-io v0.1.5 [INFO] [stderr] Compiling async-executor v0.1.2 [INFO] [stderr] Compiling smol v0.3.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.70s [INFO] running `Command { std: "docker" "inspect" "00272bcc7ca807a623f699edff7fbfb6e06416d8c617a962e69e511f8ca9278b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "00272bcc7ca807a623f699edff7fbfb6e06416d8c617a962e69e511f8ca9278b", kill_on_drop: false }` [INFO] [stdout] 00272bcc7ca807a623f699edff7fbfb6e06416d8c617a962e69e511f8ca9278b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f6ef66f9d3dba2d6381d97efd0c1bc9f5d67f8eea0ae44615e7bdac4fb908619 [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" "f6ef66f9d3dba2d6381d97efd0c1bc9f5d67f8eea0ae44615e7bdac4fb908619", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling syn v1.0.35 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling itoa v0.4.6 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling proc-macro-hack v0.5.16 [INFO] [stderr] Compiling ppv-lite86 v0.2.8 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling pin-project-internal v0.4.22 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling futures-sink v0.3.5 [INFO] [stderr] Compiling serde_json v1.0.56 [INFO] [stderr] Compiling proc-macro-nested v0.1.6 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling futures v0.1.29 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.65 [INFO] [stderr] Compiling bumpalo v3.4.0 [INFO] [stderr] Compiling percent-encoding v2.1.0 [INFO] [stderr] Compiling bytes v0.5.6 [INFO] [stderr] Compiling tinyvec v0.3.3 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling siphasher v0.3.3 [INFO] [stderr] Compiling pkg-config v0.3.18 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Compiling wasm-bindgen v0.2.65 [INFO] [stderr] Compiling cc v1.0.58 [INFO] [stderr] Compiling subtle v2.2.3 [INFO] [stderr] Compiling dtoa v0.4.6 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling base64 v0.12.3 [INFO] [stderr] Compiling foreign-types-shared v0.1.1 [INFO] [stderr] Compiling openssl v0.10.30 [INFO] [stderr] Compiling native-tls v0.2.4 [INFO] [stderr] Compiling adler v0.2.3 [INFO] [stderr] Compiling gimli v0.22.0 [INFO] [stderr] Compiling send_wrapper v0.4.0 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling utf-8 v0.7.5 [INFO] [stderr] Compiling object v0.20.0 [INFO] [stderr] Compiling openssl-probe v0.1.2 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Compiling anyhow v1.0.31 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling stable_deref_trait v1.2.0 [INFO] [stderr] Compiling cpuid-bool v0.1.2 [INFO] [stderr] Compiling opaque-debug v0.3.0 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling data-encoding v2.2.1 [INFO] [stderr] Compiling new_debug_unreachable v1.0.4 [INFO] [stderr] Compiling infer v0.1.7 [INFO] [stderr] Compiling try-lock v0.2.3 [INFO] [stderr] Compiling mac v0.1.1 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling mime v0.3.16 [INFO] [stderr] Compiling tower-service v0.3.0 [INFO] [stderr] Compiling encoding_rs v0.8.23 [INFO] [stderr] Compiling safemem v0.3.3 [INFO] [stderr] Compiling base64 v0.11.0 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Compiling nodrop v0.1.14 [INFO] [stderr] Compiling remove_dir_all v0.5.3 [INFO] [stderr] Compiling smallvec v1.4.1 [INFO] [stderr] Compiling arc-swap v0.4.7 [INFO] [stderr] Compiling thin-slice v0.1.1 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling route-recognizer v0.2.0 [INFO] [stderr] Compiling ego-tree v0.6.2 [INFO] [stderr] Compiling urlencoding v1.1.1 [INFO] [stderr] Compiling tracing-core v0.1.11 [INFO] [stderr] Compiling futures-task v0.3.5 [INFO] [stderr] Compiling futures-channel v0.3.5 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling generic-array v0.14.3 [INFO] [stderr] Compiling standback v0.2.9 [INFO] [stderr] Compiling time v0.2.16 [INFO] [stderr] Compiling error-chain v0.12.2 [INFO] [stderr] Compiling cookie v0.14.2 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Compiling simple-mutex v1.1.5 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling hashbrown v0.8.1 [INFO] [stderr] Compiling indexmap v1.5.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling phf_shared v0.8.0 [INFO] [stderr] Compiling unicode-normalization v0.1.13 [INFO] [stderr] Compiling foreign-types v0.3.2 [INFO] [stderr] Compiling http v0.2.1 [INFO] [stderr] Compiling input_buffer v0.3.1 [INFO] [stderr] Compiling dtoa-short v0.3.2 [INFO] [stderr] Compiling miniz_oxide v0.4.0 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling futf v0.1.4 [INFO] [stderr] Compiling servo_arc v0.1.1 [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Compiling async-dup v1.2.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.34 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling time v0.1.43 [INFO] [stderr] Compiling signal-hook-registry v1.2.0 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling timerfd v1.1.1 [INFO] [stderr] Compiling twoway v0.1.8 [INFO] [stderr] Compiling buf_redux v0.8.4 [INFO] [stderr] Compiling tendril v0.4.1 [INFO] [stderr] Compiling idna v0.2.0 [INFO] [stderr] Compiling fxhash v0.2.1 [INFO] [stderr] Compiling openssl-sys v0.9.58 [INFO] [stderr] Compiling kv-log-macro v1.0.7 [INFO] [stderr] Compiling tracing v0.1.17 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling want v0.3.0 [INFO] [stderr] Compiling logtest v2.0.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling blocking v0.4.7 [INFO] [stderr] Compiling inotify v0.8.3 [INFO] [stderr] Compiling mio v0.6.22 [INFO] [stderr] Compiling signal-hook v0.1.16 [INFO] [stderr] Compiling generic-array v0.12.3 [INFO] [stderr] Compiling mime v0.2.6 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling mime_guess v2.0.3 [INFO] [stderr] Compiling crossbeam-queue v0.2.3 [INFO] [stderr] Compiling url v2.1.1 [INFO] [stderr] Compiling http-body v0.3.1 [INFO] [stderr] Compiling headers-core v0.2.0 [INFO] [stderr] Compiling rand_pcg v0.2.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling addr2line v0.13.0 [INFO] [stderr] Compiling async-net v0.1.1 [INFO] [stderr] Compiling tokio-io v0.1.13 [INFO] [stderr] Compiling phf v0.7.24 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling byte-pool v0.2.1 [INFO] [stderr] Compiling block-cipher v0.7.1 [INFO] [stderr] Compiling universal-hash v0.4.0 [INFO] [stderr] Compiling digest v0.9.0 [INFO] [stderr] Compiling crypto-mac v0.8.0 [INFO] [stderr] Compiling aead v0.3.2 [INFO] [stderr] Compiling block-buffer v0.9.0 [INFO] [stderr] Compiling backtrace v0.3.50 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling sha-1 v0.8.2 [INFO] [stderr] Compiling tokio v0.2.22 [INFO] [stderr] Compiling aes-soft v0.4.0 [INFO] [stderr] Compiling polyval v0.4.0 [INFO] [stderr] Compiling hmac v0.8.1 [INFO] [stderr] Compiling sha2 v0.9.1 [INFO] [stderr] Compiling headers v0.3.2 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling hkdf v0.9.0 [INFO] [stderr] Compiling ghash v0.3.0 [INFO] [stderr] Compiling aes v0.4.0 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling aes-gcm v0.6.0 [INFO] [stderr] Compiling mime_guess v1.8.8 [INFO] [stderr] Compiling phf_generator v0.8.0 [INFO] [stderr] Compiling tempfile v3.1.0 [INFO] [stderr] Compiling tungstenite v0.10.1 [INFO] [stderr] Compiling phf_codegen v0.8.0 [INFO] [stderr] Compiling string_cache_codegen v0.5.1 [INFO] [stderr] Compiling selectors v0.22.0 [INFO] [stderr] Compiling multipart v0.16.1 [INFO] [stderr] Compiling ctrlc v3.1.5 [INFO] [stderr] Compiling tungstenite v0.11.0 [INFO] [stderr] Compiling tokio-util v0.3.1 [INFO] [stderr] Compiling tokio-tls v0.3.1 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.65 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.65 [INFO] [stderr] Compiling futures-macro v0.3.5 [INFO] [stderr] Compiling time-macros-impl v0.1.1 [INFO] [stderr] Compiling phf_macros v0.8.0 [INFO] [stderr] Compiling thiserror-impl v1.0.20 [INFO] [stderr] Compiling cssparser v0.27.2 [INFO] [stderr] Compiling html5ever v0.25.1 [INFO] [stderr] Compiling cssparser-macros v0.6.0 [INFO] [stderr] Compiling derive_more v0.99.9 [INFO] [stderr] Compiling async-trait v0.1.36 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.65 [INFO] [stderr] Compiling time-macros v0.1.0 [INFO] [stderr] Compiling thiserror v1.0.20 [INFO] [stderr] Compiling phf v0.8.0 [INFO] [stderr] Compiling pin-project v0.4.22 [INFO] [stderr] Compiling futures-util v0.3.5 [INFO] [stderr] Compiling tracing-futures v0.2.4 [INFO] [stderr] Compiling smol v0.1.18 [INFO] [stderr] Compiling futures-executor v0.3.5 [INFO] [stderr] Compiling h2 v0.2.6 [INFO] [stderr] Compiling futures v0.3.5 [INFO] [stderr] Compiling tokio-tungstenite v0.10.1 [INFO] [stderr] Compiling serde_urlencoded v0.6.1 [INFO] [stderr] Compiling serde_qs v0.6.1 [INFO] [stderr] Compiling string_cache v0.8.0 [INFO] [stderr] Compiling femme v2.1.0 [INFO] [stderr] Compiling hyper v0.13.7 [INFO] [stderr] Compiling markup5ever v0.10.0 [INFO] [stderr] Compiling js-sys v0.3.42 [INFO] [stderr] Compiling web-sys v0.3.42 [INFO] [stderr] Compiling scraper v0.12.0 [INFO] [stderr] Compiling hyper-tls v0.4.3 [INFO] [stderr] Compiling warp v0.2.4 [INFO] [stderr] Compiling reqwest v0.10.6 [INFO] [stderr] Compiling gloo-timers v0.2.1 [INFO] [stderr] Compiling futures-timer v3.0.2 [INFO] [stderr] Compiling async-std v1.6.2 [INFO] [stderr] Compiling http-types v2.3.0 [INFO] [stderr] Compiling async-native-tls v0.3.3 [INFO] [stderr] Compiling async-tungstenite v0.7.1 [INFO] [stderr] Compiling async-h1 v2.1.0 [INFO] [stderr] Compiling async-sse v4.0.0 [INFO] [stderr] Compiling http-client v3.0.0 [INFO] [stderr] Compiling tide v0.12.0 [INFO] [stderr] Compiling surf v2.0.0-alpha.4 [INFO] [stderr] Compiling smol v0.3.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `smol::future` [INFO] [stdout] --> examples/ctrl-c.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use smol::future; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tokio` [INFO] [stdout] --> examples/hyper-server.rs:140:6 [INFO] [stdout] | [INFO] [stdout] 140 | impl tokio::io::AsyncRead for SmolStream { [INFO] [stdout] | ^^^^^ use of undeclared type or module `tokio` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tokio` [INFO] [stdout] --> examples/hyper-server.rs:159:6 [INFO] [stdout] | [INFO] [stdout] 159 | impl tokio::io::AsyncWrite for SmolStream { [INFO] [stdout] | ^^^^^ use of undeclared type or module `tokio` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0433`. [INFO] [stdout] [INFO] [stderr] error: could not compile `smol`. [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] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "f6ef66f9d3dba2d6381d97efd0c1bc9f5d67f8eea0ae44615e7bdac4fb908619", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f6ef66f9d3dba2d6381d97efd0c1bc9f5d67f8eea0ae44615e7bdac4fb908619", kill_on_drop: false }` [INFO] [stdout] f6ef66f9d3dba2d6381d97efd0c1bc9f5d67f8eea0ae44615e7bdac4fb908619