Dec 11 14:04:42.937 INFO checking masami256/virtrun against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 14:04:42.937 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 14:04:43.516 INFO [stdout] 15b4b0ad0fa3fa8ba804b82a795affc693ee47a7d75d22e34b842d12f4e7d366
Dec 11 14:04:43.518 INFO running `"docker" "start" "-a" "15b4b0ad0fa3fa8ba804b82a795affc693ee47a7d75d22e34b842d12f4e7d366"`
Dec 11 14:04:45.512 INFO [stderr] usermod: no changes
Dec 11 14:04:45.696 INFO [stderr]     Checking serial-core v0.4.0
Dec 11 14:04:45.696 INFO [stderr]     Checking termios v0.2.2
Dec 11 14:04:45.696 INFO [stderr]     Checking ioctl-rs v0.1.6
Dec 11 14:04:45.701 INFO [stderr]     Checking nix v0.10.0
Dec 11 14:04:45.701 INFO [stderr]     Checking ssh2 v0.3.3
Dec 11 14:04:47.425 INFO [stderr]     Checking serial-unix v0.4.0
Dec 11 14:04:48.502 INFO [stderr]     Checking serial v0.4.0
Dec 11 14:04:53.710 INFO [stderr]     Checking os_pipe v0.6.1
Dec 11 14:04:54.317 INFO [stderr]     Checking virtrun v0.1.0 (/source)
Dec 11 14:04:55.435 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 11 14:04:55.435 INFO [stderr]   --> src/main.rs:12:5
Dec 11 14:04:55.435 INFO [stderr]    |
Dec 11 14:04:55.435 INFO [stderr] 12 | use std::io::prelude::*;
Dec 11 14:04:55.435 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 14:04:55.435 INFO [stderr]    |
Dec 11 14:04:55.436 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 14:04:55.436 INFO [stderr] 
Dec 11 14:04:55.452 INFO [stderr] warning: unused variable: `i`
Dec 11 14:04:55.452 INFO [stderr]    --> src/main.rs:108:49
Dec 11 14:04:55.452 INFO [stderr]     |
Dec 11 14:04:55.452 INFO [stderr] 108 |                         yaml::Yaml::Integer(ref i) => {
Dec 11 14:04:55.452 INFO [stderr]     |                                                 ^ help: consider using `_i` instead
Dec 11 14:04:55.452 INFO [stderr]     |
Dec 11 14:04:55.452 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 14:04:55.452 INFO [stderr] 
Dec 11 14:04:55.453 INFO [stderr] warning: unused variable: `tmpfiles`
Dec 11 14:04:55.453 INFO [stderr]    --> src/main.rs:133:20
Dec 11 14:04:55.453 INFO [stderr]     |
Dec 11 14:04:55.453 INFO [stderr] 133 |     let (commands, tmpfiles) = create_cmdline_parameters(&data);
Dec 11 14:04:55.453 INFO [stderr]     |                    ^^^^^^^^ help: consider using `_tmpfiles` instead
Dec 11 14:04:55.453 INFO [stderr] 
Dec 11 14:04:55.499 INFO [stderr] warning: variable does not need to be mutable
Dec 11 14:04:55.499 INFO [stderr]    --> src/main.rs:179:9
Dec 11 14:04:55.499 INFO [stderr]     |
Dec 11 14:04:55.499 INFO [stderr] 179 |     let mut qemu_args = create_qemu_args(data);
Dec 11 14:04:55.500 INFO [stderr]     |         ----^^^^^^^^^
Dec 11 14:04:55.500 INFO [stderr]     |         |
Dec 11 14:04:55.500 INFO [stderr]     |         help: remove this `mut`
Dec 11 14:04:55.500 INFO [stderr]     |
Dec 11 14:04:55.501 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 14:04:55.501 INFO [stderr] 
Dec 11 14:04:55.557 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 11 14:04:55.557 INFO [stderr]   --> src/main.rs:12:5
Dec 11 14:04:55.557 INFO [stderr]    |
Dec 11 14:04:55.557 INFO [stderr] 12 | use std::io::prelude::*;
Dec 11 14:04:55.558 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 14:04:55.558 INFO [stderr]    |
Dec 11 14:04:55.558 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 14:04:55.558 INFO [stderr] 
Dec 11 14:04:55.573 INFO [stderr] warning: unused variable: `i`
Dec 11 14:04:55.574 INFO [stderr]    --> src/main.rs:108:49
Dec 11 14:04:55.574 INFO [stderr]     |
Dec 11 14:04:55.574 INFO [stderr] 108 |                         yaml::Yaml::Integer(ref i) => {
Dec 11 14:04:55.575 INFO [stderr]     |                                                 ^ help: consider using `_i` instead
Dec 11 14:04:55.575 INFO [stderr]     |
Dec 11 14:04:55.575 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 14:04:55.575 INFO [stderr] 
Dec 11 14:04:55.576 INFO [stderr] warning: unused variable: `tmpfiles`
Dec 11 14:04:55.576 INFO [stderr]    --> src/main.rs:133:20
Dec 11 14:04:55.576 INFO [stderr]     |
Dec 11 14:04:55.576 INFO [stderr] 133 |     let (commands, tmpfiles) = create_cmdline_parameters(&data);
Dec 11 14:04:55.577 INFO [stderr]     |                    ^^^^^^^^ help: consider using `_tmpfiles` instead
Dec 11 14:04:55.577 INFO [stderr] 
Dec 11 14:04:55.642 INFO [stderr] warning: variable does not need to be mutable
Dec 11 14:04:55.642 INFO [stderr]    --> src/main.rs:179:9
Dec 11 14:04:55.642 INFO [stderr]     |
Dec 11 14:04:55.642 INFO [stderr] 179 |     let mut qemu_args = create_qemu_args(data);
Dec 11 14:04:55.643 INFO [stderr]     |         ----^^^^^^^^^
Dec 11 14:04:55.643 INFO [stderr]     |         |
Dec 11 14:04:55.643 INFO [stderr]     |         help: remove this `mut`
Dec 11 14:04:55.644 INFO [stderr]     |
Dec 11 14:04:55.644 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 14:04:55.644 INFO [stderr] 
Dec 11 14:04:55.708 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.17s
Dec 11 14:04:55.714 INFO [stderr] su: No module specific data is present
Dec 11 14:04:57.495 INFO running `"docker" "inspect" "15b4b0ad0fa3fa8ba804b82a795affc693ee47a7d75d22e34b842d12f4e7d366"`
Dec 11 14:04:57.872 INFO running `"docker" "rm" "-f" "15b4b0ad0fa3fa8ba804b82a795affc693ee47a7d75d22e34b842d12f4e7d366"`
Dec 11 14:04:58.228 INFO [stdout] 15b4b0ad0fa3fa8ba804b82a795affc693ee47a7d75d22e34b842d12f4e7d366