[INFO] crate sensorlog 0.1.0 is already in cache
[INFO] extracting crate sensorlog 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/sensorlog/0.1.0
[INFO] extracting crate sensorlog 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/sensorlog/0.1.0
[INFO] validating manifest of sensorlog-0.1.0 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sensorlog-0.1.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sensorlog-0.1.0
[INFO] finished frobbing sensorlog-0.1.0
[INFO] frobbed toml for sensorlog-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/sensorlog/0.1.0/Cargo.toml
[INFO] started frobbing sensorlog-0.1.0
[INFO] finished frobbing sensorlog-0.1.0
[INFO] frobbed toml for sensorlog-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/sensorlog/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting sensorlog-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/sensorlog/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 17e465782a5044b62a4094c9797a29a906c5136433c85c7230557bbe0cadddc9
[INFO] running `"docker" "start" "-a" "17e465782a5044b62a4094c9797a29a906c5136433c85c7230557bbe0cadddc9"`
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking hyper v0.9.18
[INFO] [stderr]     Checking iron v0.4.0
[INFO] [stderr]     Checking sensorlog v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/error.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 |             code: code
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `code`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/error.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 |             code: code
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `code`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/error.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |           return Error {
[INFO] [stderr]    |  _________^
[INFO] [stderr] 46 | |             message: message.to_owned(),
[INFO] [stderr] 47 | |             code: code
[INFO] [stderr] 48 | |         };
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 45 |         Error {
[INFO] [stderr] 46 |             message: message.to_owned(),
[INFO] [stderr] 47 |             code: code
[INFO] [stderr] 48 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]   --> src/http.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use std::fs::File;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]   --> src/http.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use std::fs;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `PathBuf`, `Path`
[INFO] [stderr]   --> src/http.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 | use std::path::{Path,PathBuf};
[INFO] [stderr]    |                 ^^^^ ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]   --> src/http.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 | use std::sync::{Arc,Mutex};
[INFO] [stderr]    |                 ^^^ ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/http.rs:45:2
[INFO] [stderr]    |
[INFO] [stderr] 45 |     return true;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/http.rs:69:3
[INFO] [stderr]    |
[INFO] [stderr] 69 |         return Ok(Response::with(iron::status::NotFound))
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Response::with(iron::status::NotFound))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/http.rs:117:3
[INFO] [stderr]     |
[INFO] [stderr] 117 |         return Ok(res);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(res)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]   --> src/api.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 | use serde::{Serialize, Deserialize};
[INFO] [stderr]    |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/api.rs:38:2
[INFO] [stderr]    |
[INFO] [stderr] 38 |       return Ok(StoreMeasurementResponse{
[INFO] [stderr]    |  _____^
[INFO] [stderr] 39 | |         success: true
[INFO] [stderr] 40 | |     });
[INFO] [stderr]    | |_______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Ok(StoreMeasurementResponse{
[INFO] [stderr] 39 |         success: true
[INFO] [stderr] 40 |     })
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Deserialize`
[INFO] [stderr]   --> src/api_json.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 | use serde::{Serialize, Deserialize};
[INFO] [stderr]    |                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/api_json.rs:37:2
[INFO] [stderr]    |
[INFO] [stderr] 37 |     return Ok(res_json);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(res_json)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/api_json.rs:43:2
[INFO] [stderr]    |
[INFO] [stderr] 43 |       return match method {
[INFO] [stderr]    |  _____^
[INFO] [stderr] 44 | |         "store_measurement" => call(&::api::store_measurement, req),
[INFO] [stderr] 45 | |         _ => Err(err_user!("invalid API method"))
[INFO] [stderr] 46 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 43 |     match method {
[INFO] [stderr] 44 |         "store_measurement" => call(&::api::store_measurement, req),
[INFO] [stderr] 45 |         _ => Err(err_user!("invalid API method"))
[INFO] [stderr] 46 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/api_json.rs:57:2
[INFO] [stderr]    |
[INFO] [stderr] 57 |       return match method(req) {
[INFO] [stderr]    |  _____^
[INFO] [stderr] 58 | |         Ok(r) => Ok(json::to_value(r).unwrap()),
[INFO] [stderr] 59 | |         Err(e) => Err(e)
[INFO] [stderr] 60 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 57 |     match method(req) {
[INFO] [stderr] 58 |         Ok(r) => Ok(json::to_value(r).unwrap()),
[INFO] [stderr] 59 |         Err(e) => Err(e)
[INFO] [stderr] 60 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]   --> src/server.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | use std::io;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 | const VERSION : &'static str = env!("CARGO_PKG_VERSION");
[INFO] [stderr]    |                 -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 | const LOGLEVEL_DEFAULT : &'static str = "info";
[INFO] [stderr]    |                          -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:42:16
[INFO] [stderr]    |
[INFO] [stderr] 42 | const USAGE : &'static str = "\
[INFO] [stderr]    |               -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `datadir`
[INFO] [stderr]    --> src/server.rs:101:6
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let datadir = match flags.opt_str("datadir") {
[INFO] [stderr]     |         ^^^^^^^ help: consider using `_datadir` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/error.rs:63:10
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn from(e: ()) -> Error {
[INFO] [stderr]    |             ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotFound`
[INFO] [stderr]   --> src/error.rs:24:43
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub enum ErrorCode { InternalServerError, NotFound, BadRequest }
[INFO] [stderr]    |                                           ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/server.rs:84:3
[INFO] [stderr]    |
[INFO] [stderr] 84 |         std::io::stdout().write(USAGE.as_bytes()).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/server.rs:93:32
[INFO] [stderr]    |
[INFO] [stderr] 93 |                     flags.opt_str("loglevel").unwrap_or(LOGLEVEL_DEFAULT.into()),
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| LOGLEVEL_DEFAULT.into())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/server.rs:94:32
[INFO] [stderr]    |
[INFO] [stderr] 94 |                     std::env::var("RUST_LOG").unwrap_or("".into())));
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| "".into())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `sensorlog`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/error.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |           return Error {
[INFO] [stderr]    |  _________^
[INFO] [stderr] 46 | |             message: message.to_owned(),
[INFO] [stderr] 47 | |             code: code
[INFO] [stderr] 48 | |         };
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 45 |         Error {
[INFO] [stderr] 46 |             message: message.to_owned(),
[INFO] [stderr] 47 |             code: code
[INFO] [stderr] 48 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]   --> src/http.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use std::fs::File;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]   --> src/http.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use std::fs;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `PathBuf`, `Path`
[INFO] [stderr]   --> src/http.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 | use std::path::{Path,PathBuf};
[INFO] [stderr]    |                 ^^^^ ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]   --> src/http.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 | use std::sync::{Arc,Mutex};
[INFO] [stderr]    |                 ^^^ ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/http.rs:45:2
[INFO] [stderr]    |
[INFO] [stderr] 45 |     return true;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/http.rs:69:3
[INFO] [stderr]    |
[INFO] [stderr] 69 |         return Ok(Response::with(iron::status::NotFound))
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Response::with(iron::status::NotFound))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/http.rs:117:3
[INFO] [stderr]     |
[INFO] [stderr] 117 |         return Ok(res);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(res)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]   --> src/api.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 | use serde::{Serialize, Deserialize};
[INFO] [stderr]    |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/api.rs:38:2
[INFO] [stderr]    |
[INFO] [stderr] 38 |       return Ok(StoreMeasurementResponse{
[INFO] [stderr]    |  _____^
[INFO] [stderr] 39 | |         success: true
[INFO] [stderr] 40 | |     });
[INFO] [stderr]    | |_______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Ok(StoreMeasurementResponse{
[INFO] [stderr] 39 |         success: true
[INFO] [stderr] 40 |     })
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Deserialize`
[INFO] [stderr]   --> src/api_json.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 | use serde::{Serialize, Deserialize};
[INFO] [stderr]    |                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/api_json.rs:37:2
[INFO] [stderr]    |
[INFO] [stderr] 37 |     return Ok(res_json);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(res_json)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/api_json.rs:43:2
[INFO] [stderr]    |
[INFO] [stderr] 43 |       return match method {
[INFO] [stderr]    |  _____^
[INFO] [stderr] 44 | |         "store_measurement" => call(&::api::store_measurement, req),
[INFO] [stderr] 45 | |         _ => Err(err_user!("invalid API method"))
[INFO] [stderr] 46 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 43 |     match method {
[INFO] [stderr] 44 |         "store_measurement" => call(&::api::store_measurement, req),
[INFO] [stderr] 45 |         _ => Err(err_user!("invalid API method"))
[INFO] [stderr] 46 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/api_json.rs:57:2
[INFO] [stderr]    |
[INFO] [stderr] 57 |       return match method(req) {
[INFO] [stderr]    |  _____^
[INFO] [stderr] 58 | |         Ok(r) => Ok(json::to_value(r).unwrap()),
[INFO] [stderr] 59 | |         Err(e) => Err(e)
[INFO] [stderr] 60 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 57 |     match method(req) {
[INFO] [stderr] 58 |         Ok(r) => Ok(json::to_value(r).unwrap()),
[INFO] [stderr] 59 |         Err(e) => Err(e)
[INFO] [stderr] 60 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]   --> src/server.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | use std::io;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 | const VERSION : &'static str = env!("CARGO_PKG_VERSION");
[INFO] [stderr]    |                 -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 | const LOGLEVEL_DEFAULT : &'static str = "info";
[INFO] [stderr]    |                          -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:42:16
[INFO] [stderr]    |
[INFO] [stderr] 42 | const USAGE : &'static str = "\
[INFO] [stderr]    |               -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `datadir`
[INFO] [stderr]    --> src/server.rs:101:6
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let datadir = match flags.opt_str("datadir") {
[INFO] [stderr]     |         ^^^^^^^ help: consider using `_datadir` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/error.rs:63:10
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn from(e: ()) -> Error {
[INFO] [stderr]    |             ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotFound`
[INFO] [stderr]   --> src/error.rs:24:43
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub enum ErrorCode { InternalServerError, NotFound, BadRequest }
[INFO] [stderr]    |                                           ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/server.rs:84:3
[INFO] [stderr]    |
[INFO] [stderr] 84 |         std::io::stdout().write(USAGE.as_bytes()).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/server.rs:93:32
[INFO] [stderr]    |
[INFO] [stderr] 93 |                     flags.opt_str("loglevel").unwrap_or(LOGLEVEL_DEFAULT.into()),
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| LOGLEVEL_DEFAULT.into())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/server.rs:94:32
[INFO] [stderr]    |
[INFO] [stderr] 94 |                     std::env::var("RUST_LOG").unwrap_or("".into())));
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| "".into())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `sensorlog`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "17e465782a5044b62a4094c9797a29a906c5136433c85c7230557bbe0cadddc9"`
[INFO] running `"docker" "rm" "-f" "17e465782a5044b62a4094c9797a29a906c5136433c85c7230557bbe0cadddc9"`
[INFO] [stdout] 17e465782a5044b62a4094c9797a29a906c5136433c85c7230557bbe0cadddc9