[INFO] updating cached repository oberien/victory-slot-extender
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/oberien/victory-slot-extender
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/oberien/victory-slot-extender" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/oberien/victory-slot-extender"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/oberien/victory-slot-extender'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/oberien/victory-slot-extender" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/oberien/victory-slot-extender"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/oberien/victory-slot-extender'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 82150915708a504490b0e6279124d1a982bbb366
[INFO] sha for GitHub repo oberien/victory-slot-extender: 82150915708a504490b0e6279124d1a982bbb366
[INFO] validating manifest of oberien/victory-slot-extender on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of oberien/victory-slot-extender on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing oberien/victory-slot-extender
[INFO] finished frobbing oberien/victory-slot-extender
[INFO] frobbed toml for oberien/victory-slot-extender written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/oberien/victory-slot-extender/Cargo.toml
[INFO] started frobbing oberien/victory-slot-extender
[INFO] finished frobbing oberien/victory-slot-extender
[INFO] frobbed toml for oberien/victory-slot-extender written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/oberien/victory-slot-extender/Cargo.toml
[INFO] crate oberien/victory-slot-extender already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking oberien/victory-slot-extender against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-3/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/oberien/victory-slot-extender:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 04ef7aff3a73d56a23daf52e61986a47967b0ca1cffd38d55d7f39fdefcf1c6f
[INFO] running `"docker" "start" "-a" "04ef7aff3a73d56a23daf52e61986a47967b0ca1cffd38d55d7f39fdefcf1c6f"`
[INFO] [stderr]     Checking victory-slot-extender v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::net::TcpStream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/main.rs:14:20
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut path = std::env::home_dir().unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::net::TcpStream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/main.rs:14:20
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut path = std::env::home_dir().unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bck`
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let bck = buf.clone();
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_bck`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bck`
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let bck = buf.clone();
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_bck`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "04ef7aff3a73d56a23daf52e61986a47967b0ca1cffd38d55d7f39fdefcf1c6f"`
[INFO] running `"docker" "rm" "-f" "04ef7aff3a73d56a23daf52e61986a47967b0ca1cffd38d55d7f39fdefcf1c6f"`
[INFO] [stdout] 04ef7aff3a73d56a23daf52e61986a47967b0ca1cffd38d55d7f39fdefcf1c6f