[INFO] fetching crate rust_twitter_bot_lib 0.1.2...
[INFO] testing rust_twitter_bot_lib-0.1.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rust_twitter_bot_lib 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rust_twitter_bot_lib 0.1.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_twitter_bot_lib 0.1.2
[INFO] finished tweaking crates.io crate rust_twitter_bot_lib 0.1.2
[INFO] tweaked toml for crates.io crate rust_twitter_bot_lib 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded oauthcli v1.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccfbf46fae8150b01fb12355a79ed88fcf19cb025be8861c50d6aedc71b950a9
[INFO] running `Command { std: "docker" "start" "-a" "ccfbf46fae8150b01fb12355a79ed88fcf19cb025be8861c50d6aedc71b950a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccfbf46fae8150b01fb12355a79ed88fcf19cb025be8861c50d6aedc71b950a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccfbf46fae8150b01fb12355a79ed88fcf19cb025be8861c50d6aedc71b950a9", kill_on_drop: false }`
[INFO] [stdout] ccfbf46fae8150b01fb12355a79ed88fcf19cb025be8861c50d6aedc71b950a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 210f74860d23764ee352d71e4507df3b3fba8573b98554d6112c1bfe97824f57
[INFO] running `Command { std: "docker" "start" "-a" "210f74860d23764ee352d71e4507df3b3fba8573b98554d6112c1bfe97824f57", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling oauthcli v1.0.4
[INFO] [stderr]    Compiling rust_twitter_bot_lib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:90:42
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn is_connected(&self) -> Option<Box<Error>> {
[INFO] [stdout]    |                                          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 -     fn is_connected(&self) -> Option<Box<Error>> {
[INFO] [stdout] 90 +     fn is_connected(&self) -> Option<Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:107:24
[INFO] [stdout]     |
[INFO] [stdout] 107 |     ) -> Result<T, Box<Error>> {
[INFO] [stdout]     |                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 107 -     ) -> Result<T, Box<Error>> {
[INFO] [stdout] 107 +     ) -> Result<T, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:150:63
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn upload_file(&self, path: &Path) -> Result<u64, Box<Error>> {
[INFO] [stdout]     |                                                               ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 150 -     pub fn upload_file(&self, path: &Path) -> Result<u64, Box<Error>> {
[INFO] [stdout] 150 +     pub fn upload_file(&self, path: &Path) -> Result<u64, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:193:45
[INFO] [stdout]     |
[INFO] [stdout] 193 |     ) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout]     |                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 193 -     ) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout] 193 +     ) -> Result<tweet_structure::Tweet, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:213:83
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn get_tweet(&self, tweet_id: &str) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout]     |                                                                                   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 213 -     pub fn get_tweet(&self, tweet_id: &str) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout] 213 +     pub fn get_tweet(&self, tweet_id: &str) -> Result<tweet_structure::Tweet, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:226:50
[INFO] [stdout]     |
[INFO] [stdout] 226 |     ) -> Result<Vec<tweet_structure::Tweet>, Box<Error>> {
[INFO] [stdout]     |                                                  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 226 -     ) -> Result<Vec<tweet_structure::Tweet>, Box<Error>> {
[INFO] [stdout] 226 +     ) -> Result<Vec<tweet_structure::Tweet>, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:262:32
[INFO] [stdout]     |
[INFO] [stdout] 262 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 262 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 262 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.16s
[INFO] running `Command { std: "docker" "inspect" "210f74860d23764ee352d71e4507df3b3fba8573b98554d6112c1bfe97824f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "210f74860d23764ee352d71e4507df3b3fba8573b98554d6112c1bfe97824f57", kill_on_drop: false }`
[INFO] [stdout] 210f74860d23764ee352d71e4507df3b3fba8573b98554d6112c1bfe97824f57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a453c34c84ef63778b742c331a2a8561a856da683dbe0ac87d71f31df253cd53
[INFO] running `Command { std: "docker" "start" "-a" "a453c34c84ef63778b742c331a2a8561a856da683dbe0ac87d71f31df253cd53", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_twitter_bot_lib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:90:42
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn is_connected(&self) -> Option<Box<Error>> {
[INFO] [stdout]    |                                          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 -     fn is_connected(&self) -> Option<Box<Error>> {
[INFO] [stdout] 90 +     fn is_connected(&self) -> Option<Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:107:24
[INFO] [stdout]     |
[INFO] [stdout] 107 |     ) -> Result<T, Box<Error>> {
[INFO] [stdout]     |                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 107 -     ) -> Result<T, Box<Error>> {
[INFO] [stdout] 107 +     ) -> Result<T, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:150:63
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn upload_file(&self, path: &Path) -> Result<u64, Box<Error>> {
[INFO] [stdout]     |                                                               ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 150 -     pub fn upload_file(&self, path: &Path) -> Result<u64, Box<Error>> {
[INFO] [stdout] 150 +     pub fn upload_file(&self, path: &Path) -> Result<u64, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:193:45
[INFO] [stdout]     |
[INFO] [stdout] 193 |     ) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout]     |                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 193 -     ) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout] 193 +     ) -> Result<tweet_structure::Tweet, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:213:83
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn get_tweet(&self, tweet_id: &str) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout]     |                                                                                   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 213 -     pub fn get_tweet(&self, tweet_id: &str) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout] 213 +     pub fn get_tweet(&self, tweet_id: &str) -> Result<tweet_structure::Tweet, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:226:50
[INFO] [stdout]     |
[INFO] [stdout] 226 |     ) -> Result<Vec<tweet_structure::Tweet>, Box<Error>> {
[INFO] [stdout]     |                                                  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 226 -     ) -> Result<Vec<tweet_structure::Tweet>, Box<Error>> {
[INFO] [stdout] 226 +     ) -> Result<Vec<tweet_structure::Tweet>, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:262:32
[INFO] [stdout]     |
[INFO] [stdout] 262 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 262 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 262 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `YOUR_CONSUMER_KEY` in this scope
[INFO] [stdout]  --> examples/simple-tweet.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 |         .consumer_key(YOUR_CONSUMER_KEY)
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `YOUR_CONSUMER_SECRET_KEY` in this scope
[INFO] [stdout]  --> examples/simple-tweet.rs:6:30
[INFO] [stdout]   |
[INFO] [stdout] 6 |         .consumer_secret_key(YOUR_CONSUMER_SECRET_KEY)
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `YOUR_ACCESS_TOKEN` in this scope
[INFO] [stdout]  --> examples/simple-tweet.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 |         .access_token(YOUR_ACCESS_TOKEN)
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `YOUR_SECRET_ACCESS_TOKEN` in this scope
[INFO] [stdout]  --> examples/simple-tweet.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 |         .secret_access_token(YOUR_SECRET_ACCESS_TOKEN);
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_twitter_bot_lib` due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0425]: cannot find value `YOUR_CONSUMER_KEY` in this scope
[INFO] [stdout]  --> examples/upload_tweet.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 |         .consumer_key(YOUR_CONSUMER_KEY)
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `YOUR_CONSUMER_SECRET_KEY` in this scope
[INFO] [stdout]  --> examples/upload_tweet.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 |         .consumer_secret_key(YOUR_CONSUMER_SECRET_KEY)
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `YOUR_ACCESS_TOKEN` in this scope
[INFO] [stdout]  --> examples/upload_tweet.rs:9:23
[INFO] [stdout]   |
[INFO] [stdout] 9 |         .access_token(YOUR_ACCESS_TOKEN)
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `YOUR_SECRET_ACCESS_TOKEN` in this scope
[INFO] [stdout]   --> examples/upload_tweet.rs:10:30
[INFO] [stdout]    |
[INFO] [stdout] 10 |         .secret_access_token(YOUR_SECRET_ACCESS_TOKEN);
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:90:42
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn is_connected(&self) -> Option<Box<Error>> {
[INFO] [stdout]    |                                          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 -     fn is_connected(&self) -> Option<Box<Error>> {
[INFO] [stdout] 90 +     fn is_connected(&self) -> Option<Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:107:24
[INFO] [stdout]     |
[INFO] [stdout] 107 |     ) -> Result<T, Box<Error>> {
[INFO] [stdout]     |                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 107 -     ) -> Result<T, Box<Error>> {
[INFO] [stdout] 107 +     ) -> Result<T, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:150:63
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn upload_file(&self, path: &Path) -> Result<u64, Box<Error>> {
[INFO] [stdout]     |                                                               ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 150 -     pub fn upload_file(&self, path: &Path) -> Result<u64, Box<Error>> {
[INFO] [stdout] 150 +     pub fn upload_file(&self, path: &Path) -> Result<u64, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:193:45
[INFO] [stdout]     |
[INFO] [stdout] 193 |     ) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout]     |                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 193 -     ) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout] 193 +     ) -> Result<tweet_structure::Tweet, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:213:83
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn get_tweet(&self, tweet_id: &str) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout]     |                                                                                   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 213 -     pub fn get_tweet(&self, tweet_id: &str) -> Result<tweet_structure::Tweet, Box<Error>> {
[INFO] [stdout] 213 +     pub fn get_tweet(&self, tweet_id: &str) -> Result<tweet_structure::Tweet, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:226:50
[INFO] [stdout]     |
[INFO] [stdout] 226 |     ) -> Result<Vec<tweet_structure::Tweet>, Box<Error>> {
[INFO] [stdout]     |                                                  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 226 -     ) -> Result<Vec<tweet_structure::Tweet>, Box<Error>> {
[INFO] [stdout] 226 +     ) -> Result<Vec<tweet_structure::Tweet>, Box<dyn Error>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:262:32
[INFO] [stdout]     |
[INFO] [stdout] 262 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 262 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 262 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a453c34c84ef63778b742c331a2a8561a856da683dbe0ac87d71f31df253cd53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a453c34c84ef63778b742c331a2a8561a856da683dbe0ac87d71f31df253cd53", kill_on_drop: false }`
[INFO] [stdout] a453c34c84ef63778b742c331a2a8561a856da683dbe0ac87d71f31df253cd53