Dec 06 08:41:20.629 INFO testing VitalyAnkh/learn_error_handling against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 08:41:20.630 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 08:41:21.172 INFO [stdout] 7cc5b734325013e25dca24c27fdb60296d20c88237aaa6999056af1bc2567fab
Dec 06 08:41:21.180 INFO running `"docker" "start" "-a" "7cc5b734325013e25dca24c27fdb60296d20c88237aaa6999056af1bc2567fab"`
Dec 06 08:41:22.183 INFO [stderr] usermod: no changes
Dec 06 08:41:22.217 INFO [stderr]    Compiling learn_error_handling v0.1.0 (/source)
Dec 06 08:41:22.589 INFO [stderr] warning: unused imports: `Cons`, `Nil`
Dec 06 08:41:22.590 INFO [stderr]  --> src/smart_pointer/rc.rs:7:18
Dec 06 08:41:22.590 INFO [stderr]   |
Dec 06 08:41:22.590 INFO [stderr] 7 | use self::List::{Cons,Nil};
Dec 06 08:41:22.590 INFO [stderr]   |                  ^^^^ ^^^
Dec 06 08:41:22.590 INFO [stderr]   |
Dec 06 08:41:22.590 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 08:41:22.590 INFO [stderr] 
Dec 06 08:41:22.600 INFO [stderr] warning: struct is never constructed: `Guess`
Dec 06 08:41:22.600 INFO [stderr]  --> src/read/mod.rs:5:1
Dec 06 08:41:22.600 INFO [stderr]   |
Dec 06 08:41:22.600 INFO [stderr] 5 | struct Guess {
Dec 06 08:41:22.600 INFO [stderr]   | ^^^^^^^^^^^^
Dec 06 08:41:22.600 INFO [stderr]   |
Dec 06 08:41:22.600 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 08:41:22.600 INFO [stderr] 
Dec 06 08:41:22.600 INFO [stderr] warning: method is never used: `new`
Dec 06 08:41:22.600 INFO [stderr]   --> src/read/mod.rs:10:5
Dec 06 08:41:22.600 INFO [stderr]    |
Dec 06 08:41:22.600 INFO [stderr] 10 |     fn new(value: u32) -> Guess {
Dec 06 08:41:22.600 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 08:41:22.600 INFO [stderr] 
Dec 06 08:41:22.600 INFO [stderr] warning: enum is never used: `List`
Dec 06 08:41:22.600 INFO [stderr]  --> src/smart_pointer/rc.rs:1:1
Dec 06 08:41:22.600 INFO [stderr]   |
Dec 06 08:41:22.600 INFO [stderr] 1 | enum List{
Dec 06 08:41:22.600 INFO [stderr]   | ^^^^^^^^^
Dec 06 08:41:22.600 INFO [stderr] 
Dec 06 08:41:22.600 INFO [stderr] warning: comparison is useless due to type limits
Dec 06 08:41:22.600 INFO [stderr]   --> src/read/mod.rs:11:12
Dec 06 08:41:22.600 INFO [stderr]    |
Dec 06 08:41:22.600 INFO [stderr] 11 |         if value < 0 || value > 100 {
Dec 06 08:41:22.600 INFO [stderr]    |            ^^^^^^^^^
Dec 06 08:41:22.600 INFO [stderr]    |
Dec 06 08:41:22.600 INFO [stderr]    = note: #[warn(unused_comparisons)] on by default
Dec 06 08:41:22.600 INFO [stderr] 
Dec 06 08:41:23.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
Dec 06 08:41:23.656 INFO [stderr] su: No module specific data is present
Dec 06 08:41:24.524 INFO running `"docker" "inspect" "7cc5b734325013e25dca24c27fdb60296d20c88237aaa6999056af1bc2567fab"`
Dec 06 08:41:24.846 INFO running `"docker" "rm" "-f" "7cc5b734325013e25dca24c27fdb60296d20c88237aaa6999056af1bc2567fab"`
Dec 06 08:41:25.163 INFO [stdout] 7cc5b734325013e25dca24c27fdb60296d20c88237aaa6999056af1bc2567fab
Dec 06 08:41:25.170 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 08:41:25.732 INFO [stdout] 9b2de17254510e6bff367f63790445ec9330529cc7ff78c4524f2f055ac0cfd3
Dec 06 08:41:25.738 INFO running `"docker" "start" "-a" "9b2de17254510e6bff367f63790445ec9330529cc7ff78c4524f2f055ac0cfd3"`
Dec 06 08:41:27.039 INFO [stderr] usermod: no changes
Dec 06 08:41:27.116 INFO [stderr]    Compiling learn_error_handling v0.1.0 (/source)
Dec 06 08:41:27.832 INFO [stderr] warning: unused variable: `y`
Dec 06 08:41:27.832 INFO [stderr]   --> tests/integration_test.rs:11:9
Dec 06 08:41:27.832 INFO [stderr]    |
Dec 06 08:41:27.832 INFO [stderr] 11 |     let y =&a;
Dec 06 08:41:27.832 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 06 08:41:27.832 INFO [stderr]    |
Dec 06 08:41:27.832 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 06 08:41:27.832 INFO [stderr] 
Dec 06 08:41:27.832 INFO [stderr] warning: function is never used: `it_add_two`
Dec 06 08:41:27.832 INFO [stderr]  --> tests/integration_test.rs:5:1
Dec 06 08:41:27.832 INFO [stderr]   |
Dec 06 08:41:27.832 INFO [stderr] 5 | fn it_add_two(){
Dec 06 08:41:27.832 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 06 08:41:27.832 INFO [stderr]   |
Dec 06 08:41:27.832 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 08:41:27.832 INFO [stderr] 
Dec 06 08:41:27.832 INFO [stderr] warning: function is never used: `check_borrow_rules`
Dec 06 08:41:27.832 INFO [stderr]  --> tests/integration_test.rs:9:1
Dec 06 08:41:27.832 INFO [stderr]   |
Dec 06 08:41:27.832 INFO [stderr] 9 | fn check_borrow_rules(){
Dec 06 08:41:27.832 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 08:41:27.832 INFO [stderr] 
Dec 06 08:41:27.912 INFO [stderr] warning: unused variable: `b`
Dec 06 08:41:27.912 INFO [stderr]   --> src/smart_pointer/rc.rs:12:9
Dec 06 08:41:27.912 INFO [stderr]    |
Dec 06 08:41:27.912 INFO [stderr] 12 |     let b = Cons(2,Rc::clone(&a));
Dec 06 08:41:27.912 INFO [stderr]    |         ^ help: consider using `_b` instead
Dec 06 08:41:27.912 INFO [stderr]    |
Dec 06 08:41:27.912 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 06 08:41:27.912 INFO [stderr] 
Dec 06 08:41:27.912 INFO [stderr] warning: unused variable: `y`
Dec 06 08:41:27.912 INFO [stderr]  --> src/smart_pointer/ref_cell.rs:4:13
Dec 06 08:41:27.912 INFO [stderr]   |
Dec 06 08:41:27.912 INFO [stderr] 4 |     let mut y =&a;
Dec 06 08:41:27.912 INFO [stderr]   |             ^ help: consider using `_y` instead
Dec 06 08:41:27.912 INFO [stderr] 
Dec 06 08:41:27.915 INFO [stderr] warning: variable does not need to be mutable
Dec 06 08:41:27.915 INFO [stderr]  --> src/smart_pointer/ref_cell.rs:4:9
Dec 06 08:41:27.915 INFO [stderr]   |
Dec 06 08:41:27.915 INFO [stderr] 4 |     let mut y =&a;
Dec 06 08:41:27.915 INFO [stderr]   |         ----^
Dec 06 08:41:27.915 INFO [stderr]   |         |
Dec 06 08:41:27.915 INFO [stderr]   |         help: remove this `mut`
Dec 06 08:41:27.915 INFO [stderr]   |
Dec 06 08:41:27.915 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 06 08:41:27.915 INFO [stderr] 
Dec 06 08:41:27.920 INFO [stderr] warning: field is never used: `value`
Dec 06 08:41:27.920 INFO [stderr]  --> src/read/mod.rs:6:5
Dec 06 08:41:27.920 INFO [stderr]   |
Dec 06 08:41:27.920 INFO [stderr] 6 |     value: u32
Dec 06 08:41:27.920 INFO [stderr]   |     ^^^^^^^^^^
Dec 06 08:41:27.920 INFO [stderr]   |
Dec 06 08:41:27.920 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 08:41:27.920 INFO [stderr] 
Dec 06 08:41:27.920 INFO [stderr] warning: comparison is useless due to type limits
Dec 06 08:41:27.920 INFO [stderr]   --> src/read/mod.rs:11:12
Dec 06 08:41:27.920 INFO [stderr]    |
Dec 06 08:41:27.920 INFO [stderr] 11 |         if value < 0 || value > 100 {
Dec 06 08:41:27.920 INFO [stderr]    |            ^^^^^^^^^
Dec 06 08:41:27.920 INFO [stderr]    |
Dec 06 08:41:27.920 INFO [stderr]    = note: #[warn(unused_comparisons)] on by default
Dec 06 08:41:27.920 INFO [stderr] 
Dec 06 08:41:28.504 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
Dec 06 08:41:28.504 INFO [stderr] su: No module specific data is present
Dec 06 08:41:29.338 INFO running `"docker" "inspect" "9b2de17254510e6bff367f63790445ec9330529cc7ff78c4524f2f055ac0cfd3"`
Dec 06 08:41:29.588 INFO running `"docker" "rm" "-f" "9b2de17254510e6bff367f63790445ec9330529cc7ff78c4524f2f055ac0cfd3"`
Dec 06 08:41:29.915 INFO [stdout] 9b2de17254510e6bff367f63790445ec9330529cc7ff78c4524f2f055ac0cfd3
Dec 06 08:41:29.918 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 08:41:30.337 INFO [stdout] 8b33ce1f2ecd9e8a28c080f2ccc3fe7a44ca2b2ea84ed31b0b1711af9cba1fa4
Dec 06 08:41:30.344 INFO running `"docker" "start" "-a" "8b33ce1f2ecd9e8a28c080f2ccc3fe7a44ca2b2ea84ed31b0b1711af9cba1fa4"`
Dec 06 08:41:31.608 INFO [stderr] usermod: no changes
Dec 06 08:41:31.660 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 06 08:41:31.660 INFO [stderr]      Running /target/debug/deps/learn_error_handling-d263f849e2cfdedf
Dec 06 08:41:31.661 INFO [stdout] 
Dec 06 08:41:31.661 INFO [stdout] running 3 tests
Dec 06 08:41:31.668 INFO [stdout] test smart_pointer::rc::test_rc ... ok
Dec 06 08:41:31.668 INFO [stdout] test smart_pointer::ref_cell::check_borrow_rules ... ok
Dec 06 08:41:31.744 INFO [stdout] test read::tests::greater_than_100 ... ok
Dec 06 08:41:31.744 INFO [stderr]      Running /target/debug/deps/learn_error_handling-bb26b59fd1d3ac83
Dec 06 08:41:31.744 INFO [stdout] 
Dec 06 08:41:31.744 INFO [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 08:41:31.744 INFO [stdout] 
Dec 06 08:41:31.752 INFO [stdout] 
Dec 06 08:41:31.752 INFO [stdout] running 0 tests
Dec 06 08:41:31.752 INFO [stdout] 
Dec 06 08:41:31.752 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 08:41:31.752 INFO [stdout] 
Dec 06 08:41:31.760 INFO [stdout] 
Dec 06 08:41:31.760 INFO [stderr]      Running /target/debug/deps/integration_test-d6a7d1b10a1673fd
Dec 06 08:41:31.760 INFO [stdout] running 0 tests
Dec 06 08:41:31.760 INFO [stderr]    Doc-tests learn_error_handling
Dec 06 08:41:31.760 INFO [stdout] 
Dec 06 08:41:31.760 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 08:41:31.760 INFO [stdout] 
Dec 06 08:41:32.420 INFO [stdout] 
Dec 06 08:41:32.420 INFO [stdout] running 0 tests
Dec 06 08:41:32.420 INFO [stdout] 
Dec 06 08:41:32.420 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 08:41:32.420 INFO [stdout] 
Dec 06 08:41:32.424 INFO [stderr] su: No module specific data is present
Dec 06 08:41:32.860 INFO running `"docker" "inspect" "8b33ce1f2ecd9e8a28c080f2ccc3fe7a44ca2b2ea84ed31b0b1711af9cba1fa4"`
Dec 06 08:41:33.052 INFO running `"docker" "rm" "-f" "8b33ce1f2ecd9e8a28c080f2ccc3fe7a44ca2b2ea84ed31b0b1711af9cba1fa4"`
Dec 06 08:41:33.416 INFO [stdout] 8b33ce1f2ecd9e8a28c080f2ccc3fe7a44ca2b2ea84ed31b0b1711af9cba1fa4