[INFO] fetching crate postmill 0.2.7...
[INFO] checking postmill-0.2.7 against try#377afada703be70d3fdff9164a481570a3cba7fe for pr-113240
[INFO] extracting crate postmill 0.2.7 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate postmill 0.2.7 on toolchain 377afada703be70d3fdff9164a481570a3cba7fe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate postmill 0.2.7
[INFO] finished tweaking crates.io crate postmill 0.2.7
[INFO] tweaked toml for crates.io crate postmill 0.2.7 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+377afada703be70d3fdff9164a481570a3cba7fe" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c32d98a9d7e731683aef34f3c1746c9b236ff93276461c4a54586a16bfe85cb
[INFO] running `Command { std: "docker" "start" "-a" "9c32d98a9d7e731683aef34f3c1746c9b236ff93276461c4a54586a16bfe85cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c32d98a9d7e731683aef34f3c1746c9b236ff93276461c4a54586a16bfe85cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c32d98a9d7e731683aef34f3c1746c9b236ff93276461c4a54586a16bfe85cb", kill_on_drop: false }`
[INFO] [stdout] 9c32d98a9d7e731683aef34f3c1746c9b236ff93276461c4a54586a16bfe85cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 954c9cb094cb72618e188f585e9fc709aefb5e6c6f20f6297cb45b64b0d8acf3
[INFO] running `Command { std: "docker" "start" "-a" "954c9cb094cb72618e188f585e9fc709aefb5e6c6f20f6297cb45b64b0d8acf3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]     Checking string_cache v0.7.5
[INFO] [stderr]     Checking cookie v0.11.5
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]    Compiling serde_json v1.0.99
[INFO] [stderr]    Compiling markup5ever v0.8.1
[INFO] [stderr]     Checking html5ever v0.23.0
[INFO] [stderr]     Checking select v0.4.3
[INFO] [stderr]     Checking postmill v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:90:54
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn new(root_url: &str) -> Result<Client, 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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn new(root_url: &str) -> Result<Client, 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:105:57
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn forums(&mut self) -> Result<Vec<String>, 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] 105 |     pub fn forums(&mut self) -> Result<Vec<String>, 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:114:91
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn submissions_from_page(&mut self, url: &str) -> Result<Vec<SubmissionInfo>, 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] 114 |     pub fn submissions_from_page(&mut self, url: &str) -> Result<Vec<SubmissionInfo>, 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:149:126
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn submissions_from_page_until(&mut self, url: &str, date: DateTime<FixedOffset>) -> Result<Vec<SubmissionInfo>, 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] 149 |     pub fn submissions_from_page_until(&mut self, url: &str, date: DateTime<FixedOffset>) -> Result<Vec<SubmissionInfo>, 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:230:87
[INFO] [stdout]     |
[INFO] [stdout] 230 |     pub fn submission_urls_from_page(&mut self, url: &str) -> Result<Vec<String>, 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] 230 |     pub fn submission_urls_from_page(&mut self, url: &str) -> Result<Vec<String>, 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:242:99
[INFO] [stdout]     |
[INFO] [stdout] 242 |     pub fn comments_until(&mut self, date: DateTime<FixedOffset>) -> Result<Vec<CommentInfo>, 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] 242 |     pub fn comments_until(&mut self, date: DateTime<FixedOffset>) -> Result<Vec<CommentInfo>, 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:350:79
[INFO] [stdout]     |
[INFO] [stdout] 350 |     pub fn login(&mut self, username: &str, password: &str) -> Result<(), 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] 350 |     pub fn login(&mut self, username: &str, password: &str) -> Result<(), 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:379:108
[INFO] [stdout]     |
[INFO] [stdout] 379 |     pub fn reply_comment(&mut self, submission_id: u64, comment_id: u64, comment: &str) -> 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] 379 |     pub fn reply_comment(&mut self, submission_id: u64, comment_id: u64, comment: &str) -> 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:430:90
[INFO] [stdout]     |
[INFO] [stdout] 430 |     pub fn comment_post(&mut self, submission_id: u64, comment: &str) -> 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] 430 |     pub fn comment_post(&mut self, submission_id: u64, comment: &str) -> 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:479:103
[INFO] [stdout]     |
[INFO] [stdout] 479 |     pub fn submit_post(&mut self, forum: &str, url: &str, title: &str, body: &str) -> 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] 479 |     pub fn submit_post(&mut self, forum: &str, url: &str, title: &str, body: &str) -> 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:527:132
[INFO] [stdout]     |
[INFO] [stdout] 527 |     pub fn edit_post(&mut self, submission_id: u64, url: Option<&str>, title: Option<&str>, body: Option<&str>) -> 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] 527 |     pub fn edit_post(&mut self, submission_id: u64, url: Option<&str>, title: Option<&str>, body: Option<&str>) -> 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:601:74
[INFO] [stdout]     |
[INFO] [stdout] 601 |     fn get_full_url(&mut self, submission_id: u64) -> Result<String, 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] 601 |     fn get_full_url(&mut self, submission_id: u64) -> Result<String, 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:90:54
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn new(root_url: &str) -> Result<Client, 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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn new(root_url: &str) -> Result<Client, 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:105:57
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn forums(&mut self) -> Result<Vec<String>, 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] 105 |     pub fn forums(&mut self) -> Result<Vec<String>, 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:114:91
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn submissions_from_page(&mut self, url: &str) -> Result<Vec<SubmissionInfo>, 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] 114 |     pub fn submissions_from_page(&mut self, url: &str) -> Result<Vec<SubmissionInfo>, 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:149:126
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn submissions_from_page_until(&mut self, url: &str, date: DateTime<FixedOffset>) -> Result<Vec<SubmissionInfo>, 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] 149 |     pub fn submissions_from_page_until(&mut self, url: &str, date: DateTime<FixedOffset>) -> Result<Vec<SubmissionInfo>, 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:230:87
[INFO] [stdout]     |
[INFO] [stdout] 230 |     pub fn submission_urls_from_page(&mut self, url: &str) -> Result<Vec<String>, 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] 230 |     pub fn submission_urls_from_page(&mut self, url: &str) -> Result<Vec<String>, 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:242:99
[INFO] [stdout]     |
[INFO] [stdout] 242 |     pub fn comments_until(&mut self, date: DateTime<FixedOffset>) -> Result<Vec<CommentInfo>, 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] 242 |     pub fn comments_until(&mut self, date: DateTime<FixedOffset>) -> Result<Vec<CommentInfo>, 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:350:79
[INFO] [stdout]     |
[INFO] [stdout] 350 |     pub fn login(&mut self, username: &str, password: &str) -> Result<(), 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] 350 |     pub fn login(&mut self, username: &str, password: &str) -> Result<(), 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:379:108
[INFO] [stdout]     |
[INFO] [stdout] 379 |     pub fn reply_comment(&mut self, submission_id: u64, comment_id: u64, comment: &str) -> 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] 379 |     pub fn reply_comment(&mut self, submission_id: u64, comment_id: u64, comment: &str) -> 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:430:90
[INFO] [stdout]     |
[INFO] [stdout] 430 |     pub fn comment_post(&mut self, submission_id: u64, comment: &str) -> 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] 430 |     pub fn comment_post(&mut self, submission_id: u64, comment: &str) -> 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:479:103
[INFO] [stdout]     |
[INFO] [stdout] 479 |     pub fn submit_post(&mut self, forum: &str, url: &str, title: &str, body: &str) -> 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] 479 |     pub fn submit_post(&mut self, forum: &str, url: &str, title: &str, body: &str) -> 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:527:132
[INFO] [stdout]     |
[INFO] [stdout] 527 |     pub fn edit_post(&mut self, submission_id: u64, url: Option<&str>, title: Option<&str>, body: Option<&str>) -> 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] 527 |     pub fn edit_post(&mut self, submission_id: u64, url: Option<&str>, title: Option<&str>, body: Option<&str>) -> 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:601:74
[INFO] [stdout]     |
[INFO] [stdout] 601 |     fn get_full_url(&mut self, submission_id: u64) -> Result<String, 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] 601 |     fn get_full_url(&mut self, submission_id: u64) -> Result<String, Box<dyn Error>> {
[INFO] [stdout]     |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:414:42
[INFO] [stdout]     |
[INFO] [stdout] 414 |                 Some(err_elem) => panic!(format!("Submitting comment failed with error: {}", err_elem.text())),
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 414 -                 Some(err_elem) => panic!(format!("Submitting comment failed with error: {}", err_elem.text())),
[INFO] [stdout] 414 +                 Some(err_elem) => panic!("Submitting comment failed with error: {}", err_elem.text()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:414:42
[INFO] [stdout]     |
[INFO] [stdout] 414 |                 Some(err_elem) => panic!(format!("Submitting comment failed with error: {}", err_elem.text())),
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 414 -                 Some(err_elem) => panic!(format!("Submitting comment failed with error: {}", err_elem.text())),
[INFO] [stdout] 414 +                 Some(err_elem) => panic!("Submitting comment failed with error: {}", err_elem.text()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:465:42
[INFO] [stdout]     |
[INFO] [stdout] 465 |                 Some(err_elem) => panic!(format!("Submitting comment failed with error: {}", err_elem.text())),
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 465 -                 Some(err_elem) => panic!(format!("Submitting comment failed with error: {}", err_elem.text())),
[INFO] [stdout] 465 +                 Some(err_elem) => panic!("Submitting comment failed with error: {}", err_elem.text()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:515:38
[INFO] [stdout]     |
[INFO] [stdout] 515 |             Some(err_elem) => panic!(format!("Submitting post failed with error: {}", err_elem.text())),
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 515 -             Some(err_elem) => panic!(format!("Submitting post failed with error: {}", err_elem.text())),
[INFO] [stdout] 515 +             Some(err_elem) => panic!("Submitting post failed with error: {}", err_elem.text()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:591:38
[INFO] [stdout]     |
[INFO] [stdout] 591 |             Some(err_elem) => panic!(format!("Submitting post failed with error: {}", err_elem.text())),
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 591 -             Some(err_elem) => panic!(format!("Submitting post failed with error: {}", err_elem.text())),
[INFO] [stdout] 591 +             Some(err_elem) => panic!("Submitting post failed with error: {}", err_elem.text()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:465:42
[INFO] [stdout]     |
[INFO] [stdout] 465 |                 Some(err_elem) => panic!(format!("Submitting comment failed with error: {}", err_elem.text())),
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 465 -                 Some(err_elem) => panic!(format!("Submitting comment failed with error: {}", err_elem.text())),
[INFO] [stdout] 465 +                 Some(err_elem) => panic!("Submitting comment failed with error: {}", err_elem.text()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:515:38
[INFO] [stdout]     |
[INFO] [stdout] 515 |             Some(err_elem) => panic!(format!("Submitting post failed with error: {}", err_elem.text())),
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 515 -             Some(err_elem) => panic!(format!("Submitting post failed with error: {}", err_elem.text())),
[INFO] [stdout] 515 +             Some(err_elem) => panic!("Submitting post failed with error: {}", err_elem.text()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:591:38
[INFO] [stdout]     |
[INFO] [stdout] 591 |             Some(err_elem) => panic!(format!("Submitting post failed with error: {}", err_elem.text())),
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 591 -             Some(err_elem) => panic!(format!("Submitting post failed with error: {}", err_elem.text())),
[INFO] [stdout] 591 +             Some(err_elem) => panic!("Submitting post failed with error: {}", err_elem.text()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:660:20
[INFO] [stdout]     |
[INFO] [stdout] 660 |             panic!(format!("Received a server error for POST in path {}", path));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 660 -             panic!(format!("Received a server error for POST in path {}", path));
[INFO] [stdout] 660 +             panic!("Received a server error for POST in path {}", path);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:660:20
[INFO] [stdout]     |
[INFO] [stdout] 660 |             panic!(format!("Received a server error for POST in path {}", path));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 660 -             panic!(format!("Received a server error for POST in path {}", path));
[INFO] [stdout] 660 +             panic!("Received a server error for POST in path {}", path);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `chrono::FixedOffset::east`: use `east_opt()` instead
[INFO] [stdout]   --> tests/scrape.rs:30:90
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let time_2days_before = (Utc::now() - Duration::days(2)).with_timezone(&FixedOffset::east(0));
[INFO] [stdout]    |                                                                                          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `chrono::FixedOffset::east`: use `east_opt()` instead
[INFO] [stdout]   --> tests/scrape.rs:37:90
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let time_2days_before = (Utc::now() - Duration::days(2)).with_timezone(&FixedOffset::east(0));
[INFO] [stdout]    |                                                                                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `chrono::FixedOffset::east`: use `east_opt()` instead
[INFO] [stdout]   --> tests/scrape.rs:44:90
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let time_2days_before = (Utc::now() - Duration::days(2)).with_timezone(&FixedOffset::east(0));
[INFO] [stdout]    |                                                                                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `chrono::FixedOffset::east`: use `east_opt()` instead
[INFO] [stdout]   --> tests/scrape.rs:51:90
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let time_2days_before = (Utc::now() - Duration::days(2)).with_timezone(&FixedOffset::east(0));
[INFO] [stdout]    |                                                                                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.79s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: html5ever v0.23.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "954c9cb094cb72618e188f585e9fc709aefb5e6c6f20f6297cb45b64b0d8acf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954c9cb094cb72618e188f585e9fc709aefb5e6c6f20f6297cb45b64b0d8acf3", kill_on_drop: false }`
[INFO] [stdout] 954c9cb094cb72618e188f585e9fc709aefb5e6c6f20f6297cb45b64b0d8acf3