Dec 17 11:48:24.121 INFO checking wu1274704958/LinkedList against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252 Dec 17 11:48:24.121 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/wu1274704958/LinkedList:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"` Dec 17 11:48:24.335 INFO [stdout] 78d80a43be8ced9d7aa0f706c7a1cc04b94fd6811b22395a86e5c48bdd762b24 Dec 17 11:48:24.342 INFO running `"docker" "start" "-a" "78d80a43be8ced9d7aa0f706c7a1cc04b94fd6811b22395a86e5c48bdd762b24"` Dec 17 11:48:25.111 INFO [stderr] Checking LinkedList v0.1.0 (/opt/crater/workdir) Dec 17 11:48:25.188 INFO [stderr] warning: unused import: `std::cell::Ref` Dec 17 11:48:25.188 INFO [stderr] --> src/lib.rs:7:5 Dec 17 11:48:25.188 INFO [stderr] | Dec 17 11:48:25.188 INFO [stderr] 7 | use std::cell::Ref; Dec 17 11:48:25.188 INFO [stderr] | ^^^^^^^^^^^^^^ Dec 17 11:48:25.188 INFO [stderr] | Dec 17 11:48:25.188 INFO [stderr] = note: #[warn(unused_imports)] on by default Dec 17 11:48:25.188 INFO [stderr] Dec 17 11:48:25.192 INFO [stderr] warning: unused import: `std::convert` Dec 17 11:48:25.192 INFO [stderr] --> src/lib.rs:8:5 Dec 17 11:48:25.192 INFO [stderr] | Dec 17 11:48:25.192 INFO [stderr] 8 | use std::convert; Dec 17 11:48:25.192 INFO [stderr] | ^^^^^^^^^^^^ Dec 17 11:48:25.192 INFO [stderr] Dec 17 11:48:25.192 INFO [stderr] warning: unused import: `std::cell::Ref` Dec 17 11:48:25.192 INFO [stderr] --> src/lib.rs:7:5 Dec 17 11:48:25.192 INFO [stderr] | Dec 17 11:48:25.192 INFO [stderr] 7 | use std::cell::Ref; Dec 17 11:48:25.192 INFO [stderr] | ^^^^^^^^^^^^^^ Dec 17 11:48:25.192 INFO [stderr] | Dec 17 11:48:25.192 INFO [stderr] = note: #[warn(unused_imports)] on by default Dec 17 11:48:25.192 INFO [stderr] Dec 17 11:48:25.192 INFO [stderr] warning: unused import: `std::convert` Dec 17 11:48:25.192 INFO [stderr] --> src/lib.rs:8:5 Dec 17 11:48:25.192 INFO [stderr] | Dec 17 11:48:25.192 INFO [stderr] 8 | use std::convert; Dec 17 11:48:25.192 INFO [stderr] | ^^^^^^^^^^^^ Dec 17 11:48:25.192 INFO [stderr] Dec 17 11:48:25.248 INFO [stderr] warning: unused variable: `i` Dec 17 11:48:25.248 INFO [stderr] --> src/lib.rs:59:13 Dec 17 11:48:25.249 INFO [stderr] | Dec 17 11:48:25.249 INFO [stderr] 59 | for i in 0..index { Dec 17 11:48:25.249 INFO [stderr] | ^ help: consider using `_i` instead Dec 17 11:48:25.249 INFO [stderr] | Dec 17 11:48:25.249 INFO [stderr] = note: #[warn(unused_variables)] on by default Dec 17 11:48:25.249 INFO [stderr] Dec 17 11:48:25.249 INFO [stderr] warning: unused variable: `i` Dec 17 11:48:25.249 INFO [stderr] --> src/lib.rs:147:17 Dec 17 11:48:25.249 INFO [stderr] | Dec 17 11:48:25.249 INFO [stderr] 147 | for i in 0..(index - 1) { Dec 17 11:48:25.249 INFO [stderr] | ^ help: consider using `_i` instead Dec 17 11:48:25.249 INFO [stderr] Dec 17 11:48:25.250 INFO [stderr] warning: unused variable: `i` Dec 17 11:48:25.250 INFO [stderr] --> src/lib.rs:59:13 Dec 17 11:48:25.250 INFO [stderr] | Dec 17 11:48:25.250 INFO [stderr] 59 | for i in 0..index { Dec 17 11:48:25.250 INFO [stderr] | ^ help: consider using `_i` instead Dec 17 11:48:25.250 INFO [stderr] | Dec 17 11:48:25.250 INFO [stderr] = note: #[warn(unused_variables)] on by default Dec 17 11:48:25.250 INFO [stderr] Dec 17 11:48:25.252 INFO [stderr] warning: unused variable: `i` Dec 17 11:48:25.252 INFO [stderr] --> src/lib.rs:147:17 Dec 17 11:48:25.252 INFO [stderr] | Dec 17 11:48:25.252 INFO [stderr] 147 | for i in 0..(index - 1) { Dec 17 11:48:25.252 INFO [stderr] | ^ help: consider using `_i` instead Dec 17 11:48:25.252 INFO [stderr] Dec 17 11:48:25.255 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.255 INFO [stderr] --> src/lib.rs:84:13 Dec 17 11:48:25.255 INFO [stderr] | Dec 17 11:48:25.255 INFO [stderr] 84 | let mut c: *mut Node; Dec 17 11:48:25.255 INFO [stderr] | ----^ Dec 17 11:48:25.255 INFO [stderr] | | Dec 17 11:48:25.255 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.255 INFO [stderr] | Dec 17 11:48:25.255 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 17 11:48:25.255 INFO [stderr] Dec 17 11:48:25.256 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.256 INFO [stderr] --> src/lib.rs:85:13 Dec 17 11:48:25.256 INFO [stderr] | Dec 17 11:48:25.256 INFO [stderr] 85 | let mut a: *mut Option>>>; Dec 17 11:48:25.256 INFO [stderr] | ----^ Dec 17 11:48:25.257 INFO [stderr] | | Dec 17 11:48:25.257 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.257 INFO [stderr] Dec 17 11:48:25.257 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.257 INFO [stderr] --> src/lib.rs:101:13 Dec 17 11:48:25.257 INFO [stderr] | Dec 17 11:48:25.257 INFO [stderr] 101 | let mut a: *mut Option>>>; Dec 17 11:48:25.257 INFO [stderr] | ----^ Dec 17 11:48:25.257 INFO [stderr] | | Dec 17 11:48:25.257 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.257 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.257 INFO [stderr] --> src/lib.rs:84:13 Dec 17 11:48:25.257 INFO [stderr] | Dec 17 11:48:25.257 INFO [stderr] 84 | let mut c: *mut Node; Dec 17 11:48:25.257 INFO [stderr] | ----^ Dec 17 11:48:25.257 INFO [stderr] | | Dec 17 11:48:25.257 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.257 INFO [stderr] | Dec 17 11:48:25.257 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 17 11:48:25.257 INFO [stderr] Dec 17 11:48:25.257 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.257 INFO [stderr] --> src/lib.rs:85:13 Dec 17 11:48:25.257 INFO [stderr] | Dec 17 11:48:25.257 INFO [stderr] 85 | let mut a: *mut Option>>>; Dec 17 11:48:25.257 INFO [stderr] | ----^ Dec 17 11:48:25.257 INFO [stderr] | | Dec 17 11:48:25.257 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.257 INFO [stderr] Dec 17 11:48:25.259 INFO [stderr] Dec 17 11:48:25.259 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.259 INFO [stderr] --> src/lib.rs:102:13 Dec 17 11:48:25.259 INFO [stderr] | Dec 17 11:48:25.259 INFO [stderr] 102 | let mut b: *mut T; Dec 17 11:48:25.259 INFO [stderr] | ----^ Dec 17 11:48:25.259 INFO [stderr] | | Dec 17 11:48:25.259 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.259 INFO [stderr] Dec 17 11:48:25.259 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.259 INFO [stderr] --> src/lib.rs:101:13 Dec 17 11:48:25.259 INFO [stderr] | Dec 17 11:48:25.259 INFO [stderr] 101 | let mut a: *mut Option>>>; Dec 17 11:48:25.259 INFO [stderr] | ----^ Dec 17 11:48:25.259 INFO [stderr] | | Dec 17 11:48:25.259 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.259 INFO [stderr] Dec 17 11:48:25.259 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.259 INFO [stderr] --> src/lib.rs:102:13 Dec 17 11:48:25.259 INFO [stderr] | Dec 17 11:48:25.259 INFO [stderr] 102 | let mut b: *mut T; Dec 17 11:48:25.259 INFO [stderr] | ----^ Dec 17 11:48:25.259 INFO [stderr] | | Dec 17 11:48:25.259 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.259 INFO [stderr] Dec 17 11:48:25.261 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.262 INFO [stderr] --> src/lib.rs:122:13 Dec 17 11:48:25.262 INFO [stderr] | Dec 17 11:48:25.262 INFO [stderr] 122 | let mut last: *mut Node; Dec 17 11:48:25.262 INFO [stderr] | ----^^^^ Dec 17 11:48:25.262 INFO [stderr] | | Dec 17 11:48:25.262 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.262 INFO [stderr] Dec 17 11:48:25.262 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.262 INFO [stderr] --> src/lib.rs:123:13 Dec 17 11:48:25.262 INFO [stderr] | Dec 17 11:48:25.262 INFO [stderr] 123 | let mut mid: Rc>>; Dec 17 11:48:25.262 INFO [stderr] | ----^^^ Dec 17 11:48:25.262 INFO [stderr] | | Dec 17 11:48:25.262 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.262 INFO [stderr] Dec 17 11:48:25.262 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.262 INFO [stderr] --> src/lib.rs:124:13 Dec 17 11:48:25.262 INFO [stderr] | Dec 17 11:48:25.262 INFO [stderr] 124 | let mut next: Rc>>; Dec 17 11:48:25.262 INFO [stderr] | ----^^^^ Dec 17 11:48:25.262 INFO [stderr] | | Dec 17 11:48:25.262 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.262 INFO [stderr] Dec 17 11:48:25.262 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.262 INFO [stderr] --> src/lib.rs:122:13 Dec 17 11:48:25.263 INFO [stderr] | Dec 17 11:48:25.263 INFO [stderr] 122 | let mut last: *mut Node; Dec 17 11:48:25.263 INFO [stderr] | ----^^^^ Dec 17 11:48:25.263 INFO [stderr] | | Dec 17 11:48:25.263 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.263 INFO [stderr] Dec 17 11:48:25.263 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.263 INFO [stderr] --> src/lib.rs:123:13 Dec 17 11:48:25.263 INFO [stderr] | Dec 17 11:48:25.263 INFO [stderr] 123 | let mut mid: Rc>>; Dec 17 11:48:25.263 INFO [stderr] | ----^^^ Dec 17 11:48:25.263 INFO [stderr] | | Dec 17 11:48:25.263 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.263 INFO [stderr] Dec 17 11:48:25.263 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.263 INFO [stderr] --> src/lib.rs:124:13 Dec 17 11:48:25.263 INFO [stderr] | Dec 17 11:48:25.263 INFO [stderr] 124 | let mut next: Rc>>; Dec 17 11:48:25.263 INFO [stderr] | ----^^^^ Dec 17 11:48:25.263 INFO [stderr] | | Dec 17 11:48:25.263 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.263 INFO [stderr] Dec 17 11:48:25.268 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.268 INFO [stderr] --> src/lib.rs:216:13 Dec 17 11:48:25.268 INFO [stderr] | Dec 17 11:48:25.268 INFO [stderr] 216 | let mut a : &'a Rc>>; Dec 17 11:48:25.268 INFO [stderr] | ----^ Dec 17 11:48:25.268 INFO [stderr] | | Dec 17 11:48:25.268 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.268 INFO [stderr] Dec 17 11:48:25.268 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.268 INFO [stderr] --> src/lib.rs:216:13 Dec 17 11:48:25.268 INFO [stderr] | Dec 17 11:48:25.268 INFO [stderr] 216 | let mut a : &'a Rc>>; Dec 17 11:48:25.268 INFO [stderr] | ----^ Dec 17 11:48:25.268 INFO [stderr] | | Dec 17 11:48:25.268 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.268 INFO [stderr] Dec 17 11:48:25.268 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.268 INFO [stderr] --> src/lib.rs:217:13 Dec 17 11:48:25.268 INFO [stderr] | Dec 17 11:48:25.268 INFO [stderr] 217 | let mut b : RefMut>; Dec 17 11:48:25.268 INFO [stderr] | ----^ Dec 17 11:48:25.268 INFO [stderr] | | Dec 17 11:48:25.268 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.268 INFO [stderr] Dec 17 11:48:25.268 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.268 INFO [stderr] --> src/lib.rs:217:13 Dec 17 11:48:25.268 INFO [stderr] | Dec 17 11:48:25.268 INFO [stderr] 217 | let mut b : RefMut>; Dec 17 11:48:25.268 INFO [stderr] | ----^ Dec 17 11:48:25.268 INFO [stderr] | | Dec 17 11:48:25.268 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.268 INFO [stderr] Dec 17 11:48:25.268 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.268 INFO [stderr] --> src/lib.rs:218:13 Dec 17 11:48:25.268 INFO [stderr] | Dec 17 11:48:25.268 INFO [stderr] 218 | let mut c : * mut T; Dec 17 11:48:25.268 INFO [stderr] | ----^ Dec 17 11:48:25.268 INFO [stderr] | | Dec 17 11:48:25.268 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.268 INFO [stderr] warning: variable does not need to be mutable Dec 17 11:48:25.268 INFO [stderr] --> src/lib.rs:218:13 Dec 17 11:48:25.268 INFO [stderr] | Dec 17 11:48:25.268 INFO [stderr] 218 | let mut c : * mut T; Dec 17 11:48:25.268 INFO [stderr] | ----^ Dec 17 11:48:25.268 INFO [stderr] | | Dec 17 11:48:25.268 INFO [stderr] | help: remove this `mut` Dec 17 11:48:25.268 INFO [stderr] Dec 17 11:48:25.268 INFO [stderr] Dec 17 11:48:25.268 INFO [stderr] warning: crate `LinkedList` should have a snake case name such as `linked_list` Dec 17 11:48:25.268 INFO [stderr] warning: crate `LinkedList` should have a snake case name such as `linked_list` Dec 17 11:48:25.268 INFO [stderr] | Dec 17 11:48:25.268 INFO [stderr] | Dec 17 11:48:25.268 INFO [stderr] = note: #[warn(non_snake_case)] on by default Dec 17 11:48:25.268 INFO [stderr] = note: #[warn(non_snake_case)] on by default Dec 17 11:48:25.268 INFO [stderr] Dec 17 11:48:25.268 INFO [stderr] Dec 17 11:48:25.269 INFO [stderr] warning: structure field `phantomData` should have a snake case name such as `phantom_data` Dec 17 11:48:25.269 INFO [stderr] --> src/lib.rs:17:5 Dec 17 11:48:25.269 INFO [stderr] | Dec 17 11:48:25.269 INFO [stderr] 17 | phantomData : PhantomData<&'a T> Dec 17 11:48:25.269 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 11:48:25.269 INFO [stderr] Dec 17 11:48:25.269 INFO [stderr] warning: method `getSize` should have a snake case name such as `get_size` Dec 17 11:48:25.269 INFO [stderr] --> src/lib.rs:76:5 Dec 17 11:48:25.269 INFO [stderr] | Dec 17 11:48:25.269 INFO [stderr] 76 | / pub fn getSize(&self) -> u32 { Dec 17 11:48:25.269 INFO [stderr] 77 | | self.size Dec 17 11:48:25.269 INFO [stderr] 78 | | } Dec 17 11:48:25.269 INFO [stderr] | |_____^ Dec 17 11:48:25.269 INFO [stderr] Dec 17 11:48:25.269 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 17 11:48:25.269 INFO [stderr] --> src/lib.rs:188:13 Dec 17 11:48:25.269 INFO [stderr] | Dec 17 11:48:25.269 INFO [stderr] 188 | write!(f, "[ "); Dec 17 11:48:25.269 INFO [stderr] | ^^^^^^^^^^^^^^^^ Dec 17 11:48:25.269 INFO [stderr] | Dec 17 11:48:25.269 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 17 11:48:25.269 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 17 11:48:25.269 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) Dec 17 11:48:25.269 INFO [stderr] Dec 17 11:48:25.269 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 17 11:48:25.269 INFO [stderr] --> src/lib.rs:194:29 Dec 17 11:48:25.269 INFO [stderr] | Dec 17 11:48:25.269 INFO [stderr] 194 | write!(f, "{}", *b); Dec 17 11:48:25.269 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^ Dec 17 11:48:25.269 INFO [stderr] | Dec 17 11:48:25.270 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 17 11:48:25.270 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) Dec 17 11:48:25.270 INFO [stderr] Dec 17 11:48:25.270 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 17 11:48:25.270 INFO [stderr] --> src/lib.rs:196:29 Dec 17 11:48:25.270 INFO [stderr] | Dec 17 11:48:25.270 INFO [stderr] 196 | write!(f, "{},", *b); Dec 17 11:48:25.270 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 17 11:48:25.270 INFO [stderr] | Dec 17 11:48:25.270 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 17 11:48:25.270 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) Dec 17 11:48:25.270 INFO [stderr] Dec 17 11:48:25.270 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 17 11:48:25.270 INFO [stderr] --> src/lib.rs:201:25 Dec 17 11:48:25.270 INFO [stderr] | Dec 17 11:48:25.270 INFO [stderr] 201 | write!(f, " ]"); Dec 17 11:48:25.270 INFO [stderr] | ^^^^^^^^^^^^^^^^ Dec 17 11:48:25.270 INFO [stderr] | Dec 17 11:48:25.270 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 17 11:48:25.271 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) Dec 17 11:48:25.271 INFO [stderr] Dec 17 11:48:25.271 INFO [stderr] warning: structure field `phantomData` should have a snake case name such as `phantom_data` Dec 17 11:48:25.271 INFO [stderr] --> src/lib.rs:17:5 Dec 17 11:48:25.271 INFO [stderr] | Dec 17 11:48:25.271 INFO [stderr] 17 | phantomData : PhantomData<&'a T> Dec 17 11:48:25.271 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 11:48:25.271 INFO [stderr] Dec 17 11:48:25.271 INFO [stderr] warning: method `getSize` should have a snake case name such as `get_size` Dec 17 11:48:25.271 INFO [stderr] --> src/lib.rs:76:5 Dec 17 11:48:25.271 INFO [stderr] | Dec 17 11:48:25.271 INFO [stderr] 76 | / pub fn getSize(&self) -> u32 { Dec 17 11:48:25.271 INFO [stderr] 77 | | self.size Dec 17 11:48:25.271 INFO [stderr] 78 | | } Dec 17 11:48:25.271 INFO [stderr] | |_____^ Dec 17 11:48:25.271 INFO [stderr] Dec 17 11:48:25.271 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 17 11:48:25.271 INFO [stderr] --> src/lib.rs:188:13 Dec 17 11:48:25.271 INFO [stderr] | Dec 17 11:48:25.271 INFO [stderr] 188 | write!(f, "[ "); Dec 17 11:48:25.271 INFO [stderr] | ^^^^^^^^^^^^^^^^ Dec 17 11:48:25.271 INFO [stderr] | Dec 17 11:48:25.271 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 17 11:48:25.271 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 17 11:48:25.272 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) Dec 17 11:48:25.272 INFO [stderr] Dec 17 11:48:25.272 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 17 11:48:25.272 INFO [stderr] --> src/lib.rs:194:29 Dec 17 11:48:25.272 INFO [stderr] | Dec 17 11:48:25.272 INFO [stderr] 194 | write!(f, "{}", *b); Dec 17 11:48:25.272 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^ Dec 17 11:48:25.272 INFO [stderr] | Dec 17 11:48:25.272 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 17 11:48:25.272 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) Dec 17 11:48:25.272 INFO [stderr] Dec 17 11:48:25.272 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 17 11:48:25.272 INFO [stderr] --> src/lib.rs:196:29 Dec 17 11:48:25.272 INFO [stderr] | Dec 17 11:48:25.272 INFO [stderr] 196 | write!(f, "{},", *b); Dec 17 11:48:25.272 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Dec 17 11:48:25.272 INFO [stderr] | Dec 17 11:48:25.272 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 17 11:48:25.272 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) Dec 17 11:48:25.272 INFO [stderr] Dec 17 11:48:25.272 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 17 11:48:25.272 INFO [stderr] --> src/lib.rs:201:25 Dec 17 11:48:25.272 INFO [stderr] | Dec 17 11:48:25.272 INFO [stderr] 201 | write!(f, " ]"); Dec 17 11:48:25.272 INFO [stderr] | ^^^^^^^^^^^^^^^^ Dec 17 11:48:25.272 INFO [stderr] | Dec 17 11:48:25.272 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 17 11:48:25.272 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) Dec 17 11:48:25.272 INFO [stderr] Dec 17 11:48:25.386 INFO [stderr] warning: function is never used: `test2` Dec 17 11:48:25.386 INFO [stderr] --> src/main.rs:68:1 Dec 17 11:48:25.386 INFO [stderr] | Dec 17 11:48:25.386 INFO [stderr] 68 | fn test2() Dec 17 11:48:25.386 INFO [stderr] | ^^^^^^^^^^ Dec 17 11:48:25.386 INFO [stderr] | Dec 17 11:48:25.386 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 17 11:48:25.386 INFO [stderr] Dec 17 11:48:25.386 INFO [stderr] warning: function is never used: `test3` Dec 17 11:48:25.386 INFO [stderr] --> src/main.rs:75:1 Dec 17 11:48:25.386 INFO [stderr] | Dec 17 11:48:25.386 INFO [stderr] 75 | fn test3() Dec 17 11:48:25.386 INFO [stderr] | ^^^^^^^^^^ Dec 17 11:48:25.386 INFO [stderr] Dec 17 11:48:25.387 INFO [stderr] warning: crate `LinkedList` should have a snake case name such as `linked_list` Dec 17 11:48:25.387 INFO [stderr] | Dec 17 11:48:25.387 INFO [stderr] = note: #[warn(non_snake_case)] on by default Dec 17 11:48:25.387 INFO [stderr] Dec 17 11:48:25.429 INFO [stderr] warning: function is never used: `test2` Dec 17 11:48:25.429 INFO [stderr] --> src/main.rs:68:1 Dec 17 11:48:25.429 INFO [stderr] | Dec 17 11:48:25.429 INFO [stderr] 68 | fn test2() Dec 17 11:48:25.429 INFO [stderr] | ^^^^^^^^^^ Dec 17 11:48:25.429 INFO [stderr] | Dec 17 11:48:25.429 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 17 11:48:25.429 INFO [stderr] Dec 17 11:48:25.429 INFO [stderr] warning: function is never used: `test3` Dec 17 11:48:25.429 INFO [stderr] --> src/main.rs:75:1 Dec 17 11:48:25.429 INFO [stderr] | Dec 17 11:48:25.429 INFO [stderr] 75 | fn test3() Dec 17 11:48:25.429 INFO [stderr] | ^^^^^^^^^^ Dec 17 11:48:25.429 INFO [stderr] Dec 17 11:48:25.429 INFO [stderr] warning: crate `LinkedList` should have a snake case name such as `linked_list` Dec 17 11:48:25.429 INFO [stderr] | Dec 17 11:48:25.429 INFO [stderr] = note: #[warn(non_snake_case)] on by default Dec 17 11:48:25.429 INFO [stderr] Dec 17 11:48:25.440 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.34s Dec 17 11:48:25.677 INFO running `"docker" "inspect" "78d80a43be8ced9d7aa0f706c7a1cc04b94fd6811b22395a86e5c48bdd762b24"` Dec 17 11:48:25.786 INFO running `"docker" "rm" "-f" "78d80a43be8ced9d7aa0f706c7a1cc04b94fd6811b22395a86e5c48bdd762b24"` Dec 17 11:48:25.901 INFO [stdout] 78d80a43be8ced9d7aa0f706c7a1cc04b94fd6811b22395a86e5c48bdd762b24