Dec 12 14:48:39.149 INFO checking fstream-0.1.2 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 14:48:39.149 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 14:48:39.437 INFO [stdout] 783e95fd0a9d19b480fab77386f3d52b79e0dce9360b8b5f533bef7d52025f58
Dec 12 14:48:39.437 INFO running `"docker" "start" "-a" "783e95fd0a9d19b480fab77386f3d52b79e0dce9360b8b5f533bef7d52025f58"`
Dec 12 14:48:40.633 INFO [stderr] usermod: no changes
Dec 12 14:48:40.672 INFO [stderr]     Checking fstream v0.1.2 (/source)
Dec 12 14:48:41.272 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 14:48:41.272 INFO [stderr]   --> src/lib.rs:21:13
Dec 12 14:48:41.272 INFO [stderr]    |
Dec 12 14:48:41.272 INFO [stderr] 21 |             file.read_to_end(&mut data);
Dec 12 14:48:41.272 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:48:41.272 INFO [stderr]    |
Dec 12 14:48:41.272 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 14:48:41.272 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 14:48:41.272 INFO [stderr] 
Dec 12 14:48:41.272 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 14:48:41.272 INFO [stderr]   --> src/lib.rs:41:13
Dec 12 14:48:41.272 INFO [stderr]    |
Dec 12 14:48:41.272 INFO [stderr] 41 |             file.read_to_string(&mut content);
Dec 12 14:48:41.272 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:48:41.272 INFO [stderr]    |
Dec 12 14:48:41.272 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 14:48:41.272 INFO [stderr] 
Dec 12 14:48:41.272 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 14:48:41.272 INFO [stderr]   --> src/lib.rs:61:13
Dec 12 14:48:41.272 INFO [stderr]    |
Dec 12 14:48:41.272 INFO [stderr] 61 |             file.read_to_string(&mut content);
Dec 12 14:48:41.272 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:48:41.272 INFO [stderr]    |
Dec 12 14:48:41.272 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 14:48:41.272 INFO [stderr] 
Dec 12 14:48:41.272 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 14:48:41.272 INFO [stderr]   --> src/lib.rs:87:13
Dec 12 14:48:41.272 INFO [stderr]    |
Dec 12 14:48:41.272 INFO [stderr] 87 |             file.read_to_string(&mut content);
Dec 12 14:48:41.272 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:48:41.273 INFO [stderr]    |
Dec 12 14:48:41.273 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 14:48:41.273 INFO [stderr] 
Dec 12 14:48:41.416 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 14:48:41.416 INFO [stderr]   --> src/lib.rs:21:13
Dec 12 14:48:41.416 INFO [stderr]    |
Dec 12 14:48:41.416 INFO [stderr] 21 |             file.read_to_end(&mut data);
Dec 12 14:48:41.416 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:48:41.416 INFO [stderr]    |
Dec 12 14:48:41.416 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 14:48:41.416 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 14:48:41.416 INFO [stderr] 
Dec 12 14:48:41.416 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 14:48:41.416 INFO [stderr]   --> src/lib.rs:41:13
Dec 12 14:48:41.416 INFO [stderr]    |
Dec 12 14:48:41.416 INFO [stderr] 41 |             file.read_to_string(&mut content);
Dec 12 14:48:41.416 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:48:41.416 INFO [stderr]    |
Dec 12 14:48:41.416 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 14:48:41.416 INFO [stderr] 
Dec 12 14:48:41.416 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 14:48:41.416 INFO [stderr]   --> src/lib.rs:61:13
Dec 12 14:48:41.416 INFO [stderr]    |
Dec 12 14:48:41.416 INFO [stderr] 61 |             file.read_to_string(&mut content);
Dec 12 14:48:41.416 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:48:41.416 INFO [stderr]    |
Dec 12 14:48:41.416 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 14:48:41.416 INFO [stderr] 
Dec 12 14:48:41.416 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 14:48:41.416 INFO [stderr]   --> src/lib.rs:87:13
Dec 12 14:48:41.416 INFO [stderr]    |
Dec 12 14:48:41.416 INFO [stderr] 87 |             file.read_to_string(&mut content);
Dec 12 14:48:41.416 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:48:41.416 INFO [stderr]    |
Dec 12 14:48:41.416 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 14:48:41.416 INFO [stderr] 
Dec 12 14:48:41.452 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Dec 12 14:48:41.452 INFO [stderr] su: No module specific data is present
Dec 12 14:48:42.364 INFO running `"docker" "inspect" "783e95fd0a9d19b480fab77386f3d52b79e0dce9360b8b5f533bef7d52025f58"`
Dec 12 14:48:42.570 INFO running `"docker" "rm" "-f" "783e95fd0a9d19b480fab77386f3d52b79e0dce9360b8b5f533bef7d52025f58"`
Dec 12 14:48:42.904 INFO [stdout] 783e95fd0a9d19b480fab77386f3d52b79e0dce9360b8b5f533bef7d52025f58