Nov 16 08:05:55.586 INFO testing wu1274704958/LinkedList against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 16 08:05:55.587 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 16 08:05:55.810 INFO [stdout] 316040ddf01a0c8c2c28ee281bcac4c6af3d4d6eb99a08b844e63866eabb913c
Nov 16 08:05:55.816 INFO running `"docker" "start" "-a" "316040ddf01a0c8c2c28ee281bcac4c6af3d4d6eb99a08b844e63866eabb913c"`
Nov 16 08:05:56.160 INFO [stderr] usermod: no changes
Nov 16 08:05:56.187 INFO [stderr]    Compiling LinkedList v0.1.0 (/source)
Nov 16 08:05:56.256 INFO [stderr] warning: unused import: `std::cell::Ref`
Nov 16 08:05:56.256 INFO [stderr]  --> src/lib.rs:7:5
Nov 16 08:05:56.256 INFO [stderr]   |
Nov 16 08:05:56.256 INFO [stderr] 7 | use std::cell::Ref;
Nov 16 08:05:56.256 INFO [stderr]   |     ^^^^^^^^^^^^^^
Nov 16 08:05:56.256 INFO [stderr]   |
Nov 16 08:05:56.256 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 16 08:05:56.256 INFO [stderr] 
Nov 16 08:05:56.256 INFO [stderr] warning: unused import: `std::convert`
Nov 16 08:05:56.256 INFO [stderr]  --> src/lib.rs:8:5
Nov 16 08:05:56.256 INFO [stderr]   |
Nov 16 08:05:56.256 INFO [stderr] 8 | use std::convert;
Nov 16 08:05:56.256 INFO [stderr]   |     ^^^^^^^^^^^^
Nov 16 08:05:56.256 INFO [stderr] 
Nov 16 08:05:56.307 INFO [stderr] warning: unused variable: `i`
Nov 16 08:05:56.307 INFO [stderr]   --> src/lib.rs:59:13
Nov 16 08:05:56.307 INFO [stderr]    |
Nov 16 08:05:56.307 INFO [stderr] 59 |         for i in 0..index {
Nov 16 08:05:56.307 INFO [stderr]    |             ^ help: consider using `_i` instead
Nov 16 08:05:56.307 INFO [stderr]    |
Nov 16 08:05:56.307 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 08:05:56.307 INFO [stderr] 
Nov 16 08:05:56.307 INFO [stderr] warning: unused variable: `i`
Nov 16 08:05:56.307 INFO [stderr]    --> src/lib.rs:147:17
Nov 16 08:05:56.307 INFO [stderr]     |
Nov 16 08:05:56.307 INFO [stderr] 147 |             for i in 0..(index - 1) {
Nov 16 08:05:56.307 INFO [stderr]     |                 ^ help: consider using `_i` instead
Nov 16 08:05:56.307 INFO [stderr] 
Nov 16 08:05:56.313 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:56.313 INFO [stderr]   --> src/lib.rs:84:13
Nov 16 08:05:56.313 INFO [stderr]    |
Nov 16 08:05:56.313 INFO [stderr] 84 |         let mut c: *mut Node<T>;
Nov 16 08:05:56.313 INFO [stderr]    |             ----^
Nov 16 08:05:56.313 INFO [stderr]    |             |
Nov 16 08:05:56.313 INFO [stderr]    |             help: remove this `mut`
Nov 16 08:05:56.313 INFO [stderr]    |
Nov 16 08:05:56.313 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 16 08:05:56.313 INFO [stderr] 
Nov 16 08:05:56.313 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:56.313 INFO [stderr]   --> src/lib.rs:85:13
Nov 16 08:05:56.313 INFO [stderr]    |
Nov 16 08:05:56.313 INFO [stderr] 85 |         let mut a: *mut Option<Rc<RefCell<Node<T>>>>;
Nov 16 08:05:56.313 INFO [stderr]    |             ----^
Nov 16 08:05:56.313 INFO [stderr]    |             |
Nov 16 08:05:56.313 INFO [stderr]    |             help: remove this `mut`
Nov 16 08:05:56.313 INFO [stderr] 
Nov 16 08:05:56.314 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:56.314 INFO [stderr]    --> src/lib.rs:101:13
Nov 16 08:05:56.314 INFO [stderr]     |
Nov 16 08:05:56.314 INFO [stderr] 101 |         let mut a: *mut Option<Rc<RefCell<Node<T>>>>;
Nov 16 08:05:56.314 INFO [stderr]     |             ----^
Nov 16 08:05:56.314 INFO [stderr]     |             |
Nov 16 08:05:56.314 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:56.314 INFO [stderr] 
Nov 16 08:05:56.314 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:56.314 INFO [stderr]    --> src/lib.rs:102:13
Nov 16 08:05:56.314 INFO [stderr]     |
Nov 16 08:05:56.314 INFO [stderr] 102 |         let mut b: *mut T;
Nov 16 08:05:56.314 INFO [stderr]     |             ----^
Nov 16 08:05:56.314 INFO [stderr]     |             |
Nov 16 08:05:56.314 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:56.314 INFO [stderr] 
Nov 16 08:05:56.316 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:56.316 INFO [stderr]    --> src/lib.rs:122:13
Nov 16 08:05:56.316 INFO [stderr]     |
Nov 16 08:05:56.316 INFO [stderr] 122 |         let mut last: *mut Node<T>;
Nov 16 08:05:56.316 INFO [stderr]     |             ----^^^^
Nov 16 08:05:56.316 INFO [stderr]     |             |
Nov 16 08:05:56.316 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:56.316 INFO [stderr] 
Nov 16 08:05:56.316 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:56.316 INFO [stderr]    --> src/lib.rs:123:13
Nov 16 08:05:56.316 INFO [stderr]     |
Nov 16 08:05:56.316 INFO [stderr] 123 |         let mut mid: Rc<RefCell<Node<T>>>;
Nov 16 08:05:56.316 INFO [stderr]     |             ----^^^
Nov 16 08:05:56.316 INFO [stderr]     |             |
Nov 16 08:05:56.316 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:56.316 INFO [stderr] 
Nov 16 08:05:56.316 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:56.316 INFO [stderr]    --> src/lib.rs:124:13
Nov 16 08:05:56.316 INFO [stderr]     |
Nov 16 08:05:56.316 INFO [stderr] 124 |         let mut next: Rc<RefCell<Node<T>>>;
Nov 16 08:05:56.316 INFO [stderr]     |             ----^^^^
Nov 16 08:05:56.316 INFO [stderr]     |             |
Nov 16 08:05:56.316 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:56.316 INFO [stderr] 
Nov 16 08:05:56.320 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:56.320 INFO [stderr]    --> src/lib.rs:216:13
Nov 16 08:05:56.320 INFO [stderr]     |
Nov 16 08:05:56.320 INFO [stderr] 216 |         let mut a : &'a Rc<RefCell<Node<T>>>;
Nov 16 08:05:56.320 INFO [stderr]     |             ----^
Nov 16 08:05:56.320 INFO [stderr]     |             |
Nov 16 08:05:56.320 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:56.320 INFO [stderr] 
Nov 16 08:05:56.320 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:56.320 INFO [stderr]    --> src/lib.rs:217:13
Nov 16 08:05:56.320 INFO [stderr]     |
Nov 16 08:05:56.320 INFO [stderr] 217 |         let mut b :  RefMut<Node<T>>;
Nov 16 08:05:56.320 INFO [stderr]     |             ----^
Nov 16 08:05:56.320 INFO [stderr]     |             |
Nov 16 08:05:56.320 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:56.320 INFO [stderr] 
Nov 16 08:05:56.320 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:56.320 INFO [stderr]    --> src/lib.rs:218:13
Nov 16 08:05:56.320 INFO [stderr]     |
Nov 16 08:05:56.320 INFO [stderr] 218 |         let mut c : * mut T;
Nov 16 08:05:56.320 INFO [stderr]     |             ----^
Nov 16 08:05:56.320 INFO [stderr]     |             |
Nov 16 08:05:56.320 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:56.320 INFO [stderr] 
Nov 16 08:05:56.320 INFO [stderr] warning: crate `LinkedList` should have a snake case name such as `linked_list`
Nov 16 08:05:56.320 INFO [stderr]   |
Nov 16 08:05:56.320 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 16 08:05:56.320 INFO [stderr] 
Nov 16 08:05:56.321 INFO [stderr] warning: structure field `phantomData` should have a snake case name such as `phantom_data`
Nov 16 08:05:56.321 INFO [stderr]   --> src/lib.rs:17:5
Nov 16 08:05:56.321 INFO [stderr]    |
Nov 16 08:05:56.321 INFO [stderr] 17 |     phantomData : PhantomData<&'a T>
Nov 16 08:05:56.321 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 08:05:56.322 INFO [stderr] 
Nov 16 08:05:56.322 INFO [stderr] warning: method `getSize` should have a snake case name such as `get_size`
Nov 16 08:05:56.322 INFO [stderr]   --> src/lib.rs:76:5
Nov 16 08:05:56.322 INFO [stderr]    |
Nov 16 08:05:56.322 INFO [stderr] 76 | /     pub fn getSize(&self) -> u32 {
Nov 16 08:05:56.322 INFO [stderr] 77 | |         self.size
Nov 16 08:05:56.322 INFO [stderr] 78 | |     }
Nov 16 08:05:56.322 INFO [stderr]    | |_____^
Nov 16 08:05:56.322 INFO [stderr] 
Nov 16 08:05:56.322 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 08:05:56.322 INFO [stderr]    --> src/lib.rs:188:13
Nov 16 08:05:56.322 INFO [stderr]     |
Nov 16 08:05:56.322 INFO [stderr] 188 |             write!(f, "[ ");
Nov 16 08:05:56.322 INFO [stderr]     |             ^^^^^^^^^^^^^^^^
Nov 16 08:05:56.322 INFO [stderr]     |
Nov 16 08:05:56.322 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 16 08:05:56.322 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 08:05:56.322 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 16 08:05:56.322 INFO [stderr] 
Nov 16 08:05:56.322 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 08:05:56.322 INFO [stderr]    --> src/lib.rs:194:29
Nov 16 08:05:56.322 INFO [stderr]     |
Nov 16 08:05:56.322 INFO [stderr] 194 |                             write!(f, "{}", *b);
Nov 16 08:05:56.322 INFO [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^
Nov 16 08:05:56.322 INFO [stderr]     |
Nov 16 08:05:56.322 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 08:05:56.322 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 16 08:05:56.322 INFO [stderr] 
Nov 16 08:05:56.322 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 08:05:56.322 INFO [stderr]    --> src/lib.rs:196:29
Nov 16 08:05:56.322 INFO [stderr]     |
Nov 16 08:05:56.322 INFO [stderr] 196 |                             write!(f, "{},", *b);
Nov 16 08:05:56.322 INFO [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^
Nov 16 08:05:56.322 INFO [stderr]     |
Nov 16 08:05:56.322 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 08:05:56.322 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 16 08:05:56.322 INFO [stderr] 
Nov 16 08:05:56.322 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 08:05:56.322 INFO [stderr]    --> src/lib.rs:201:25
Nov 16 08:05:56.322 INFO [stderr]     |
Nov 16 08:05:56.322 INFO [stderr] 201 |                         write!(f, " ]");
Nov 16 08:05:56.322 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^
Nov 16 08:05:56.322 INFO [stderr]     |
Nov 16 08:05:56.322 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 08:05:56.322 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 16 08:05:56.322 INFO [stderr] 
Nov 16 08:05:56.480 INFO [stderr] warning: function is never used: `test2`
Nov 16 08:05:56.480 INFO [stderr]   --> src/main.rs:68:1
Nov 16 08:05:56.480 INFO [stderr]    |
Nov 16 08:05:56.480 INFO [stderr] 68 | fn test2()
Nov 16 08:05:56.480 INFO [stderr]    | ^^^^^^^^^^
Nov 16 08:05:56.480 INFO [stderr]    |
Nov 16 08:05:56.480 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 16 08:05:56.480 INFO [stderr] 
Nov 16 08:05:56.480 INFO [stderr] warning: function is never used: `test3`
Nov 16 08:05:56.480 INFO [stderr]   --> src/main.rs:75:1
Nov 16 08:05:56.480 INFO [stderr]    |
Nov 16 08:05:56.480 INFO [stderr] 75 | fn test3()
Nov 16 08:05:56.480 INFO [stderr]    | ^^^^^^^^^^
Nov 16 08:05:56.480 INFO [stderr] 
Nov 16 08:05:56.483 INFO [stderr] warning: crate `LinkedList` should have a snake case name such as `linked_list`
Nov 16 08:05:56.483 INFO [stderr]   |
Nov 16 08:05:56.483 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 16 08:05:56.483 INFO [stderr] 
Nov 16 08:05:56.727 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
Nov 16 08:05:56.728 INFO [stderr] su: No module specific data is present
Nov 16 08:05:56.996 INFO running `"docker" "inspect" "316040ddf01a0c8c2c28ee281bcac4c6af3d4d6eb99a08b844e63866eabb913c"`
Nov 16 08:05:57.113 INFO running `"docker" "rm" "-f" "316040ddf01a0c8c2c28ee281bcac4c6af3d4d6eb99a08b844e63866eabb913c"`
Nov 16 08:05:57.194 INFO [stdout] 316040ddf01a0c8c2c28ee281bcac4c6af3d4d6eb99a08b844e63866eabb913c
Nov 16 08:05:57.196 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 16 08:05:57.379 INFO [stdout] df381c57e668aa3aec6405e2edbfad069e9f9ef0391a7df9f8c9f04835654e07
Nov 16 08:05:57.387 INFO running `"docker" "start" "-a" "df381c57e668aa3aec6405e2edbfad069e9f9ef0391a7df9f8c9f04835654e07"`
Nov 16 08:05:58.457 INFO [stderr] usermod: no changes
Nov 16 08:05:58.511 INFO [stderr]    Compiling LinkedList v0.1.0 (/source)
Nov 16 08:05:58.663 INFO [stderr] warning: unused import: `std::cell::Ref`
Nov 16 08:05:58.663 INFO [stderr]  --> src/lib.rs:7:5
Nov 16 08:05:58.663 INFO [stderr]   |
Nov 16 08:05:58.663 INFO [stderr] 7 | use std::cell::Ref;
Nov 16 08:05:58.663 INFO [stderr]   |     ^^^^^^^^^^^^^^
Nov 16 08:05:58.663 INFO [stderr]   |
Nov 16 08:05:58.663 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 16 08:05:58.663 INFO [stderr] 
Nov 16 08:05:58.663 INFO [stderr] warning: unused import: `std::convert`
Nov 16 08:05:58.663 INFO [stderr]  --> src/lib.rs:8:5
Nov 16 08:05:58.664 INFO [stderr]   |
Nov 16 08:05:58.664 INFO [stderr] 8 | use std::convert;
Nov 16 08:05:58.664 INFO [stderr]   |     ^^^^^^^^^^^^
Nov 16 08:05:58.664 INFO [stderr] 
Nov 16 08:05:58.811 INFO [stderr] warning: unused variable: `i`
Nov 16 08:05:58.811 INFO [stderr]   --> src/lib.rs:59:13
Nov 16 08:05:58.811 INFO [stderr]    |
Nov 16 08:05:58.811 INFO [stderr] 59 |         for i in 0..index {
Nov 16 08:05:58.811 INFO [stderr]    |             ^ help: consider using `_i` instead
Nov 16 08:05:58.811 INFO [stderr]    |
Nov 16 08:05:58.811 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 08:05:58.811 INFO [stderr] 
Nov 16 08:05:58.811 INFO [stderr] warning: unused variable: `i`
Nov 16 08:05:58.811 INFO [stderr]    --> src/lib.rs:147:17
Nov 16 08:05:58.812 INFO [stderr]     |
Nov 16 08:05:58.812 INFO [stderr] 147 |             for i in 0..(index - 1) {
Nov 16 08:05:58.812 INFO [stderr]     |                 ^ help: consider using `_i` instead
Nov 16 08:05:58.812 INFO [stderr] 
Nov 16 08:05:58.815 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:58.815 INFO [stderr]   --> src/lib.rs:84:13
Nov 16 08:05:58.815 INFO [stderr]    |
Nov 16 08:05:58.815 INFO [stderr] 84 |         let mut c: *mut Node<T>;
Nov 16 08:05:58.815 INFO [stderr]    |             ----^
Nov 16 08:05:58.815 INFO [stderr]    |             |
Nov 16 08:05:58.815 INFO [stderr]    |             help: remove this `mut`
Nov 16 08:05:58.815 INFO [stderr]    |
Nov 16 08:05:58.815 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 16 08:05:58.815 INFO [stderr] 
Nov 16 08:05:58.816 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:58.816 INFO [stderr]   --> src/lib.rs:85:13
Nov 16 08:05:58.816 INFO [stderr]    |
Nov 16 08:05:58.816 INFO [stderr] 85 |         let mut a: *mut Option<Rc<RefCell<Node<T>>>>;
Nov 16 08:05:58.816 INFO [stderr]    |             ----^
Nov 16 08:05:58.816 INFO [stderr]    |             |
Nov 16 08:05:58.816 INFO [stderr]    |             help: remove this `mut`
Nov 16 08:05:58.816 INFO [stderr] 
Nov 16 08:05:58.816 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:58.816 INFO [stderr]    --> src/lib.rs:101:13
Nov 16 08:05:58.816 INFO [stderr]     |
Nov 16 08:05:58.816 INFO [stderr] 101 |         let mut a: *mut Option<Rc<RefCell<Node<T>>>>;
Nov 16 08:05:58.816 INFO [stderr]     |             ----^
Nov 16 08:05:58.816 INFO [stderr]     |             |
Nov 16 08:05:58.816 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:58.816 INFO [stderr] 
Nov 16 08:05:58.816 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:58.816 INFO [stderr]    --> src/lib.rs:102:13
Nov 16 08:05:58.816 INFO [stderr]     |
Nov 16 08:05:58.816 INFO [stderr] 102 |         let mut b: *mut T;
Nov 16 08:05:58.816 INFO [stderr]     |             ----^
Nov 16 08:05:58.816 INFO [stderr]     |             |
Nov 16 08:05:58.816 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:58.817 INFO [stderr] 
Nov 16 08:05:58.819 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:58.819 INFO [stderr]    --> src/lib.rs:122:13
Nov 16 08:05:58.819 INFO [stderr]     |
Nov 16 08:05:58.819 INFO [stderr] 122 |         let mut last: *mut Node<T>;
Nov 16 08:05:58.819 INFO [stderr]     |             ----^^^^
Nov 16 08:05:58.819 INFO [stderr]     |             |
Nov 16 08:05:58.819 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:58.819 INFO [stderr] 
Nov 16 08:05:58.820 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:58.820 INFO [stderr]    --> src/lib.rs:123:13
Nov 16 08:05:58.820 INFO [stderr]     |
Nov 16 08:05:58.820 INFO [stderr] 123 |         let mut mid: Rc<RefCell<Node<T>>>;
Nov 16 08:05:58.820 INFO [stderr]     |             ----^^^
Nov 16 08:05:58.820 INFO [stderr]     |             |
Nov 16 08:05:58.820 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:58.820 INFO [stderr] 
Nov 16 08:05:58.820 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:58.820 INFO [stderr]    --> src/lib.rs:124:13
Nov 16 08:05:58.820 INFO [stderr]     |
Nov 16 08:05:58.820 INFO [stderr] 124 |         let mut next: Rc<RefCell<Node<T>>>;
Nov 16 08:05:58.820 INFO [stderr]     |             ----^^^^
Nov 16 08:05:58.821 INFO [stderr]     |             |
Nov 16 08:05:58.821 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:58.821 INFO [stderr] 
Nov 16 08:05:58.823 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:58.823 INFO [stderr]    --> src/lib.rs:216:13
Nov 16 08:05:58.823 INFO [stderr]     |
Nov 16 08:05:58.823 INFO [stderr] 216 |         let mut a : &'a Rc<RefCell<Node<T>>>;
Nov 16 08:05:58.823 INFO [stderr]     |             ----^
Nov 16 08:05:58.823 INFO [stderr]     |             |
Nov 16 08:05:58.823 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:58.823 INFO [stderr] 
Nov 16 08:05:58.823 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:58.823 INFO [stderr]    --> src/lib.rs:217:13
Nov 16 08:05:58.823 INFO [stderr]     |
Nov 16 08:05:58.823 INFO [stderr] 217 |         let mut b :  RefMut<Node<T>>;
Nov 16 08:05:58.823 INFO [stderr]     |             ----^
Nov 16 08:05:58.823 INFO [stderr]     |             |
Nov 16 08:05:58.823 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:58.823 INFO [stderr] 
Nov 16 08:05:58.823 INFO [stderr] warning: variable does not need to be mutable
Nov 16 08:05:58.823 INFO [stderr]    --> src/lib.rs:218:13
Nov 16 08:05:58.823 INFO [stderr]     |
Nov 16 08:05:58.823 INFO [stderr] 218 |         let mut c : * mut T;
Nov 16 08:05:58.823 INFO [stderr]     |             ----^
Nov 16 08:05:58.823 INFO [stderr]     |             |
Nov 16 08:05:58.823 INFO [stderr]     |             help: remove this `mut`
Nov 16 08:05:58.823 INFO [stderr] 
Nov 16 08:05:58.823 INFO [stderr] warning: crate `LinkedList` should have a snake case name such as `linked_list`
Nov 16 08:05:58.823 INFO [stderr]   |
Nov 16 08:05:58.823 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 16 08:05:58.823 INFO [stderr] 
Nov 16 08:05:58.827 INFO [stderr] warning: structure field `phantomData` should have a snake case name such as `phantom_data`
Nov 16 08:05:58.827 INFO [stderr]   --> src/lib.rs:17:5
Nov 16 08:05:58.827 INFO [stderr]    |
Nov 16 08:05:58.827 INFO [stderr] 17 |     phantomData : PhantomData<&'a T>
Nov 16 08:05:58.827 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 08:05:58.827 INFO [stderr] 
Nov 16 08:05:58.827 INFO [stderr] warning: method `getSize` should have a snake case name such as `get_size`
Nov 16 08:05:58.827 INFO [stderr]   --> src/lib.rs:76:5
Nov 16 08:05:58.827 INFO [stderr]    |
Nov 16 08:05:58.827 INFO [stderr] 76 | /     pub fn getSize(&self) -> u32 {
Nov 16 08:05:58.827 INFO [stderr] 77 | |         self.size
Nov 16 08:05:58.827 INFO [stderr] 78 | |     }
Nov 16 08:05:58.827 INFO [stderr]    | |_____^
Nov 16 08:05:58.827 INFO [stderr] 
Nov 16 08:05:58.827 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 08:05:58.827 INFO [stderr]    --> src/lib.rs:188:13
Nov 16 08:05:58.827 INFO [stderr]     |
Nov 16 08:05:58.827 INFO [stderr] 188 |             write!(f, "[ ");
Nov 16 08:05:58.827 INFO [stderr]     |             ^^^^^^^^^^^^^^^^
Nov 16 08:05:58.827 INFO [stderr]     |
Nov 16 08:05:58.827 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 16 08:05:58.827 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 08:05:58.827 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 16 08:05:58.827 INFO [stderr] 
Nov 16 08:05:58.827 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 08:05:58.827 INFO [stderr]    --> src/lib.rs:194:29
Nov 16 08:05:58.827 INFO [stderr]     |
Nov 16 08:05:58.827 INFO [stderr] 194 |                             write!(f, "{}", *b);
Nov 16 08:05:58.827 INFO [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^
Nov 16 08:05:58.827 INFO [stderr]     |
Nov 16 08:05:58.827 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 08:05:58.827 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 16 08:05:58.827 INFO [stderr] 
Nov 16 08:05:58.827 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 08:05:58.827 INFO [stderr]    --> src/lib.rs:196:29
Nov 16 08:05:58.827 INFO [stderr]     |
Nov 16 08:05:58.827 INFO [stderr] 196 |                             write!(f, "{},", *b);
Nov 16 08:05:58.827 INFO [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^
Nov 16 08:05:58.827 INFO [stderr]     |
Nov 16 08:05:58.827 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 08:05:58.827 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 16 08:05:58.827 INFO [stderr] 
Nov 16 08:05:58.827 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 08:05:58.827 INFO [stderr]    --> src/lib.rs:201:25
Nov 16 08:05:58.827 INFO [stderr]     |
Nov 16 08:05:58.827 INFO [stderr] 201 |                         write!(f, " ]");
Nov 16 08:05:58.827 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^
Nov 16 08:05:58.827 INFO [stderr]     |
Nov 16 08:05:58.827 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 08:05:58.828 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 16 08:05:58.828 INFO [stderr] 
Nov 16 08:05:58.835 INFO [stderr] warning: function is never used: `test2`
Nov 16 08:05:58.835 INFO [stderr]   --> src/main.rs:68:1
Nov 16 08:05:58.835 INFO [stderr]    |
Nov 16 08:05:58.835 INFO [stderr] 68 | fn test2()
Nov 16 08:05:58.835 INFO [stderr]    | ^^^^^^^^^^
Nov 16 08:05:58.835 INFO [stderr]    |
Nov 16 08:05:58.835 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 16 08:05:58.835 INFO [stderr] 
Nov 16 08:05:58.835 INFO [stderr] warning: function is never used: `test3`
Nov 16 08:05:58.835 INFO [stderr]   --> src/main.rs:75:1
Nov 16 08:05:58.835 INFO [stderr]    |
Nov 16 08:05:58.835 INFO [stderr] 75 | fn test3()
Nov 16 08:05:58.835 INFO [stderr]    | ^^^^^^^^^^
Nov 16 08:05:58.835 INFO [stderr] 
Nov 16 08:05:58.835 INFO [stderr] warning: crate `LinkedList` should have a snake case name such as `linked_list`
Nov 16 08:05:58.835 INFO [stderr]   |
Nov 16 08:05:58.835 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 16 08:05:58.835 INFO [stderr] 
Nov 16 08:05:59.263 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Nov 16 08:05:59.267 INFO [stderr] su: No module specific data is present
Nov 16 08:05:59.959 INFO running `"docker" "inspect" "df381c57e668aa3aec6405e2edbfad069e9f9ef0391a7df9f8c9f04835654e07"`
Nov 16 08:06:00.281 INFO running `"docker" "rm" "-f" "df381c57e668aa3aec6405e2edbfad069e9f9ef0391a7df9f8c9f04835654e07"`
Nov 16 08:06:00.599 INFO [stdout] df381c57e668aa3aec6405e2edbfad069e9f9ef0391a7df9f8c9f04835654e07
Nov 16 08:06:00.607 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 16 08:06:00.992 INFO [stdout] e841c6f85217b8259ad44ca607b3125cca6b369cb1e1d1d2a944add4c1cdaab5
Nov 16 08:06:00.994 INFO running `"docker" "start" "-a" "e841c6f85217b8259ad44ca607b3125cca6b369cb1e1d1d2a944add4c1cdaab5"`
Nov 16 08:06:02.319 INFO [stderr] usermod: no changes
Nov 16 08:06:02.367 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Nov 16 08:06:02.384 INFO [stdout] 
Nov 16 08:06:02.385 INFO [stderr]      Running /target/debug/deps/LinkedList-9c240d75567cdc59
Nov 16 08:06:02.385 INFO [stdout] running 0 tests
Nov 16 08:06:02.385 INFO [stderr]      Running /target/debug/deps/LinkedList-8398fdf8e485fe16
Nov 16 08:06:02.385 INFO [stdout] 
Nov 16 08:06:02.385 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 08:06:02.385 INFO [stdout] 
Nov 16 08:06:02.385 INFO [stdout] 
Nov 16 08:06:02.385 INFO [stdout] running 0 tests
Nov 16 08:06:02.385 INFO [stdout] 
Nov 16 08:06:02.385 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 08:06:02.385 INFO [stdout] 
Nov 16 08:06:02.395 INFO [stderr]    Doc-tests LinkedList
Nov 16 08:06:02.587 INFO [stdout] 
Nov 16 08:06:02.587 INFO [stdout] running 0 tests
Nov 16 08:06:02.587 INFO [stdout] 
Nov 16 08:06:02.587 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 08:06:02.587 INFO [stdout] 
Nov 16 08:06:02.599 INFO [stderr] su: No module specific data is present
Nov 16 08:06:03.489 INFO running `"docker" "inspect" "e841c6f85217b8259ad44ca607b3125cca6b369cb1e1d1d2a944add4c1cdaab5"`
Nov 16 08:06:03.745 INFO running `"docker" "rm" "-f" "e841c6f85217b8259ad44ca607b3125cca6b369cb1e1d1d2a944add4c1cdaab5"`
Nov 16 08:06:03.995 INFO [stdout] e841c6f85217b8259ad44ca607b3125cca6b369cb1e1d1d2a944add4c1cdaab5