[INFO] cloning repository https://github.com/goby/rust-study [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/goby/rust-study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoby%2Frust-study", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoby%2Frust-study'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ed7f2d3593e24c9ea60624d3505ec7f85d7b05b2 [INFO] checking goby/rust-study against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoby%2Frust-study" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. 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Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8df4cd187135f7cf6bcc148b2d55737dab742568cd26d176a199504917b464d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8df4cd187135f7cf6bcc148b2d55737dab742568cd26d176a199504917b464d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8df4cd187135f7cf6bcc148b2d55737dab742568cd26d176a199504917b464d6", kill_on_drop: false }` [INFO] [stdout] 8df4cd187135f7cf6bcc148b2d55737dab742568cd26d176a199504917b464d6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] ddcb8714a30be17a1edd9afa61483fd6b76349ce79483991db9c52407175fa2f [INFO] running `Command { std: "docker" "start" "-a" "ddcb8714a30be17a1edd9afa61483fd6b76349ce79483991db9c52407175fa2f", kill_on_drop: false }` [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Checking libc v0.2.16 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Checking net2 v0.2.26 [INFO] [stderr] Checking rand v0.3.14 [INFO] [stderr] Compiling nix v0.6.0 [INFO] [stderr] Checking mio v0.6.0 [INFO] [stderr] Checking guessing v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> src/structs.rs:72:24 [INFO] [stdout] | [INFO] [stdout] 72 | fn has_edge(&self, &Self::Node, &Self::Node) -> bool; [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Node` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> src/structs.rs:72:37 [INFO] [stdout] | [INFO] [stdout] 72 | fn has_edge(&self, &Self::Node, &Self::Node) -> bool; [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Node` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> src/structs.rs:73:21 [INFO] [stdout] | [INFO] [stdout] 73 | fn edges(&self, &Self::Node) -> Vec; [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Node` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/traits.rs:75:25 [INFO] [stdout] | [INFO] [stdout] 75 | fn dynamic_dispatch(t: &FormatString) { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn FormatString` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/macros.rs:62:43 [INFO] [stdout] | [INFO] [stdout] 62 | fn x() { println!("x() outbound")}; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/macros.rs:115:18 [INFO] [stdout] | [INFO] [stdout] 115 | $($x);*; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/macros.rs:115:20 [INFO] [stdout] | [INFO] [stdout] 115 | $($x);*; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] ... [INFO] [stdout] 122 | m_stmt!(let haha = 3, let _ = 33); [INFO] [stdout] | ---------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `m_stmt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/concurrency.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | / macro_rules! concurrency { [INFO] [stdout] 3 | | ($start: expr, $end: expr, |$x: ident| -> $dd: block) => { [INFO] [stdout] 4 | | let handlers: Vec<_> = ($start..$end).map(|$x| { [INFO] [stdout] 5 | | thread::spawn(move || { [INFO] [stdout] ... | [INFO] [stdout] 14 | | } [INFO] [stdout] 15 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: rust-call ABI is subject to change [INFO] [stdout] --> src/closures.rs:22:20 [INFO] [stdout] | [INFO] [stdout] 22 | extern "rust-call" fn call(&self, args: Args) -> Self::Output; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #29625 for more information [INFO] [stdout] = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: rust-call ABI is subject to change [INFO] [stdout] --> src/closures.rs:26:20 [INFO] [stdout] | [INFO] [stdout] 26 | extern "rust-call" fn call(&mut self, args: Args) -> Self::Output; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #29625 for more information [INFO] [stdout] = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: rust-call ABI is subject to change [INFO] [stdout] --> src/closures.rs:32:20 [INFO] [stdout] | [INFO] [stdout] 32 | extern "rust-call" fn call(self, args: Args) -> Self::Output; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #29625 for more information [INFO] [stdout] = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> src/structs.rs:72:24 [INFO] [stdout] | [INFO] [stdout] 72 | fn has_edge(&self, &Self::Node, &Self::Node) -> bool; [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Node` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> src/structs.rs:72:37 [INFO] [stdout] | [INFO] [stdout] 72 | fn has_edge(&self, &Self::Node, &Self::Node) -> bool; [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Node` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> src/structs.rs:73:21 [INFO] [stdout] | [INFO] [stdout] 73 | fn edges(&self, &Self::Node) -> Vec; [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Node` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/structs.rs:136:38 [INFO] [stdout] | [INFO] [stdout] 136 | let obj = Box::new(g) as Box>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Graph` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/traits.rs:75:25 [INFO] [stdout] | [INFO] [stdout] 75 | fn dynamic_dispatch(t: &FormatString) { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn FormatString` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/traits.rs:150:29 [INFO] [stdout] | [INFO] [stdout] 150 | dynamic_dispatch(&x as &FormatString); [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn FormatString` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/traits.rs:151:29 [INFO] [stdout] | [INFO] [stdout] 151 | dynamic_dispatch(&y as &FormatString); [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn FormatString` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/closures.rs:10:49 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn test_return_closure(num: i32) -> Box i32> { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i32) -> i32` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/closures.rs:49:36 [INFO] [stdout] | [INFO] [stdout] 49 | fn call_with_two(closure: &Fn(i32) -> i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i32) -> i32` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/macros.rs:62:43 [INFO] [stdout] | [INFO] [stdout] 62 | fn x() { println!("x() outbound")}; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/macros.rs:115:18 [INFO] [stdout] | [INFO] [stdout] 115 | $($x);*; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/macros.rs:115:20 [INFO] [stdout] | [INFO] [stdout] 115 | $($x);*; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] ... [INFO] [stdout] 122 | m_stmt!(let haha = 3, let _ = 33); [INFO] [stdout] | ---------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `m_stmt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n1` [INFO] [stdout] --> src/structs.rs:86:24 [INFO] [stdout] | [INFO] [stdout] 86 | fn has_edge(&self, n1: &Node, n2: &Node) -> bool { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n2` [INFO] [stdout] --> src/structs.rs:86:35 [INFO] [stdout] | [INFO] [stdout] 86 | fn has_edge(&self, n1: &Node, n2: &Node) -> bool { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `node` [INFO] [stdout] --> src/structs.rs:90:21 [INFO] [stdout] | [INFO] [stdout] 90 | fn edges(&self, node: &Node) -> Vec { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_node` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `x` [INFO] [stdout] --> src/structs.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 27 | x: &'a mut i32, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `y` [INFO] [stdout] --> src/structs.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | y: &'a mut i32, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `start` [INFO] [stdout] --> src/structs.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 32 | start: Point, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `end` [INFO] [stdout] --> src/structs.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | end: Point, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `x` [INFO] [stdout] --> src/structs.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 44 | x: &'a mut i32, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `y` [INFO] [stdout] --> src/structs.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | y: &'a mut i32, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `z` [INFO] [stdout] --> src/structs.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | z: &'a mut i32, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Message` [INFO] [stdout] --> src/structs.rs:52:6 [INFO] [stdout] | [INFO] [stdout] 52 | enum Message { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `centor` [INFO] [stdout] --> src/structs.rs:100:5 [INFO] [stdout] | [INFO] [stdout] 100 | centor: Point, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `area` [INFO] [stdout] --> src/structs.rs:112:8 [INFO] [stdout] | [INFO] [stdout] 112 | fn area(&self) -> f64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `grow` [INFO] [stdout] --> src/structs.rs:116:8 [INFO] [stdout] | [INFO] [stdout] 116 | fn grow(&self, increment: f64) -> Circle { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `normal` [INFO] [stdout] --> src/traits.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn normal>(x: &T) -> i64 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `inverse` [INFO] [stdout] --> src/traits.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn inverse() -> T [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `static_dispatch` [INFO] [stdout] --> src/traits.rs:70:4 [INFO] [stdout] | [INFO] [stdout] 70 | fn static_dispatch(t: &T) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dynamic_dispatch` [INFO] [stdout] --> src/traits.rs:75:4 [INFO] [stdout] | [INFO] [stdout] 75 | fn dynamic_dispatch(t: &FormatString) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `object_safe` [INFO] [stdout] --> src/traits.rs:79:4 [INFO] [stdout] | [INFO] [stdout] 79 | fn object_safe() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trait_with_same_function` [INFO] [stdout] --> src/traits.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn trait_with_same_function() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trait_with_as_form` [INFO] [stdout] --> src/traits.rs:113:4 [INFO] [stdout] | [INFO] [stdout] 113 | fn trait_with_as_form() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_move` [INFO] [stdout] --> src/lifetimes.rs:2:4 [INFO] [stdout] | [INFO] [stdout] 2 | fn test_move() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_ownership` [INFO] [stdout] --> src/lifetimes.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn test_ownership() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_lifetime` [INFO] [stdout] --> src/lifetimes.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn test_lifetime() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_elided_lifetime` [INFO] [stdout] --> src/lifetimes.rs:61:4 [INFO] [stdout] | [INFO] [stdout] 61 | fn test_elided_lifetime() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 33 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: could not compile `guessing` due to 4 previous errors; 12 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "ddcb8714a30be17a1edd9afa61483fd6b76349ce79483991db9c52407175fa2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ddcb8714a30be17a1edd9afa61483fd6b76349ce79483991db9c52407175fa2f", kill_on_drop: false }` [INFO] [stdout] ddcb8714a30be17a1edd9afa61483fd6b76349ce79483991db9c52407175fa2f