[INFO] updating cached repository FRC6644/installer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/FRC6644/installer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/FRC6644/installer" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/FRC6644/installer"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/FRC6644/installer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/FRC6644/installer" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/FRC6644/installer"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/FRC6644/installer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7d0729275e25744fa679e04d39d8dd13b9b90f2c
[INFO] sha for GitHub repo FRC6644/installer: 7d0729275e25744fa679e04d39d8dd13b9b90f2c
[INFO] validating manifest of FRC6644/installer on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of FRC6644/installer on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing FRC6644/installer
[INFO] finished frobbing FRC6644/installer
[INFO] frobbed toml for FRC6644/installer written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/FRC6644/installer/Cargo.toml
[INFO] started frobbing FRC6644/installer
[INFO] finished frobbing FRC6644/installer
[INFO] frobbed toml for FRC6644/installer written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/FRC6644/installer/Cargo.toml
[INFO] crate FRC6644/installer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking FRC6644/installer against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-7/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/FRC6644/installer:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6a9e3326fb492d12d10ff79a1052a93ee0df951ceb7409486472893186d56b8c
[INFO] running `"docker" "start" "-a" "6a9e3326fb492d12d10ff79a1052a93ee0df951ceb7409486472893186d56b8c"`
[INFO] [stderr]     Checking futures v0.1.24
[INFO] [stderr]    Compiling openssl v0.10.12
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]     Checking encoding_rs v0.8.6
[INFO] [stderr]    Compiling openssl-sys v0.9.36
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking serde_json v1.0.30
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking serde_urlencoded v0.5.3
[INFO] [stderr]     Checking libflate v0.1.18
[INFO] [stderr]     Checking http v0.1.13
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]     Checking mime v0.3.9
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking tokio-executor v0.1.4
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking tokio-threadpool v0.1.6
[INFO] [stderr]     Checking tokio-current-thread v0.1.1
[INFO] [stderr]     Checking tokio-timer v0.2.6
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking h2 v0.1.12
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]     Checking hyper v0.12.10
[INFO] [stderr]     Checking hyper-tls v0.3.0
[INFO] [stderr]     Checking reqwest v0.9.2
[INFO] [stderr]     Checking installer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> src/main.rs:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::fs::{self, DirBuilder};
[INFO] [stderr]    |               ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `let` head expression
[INFO] [stderr]   --> src/main.rs:81:21
[INFO] [stderr]    |
[INFO] [stderr] 81 |    if let Some(o) = (softwares.get(software)){
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 |     if let Some(matches) = matches.subcommand_matches("hello_there") {
[INFO] [stderr]    |                 ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> src/main.rs:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::fs::{self, DirBuilder};
[INFO] [stderr]    |               ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `let` head expression
[INFO] [stderr]   --> src/main.rs:81:21
[INFO] [stderr]    |
[INFO] [stderr] 81 |    if let Some(o) = (softwares.get(software)){
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_file`
[INFO] [stderr]   --> src/main.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn create_file() -> std::io::Result<()>{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_page`
[INFO] [stderr]   --> src/main.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn get_page(url: &str) -> Result<String, reqwest::Error>{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Error`
[INFO] [stderr]   --> src/main.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | enum Error{
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:18:2
[INFO] [stderr]    |
[INFO] [stderr] 18 |     get_save("https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png");
[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 `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:48:2
[INFO] [stderr]    |
[INFO] [stderr] 48 |     resp.copy_to(&mut file);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:55:2
[INFO] [stderr]    |
[INFO] [stderr] 55 |       DirBuilder::new()
[INFO] [stderr]    |  _____^
[INFO] [stderr] 56 | |         .recursive(true)
[INFO] [stderr] 57 | |         .create(&path);
[INFO] [stderr]    | |_______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:59:2
[INFO] [stderr]    |
[INFO] [stderr] 59 |       DirBuilder::new()
[INFO] [stderr]    |  _____^
[INFO] [stderr] 60 | |         .recursive(true)
[INFO] [stderr] 61 | |         .create(&path);
[INFO] [stderr]    | |_______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 |     if let Some(matches) = matches.subcommand_matches("hello_there") {
[INFO] [stderr]    |                 ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_file`
[INFO] [stderr]   --> src/main.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn create_file() -> std::io::Result<()>{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_page`
[INFO] [stderr]   --> src/main.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn get_page(url: &str) -> Result<String, reqwest::Error>{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Error`
[INFO] [stderr]   --> src/main.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | enum Error{
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:18:2
[INFO] [stderr]    |
[INFO] [stderr] 18 |     get_save("https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png");
[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 `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:48:2
[INFO] [stderr]    |
[INFO] [stderr] 48 |     resp.copy_to(&mut file);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:55:2
[INFO] [stderr]    |
[INFO] [stderr] 55 |       DirBuilder::new()
[INFO] [stderr]    |  _____^
[INFO] [stderr] 56 | |         .recursive(true)
[INFO] [stderr] 57 | |         .create(&path);
[INFO] [stderr]    | |_______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:59:2
[INFO] [stderr]    |
[INFO] [stderr] 59 |       DirBuilder::new()
[INFO] [stderr]    |  _____^
[INFO] [stderr] 60 | |         .recursive(true)
[INFO] [stderr] 61 | |         .create(&path);
[INFO] [stderr]    | |_______________________^
[INFO] [stderr]    |
[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 46.72s
[INFO] running `"docker" "inspect" "6a9e3326fb492d12d10ff79a1052a93ee0df951ceb7409486472893186d56b8c"`
[INFO] running `"docker" "rm" "-f" "6a9e3326fb492d12d10ff79a1052a93ee0df951ceb7409486472893186d56b8c"`
[INFO] [stdout] 6a9e3326fb492d12d10ff79a1052a93ee0df951ceb7409486472893186d56b8c