Dec 07 16:14:20.134 INFO testing fstream-0.1.2 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 07 16:14:20.134 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 07 16:14:20.373 INFO [stdout] 43a2490650e02546ef49a96b9b78a8c895251a7151207138952455bf4c851b5a
Dec 07 16:14:20.375 INFO running `"docker" "start" "-a" "43a2490650e02546ef49a96b9b78a8c895251a7151207138952455bf4c851b5a"`
Dec 07 16:14:21.078 INFO [stderr] usermod: no changes
Dec 07 16:14:21.160 INFO [stderr]    Compiling fstream v0.1.2 (/source)
Dec 07 16:14:21.653 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 16:14:21.653 INFO [stderr]   --> src/lib.rs:21:13
Dec 07 16:14:21.653 INFO [stderr]    |
Dec 07 16:14:21.653 INFO [stderr] 21 |             file.read_to_end(&mut data);
Dec 07 16:14:21.653 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 16:14:21.653 INFO [stderr]    |
Dec 07 16:14:21.653 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 07 16:14:21.653 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 16:14:21.653 INFO [stderr] 
Dec 07 16:14:21.653 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 16:14:21.653 INFO [stderr]   --> src/lib.rs:41:13
Dec 07 16:14:21.653 INFO [stderr]    |
Dec 07 16:14:21.653 INFO [stderr] 41 |             file.read_to_string(&mut content);
Dec 07 16:14:21.653 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 16:14:21.653 INFO [stderr]    |
Dec 07 16:14:21.653 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 16:14:21.653 INFO [stderr] 
Dec 07 16:14:21.653 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 16:14:21.653 INFO [stderr]   --> src/lib.rs:61:13
Dec 07 16:14:21.653 INFO [stderr]    |
Dec 07 16:14:21.653 INFO [stderr] 61 |             file.read_to_string(&mut content);
Dec 07 16:14:21.653 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 16:14:21.653 INFO [stderr]    |
Dec 07 16:14:21.653 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 16:14:21.653 INFO [stderr] 
Dec 07 16:14:21.653 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 16:14:21.653 INFO [stderr]   --> src/lib.rs:87:13
Dec 07 16:14:21.653 INFO [stderr]    |
Dec 07 16:14:21.653 INFO [stderr] 87 |             file.read_to_string(&mut content);
Dec 07 16:14:21.653 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 16:14:21.653 INFO [stderr]    |
Dec 07 16:14:21.653 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 16:14:21.653 INFO [stderr] 
Dec 07 16:14:21.670 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
Dec 07 16:14:21.672 INFO [stderr] su: No module specific data is present
Dec 07 16:14:22.004 INFO running `"docker" "inspect" "43a2490650e02546ef49a96b9b78a8c895251a7151207138952455bf4c851b5a"`
Dec 07 16:14:22.106 INFO running `"docker" "rm" "-f" "43a2490650e02546ef49a96b9b78a8c895251a7151207138952455bf4c851b5a"`
Dec 07 16:14:22.219 INFO [stdout] 43a2490650e02546ef49a96b9b78a8c895251a7151207138952455bf4c851b5a
Dec 07 16:14:22.226 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 07 16:14:22.494 INFO [stdout] a7a25efd3c08ce6997ab9946bb73e00d9ad550540bf250335581e8e3e7fd5ca7
Dec 07 16:14:22.502 INFO running `"docker" "start" "-a" "a7a25efd3c08ce6997ab9946bb73e00d9ad550540bf250335581e8e3e7fd5ca7"`
Dec 07 16:14:23.316 INFO [stderr] usermod: no changes
Dec 07 16:14:23.366 INFO [stderr]    Compiling fstream v0.1.2 (/source)
Dec 07 16:14:24.072 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 16:14:24.076 INFO [stderr]   --> src/lib.rs:21:13
Dec 07 16:14:24.076 INFO [stderr]    |
Dec 07 16:14:24.076 INFO [stderr] 21 |             file.read_to_end(&mut data);
Dec 07 16:14:24.076 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 16:14:24.076 INFO [stderr]    |
Dec 07 16:14:24.076 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 07 16:14:24.076 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 16:14:24.076 INFO [stderr] 
Dec 07 16:14:24.076 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 16:14:24.076 INFO [stderr]   --> src/lib.rs:41:13
Dec 07 16:14:24.076 INFO [stderr]    |
Dec 07 16:14:24.076 INFO [stderr] 41 |             file.read_to_string(&mut content);
Dec 07 16:14:24.076 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 16:14:24.076 INFO [stderr]    |
Dec 07 16:14:24.076 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 16:14:24.076 INFO [stderr] 
Dec 07 16:14:24.076 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 16:14:24.077 INFO [stderr]   --> src/lib.rs:61:13
Dec 07 16:14:24.077 INFO [stderr]    |
Dec 07 16:14:24.077 INFO [stderr] 61 |             file.read_to_string(&mut content);
Dec 07 16:14:24.077 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 16:14:24.077 INFO [stderr]    |
Dec 07 16:14:24.077 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 16:14:24.077 INFO [stderr] 
Dec 07 16:14:24.077 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 16:14:24.077 INFO [stderr]   --> src/lib.rs:87:13
Dec 07 16:14:24.077 INFO [stderr]    |
Dec 07 16:14:24.077 INFO [stderr] 87 |             file.read_to_string(&mut content);
Dec 07 16:14:24.077 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 16:14:24.077 INFO [stderr]    |
Dec 07 16:14:24.077 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 16:14:24.077 INFO [stderr] 
Dec 07 16:14:24.393 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
Dec 07 16:14:24.393 INFO [stderr] su: No module specific data is present
Dec 07 16:14:25.076 INFO running `"docker" "inspect" "a7a25efd3c08ce6997ab9946bb73e00d9ad550540bf250335581e8e3e7fd5ca7"`
Dec 07 16:14:25.340 INFO running `"docker" "rm" "-f" "a7a25efd3c08ce6997ab9946bb73e00d9ad550540bf250335581e8e3e7fd5ca7"`
Dec 07 16:14:25.608 INFO [stdout] a7a25efd3c08ce6997ab9946bb73e00d9ad550540bf250335581e8e3e7fd5ca7
Dec 07 16:14:25.614 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 07 16:14:26.056 INFO [stdout] 49908fa85ff19388cbb54b102637f2d0d464dc38199d0ec4d19c957737917187
Dec 07 16:14:26.062 INFO running `"docker" "start" "-a" "49908fa85ff19388cbb54b102637f2d0d464dc38199d0ec4d19c957737917187"`
Dec 07 16:14:27.020 INFO [stderr] usermod: no changes
Dec 07 16:14:27.064 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 07 16:14:27.064 INFO [stderr]      Running /target/debug/deps/fstream-8db66c682fb8040b
Dec 07 16:14:27.068 INFO [stdout] 
Dec 07 16:14:27.068 INFO [stdout] running 0 tests
Dec 07 16:14:27.068 INFO [stdout] 
Dec 07 16:14:27.068 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 16:14:27.068 INFO [stdout] 
Dec 07 16:14:27.072 INFO [stderr]    Doc-tests fstream
Dec 07 16:14:27.988 INFO [stdout] 
Dec 07 16:14:27.988 INFO [stdout] running 0 tests
Dec 07 16:14:27.988 INFO [stdout] 
Dec 07 16:14:27.988 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 16:14:27.988 INFO [stdout] 
Dec 07 16:14:27.993 INFO [stderr] su: No module specific data is present
Dec 07 16:14:28.549 INFO running `"docker" "inspect" "49908fa85ff19388cbb54b102637f2d0d464dc38199d0ec4d19c957737917187"`
Dec 07 16:14:28.736 INFO running `"docker" "rm" "-f" "49908fa85ff19388cbb54b102637f2d0d464dc38199d0ec4d19c957737917187"`
Dec 07 16:14:28.936 INFO [stdout] 49908fa85ff19388cbb54b102637f2d0d464dc38199d0ec4d19c957737917187