[INFO] cloning repository https://github.com/matthhan/rssidiot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthhan/rssidiot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthhan%2Frssidiot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthhan%2Frssidiot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 720360ab0664def967c2bac61163cafb2e3a0025
[INFO] checking matthhan/rssidiot against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthhan%2Frssidiot" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matthhan/rssidiot on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matthhan/rssidiot
[INFO] finished tweaking git repo https://github.com/matthhan/rssidiot
[INFO] tweaked toml for git repo https://github.com/matthhan/rssidiot written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/matthhan/rssidiot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.68
[INFO] [stderr]   Downloaded serde v1.0.68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d77b9be4888d88f62a4dabf9bc72b062a044ef23d1021ea76742ac9d5098a3c4
[INFO] running `Command { std: "docker" "start" "-a" "d77b9be4888d88f62a4dabf9bc72b062a044ef23d1021ea76742ac9d5098a3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d77b9be4888d88f62a4dabf9bc72b062a044ef23d1021ea76742ac9d5098a3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d77b9be4888d88f62a4dabf9bc72b062a044ef23d1021ea76742ac9d5098a3c4", kill_on_drop: false }`
[INFO] [stdout] d77b9be4888d88f62a4dabf9bc72b062a044ef23d1021ea76742ac9d5098a3c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7d08214f8bd570daa0022d691e708b4d5e9c9fb1b389480a7281a82a70d55d3
[INFO] running `Command { std: "docker" "start" "-a" "f7d08214f8bd570daa0022d691e708b4d5e9c9fb1b389480a7281a82a70d55d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.68
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling serde_derive v1.0.68
[INFO] [stderr]     Checking serde_json v1.0.22
[INFO] [stderr]     Checking rssidiot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/circular_buffer.rs:81:44
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn replace_at_index(&self,ind:usize,f:&Fn(Option<T>) -> T) -> CircularBuffer<T> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn replace_at_index(&self,ind:usize,f:&dyn Fn(Option<T>) -> T) -> CircularBuffer<T> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/can_replace_at_index.rs:3:49
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn replace_at_index(&self, index:usize, f: &Fn(Option<T>) -> T) -> 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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn replace_at_index(&self, index:usize, f: &dyn Fn(Option<T>) -> T) -> Self;
[INFO] [stdout]   |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/can_replace_at_index.rs:6:44
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn replace_at_index(&self,ind:usize,f:&Fn(Option<T>) -> T) -> Vec<T> {
[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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn replace_at_index(&self,ind:usize,f:&dyn Fn(Option<T>) -> T) -> Vec<T> {
[INFO] [stdout]   |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/circular_buffer.rs:81:44
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn replace_at_index(&self,ind:usize,f:&Fn(Option<T>) -> T) -> CircularBuffer<T> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn replace_at_index(&self,ind:usize,f:&dyn Fn(Option<T>) -> T) -> CircularBuffer<T> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/can_replace_at_index.rs:3:49
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn replace_at_index(&self, index:usize, f: &Fn(Option<T>) -> T) -> 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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn replace_at_index(&self, index:usize, f: &dyn Fn(Option<T>) -> T) -> Self;
[INFO] [stdout]   |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/can_replace_at_index.rs:6:44
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn replace_at_index(&self,ind:usize,f:&Fn(Option<T>) -> T) -> Vec<T> {
[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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn replace_at_index(&self,ind:usize,f:&dyn Fn(Option<T>) -> T) -> Vec<T> {
[INFO] [stdout]   |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/article.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Article {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn new(title: String, url: String) -> Article {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add_article` are never used
[INFO] [stdout]   --> src/feed.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Feed {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(name:String,url:String) -> Feed {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn add_article(self,art:Article) -> Feed {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add` are never used
[INFO] [stdout]   --> src/circular_buffer.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<T> CircularBuffer<T>  where T:Clone {
[INFO] [stdout]    | ---------------------------------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn new(size:usize) -> CircularBuffer<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn add(self,thing: T) -> CircularBuffer<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add_feed` are never used
[INFO] [stdout]   --> src/application.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl ApplicationState {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn new() -> ApplicationState {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn add_feed(self, feed:Feed)-> ApplicationState {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/circular_buffer.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |         for x in buf.iter() {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/circular_buffer.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |         for x in buf.iter() {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_article` is never used
[INFO] [stdout]   --> src/feed.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Feed {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn add_article(self,art:Article) -> Feed {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_feed` is never used
[INFO] [stdout]   --> src/application.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl ApplicationState {
[INFO] [stdout]    | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn add_feed(self, feed:Feed)-> ApplicationState {
[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 3.19s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "f7d08214f8bd570daa0022d691e708b4d5e9c9fb1b389480a7281a82a70d55d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7d08214f8bd570daa0022d691e708b4d5e9c9fb1b389480a7281a82a70d55d3", kill_on_drop: false }`
[INFO] [stdout] f7d08214f8bd570daa0022d691e708b4d5e9c9fb1b389480a7281a82a70d55d3
