Nov 30 22:45:49.681 INFO checking fstream-0.1.2 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 22:45:49.681 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-3/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 22:45:49.924 INFO [stdout] b8900ed7a1b1f65a68e3fc90b3f99d819c633b889f5e7e91cada1b309700dc32
Nov 30 22:45:49.930 INFO running `"docker" "start" "-a" "b8900ed7a1b1f65a68e3fc90b3f99d819c633b889f5e7e91cada1b309700dc32"`
Nov 30 22:45:50.863 INFO [stderr] usermod: no changes
Nov 30 22:45:50.920 INFO [stderr]     Checking fstream v0.1.2 (/source)
Nov 30 22:45:51.692 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:45:51.692 INFO [stderr]   --> src/lib.rs:21:13
Nov 30 22:45:51.692 INFO [stderr]    |
Nov 30 22:45:51.692 INFO [stderr] 21 |             file.read_to_end(&mut data);
Nov 30 22:45:51.692 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:45:51.693 INFO [stderr]    |
Nov 30 22:45:51.693 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 22:45:51.693 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:45:51.693 INFO [stderr] 
Nov 30 22:45:51.693 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:45:51.693 INFO [stderr]   --> src/lib.rs:41:13
Nov 30 22:45:51.693 INFO [stderr]    |
Nov 30 22:45:51.693 INFO [stderr] 41 |             file.read_to_string(&mut content);
Nov 30 22:45:51.693 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:45:51.693 INFO [stderr]    |
Nov 30 22:45:51.693 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:45:51.693 INFO [stderr] 
Nov 30 22:45:51.693 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:45:51.693 INFO [stderr]   --> src/lib.rs:61:13
Nov 30 22:45:51.693 INFO [stderr]    |
Nov 30 22:45:51.693 INFO [stderr] 61 |             file.read_to_string(&mut content);
Nov 30 22:45:51.693 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:45:51.693 INFO [stderr]    |
Nov 30 22:45:51.693 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:45:51.693 INFO [stderr] 
Nov 30 22:45:51.693 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:45:51.693 INFO [stderr]   --> src/lib.rs:87:13
Nov 30 22:45:51.693 INFO [stderr]    |
Nov 30 22:45:51.693 INFO [stderr] 87 |             file.read_to_string(&mut content);
Nov 30 22:45:51.693 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:45:51.693 INFO [stderr]    |
Nov 30 22:45:51.693 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:45:51.693 INFO [stderr] 
Nov 30 22:45:51.793 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:45:51.793 INFO [stderr]   --> src/lib.rs:21:13
Nov 30 22:45:51.794 INFO [stderr]    |
Nov 30 22:45:51.794 INFO [stderr] 21 |             file.read_to_end(&mut data);
Nov 30 22:45:51.794 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:45:51.794 INFO [stderr]    |
Nov 30 22:45:51.794 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 22:45:51.794 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:45:51.794 INFO [stderr] 
Nov 30 22:45:51.794 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:45:51.794 INFO [stderr]   --> src/lib.rs:41:13
Nov 30 22:45:51.794 INFO [stderr]    |
Nov 30 22:45:51.794 INFO [stderr] 41 |             file.read_to_string(&mut content);
Nov 30 22:45:51.794 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:45:51.794 INFO [stderr]    |
Nov 30 22:45:51.794 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:45:51.794 INFO [stderr] 
Nov 30 22:45:51.794 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:45:51.794 INFO [stderr]   --> src/lib.rs:61:13
Nov 30 22:45:51.794 INFO [stderr]    |
Nov 30 22:45:51.794 INFO [stderr] 61 |             file.read_to_string(&mut content);
Nov 30 22:45:51.794 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:45:51.794 INFO [stderr]    |
Nov 30 22:45:51.794 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:45:51.794 INFO [stderr] 
Nov 30 22:45:51.794 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:45:51.794 INFO [stderr]   --> src/lib.rs:87:13
Nov 30 22:45:51.794 INFO [stderr]    |
Nov 30 22:45:51.794 INFO [stderr] 87 |             file.read_to_string(&mut content);
Nov 30 22:45:51.794 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:45:51.794 INFO [stderr]    |
Nov 30 22:45:51.794 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:45:51.794 INFO [stderr] 
Nov 30 22:45:51.805 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
Nov 30 22:45:51.807 INFO [stderr] su: No module specific data is present
Nov 30 22:45:52.262 INFO running `"docker" "inspect" "b8900ed7a1b1f65a68e3fc90b3f99d819c633b889f5e7e91cada1b309700dc32"`
Nov 30 22:45:52.414 INFO running `"docker" "rm" "-f" "b8900ed7a1b1f65a68e3fc90b3f99d819c633b889f5e7e91cada1b309700dc32"`
Nov 30 22:45:52.693 INFO [stdout] b8900ed7a1b1f65a68e3fc90b3f99d819c633b889f5e7e91cada1b309700dc32