[INFO] cloning repository https://github.com/apoloval/avionica-zerofs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/apoloval/avionica-zerofs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapoloval%2Favionica-zerofs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapoloval%2Favionica-zerofs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3943885cb29d043b1c5f4c00c6b3b233dc594d7
[INFO] checking apoloval/avionica-zerofs against master#b359ccf1b0b7b2d2c1c4932344b806e68bd053a9 for pr-105483
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapoloval%2Favionica-zerofs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/apoloval/avionica-zerofs on toolchain b359ccf1b0b7b2d2c1c4932344b806e68bd053a9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/apoloval/avionica-zerofs
[INFO] finished tweaking git repo https://github.com/apoloval/avionica-zerofs
[INFO] tweaked toml for git repo https://github.com/apoloval/avionica-zerofs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/apoloval/avionica-zerofs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.8
[INFO] [stderr]   Downloaded metadeps v1.1.1
[INFO] [stderr]   Downloaded serde v1.0.8
[INFO] [stderr]   Downloaded toml v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a63c6930450be11bbcb968c3a735d86dd912546f85cb59492b459dd29d45d955
[INFO] running `Command { std: "docker" "start" "-a" "a63c6930450be11bbcb968c3a735d86dd912546f85cb59492b459dd29d45d955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a63c6930450be11bbcb968c3a735d86dd912546f85cb59492b459dd29d45d955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a63c6930450be11bbcb968c3a735d86dd912546f85cb59492b459dd29d45d955", kill_on_drop: false }`
[INFO] [stdout] a63c6930450be11bbcb968c3a735d86dd912546f85cb59492b459dd29d45d955
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 218e351702e7a206685ab94419a6c7b2277afcc3e0251a52dc96f51fa4870290
[INFO] running `Command { std: "docker" "start" "-a" "218e351702e7a206685ab94419a6c7b2277afcc3e0251a52dc96f51fa4870290", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]     Checking log v0.3.7
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]    Compiling zerofs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]     Checking toml v0.1.30
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]     Checking log4rs v0.3.3
[INFO] [stderr]     Checking toml v0.4.1
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/config.rs:95:24
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let mut file = try!(fs::File::open(&path));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/config.rs:95:24
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let mut file = try!(fs::File::open(&path));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/config.rs:105:50
[INFO] [stdout]     |
[INFO] [stdout] 105 |         toml::from_str(toml).map_err(|e| Error(e.description().to_string()))
[INFO] [stdout]     |                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/config.rs:105:50
[INFO] [stdout]     |
[INFO] [stdout] 105 |         toml::from_str(toml).map_err(|e| Error(e.description().to_string()))
[INFO] [stdout]     |                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/zmq/mod.rs:98:13
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let mut buffer: &mut [u8] = data.as_mut();
[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: constant `CONFIG_FILE` is never used
[INFO] [stdout]   --> src/lib.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const CONFIG_FILE: &'static str = "Modules/zerofs.conf";
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_settings` is never used
[INFO] [stdout]   --> src/lib.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn load_settings() -> config::Settings {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_logging` is never used
[INFO] [stdout]   --> src/lib.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn init_logging(settings: config::LoggingSettings) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ShutdownHandle` is never constructed
[INFO] [stdout]   --> src/domain/mod.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct ShutdownHandle {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `shutdown` is never used
[INFO] [stdout]   --> src/domain/mod.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn shutdown(self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/config.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub type Result<T> = result::Result<T, Error>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_toml_file` is never used
[INFO] [stdout]   --> src/config.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn from_toml_file<P: AsRef<Path>>(path: P) -> io::Result<Settings> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_toml` is never used
[INFO] [stdout]    --> src/config.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub fn from_toml(toml: &str) -> Result<Settings> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BadOp` is never constructed
[INFO] [stdout]   --> src/zmq/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum Error {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 19 |     BadMsg { bytes: Vec<u8> },
[INFO] [stdout] 20 |     BadOp(c_int),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/zmq/mod.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub type Result<T> = result::Result<T, Error>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `PUB` and `SUB` are never constructed
[INFO] [stdout]   --> src/zmq/mod.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub enum SocketType {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 67 |     PUB = 1,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 68 |     SUB = 2,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SocketType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/zmq/mod.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new() -> Result<Context> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `socket` is never used
[INFO] [stdout]   --> src/zmq/mod.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn socket(&self, socket_type: SocketType) -> Result<Socket> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `bind` is never used
[INFO] [stdout]   --> src/zmq/mod.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn bind<T: AsRef<str>>(&mut self, endpoint: T) -> Result<()> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `connect` is never used
[INFO] [stdout]   --> src/zmq/mod.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn connect<T: AsRef<str>>(&mut self, endpoint: T) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `send` is never used
[INFO] [stdout]   --> src/zmq/mod.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn send<T: AsRef<[u8]>>(&mut self, data: T) -> Result<usize> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `send_part` is never used
[INFO] [stdout]   --> src/zmq/mod.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn send_part<T: AsRef<[u8]>>(&mut self, data: T) -> Result<usize> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `recv` is never used
[INFO] [stdout]   --> src/zmq/mod.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn recv<T: AsMut<[u8]>>(&mut self, mut data: T) -> Result<usize> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `recv_string` is never used
[INFO] [stdout]    --> src/zmq/mod.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn recv_string(&mut self) -> Result<Option<String>> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `subscribe` is never used
[INFO] [stdout]    --> src/zmq/mod.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn subscribe<T: AsRef<str>>(&mut self, topic: T) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `subscribe_all` is never used
[INFO] [stdout]    --> src/zmq/mod.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn subscribe_all(&mut self) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `send_with_opts` is never used
[INFO] [stdout]    --> src/zmq/mod.rs:141:8
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn send_with_opts<T: AsRef<[u8]>>(&mut self, data: T, send_more: bool) -> Result<usize> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ZMQ_DONTWAIT` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub const ZMQ_DONTWAIT: c_int = 1;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ZMQ_SNDMORE` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const ZMQ_SNDMORE: c_int = 2;
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ZMQ_SUBSCRIBE` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const ZMQ_SUBSCRIBE: c_int = 6;
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ERRNO_EAGAIN` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub const ERRNO_EAGAIN: c_int = 11;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zmq_bind` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn zmq_bind(socket: *mut c_void, endpoint: *const c_char) -> c_int;
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zmq_connect` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn zmq_connect(socket: *mut c_void, endpoint: *const c_char) -> c_int;
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zmq_ctx_new` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn zmq_ctx_new() -> *mut c_void;
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zmq_errno` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn zmq_errno() -> c_int;
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zmq_recv` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn zmq_recv(socket: *mut c_void, buffer: *mut c_void, len: size_t, flags: c_int) -> c_int;
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zmq_send` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn zmq_send(socket: *mut c_void, buffer: *const c_void, len: size_t, flags: c_int) -> c_int;
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zmq_setsockopt` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn zmq_setsockopt(
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zmq_socket` is never used
[INFO] [stdout]   --> src/zmq/ffi.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn zmq_socket(context: *mut c_void, socket_type: c_int) -> *mut c_void;
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Module` is never constructed
[INFO] [stdout]   --> src/zerofs.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Module {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `MODULE` is never used
[INFO] [stdout]   --> src/zerofs.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | static mut MODULE: *mut Module = 0 as *mut Module;
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `start_module` is never used
[INFO] [stdout]   --> src/zerofs.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn start_module() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stop_module` is never used
[INFO] [stdout]   --> src/zerofs.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn stop_module() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/zerofs.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new() -> Module {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `start` is never used
[INFO] [stdout]   --> src/zerofs.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn start(&mut self) {}
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `stop` is never used
[INFO] [stdout]   --> src/zerofs.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn stop(&mut self) {}
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 44 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/zmq/mod.rs:98:13
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let mut buffer: &mut [u8] = data.as_mut();
[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: constant `CONFIG_FILE` is never used
[INFO] [stdout]   --> src/lib.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const CONFIG_FILE: &'static str = "Modules/zerofs.conf";
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_settings` is never used
[INFO] [stdout]   --> src/lib.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn load_settings() -> config::Settings {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_logging` is never used
[INFO] [stdout]   --> src/lib.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn init_logging(settings: config::LoggingSettings) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_toml_file` is never used
[INFO] [stdout]   --> src/config.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn from_toml_file<P: AsRef<Path>>(path: P) -> io::Result<Settings> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Module` is never constructed
[INFO] [stdout]   --> src/zerofs.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Module {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `MODULE` is never used
[INFO] [stdout]   --> src/zerofs.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | static mut MODULE: *mut Module = 0 as *mut Module;
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `start_module` is never used
[INFO] [stdout]   --> src/zerofs.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn start_module() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stop_module` is never used
[INFO] [stdout]   --> src/zerofs.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn stop_module() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/zerofs.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new() -> Module {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `start` is never used
[INFO] [stdout]   --> src/zerofs.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn start(&mut self) {}
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `stop` is never used
[INFO] [stdout]   --> src/zerofs.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn stop(&mut self) {}
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.82s
[INFO] running `Command { std: "docker" "inspect" "218e351702e7a206685ab94419a6c7b2277afcc3e0251a52dc96f51fa4870290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "218e351702e7a206685ab94419a6c7b2277afcc3e0251a52dc96f51fa4870290", kill_on_drop: false }`
[INFO] [stdout] 218e351702e7a206685ab94419a6c7b2277afcc3e0251a52dc96f51fa4870290