Dec 11 14:15:06.297 INFO checking maniflames/time-frame-json-generator against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 14:15:06.297 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 14:15:06.748 INFO [stdout] e4bc828cafe3f93745cb84a6add686150aebaf4f210592f71f261a37031807f2
Dec 11 14:15:06.756 INFO running `"docker" "start" "-a" "e4bc828cafe3f93745cb84a6add686150aebaf4f210592f71f261a37031807f2"`
Dec 11 14:15:07.748 INFO [stderr] usermod: no changes
Dec 11 14:15:07.872 INFO [stderr]     Checking timeframe v0.0.1 (/source)
Dec 11 14:15:08.320 INFO [stderr] warning: unused import: `self`
Dec 11 14:15:08.320 INFO [stderr]  --> src/main.rs:7:29
Dec 11 14:15:08.320 INFO [stderr]   |
Dec 11 14:15:08.320 INFO [stderr] 7 | use rustc_serialize::json::{self, Encoder};
Dec 11 14:15:08.320 INFO [stderr]   |                             ^^^^
Dec 11 14:15:08.320 INFO [stderr]   |
Dec 11 14:15:08.320 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 14:15:08.320 INFO [stderr] 
Dec 11 14:15:08.364 INFO [stderr] warning: unused import: `self`
Dec 11 14:15:08.364 INFO [stderr]  --> src/main.rs:7:29
Dec 11 14:15:08.364 INFO [stderr]   |
Dec 11 14:15:08.364 INFO [stderr] 7 | use rustc_serialize::json::{self, Encoder};
Dec 11 14:15:08.364 INFO [stderr]   |                             ^^^^
Dec 11 14:15:08.364 INFO [stderr]   |
Dec 11 14:15:08.364 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 14:15:08.364 INFO [stderr] 
Dec 11 14:15:08.733 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 14:15:08.733 INFO [stderr]   --> src/utils.rs:55:5
Dec 11 14:15:08.733 INFO [stderr]    |
Dec 11 14:15:08.733 INFO [stderr] 55 |     f.read_to_string(&mut json);
Dec 11 14:15:08.733 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 14:15:08.733 INFO [stderr]    |
Dec 11 14:15:08.733 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 14:15:08.733 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 14:15:08.733 INFO [stderr] 
Dec 11 14:15:08.844 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 14:15:08.844 INFO [stderr]   --> src/utils.rs:55:5
Dec 11 14:15:08.844 INFO [stderr]    |
Dec 11 14:15:08.844 INFO [stderr] 55 |     f.read_to_string(&mut json);
Dec 11 14:15:08.844 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 14:15:08.844 INFO [stderr]    |
Dec 11 14:15:08.844 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 14:15:08.844 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 14:15:08.844 INFO [stderr] 
Dec 11 14:15:08.856 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
Dec 11 14:15:08.856 INFO [stderr] su: No module specific data is present
Dec 11 14:15:09.654 INFO running `"docker" "inspect" "e4bc828cafe3f93745cb84a6add686150aebaf4f210592f71f261a37031807f2"`
Dec 11 14:15:10.038 INFO running `"docker" "rm" "-f" "e4bc828cafe3f93745cb84a6add686150aebaf4f210592f71f261a37031807f2"`
Dec 11 14:15:10.320 INFO [stdout] e4bc828cafe3f93745cb84a6add686150aebaf4f210592f71f261a37031807f2