[INFO] cloning repository https://github.com/JMurph2015/rusty-controller
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JMurph2015/rusty-controller" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJMurph2015%2Frusty-controller", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJMurph2015%2Frusty-controller'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] faff8de19c6b86b414cfe5e78e7681875eeb25e0
[INFO] checking JMurph2015/rusty-controller against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJMurph2015%2Frusty-controller" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JMurph2015/rusty-controller on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking git repo https://github.com/JMurph2015/rusty-controller
[INFO] finished tweaking git repo https://github.com/JMurph2015/rusty-controller
[INFO] tweaked toml for git repo https://github.com/JMurph2015/rusty-controller written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/JMurph2015/rusty-controller already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rs_ws281x v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02b0f40489daf50e5ea58c126356119ee7649777e1acaee5a71788b821d74f28
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "02b0f40489daf50e5ea58c126356119ee7649777e1acaee5a71788b821d74f28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02b0f40489daf50e5ea58c126356119ee7649777e1acaee5a71788b821d74f28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02b0f40489daf50e5ea58c126356119ee7649777e1acaee5a71788b821d74f28", kill_on_drop: false }`
[INFO] [stdout] 02b0f40489daf50e5ea58c126356119ee7649777e1acaee5a71788b821d74f28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbc58ef732bb37f4d352be81b592a5f8e6faa9603005333926566aa05050cb4a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dbc58ef732bb37f4d352be81b592a5f8e6faa9603005333926566aa05050cb4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]     Checking pnet_base v0.22.0
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling pnet v0.22.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling regex-syntax v0.6.5
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling clang-sys v0.23.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.5
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking colored v1.7.0
[INFO] [stderr]     Checking pnet_macros_support v0.22.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]     Checking pnet_sys v0.22.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]     Checking ipnetwork v0.14.0
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking fern v0.5.7
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking pnet_datalink v0.22.0
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]    Compiling bindgen v0.37.4
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]    Compiling cexpr v0.2.3
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling rs_ws281x v0.2.3
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.22.0
[INFO] [stderr]    Compiling pnet_packet v0.22.0
[INFO] [stderr]     Checking pnet_transport v0.22.0
[INFO] [stderr]     Checking rusty_controller v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/main.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     'main_loop: loop {
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/main.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     'main_loop: loop {
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |             let mut ledstrip = self.0.leds_mut(*channel_num);
[INFO] [stdout]    |                 ----^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |             for mut led in ledstrip.iter_mut() {
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |         let mut ledstrip = handler.leds_mut(channel_num.clone());
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |             let mut ledstrip = self.0.leds_mut(*channel_num);
[INFO] [stdout]    |                 ----^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |             for mut led in ledstrip.iter_mut() {
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |         let mut ledstrip = handler.leds_mut(channel_num.clone());
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 02s
[INFO] running `Command { std: "docker" "inspect" "dbc58ef732bb37f4d352be81b592a5f8e6faa9603005333926566aa05050cb4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc58ef732bb37f4d352be81b592a5f8e6faa9603005333926566aa05050cb4a", kill_on_drop: false }`
[INFO] [stdout] dbc58ef732bb37f4d352be81b592a5f8e6faa9603005333926566aa05050cb4a