Dec 17 20:04:21.089 INFO checking masami256/virtrun against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 20:04:21.089 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/masami256/virtrun:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 20:04:21.644 INFO [stdout] b35e46afd23189ee334589052b07190fc3b81f30aa71f55c6c1a05b079b0a495
Dec 17 20:04:21.646 INFO running `"docker" "start" "-a" "b35e46afd23189ee334589052b07190fc3b81f30aa71f55c6c1a05b079b0a495"`
Dec 17 20:04:24.259 INFO [stderr]    Compiling nix v0.10.0
Dec 17 20:04:24.259 INFO [stderr]    Compiling cmake v0.1.31
Dec 17 20:04:24.259 INFO [stderr]    Compiling libz-sys v1.0.18
Dec 17 20:04:24.273 INFO [stderr]     Checking termios v0.2.2
Dec 17 20:04:24.279 INFO [stderr]     Checking ioctl-rs v0.1.6
Dec 17 20:04:24.293 INFO [stderr]     Checking serial-core v0.4.0
Dec 17 20:04:26.011 INFO [stderr]     Checking serial-unix v0.4.0
Dec 17 20:04:27.272 INFO [stderr]     Checking serial v0.4.0
Dec 17 20:04:28.064 INFO [stderr]    Compiling libssh2-sys v0.2.7
Dec 17 20:04:42.411 INFO [stderr]     Checking os_pipe v0.6.1
Dec 17 20:04:43.448 INFO [stderr]     Checking ssh2 v0.3.3
Dec 17 20:04:44.364 INFO [stderr]     Checking virtrun v0.1.0 (/opt/crater/workdir)
Dec 17 20:04:44.825 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 17 20:04:44.825 INFO [stderr]   --> src/main.rs:12:5
Dec 17 20:04:44.825 INFO [stderr]    |
Dec 17 20:04:44.825 INFO [stderr] 12 | use std::io::prelude::*;
Dec 17 20:04:44.825 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 17 20:04:44.825 INFO [stderr]    |
Dec 17 20:04:44.825 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 20:04:44.825 INFO [stderr] 
Dec 17 20:04:44.838 INFO [stderr] warning: unused variable: `i`
Dec 17 20:04:44.838 INFO [stderr]    --> src/main.rs:108:49
Dec 17 20:04:44.838 INFO [stderr]     |
Dec 17 20:04:44.838 INFO [stderr] 108 |                         yaml::Yaml::Integer(ref i) => {
Dec 17 20:04:44.838 INFO [stderr]     |                                                 ^ help: consider using `_i` instead
Dec 17 20:04:44.838 INFO [stderr]     |
Dec 17 20:04:44.838 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 20:04:44.838 INFO [stderr] 
Dec 17 20:04:44.838 INFO [stderr] warning: unused variable: `tmpfiles`
Dec 17 20:04:44.838 INFO [stderr]    --> src/main.rs:133:20
Dec 17 20:04:44.838 INFO [stderr]     |
Dec 17 20:04:44.838 INFO [stderr] 133 |     let (commands, tmpfiles) = create_cmdline_parameters(&data);
Dec 17 20:04:44.838 INFO [stderr]     |                    ^^^^^^^^ help: consider using `_tmpfiles` instead
Dec 17 20:04:44.838 INFO [stderr] 
Dec 17 20:04:44.868 INFO [stderr] warning: variable does not need to be mutable
Dec 17 20:04:44.868 INFO [stderr]    --> src/main.rs:179:9
Dec 17 20:04:44.868 INFO [stderr]     |
Dec 17 20:04:44.868 INFO [stderr] 179 |     let mut qemu_args = create_qemu_args(data);
Dec 17 20:04:44.868 INFO [stderr]     |         ----^^^^^^^^^
Dec 17 20:04:44.868 INFO [stderr]     |         |
Dec 17 20:04:44.868 INFO [stderr]     |         help: remove this `mut`
Dec 17 20:04:44.868 INFO [stderr]     |
Dec 17 20:04:44.868 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 20:04:44.868 INFO [stderr] 
Dec 17 20:04:44.980 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 17 20:04:44.980 INFO [stderr]   --> src/main.rs:12:5
Dec 17 20:04:44.980 INFO [stderr]    |
Dec 17 20:04:44.980 INFO [stderr] 12 | use std::io::prelude::*;
Dec 17 20:04:44.981 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 17 20:04:44.981 INFO [stderr]    |
Dec 17 20:04:44.981 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 20:04:44.981 INFO [stderr] 
Dec 17 20:04:44.982 INFO [stderr] warning: unused variable: `i`
Dec 17 20:04:44.982 INFO [stderr]    --> src/main.rs:108:49
Dec 17 20:04:44.982 INFO [stderr]     |
Dec 17 20:04:44.982 INFO [stderr] 108 |                         yaml::Yaml::Integer(ref i) => {
Dec 17 20:04:44.983 INFO [stderr]     |                                                 ^ help: consider using `_i` instead
Dec 17 20:04:44.983 INFO [stderr]     |
Dec 17 20:04:44.983 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 20:04:44.983 INFO [stderr] 
Dec 17 20:04:44.984 INFO [stderr] warning: unused variable: `tmpfiles`
Dec 17 20:04:44.984 INFO [stderr]    --> src/main.rs:133:20
Dec 17 20:04:44.984 INFO [stderr]     |
Dec 17 20:04:44.985 INFO [stderr] 133 |     let (commands, tmpfiles) = create_cmdline_parameters(&data);
Dec 17 20:04:44.985 INFO [stderr]     |                    ^^^^^^^^ help: consider using `_tmpfiles` instead
Dec 17 20:04:44.985 INFO [stderr] 
Dec 17 20:04:45.009 INFO [stderr] warning: variable does not need to be mutable
Dec 17 20:04:45.009 INFO [stderr]    --> src/main.rs:179:9
Dec 17 20:04:45.009 INFO [stderr]     |
Dec 17 20:04:45.010 INFO [stderr] 179 |     let mut qemu_args = create_qemu_args(data);
Dec 17 20:04:45.010 INFO [stderr]     |         ----^^^^^^^^^
Dec 17 20:04:45.010 INFO [stderr]     |         |
Dec 17 20:04:45.011 INFO [stderr]     |         help: remove this `mut`
Dec 17 20:04:45.011 INFO [stderr]     |
Dec 17 20:04:45.011 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 20:04:45.011 INFO [stderr] 
Dec 17 20:04:45.077 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.97s
Dec 17 20:04:45.802 INFO running `"docker" "inspect" "b35e46afd23189ee334589052b07190fc3b81f30aa71f55c6c1a05b079b0a495"`
Dec 17 20:04:46.060 INFO running `"docker" "rm" "-f" "b35e46afd23189ee334589052b07190fc3b81f30aa71f55c6c1a05b079b0a495"`
Dec 17 20:04:46.336 INFO [stdout] b35e46afd23189ee334589052b07190fc3b81f30aa71f55c6c1a05b079b0a495