[INFO] updating cached repository https://github.com/smolkov/epd24rwb
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a1f5a4f1735e4d5704cb4452b7ddd7ad73762231
[INFO] checking smolkov/epd24rwb against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmolkov%2Fepd24rwb" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/smolkov/epd24rwb on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/smolkov/epd24rwb
[INFO] finished tweaking git repo https://github.com/smolkov/epd24rwb
[INFO] tweaked toml for git repo https://github.com/smolkov/epd24rwb written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/smolkov/epd24rwb already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c4e29c73fe702fc5146f260f07a36d1dc78e53bc76595793d4b3948e16ed86f0
[INFO] running `"docker" "start" "-a" "c4e29c73fe702fc5146f260f07a36d1dc78e53bc76595793d4b3948e16ed86f0"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling getrandom v0.1.11
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking checked_int_cast v1.0.0
[INFO] [stderr]     Checking paw-raw v1.0.0
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking async-task v1.0.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking tinybmp v0.1.0
[INFO] [stderr]     Checking tinytga v0.1.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking embedded-graphics v0.4.9
[INFO] [stderr]     Checking ssd1675 v0.1.0
[INFO] [stderr]     Checking profont v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.35
[INFO] [stderr]     Checking chrono v0.4.8
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]     Checking spidev v0.3.0
[INFO] [stderr]     Checking image v0.22.1
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking i2cdev v0.4.2
[INFO] [stderr]     Checking sysfs_gpio v0.5.4
[INFO] [stderr]     Checking qrcode v0.11.0
[INFO] [stderr]     Checking linux-embedded-hal v0.2.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.4
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.9
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling structopt-derive v0.3.0
[INFO] [stderr]    Compiling async-log-attributes v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling paw-attributes v1.0.0
[INFO] [stderr]    Compiling futures-select-macro-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-join-macro-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking paw v1.0.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking async-log v1.1.0
[INFO] [stderr]     Checking async-log v2.0.0
[INFO] [stderr]     Checking structopt v0.3.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-timer v0.3.0
[INFO] [stderr]     Checking async-std v0.99.4
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking femme v1.2.0
[INFO] [stderr]     Checking epd24rwb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/lib.rs:93:47
[INFO] [stderr]    |
[INFO] [stderr] 93 | pub async fn draw(mut events: Receiver<Event>,msg: Receiver<String>) -> io::Result<()> {
[INFO] [stderr]    |                                               ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `page_update`
[INFO] [stderr]    --> src/lib.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |     let page_update = async {
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_page_update`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]    --> src/lib.rs:202:27
[INFO] [stderr]     |
[INFO] [stderr] 202 |         Event::UpdatePage(path)=> {
[INFO] [stderr]     |                           ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]    --> src/lib.rs:241:20
[INFO] [stderr]     |
[INFO] [stderr] 241 | pub async fn start(config:config::Config,msg: Receiver<String> ) -> io::Result<()> {
[INFO] [stderr]     |                    ^^^^^^ help: consider prefixing with an underscore: `_config`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `draw`
[INFO] [stderr]    --> src/lib.rs:244:10
[INFO] [stderr]     |
[INFO] [stderr] 244 |     let  draw= task::spawn(draw(receiver,msg));
[INFO] [stderr]     |          ^^^^ help: consider prefixing with an underscore: `_draw`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:247:13
[INFO] [stderr]     |
[INFO] [stderr] 247 |         let mut event = Event::UpdatePage(PathBuf::from("./dashboard.page"));
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `EpdDisplay`
[INFO] [stderr]   --> src/lib.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | / type EpdDisplay<'a> = ssd1675::display::Display<
[INFO] [stderr] 83 | |         'a,
[INFO] [stderr] 84 | |         ssd1675::interface::Interface<
[INFO] [stderr] 85 | |             linux_embedded_hal::Spidev,
[INFO] [stderr] ...  |
[INFO] [stderr] 90 | |         >,
[INFO] [stderr] 91 | |     >;
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:248:9
[INFO] [stderr]     |
[INFO] [stderr] 248 |         sender.send(event).await;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/lib.rs:93:47
[INFO] [stderr]    |
[INFO] [stderr] 93 | pub async fn draw(mut events: Receiver<Event>,msg: Receiver<String>) -> io::Result<()> {
[INFO] [stderr]    |                                               ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `page_update`
[INFO] [stderr]    --> src/lib.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |     let page_update = async {
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_page_update`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]    --> src/lib.rs:202:27
[INFO] [stderr]     |
[INFO] [stderr] 202 |         Event::UpdatePage(path)=> {
[INFO] [stderr]     |                           ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]    --> src/lib.rs:241:20
[INFO] [stderr]     |
[INFO] [stderr] 241 | pub async fn start(config:config::Config,msg: Receiver<String> ) -> io::Result<()> {
[INFO] [stderr]     |                    ^^^^^^ help: consider prefixing with an underscore: `_config`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `draw`
[INFO] [stderr]    --> src/lib.rs:244:10
[INFO] [stderr]     |
[INFO] [stderr] 244 |     let  draw= task::spawn(draw(receiver,msg));
[INFO] [stderr]     |          ^^^^ help: consider prefixing with an underscore: `_draw`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:247:13
[INFO] [stderr]     |
[INFO] [stderr] 247 |         let mut event = Event::UpdatePage(PathBuf::from("./dashboard.page"));
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `EpdDisplay`
[INFO] [stderr]   --> src/lib.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | / type EpdDisplay<'a> = ssd1675::display::Display<
[INFO] [stderr] 83 | |         'a,
[INFO] [stderr] 84 | |         ssd1675::interface::Interface<
[INFO] [stderr] 85 | |             linux_embedded_hal::Spidev,
[INFO] [stderr] ...  |
[INFO] [stderr] 90 | |         >,
[INFO] [stderr] 91 | |     >;
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:248:9
[INFO] [stderr]     |
[INFO] [stderr] 248 |         sender.send(event).await;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 36s
[INFO] running `"docker" "inspect" "c4e29c73fe702fc5146f260f07a36d1dc78e53bc76595793d4b3948e16ed86f0"`
[INFO] running `"docker" "rm" "-f" "c4e29c73fe702fc5146f260f07a36d1dc78e53bc76595793d4b3948e16ed86f0"`
[INFO] [stdout] c4e29c73fe702fc5146f260f07a36d1dc78e53bc76595793d4b3948e16ed86f0