[INFO] updating cached repository Stuv7CB/guessing-game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Stuv7CB/guessing-game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Stuv7CB/guessing-game" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Stuv7CB/guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Stuv7CB/guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Stuv7CB/guessing-game" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Stuv7CB/guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Stuv7CB/guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 79e7e7cc602f5ecb3224056c5dfd7f7225971db2
[INFO] sha for GitHub repo Stuv7CB/guessing-game: 79e7e7cc602f5ecb3224056c5dfd7f7225971db2
[INFO] validating manifest of Stuv7CB/guessing-game on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Stuv7CB/guessing-game on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Stuv7CB/guessing-game
[INFO] finished frobbing Stuv7CB/guessing-game
[INFO] frobbed toml for Stuv7CB/guessing-game written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Stuv7CB/guessing-game/Cargo.toml
[INFO] started frobbing Stuv7CB/guessing-game
[INFO] finished frobbing Stuv7CB/guessing-game
[INFO] frobbed toml for Stuv7CB/guessing-game written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Stuv7CB/guessing-game/Cargo.toml
[INFO] crate Stuv7CB/guessing-game already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Stuv7CB/guessing-game against master#6ea4036cd20a4b1ab1d56e555108c21735ff6946 for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-3/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Stuv7CB/guessing-game:/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" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 08e473cff28ffa1f427041f46df8495f1f7bd6a64132f3b3441b66720d5a9e87
[INFO] running `"docker" "start" "-a" "08e473cff28ffa1f427041f46df8495f1f7bd6a64132f3b3441b66720d5a9e87"`
[INFO] [stderr]     Checking backtrace-sys v0.1.16
[INFO] [stderr]    Compiling glium v0.20.0
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking conrod v0.58.0
[INFO] [stderr]     Checking guessing-game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/app.rs:46:27
[INFO] [stderr]    |
[INFO] [stderr] 46 |         use super::rand::{self, Rng};
[INFO] [stderr]    |                           ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/app.rs:92:27
[INFO] [stderr]    |
[INFO] [stderr] 92 |         use super::rand::{self, Rng};
[INFO] [stderr]    |                           ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `find_folder` is imported redundantly
[INFO] [stderr]    --> src/app.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     use super::find_folder;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:5:1
[INFO] [stderr]     |
[INFO] [stderr] 5   | extern crate find_folder;
[INFO] [stderr]     | ------------------------- the item `find_folder` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/app.rs:46:27
[INFO] [stderr]    |
[INFO] [stderr] 46 |         use super::rand::{self, Rng};
[INFO] [stderr]    |                           ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/app.rs:92:27
[INFO] [stderr]    |
[INFO] [stderr] 92 |         use super::rand::{self, Rng};
[INFO] [stderr]    |                           ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `find_folder` is imported redundantly
[INFO] [stderr]    --> src/app.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     use super::find_folder;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:5:1
[INFO] [stderr]     |
[INFO] [stderr] 5   | extern crate find_folder;
[INFO] [stderr]     | ------------------------- the item `find_folder` is already imported here
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.62s
[INFO] running `"docker" "inspect" "08e473cff28ffa1f427041f46df8495f1f7bd6a64132f3b3441b66720d5a9e87"`
[INFO] running `"docker" "rm" "-f" "08e473cff28ffa1f427041f46df8495f1f7bd6a64132f3b3441b66720d5a9e87"`
[INFO] [stdout] 08e473cff28ffa1f427041f46df8495f1f7bd6a64132f3b3441b66720d5a9e87