[INFO] updating cached repository gavxin/rust-misc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gavxin/rust-misc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gavxin/rust-misc" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/gavxin/rust-misc"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/gavxin/rust-misc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gavxin/rust-misc" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/gavxin/rust-misc"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/gavxin/rust-misc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 033a89b9fc5d83f095dd151d391eb44de2f5eb8c
[INFO] sha for GitHub repo gavxin/rust-misc: 033a89b9fc5d83f095dd151d391eb44de2f5eb8c
[INFO] validating manifest of gavxin/rust-misc on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gavxin/rust-misc on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gavxin/rust-misc
[INFO] finished frobbing gavxin/rust-misc
[INFO] frobbed toml for gavxin/rust-misc written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/gavxin/rust-misc/Cargo.toml
[INFO] started frobbing gavxin/rust-misc
[INFO] finished frobbing gavxin/rust-misc
[INFO] frobbed toml for gavxin/rust-misc written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/gavxin/rust-misc/Cargo.toml
[INFO] crate gavxin/rust-misc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gavxin/rust-misc against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-7/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/gavxin/rust-misc:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 78718387ce9cddf392fe38593be95a286300dde5e4d5971dcca63c492ff477b5
[INFO] running `"docker" "start" "-a" "78718387ce9cddf392fe38593be95a286300dde5e4d5971dcca63c492ff477b5"`
[INFO] [stderr]     Checking rust-misc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Ipv6Addr`, `SocketAddrV4`, `SocketAddr`
[INFO] [stderr]  --> src/bin/simple_socks_proxy.rs:3:50
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::net::{TcpListener, TcpStream, Shutdown, SocketAddr, SocketAddrV4, Ipv4Addr, Ipv6Addr};
[INFO] [stderr]   |                                                  ^^^^^^^^^^  ^^^^^^^^^^^^            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/bin/simple_socks_proxy.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/bin/simple_socks_proxy.rs:134:24
[INFO] [stderr]     |
[INFO] [stderr] 134 |                     if (e.kind() == ErrorKind::WouldBlock) {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Ipv6Addr`, `SocketAddrV4`, `SocketAddr`
[INFO] [stderr]  --> src/bin/simple_socks_proxy.rs:3:50
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::net::{TcpListener, TcpStream, Shutdown, SocketAddr, SocketAddrV4, Ipv4Addr, Ipv6Addr};
[INFO] [stderr]   |                                                  ^^^^^^^^^^  ^^^^^^^^^^^^            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/bin/simple_socks_proxy.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/bin/simple_socks_proxy.rs:134:24
[INFO] [stderr]     |
[INFO] [stderr] 134 |                     if (e.kind() == ErrorKind::WouldBlock) {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/bin/simple_socks_proxy.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 |     Ok(())
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/simple_socks_proxy.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut s : String;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/simple_socks_proxy.rs:60:17
[INFO] [stderr]    |
[INFO] [stderr] 60 |             let mut port = ((tmp[4] as u16) << 8) + tmp[5] as u16;
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/simple_socks_proxy.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |             let mut port = ((port_buf[0] as u16) << 8) + port_buf[1] as u16;
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bin/simple_socks_proxy.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |             dbg!(ret);
[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]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/bin/simple_socks_proxy.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 |     Ok(())
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/simple_socks_proxy.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut s : String;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/simple_socks_proxy.rs:60:17
[INFO] [stderr]    |
[INFO] [stderr] 60 |             let mut port = ((tmp[4] as u16) << 8) + tmp[5] as u16;
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/simple_socks_proxy.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |             let mut port = ((port_buf[0] as u16) << 8) + port_buf[1] as u16;
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bin/simple_socks_proxy.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |             dbg!(ret);
[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]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "78718387ce9cddf392fe38593be95a286300dde5e4d5971dcca63c492ff477b5"`
[INFO] running `"docker" "rm" "-f" "78718387ce9cddf392fe38593be95a286300dde5e4d5971dcca63c492ff477b5"`
[INFO] [stdout] 78718387ce9cddf392fe38593be95a286300dde5e4d5971dcca63c492ff477b5