[INFO] cloning repository https://github.com/atayozcan/rusty-editor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/atayozcan/rusty-editor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatayozcan%2Frusty-editor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatayozcan%2Frusty-editor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a91ba71a43c2538ece8c660571c558616fef2dc
[INFO] checking atayozcan/rusty-editor against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatayozcan%2Frusty-editor" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/atayozcan/rusty-editor 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 git repo https://github.com/atayozcan/rusty-editor
[INFO] finished tweaking git repo https://github.com/atayozcan/rusty-editor
[INFO] tweaked toml for git repo https://github.com/atayozcan/rusty-editor written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/atayozcan/rusty-editor 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 23f79ba8ec8a0082c17453c8f55bc8d9dec7a755ed8239ed3a2e9b5f5f29c55b
[INFO] running `Command { std: "docker" "start" "-a" "23f79ba8ec8a0082c17453c8f55bc8d9dec7a755ed8239ed3a2e9b5f5f29c55b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23f79ba8ec8a0082c17453c8f55bc8d9dec7a755ed8239ed3a2e9b5f5f29c55b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23f79ba8ec8a0082c17453c8f55bc8d9dec7a755ed8239ed3a2e9b5f5f29c55b", kill_on_drop: false }`
[INFO] [stdout] 23f79ba8ec8a0082c17453c8f55bc8d9dec7a755ed8239ed3a2e9b5f5f29c55b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f583973e41b769cc2228664053ecab4c67bf3ce001b8ff709c731984a7dbc522
[INFO] running `Command { std: "docker" "start" "-a" "f583973e41b769cc2228664053ecab4c67bf3ce001b8ff709c731984a7dbc522", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking tui v0.15.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking texteditor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_handle`, `ignore_exit_key`, and `tick_handle` are never read
[INFO] [stdout]   --> src/event.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Events {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 18 |     rx: mpsc::Receiver<Event<Key>>,
[INFO] [stdout] 19 |     input_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 20 |     ignore_exit_key: Arc<AtomicBool>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 21 |     tick_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `disable_exit_key` and `enable_exit_key` are never used
[INFO] [stdout]   --> src/event.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Events {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn disable_exit_key(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn enable_exit_key(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/util.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl RandomSignal {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(lower: u64, upper: u64) -> RandomSignal {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/util.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl SinSignal {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 36 |     pub fn new(interval: f64, period: f64, scale: f64) -> SinSignal {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TabsState` is never constructed
[INFO] [stdout]   --> src/util.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub struct TabsState<'a> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `next`, and `previous` are never used
[INFO] [stdout]   --> src/util.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl<'a> TabsState<'a> {
[INFO] [stdout]    | ---------------------- associated items in this implementation
[INFO] [stdout] 61 |     pub fn new(titles: Vec<&'a str>) -> TabsState {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn next(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn previous(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StatefulList` is never constructed
[INFO] [stdout]   --> src/util.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct StatefulList<T> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `with_items`, `next`, `previous`, and `unselect` are never used
[INFO] [stdout]    --> src/util.rs:83:12
[INFO] [stdout]     |
[INFO] [stdout] 82  | impl<T> StatefulList<T> {
[INFO] [stdout]     | ----------------------- associated items in this implementation
[INFO] [stdout] 83  |     pub fn new() -> StatefulList<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 90  |     pub fn with_items(items: Vec<T>) -> StatefulList<T> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 97  |     pub fn next(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 111 |     pub fn previous(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub fn unselect(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_handle`, `ignore_exit_key`, and `tick_handle` are never read
[INFO] [stdout]   --> src/event.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Events {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 18 |     rx: mpsc::Receiver<Event<Key>>,
[INFO] [stdout] 19 |     input_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 20 |     ignore_exit_key: Arc<AtomicBool>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 21 |     tick_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `disable_exit_key` and `enable_exit_key` are never used
[INFO] [stdout]   --> src/event.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Events {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn disable_exit_key(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn enable_exit_key(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/util.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl RandomSignal {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(lower: u64, upper: u64) -> RandomSignal {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/util.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl SinSignal {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 36 |     pub fn new(interval: f64, period: f64, scale: f64) -> SinSignal {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TabsState` is never constructed
[INFO] [stdout]   --> src/util.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub struct TabsState<'a> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `next`, and `previous` are never used
[INFO] [stdout]   --> src/util.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl<'a> TabsState<'a> {
[INFO] [stdout]    | ---------------------- associated items in this implementation
[INFO] [stdout] 61 |     pub fn new(titles: Vec<&'a str>) -> TabsState {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn next(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn previous(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StatefulList` is never constructed
[INFO] [stdout]   --> src/util.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct StatefulList<T> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `with_items`, `next`, `previous`, and `unselect` are never used
[INFO] [stdout]    --> src/util.rs:83:12
[INFO] [stdout]     |
[INFO] [stdout] 82  | impl<T> StatefulList<T> {
[INFO] [stdout]     | ----------------------- associated items in this implementation
[INFO] [stdout] 83  |     pub fn new() -> StatefulList<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 90  |     pub fn with_items(items: Vec<T>) -> StatefulList<T> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 97  |     pub fn next(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 111 |     pub fn previous(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub fn unselect(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.72s
[INFO] running `Command { std: "docker" "inspect" "f583973e41b769cc2228664053ecab4c67bf3ce001b8ff709c731984a7dbc522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f583973e41b769cc2228664053ecab4c67bf3ce001b8ff709c731984a7dbc522", kill_on_drop: false }`
[INFO] [stdout] f583973e41b769cc2228664053ecab4c67bf3ce001b8ff709c731984a7dbc522