[INFO] updating cached repository ryota-sakamoto/rust_study [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/ryota-sakamoto/rust_study [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/ryota-sakamoto/rust_study" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/ryota-sakamoto/rust_study"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/ryota-sakamoto/rust_study'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/ryota-sakamoto/rust_study" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/ryota-sakamoto/rust_study"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/ryota-sakamoto/rust_study'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 5eb4f8bec1711983c25dcc199f9e5c1cb2a2aa47 [INFO] sha for GitHub repo ryota-sakamoto/rust_study: 5eb4f8bec1711983c25dcc199f9e5c1cb2a2aa47 [INFO] validating manifest of ryota-sakamoto/rust_study on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of ryota-sakamoto/rust_study on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing ryota-sakamoto/rust_study [INFO] finished frobbing ryota-sakamoto/rust_study [INFO] frobbed toml for ryota-sakamoto/rust_study written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/ryota-sakamoto/rust_study/Cargo.toml [INFO] started frobbing ryota-sakamoto/rust_study [INFO] finished frobbing ryota-sakamoto/rust_study [INFO] frobbed toml for ryota-sakamoto/rust_study written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/ryota-sakamoto/rust_study/Cargo.toml [INFO] crate ryota-sakamoto/rust_study already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking ryota-sakamoto/rust_study against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/ryota-sakamoto/rust_study:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] d1eaecb7f49d719874b584c13ed8755e2ae5f0113472c90c777c783a6f3a67a1 [INFO] running `"docker" "start" "-a" "d1eaecb7f49d719874b584c13ed8755e2ae5f0113472c90c777c783a6f3a67a1"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking rust_test v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused macro definition [INFO] [stderr] --> src/list.rs:53:1 [INFO] [stderr] | [INFO] [stderr] 53 | / macro_rules! list { [INFO] [stderr] 54 | | ($($n: expr),*) => { [INFO] [stderr] 55 | | { [INFO] [stderr] 56 | | let mut list = List::empty_list(); [INFO] [stderr] ... | [INFO] [stderr] 74 | | }; [INFO] [stderr] 75 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_macros)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused macro definition [INFO] [stderr] --> src/list.rs:53:1 [INFO] [stderr] | [INFO] [stderr] 53 | / macro_rules! list { [INFO] [stderr] 54 | | ($($n: expr),*) => { [INFO] [stderr] 55 | | { [INFO] [stderr] 56 | | let mut list = List::empty_list(); [INFO] [stderr] ... | [INFO] [stderr] 74 | | }; [INFO] [stderr] 75 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_macros)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `call` [INFO] [stderr] --> src/module.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | pub fn call() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `List` [INFO] [stderr] --> src/list.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | pub enum List { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `empty_list` [INFO] [stderr] --> src/list.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn empty_list() -> List { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `prepend` [INFO] [stderr] --> src/list.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn prepend(self, t: T) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `head` [INFO] [stderr] --> src/list.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn head(&self) -> &T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `last` [INFO] [stderr] --> src/list.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn last(&self) -> &T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_empty` [INFO] [stderr] --> src/list.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | fn is_empty(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `tailrec` [INFO] [stderr] --> src/list.rs:87:1 [INFO] [stderr] | [INFO] [stderr] 87 | fn tailrec(list: &List) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:27:26 [INFO] [stderr] | [INFO] [stderr] 27 | &List::List {head: ref head, tail: _} => head, [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_shorthand_field_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:34:26 [INFO] [stderr] | [INFO] [stderr] 34 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `tail:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:34:42 [INFO] [stderr] | [INFO] [stderr] 34 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:90:22 [INFO] [stderr] | [INFO] [stderr] 90 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `tail:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:90:38 [INFO] [stderr] | [INFO] [stderr] 90 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: function is never used: `call` [INFO] [stderr] --> src/module.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | pub fn call() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `List` [INFO] [stderr] --> src/list.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | pub enum List { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `empty_list` [INFO] [stderr] --> src/list.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn empty_list() -> List { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `prepend` [INFO] [stderr] --> src/list.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn prepend(self, t: T) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `head` [INFO] [stderr] --> src/list.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn head(&self) -> &T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `last` [INFO] [stderr] --> src/list.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn last(&self) -> &T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_empty` [INFO] [stderr] --> src/list.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | fn is_empty(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `tailrec` [INFO] [stderr] --> src/list.rs:87:1 [INFO] [stderr] | [INFO] [stderr] 87 | fn tailrec(list: &List) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:27:26 [INFO] [stderr] | [INFO] [stderr] 27 | &List::List {head: ref head, tail: _} => head, [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_shorthand_field_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:34:26 [INFO] [stderr] | [INFO] [stderr] 34 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `tail:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:34:42 [INFO] [stderr] | [INFO] [stderr] 34 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:90:22 [INFO] [stderr] | [INFO] [stderr] 90 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `tail:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:90:38 [INFO] [stderr] | [INFO] [stderr] 90 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: unused macro definition [INFO] [stderr] --> src/list.rs:53:1 [INFO] [stderr] | [INFO] [stderr] 53 | / macro_rules! list { [INFO] [stderr] 54 | | ($($n: expr),*) => { [INFO] [stderr] 55 | | { [INFO] [stderr] 56 | | let mut list = List::empty_list(); [INFO] [stderr] ... | [INFO] [stderr] 74 | | }; [INFO] [stderr] 75 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_macros)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:78:19 [INFO] [stderr] | [INFO] [stderr] 78 | let func: Box u64> = Box::new(|a| a.pow(2)); [INFO] [stderr] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u64) -> u64` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused macro definition [INFO] [stderr] --> src/list.rs:53:1 [INFO] [stderr] | [INFO] [stderr] 53 | / macro_rules! list { [INFO] [stderr] 54 | | ($($n: expr),*) => { [INFO] [stderr] 55 | | { [INFO] [stderr] 56 | | let mut list = List::empty_list(); [INFO] [stderr] ... | [INFO] [stderr] 74 | | }; [INFO] [stderr] 75 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_macros)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:78:19 [INFO] [stderr] | [INFO] [stderr] 78 | let func: Box u64> = Box::new(|a| a.pow(2)); [INFO] [stderr] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u64) -> u64` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `head` [INFO] [stderr] --> src/list.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn head(&self) -> &T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `last` [INFO] [stderr] --> src/list.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn last(&self) -> &T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_empty` [INFO] [stderr] --> src/list.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | fn is_empty(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `tailrec` [INFO] [stderr] --> src/list.rs:87:1 [INFO] [stderr] | [INFO] [stderr] 87 | fn tailrec(list: &List) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:27:26 [INFO] [stderr] | [INFO] [stderr] 27 | &List::List {head: ref head, tail: _} => head, [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_shorthand_field_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:34:26 [INFO] [stderr] | [INFO] [stderr] 34 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `tail:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:34:42 [INFO] [stderr] | [INFO] [stderr] 34 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:90:22 [INFO] [stderr] | [INFO] [stderr] 90 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `tail:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:90:38 [INFO] [stderr] | [INFO] [stderr] 90 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: method is never used: `head` [INFO] [stderr] --> src/list.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn head(&self) -> &T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `last` [INFO] [stderr] --> src/list.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn last(&self) -> &T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_empty` [INFO] [stderr] --> src/list.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | fn is_empty(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `tailrec` [INFO] [stderr] --> src/list.rs:87:1 [INFO] [stderr] | [INFO] [stderr] 87 | fn tailrec(list: &List) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:27:26 [INFO] [stderr] | [INFO] [stderr] 27 | &List::List {head: ref head, tail: _} => head, [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_shorthand_field_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:34:26 [INFO] [stderr] | [INFO] [stderr] 34 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `tail:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:34:42 [INFO] [stderr] | [INFO] [stderr] 34 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `head:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:90:22 [INFO] [stderr] | [INFO] [stderr] 90 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] warning: the `tail:` in this pattern is redundant [INFO] [stderr] --> src/list.rs:90:38 [INFO] [stderr] | [INFO] [stderr] 90 | &List::List {head: ref head, tail: ref tail} => { [INFO] [stderr] | -----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.35s [INFO] running `"docker" "inspect" "d1eaecb7f49d719874b584c13ed8755e2ae5f0113472c90c777c783a6f3a67a1"` [INFO] running `"docker" "rm" "-f" "d1eaecb7f49d719874b584c13ed8755e2ae5f0113472c90c777c783a6f3a67a1"` [INFO] [stdout] d1eaecb7f49d719874b584c13ed8755e2ae5f0113472c90c777c783a6f3a67a1