Nov 30 11:31:23.601 INFO checking DanHatesNumbers/rusty-rocket-client against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 11:31:23.601 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +a49316ddc99d9d595193557fc899f6c52e4d9af9-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 11:31:24.078 INFO [stdout] 63331b4b5b89a0954938aa37e5960ba140431ef6b02e42bbe2119c2265cefb64
Nov 30 11:31:24.080 INFO running `"docker" "start" "-a" "63331b4b5b89a0954938aa37e5960ba140431ef6b02e42bbe2119c2265cefb64"`
Nov 30 11:31:25.698 INFO [stderr] usermod: no changes
Nov 30 11:31:25.988 INFO [stderr]     Checking backtrace-sys v0.1.22
Nov 30 11:31:26.468 INFO [stderr]     Checking backtrace v0.3.8
Nov 30 11:31:27.192 INFO [stderr]     Checking failure v0.1.1
Nov 30 11:31:28.035 INFO [stderr]     Checking rusty-rocket-client v0.1.0 (/source)
Nov 30 11:31:33.895 INFO [stderr] warning: unused `#[macro_use]` import
Nov 30 11:31:33.895 INFO [stderr]  --> src/main.rs:1:1
Nov 30 11:31:33.895 INFO [stderr]   |
Nov 30 11:31:33.895 INFO [stderr] 1 | #[macro_use]
Nov 30 11:31:33.895 INFO [stderr]   | ^^^^^^^^^^^^
Nov 30 11:31:33.895 INFO [stderr]   |
Nov 30 11:31:33.895 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 11:31:33.895 INFO [stderr] 
Nov 30 11:31:33.895 INFO [stderr] warning: unused import: `self`
Nov 30 11:31:33.895 INFO [stderr]  --> src/main.rs:9:15
Nov 30 11:31:33.895 INFO [stderr]   |
Nov 30 11:31:33.895 INFO [stderr] 9 | use std::io::{self, Write};
Nov 30 11:31:33.895 INFO [stderr]   |               ^^^^
Nov 30 11:31:33.895 INFO [stderr] 
Nov 30 11:31:34.036 INFO [stderr] warning: unused import: `Write`
Nov 30 11:31:34.037 INFO [stderr]  --> src/main.rs:9:21
Nov 30 11:31:34.037 INFO [stderr]   |
Nov 30 11:31:34.037 INFO [stderr] 9 | use std::io::{self, Write};
Nov 30 11:31:34.037 INFO [stderr]   |                     ^^^^^
Nov 30 11:31:34.038 INFO [stderr] 
Nov 30 11:31:34.198 INFO [stderr] warning: unused `#[macro_use]` import
Nov 30 11:31:34.199 INFO [stderr]  --> src/main.rs:1:1
Nov 30 11:31:34.199 INFO [stderr]   |
Nov 30 11:31:34.199 INFO [stderr] 1 | #[macro_use]
Nov 30 11:31:34.199 INFO [stderr]   | ^^^^^^^^^^^^
Nov 30 11:31:34.200 INFO [stderr]   |
Nov 30 11:31:34.200 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 11:31:34.200 INFO [stderr] 
Nov 30 11:31:34.200 INFO [stderr] warning: unused import: `self`
Nov 30 11:31:34.200 INFO [stderr]  --> src/main.rs:9:15
Nov 30 11:31:34.201 INFO [stderr]   |
Nov 30 11:31:34.201 INFO [stderr] 9 | use std::io::{self, Write};
Nov 30 11:31:34.201 INFO [stderr]   |               ^^^^
Nov 30 11:31:34.201 INFO [stderr] 
Nov 30 11:31:34.293 INFO [stderr] warning: unused import: `Write`
Nov 30 11:31:34.293 INFO [stderr]  --> src/main.rs:9:21
Nov 30 11:31:34.293 INFO [stderr]   |
Nov 30 11:31:34.293 INFO [stderr] 9 | use std::io::{self, Write};
Nov 30 11:31:34.294 INFO [stderr]   |                     ^^^^^
Nov 30 11:31:34.294 INFO [stderr] 
Nov 30 11:31:34.380 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.63s
Nov 30 11:31:34.389 INFO [stderr] su: No module specific data is present
Nov 30 11:31:35.498 INFO running `"docker" "inspect" "63331b4b5b89a0954938aa37e5960ba140431ef6b02e42bbe2119c2265cefb64"`
Nov 30 11:31:35.906 INFO running `"docker" "rm" "-f" "63331b4b5b89a0954938aa37e5960ba140431ef6b02e42bbe2119c2265cefb64"`
Nov 30 11:31:36.240 INFO [stdout] 63331b4b5b89a0954938aa37e5960ba140431ef6b02e42bbe2119c2265cefb64