[INFO] fetching crate telegram-bot-fork 0.7.8...
[INFO] checking telegram-bot-fork-0.7.8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate telegram-bot-fork 0.7.8 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate telegram-bot-fork 0.7.8 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate telegram-bot-fork 0.7.8
[INFO] finished tweaking crates.io crate telegram-bot-fork 0.7.8
[INFO] tweaked toml for crates.io crate telegram-bot-fork 0.7.8 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 129 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
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[INFO] [stderr]       Adding foreign-types v0.3.2 (latest: v0.5.0)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded telegram-bot-fork-raw v0.7.8
[INFO] [stderr]   Downloaded error-chain v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5ac7a01962114b796e090ce4b1b5d68d28ebdab1502ef843259a481f50ca161
[INFO] running `Command { std: "docker" "start" "-a" "e5ac7a01962114b796e090ce4b1b5d68d28ebdab1502ef843259a481f50ca161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5ac7a01962114b796e090ce4b1b5d68d28ebdab1502ef843259a481f50ca161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5ac7a01962114b796e090ce4b1b5d68d28ebdab1502ef843259a481f50ca161", kill_on_drop: false }`
[INFO] [stdout] e5ac7a01962114b796e090ce4b1b5d68d28ebdab1502ef843259a481f50ca161
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48dd26ec121be1773dd9bc9d744abcdef7fc037e6641e724c2b53193a5fe1856
[INFO] running `Command { std: "docker" "start" "-a" "48dd26ec121be1773dd9bc9d744abcdef7fc037e6641e724c2b53193a5fe1856", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking error-chain v0.11.0
[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 openssl v0.10.64
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking telegram-bot-fork-raw v0.7.8
[INFO] [stderr]     Checking native-tls v0.2.11
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking telegram-bot-fork v0.7.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `hyper` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/lib.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub use connector::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio` is imported redundantly
[INFO] [stdout]   --> src/api.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use tokio;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate tokio;
[INFO] [stdout]    | ------------------- the item `tokio` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio_timer` is imported redundantly
[INFO] [stdout]   --> src/api.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use tokio_timer;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate tokio_timer;
[INFO] [stdout]    | ------------------------- the item `tokio_timer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `telegram_bot_fork_raw` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use telegram_bot_fork_raw;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate telegram_bot_fork_raw;
[INFO] [stdout]   | ----------------------------------- the item `telegram_bot_fork_raw` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio_timer` is imported redundantly
[INFO] [stdout]   --> src/stream.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use tokio_timer;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate tokio_timer;
[INFO] [stdout]    | ------------------------- the item `tokio_timer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hyper` is imported redundantly
[INFO] [stdout]   --> src/connector/hyper.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |     self,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ------------------- the item `hyper` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Url(::http::uri::InvalidUri) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] 6  | |         Hyper(::hyper::Error) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |     connector: Box<Connector>,
[INFO] [stdout]    |                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 |     connector: Box<dyn Connector>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/future.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inner: Box<Future<Item = T, Error = Error>>,
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inner: Box<dyn Future<Item = T, Error = Error>>,
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `hyper` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/lib.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub use connector::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio` is imported redundantly
[INFO] [stdout]   --> src/api.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use tokio;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate tokio;
[INFO] [stdout]    | ------------------- the item `tokio` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio_timer` is imported redundantly
[INFO] [stdout]   --> src/api.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use tokio_timer;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate tokio_timer;
[INFO] [stdout]    | ------------------------- the item `tokio_timer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `telegram_bot_fork_raw` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use telegram_bot_fork_raw;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate telegram_bot_fork_raw;
[INFO] [stdout]   | ----------------------------------- the item `telegram_bot_fork_raw` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio_timer` is imported redundantly
[INFO] [stdout]   --> src/stream.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use tokio_timer;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate tokio_timer;
[INFO] [stdout]    | ------------------------- the item `tokio_timer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hyper` is imported redundantly
[INFO] [stdout]   --> src/connector/hyper.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |     self,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ------------------- the item `hyper` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api.rs:67:67
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn with_connector<T: AsRef<str>>(token: T, connector: Box<Connector>) -> Self {
[INFO] [stdout]    |                                                                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn with_connector<T: AsRef<str>>(token: T, connector: Box<dyn Connector>) -> Self {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Url(::http::uri::InvalidUri) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] 6  | |         Hyper(::hyper::Error) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |     connector: Box<Connector>,
[INFO] [stdout]    |                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 |     connector: Box<dyn Connector>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/future.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inner: Box<Future<Item = T, Error = Error>>,
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inner: Box<dyn Future<Item = T, Error = Error>>,
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/future.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn new(inner: Box<Future<Item = T, Error = Error>>) -> Self;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn new(inner: Box<dyn Future<Item = T, Error = Error>>) -> Self;
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/future.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(inner: Box<Future<Item = T, Error = Error>>) -> Self {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(inner: Box<dyn Future<Item = T, Error = Error>>) -> Self {
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connector/mod.rs:17:42
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn default_connector() -> Result<Box<Connector>, Error> {
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn default_connector() -> Result<Box<dyn Connector>, Error> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connector/hyper.rs:92:42
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn default_connector() -> Result<Box<Connector>, Error> {
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn default_connector() -> Result<Box<dyn Connector>, Error> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api.rs:67:67
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn with_connector<T: AsRef<str>>(token: T, connector: Box<Connector>) -> Self {
[INFO] [stdout]    |                                                                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn with_connector<T: AsRef<str>>(token: T, connector: Box<dyn Connector>) -> Self {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Url(::http::uri::InvalidUri) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] 6  | |         Hyper(::hyper::Error) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/future.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn new(inner: Box<Future<Item = T, Error = Error>>) -> Self;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn new(inner: Box<dyn Future<Item = T, Error = Error>>) -> Self;
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/future.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(inner: Box<Future<Item = T, Error = Error>>) -> Self {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(inner: Box<dyn Future<Item = T, Error = Error>>) -> Self {
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connector/mod.rs:17:42
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn default_connector() -> Result<Box<Connector>, Error> {
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn default_connector() -> Result<Box<dyn Connector>, Error> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connector/hyper.rs:92:42
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn default_connector() -> Result<Box<Connector>, Error> {
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn default_connector() -> Result<Box<dyn Connector>, Error> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Url(::http::uri::InvalidUri) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] 6  | |         Hyper(::hyper::Error) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> examples/features.rs:105:44
[INFO] [stdout]     |
[INFO] [stdout] 105 |     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout]     |                                            ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 105 -     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout] 105 +     tokio::executor::current_thread::spawn(future.map_err(|_| ()).map(|_| ()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> examples/features.rs:118:44
[INFO] [stdout]     |
[INFO] [stdout] 118 |     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout]     |                                            ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 118 -     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout] 118 +     tokio::executor::current_thread::spawn(future.map_err(|_| ()).map(|_| ()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> examples/features.rs:126:44
[INFO] [stdout]     |
[INFO] [stdout] 126 |     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout]     |                                            ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 126 -     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout] 126 +     tokio::executor::current_thread::spawn(future.map_err(|_| ()).map(|_| ()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> examples/features.rs:137:44
[INFO] [stdout]     |
[INFO] [stdout] 137 |     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout]     |                                            ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 137 -     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout] 137 +     tokio::executor::current_thread::spawn(future.map_err(|_| ()).map(|_| ()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> examples/features.rs:147:44
[INFO] [stdout]     |
[INFO] [stdout] 147 |     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout]     |                                            ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 147 -     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout] 147 +     tokio::executor::current_thread::spawn(future.map_err(|_| ()).map(|_| ()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.04s
[INFO] running `Command { std: "docker" "inspect" "48dd26ec121be1773dd9bc9d744abcdef7fc037e6641e724c2b53193a5fe1856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48dd26ec121be1773dd9bc9d744abcdef7fc037e6641e724c2b53193a5fe1856", kill_on_drop: false }`
[INFO] [stdout] 48dd26ec121be1773dd9bc9d744abcdef7fc037e6641e724c2b53193a5fe1856
[INFO] checking telegram-bot-fork-0.7.8 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate telegram-bot-fork 0.7.8 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate telegram-bot-fork 0.7.8 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate telegram-bot-fork 0.7.8
[INFO] finished tweaking crates.io crate telegram-bot-fork 0.7.8
[INFO] tweaked toml for crates.io crate telegram-bot-fork 0.7.8 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfcf22569f89fa42856e26dcfb419882b761d455349d4fd700bb59218fe1fde6
[INFO] running `Command { std: "docker" "start" "-a" "bfcf22569f89fa42856e26dcfb419882b761d455349d4fd700bb59218fe1fde6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfcf22569f89fa42856e26dcfb419882b761d455349d4fd700bb59218fe1fde6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfcf22569f89fa42856e26dcfb419882b761d455349d4fd700bb59218fe1fde6", kill_on_drop: false }`
[INFO] [stdout] bfcf22569f89fa42856e26dcfb419882b761d455349d4fd700bb59218fe1fde6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52293860d69ff6c9dbfa3e6f87ce8837e4847cb23495e420ba170beb6f71fb90
[INFO] running `Command { std: "docker" "start" "-a" "52293860d69ff6c9dbfa3e6f87ce8837e4847cb23495e420ba170beb6f71fb90", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking antidote v1.0.0
[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 error-chain v0.11.0
[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 openssl v0.10.64
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking telegram-bot-fork-raw v0.7.8
[INFO] [stderr]     Checking native-tls v0.2.11
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking telegram-bot-fork v0.7.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `hyper` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/lib.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub use connector::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio` is imported redundantly
[INFO] [stdout]   --> src/api.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use tokio;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate tokio;
[INFO] [stdout]    | ------------------- the item `tokio` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio_timer` is imported redundantly
[INFO] [stdout]   --> src/api.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use tokio_timer;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate tokio_timer;
[INFO] [stdout]    | ------------------------- the item `tokio_timer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `telegram_bot_fork_raw` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use telegram_bot_fork_raw;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate telegram_bot_fork_raw;
[INFO] [stdout]   | ----------------------------------- the item `telegram_bot_fork_raw` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio_timer` is imported redundantly
[INFO] [stdout]   --> src/stream.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use tokio_timer;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate tokio_timer;
[INFO] [stdout]    | ------------------------- the item `tokio_timer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hyper` is imported redundantly
[INFO] [stdout]   --> src/connector/hyper.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |     self,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ------------------- the item `hyper` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `hyper` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/lib.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub use connector::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio` is imported redundantly
[INFO] [stdout]   --> src/api.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use tokio;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate tokio;
[INFO] [stdout]    | ------------------- the item `tokio` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio_timer` is imported redundantly
[INFO] [stdout]   --> src/api.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use tokio_timer;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate tokio_timer;
[INFO] [stdout]    | ------------------------- the item `tokio_timer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `telegram_bot_fork_raw` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use telegram_bot_fork_raw;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate telegram_bot_fork_raw;
[INFO] [stdout]   | ----------------------------------- the item `telegram_bot_fork_raw` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio_timer` is imported redundantly
[INFO] [stdout]   --> src/stream.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use tokio_timer;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate tokio_timer;
[INFO] [stdout]    | ------------------------- the item `tokio_timer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hyper` is imported redundantly
[INFO] [stdout]   --> src/connector/hyper.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |     self,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate hyper;
[INFO] [stdout]    | ------------------- the item `hyper` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Url(::http::uri::InvalidUri) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] 6  | |         Hyper(::hyper::Error) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |     connector: Box<Connector>,
[INFO] [stdout]    |                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 |     connector: Box<dyn Connector>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/future.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inner: Box<Future<Item = T, Error = Error>>,
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inner: Box<dyn Future<Item = T, Error = Error>>,
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Url(::http::uri::InvalidUri) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] 6  | |         Hyper(::hyper::Error) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |     connector: Box<Connector>,
[INFO] [stdout]    |                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 |     connector: Box<dyn Connector>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/future.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inner: Box<Future<Item = T, Error = Error>>,
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inner: Box<dyn Future<Item = T, Error = Error>>,
[INFO] [stdout]   |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api.rs:67:67
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn with_connector<T: AsRef<str>>(token: T, connector: Box<Connector>) -> Self {
[INFO] [stdout]    |                                                                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn with_connector<T: AsRef<str>>(token: T, connector: Box<dyn Connector>) -> Self {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api.rs:67:67
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn with_connector<T: AsRef<str>>(token: T, connector: Box<Connector>) -> Self {
[INFO] [stdout]    |                                                                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn with_connector<T: AsRef<str>>(token: T, connector: Box<dyn Connector>) -> Self {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/future.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn new(inner: Box<Future<Item = T, Error = Error>>) -> Self;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn new(inner: Box<dyn Future<Item = T, Error = Error>>) -> Self;
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/future.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(inner: Box<Future<Item = T, Error = Error>>) -> Self {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(inner: Box<dyn Future<Item = T, Error = Error>>) -> Self {
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connector/mod.rs:17:42
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn default_connector() -> Result<Box<Connector>, Error> {
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn default_connector() -> Result<Box<dyn Connector>, Error> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/future.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn new(inner: Box<Future<Item = T, Error = Error>>) -> Self;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn new(inner: Box<dyn Future<Item = T, Error = Error>>) -> Self;
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connector/hyper.rs:92:42
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn default_connector() -> Result<Box<Connector>, Error> {
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn default_connector() -> Result<Box<dyn Connector>, Error> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/future.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(inner: Box<Future<Item = T, Error = Error>>) -> Self {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(inner: Box<dyn Future<Item = T, Error = Error>>) -> Self {
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connector/mod.rs:17:42
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn default_connector() -> Result<Box<Connector>, Error> {
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn default_connector() -> Result<Box<dyn Connector>, Error> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/connector/hyper.rs:92:42
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn default_connector() -> Result<Box<Connector>, Error> {
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn default_connector() -> Result<Box<dyn Connector>, Error> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Url(::http::uri::InvalidUri) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] 6  | |         Hyper(::hyper::Error) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Url(::http::uri::InvalidUri) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] 6  | |         Hyper(::hyper::Error) #[cfg(feature = "hyper_connector")];
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> examples/features.rs:105:44
[INFO] [stdout]     |
[INFO] [stdout] 105 |     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout]     |                                            ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 105 -     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout] 105 +     tokio::executor::current_thread::spawn(future.map_err(|_| ()).map(|_| ()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> examples/features.rs:118:44
[INFO] [stdout]     |
[INFO] [stdout] 118 |     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout]     |                                            ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 118 -     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout] 118 +     tokio::executor::current_thread::spawn(future.map_err(|_| ()).map(|_| ()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> examples/features.rs:126:44
[INFO] [stdout]     |
[INFO] [stdout] 126 |     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout]     |                                            ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 126 -     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout] 126 +     tokio::executor::current_thread::spawn(future.map_err(|_| ()).map(|_| ()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> examples/features.rs:137:44
[INFO] [stdout]     |
[INFO] [stdout] 137 |     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout]     |                                            ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 137 -     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout] 137 +     tokio::executor::current_thread::spawn(future.map_err(|_| ()).map(|_| ()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> examples/features.rs:147:44
[INFO] [stdout]     |
[INFO] [stdout] 147 |     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout]     |                                            ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 147 -     tokio::executor::current_thread::spawn({ future.map_err(|_| ()).map(|_| ()) })
[INFO] [stdout] 147 +     tokio::executor::current_thread::spawn(future.map_err(|_| ()).map(|_| ()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.14s
[INFO] running `Command { std: "docker" "inspect" "52293860d69ff6c9dbfa3e6f87ce8837e4847cb23495e420ba170beb6f71fb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52293860d69ff6c9dbfa3e6f87ce8837e4847cb23495e420ba170beb6f71fb90", kill_on_drop: false }`
[INFO] [stdout] 52293860d69ff6c9dbfa3e6f87ce8837e4847cb23495e420ba170beb6f71fb90