[INFO] cloning repository https://github.com/euclidr/something-about-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/euclidr/something-about-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuclidr%2Fsomething-about-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuclidr%2Fsomething-about-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 607f5796c1cc0c96203a3950ddb2835a6fce24a3 [INFO] checking euclidr/something-about-rust against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuclidr%2Fsomething-about-rust" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/euclidr/something-about-rust on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/euclidr/something-about-rust [INFO] finished tweaking git repo https://github.com/euclidr/something-about-rust [INFO] tweaked toml for git repo https://github.com/euclidr/something-about-rust written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/euclidr/something-about-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: /workspace/builds/worker-14/source/Cargo.toml: unused manifest key: examples [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f624b2bf98d41496db5d7bd447da5beea177d0c10569e681887693d3a32242dc [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "f624b2bf98d41496db5d7bd447da5beea177d0c10569e681887693d3a32242dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f624b2bf98d41496db5d7bd447da5beea177d0c10569e681887693d3a32242dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f624b2bf98d41496db5d7bd447da5beea177d0c10569e681887693d3a32242dc", kill_on_drop: false }` [INFO] [stdout] f624b2bf98d41496db5d7bd447da5beea177d0c10569e681887693d3a32242dc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4c3351365f237dcfab037ed017631c65dcab1930316df296a001a3d14b98b668 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "4c3351365f237dcfab037ed017631c65dcab1930316df296a001a3d14b98b668", kill_on_drop: false }` [INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: unused manifest key: examples [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Checking futures v0.1.27 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Compiling pkg-config v0.3.14 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Compiling httparse v1.3.3 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Checking try-lock v0.2.2 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling syn v0.15.35 [INFO] [stderr] Compiling native-tls v0.2.3 [INFO] [stderr] Checking indexmap v1.0.2 [INFO] [stderr] Checking openssl-probe v0.1.2 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking radix-tree v0.1.0 (/opt/rustwide/workdir/radix-tree) [INFO] [stderr] Checking dynimpl v0.1.0 (/opt/rustwide/workdir/dynimpl) [INFO] [stderr] Checking rfeatures v0.1.0 (/opt/rustwide/workdir/rfeatures) [INFO] [stdout] warning: field is never read: `kind` [INFO] [stdout] --> radix-tree/src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | kind: NodeKind, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking tokio-trace-core v0.2.0 [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking unreachable v0.1.1 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stdout] warning: variant is never constructed: `Param` [INFO] [stdout] --> radix-tree/src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | Param, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `CatchAll` [INFO] [stdout] --> radix-tree/src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | CatchAll, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `kind` [INFO] [stdout] --> radix-tree/src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | kind: NodeKind, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `name` [INFO] [stdout] --> radix-tree/src/lib.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | name: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `data` [INFO] [stdout] --> radix-tree/src/lib.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | data: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `normal_children` [INFO] [stdout] --> radix-tree/src/lib.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | normal_children: Vec>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `param_child` [INFO] [stdout] --> radix-tree/src/lib.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | param_child: Box>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `catch_all_child` [INFO] [stdout] --> radix-tree/src/lib.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | catch_all_child: Box>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new_normal` [INFO] [stdout] --> radix-tree/src/lib.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | fn new_normal(segment: &str) -> Node { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new_param` [INFO] [stdout] --> radix-tree/src/lib.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | fn new_param(segment: &str) -> Node { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new_cache_all` [INFO] [stdout] --> radix-tree/src/lib.rs:54:8 [INFO] [stdout] | [INFO] [stdout] 54 | fn new_cache_all(segment: &str) -> Node { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `child_index` [INFO] [stdout] --> radix-tree/src/lib.rs:66:8 [INFO] [stdout] | [INFO] [stdout] 66 | fn child_index(&self, segment: &str) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `will_conflit` [INFO] [stdout] --> radix-tree/src/lib.rs:76:8 [INFO] [stdout] | [INFO] [stdout] 76 | fn will_conflit(&self, segment: &str) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_segment` [INFO] [stdout] --> radix-tree/src/lib.rs:102:8 [INFO] [stdout] | [INFO] [stdout] 102 | fn add_segment(&mut self, segment: &str) -> Result<&mut Node, String> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_data` [INFO] [stdout] --> radix-tree/src/lib.rs:141:8 [INFO] [stdout] | [INFO] [stdout] 141 | fn set_data(&mut self, data: T) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `root` [INFO] [stdout] --> radix-tree/src/lib.rs:153:5 [INFO] [stdout] | [INFO] [stdout] 153 | root: Node, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add` [INFO] [stdout] --> radix-tree/src/lib.rs:165:12 [INFO] [stdout] | [INFO] [stdout] 165 | pub fn add(&mut self, path: &str, data: T) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `recognize` [INFO] [stdout] --> radix-tree/src/lib.rs:195:12 [INFO] [stdout] | [INFO] [stdout] 195 | pub fn recognize<'a>(&'a self, path: &str) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking tendril v0.3.1 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking num_cpus v1.10.0 [INFO] [stderr] Checking getrandom v0.1.11 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Checking debug_unreachable v0.1.1 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling openssl-sys v0.9.47 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking rand_core v0.5.0 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking tokio-executor v0.1.7 [INFO] [stderr] Checking tokio-sync v0.1.5 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking want v0.0.6 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking tokio-timer v0.2.11 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking rand v0.7.0 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking http v0.1.17 [INFO] [stderr] Checking tokio-buf v0.1.1 [INFO] [stderr] Compiling openssl v0.10.23 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Checking tokio-threadpool v0.1.14 [INFO] [stderr] Compiling string_cache_codegen v0.4.2 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking skiplist v0.1.0 (/opt/rustwide/workdir/skiplist) [INFO] [stderr] Checking something-about-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: patterns aren't allowed in functions without bodies [INFO] [stdout] --> examples/impl_trait_mut_param.rs:10:11 [INFO] [stdout] | [INFO] [stdout] 10 | fn f1(mut a: String); [INFO] [stdout] | ^^^^^ help: remove `mut` from the parameter: `a` [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(patterns_in_fns_without_body)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #35203 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Index` [INFO] [stdout] --> skiplist/src/skip.rs:4:24 [INFO] [stdout] | [INFO] [stdout] 4 | use core::ops::{Bound, Index, RangeBounds}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `something-about-rust` [INFO] [stdout] warning: unused import: `core::marker::PhantomData` [INFO] [stdout] --> skiplist/src/skip.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use core::marker::PhantomData; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused import: `Index` [INFO] [stdout] --> skiplist/src/skip.rs:4:24 [INFO] [stdout] | [INFO] [stdout] 4 | use core::ops::{Bound, Index, RangeBounds}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::marker::PhantomData` [INFO] [stdout] --> skiplist/src/skip.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use core::marker::PhantomData; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> skiplist/src/skip.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | fn new(levels: usize, k: K, v: V) -> Node { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> skiplist/src/skip.rs:132:12 [INFO] [stdout] | [INFO] [stdout] 132 | pub fn new() -> SkipList { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pop` [INFO] [stdout] --> skiplist/src/skip.rs:145:8 [INFO] [stdout] | [INFO] [stdout] 145 | fn pop(&mut self) -> Option<(K, V)> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `insert` [INFO] [stdout] --> skiplist/src/skip.rs:462:12 [INFO] [stdout] | [INFO] [stdout] 462 | pub fn insert(&mut self, k: K, v: V) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter` [INFO] [stdout] --> skiplist/src/skip.rs:712:12 [INFO] [stdout] | [INFO] [stdout] 712 | pub fn iter<'a>(&'a self) -> Iter<'a, K, V> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter_mut` [INFO] [stdout] --> skiplist/src/skip.rs:718:12 [INFO] [stdout] | [INFO] [stdout] 718 | pub fn iter_mut<'a>(&'a mut self) -> IterMut<'a, K, V> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `into_iter` [INFO] [stdout] --> skiplist/src/skip.rs:724:12 [INFO] [stdout] | [INFO] [stdout] 724 | pub fn into_iter(self) -> IntoIter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pop` [INFO] [stdout] --> skiplist/src/skip.rs:145:8 [INFO] [stdout] | [INFO] [stdout] 145 | fn pop(&mut self) -> Option<(K, V)> { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter_mut` [INFO] [stdout] --> skiplist/src/skip.rs:718:12 [INFO] [stdout] | [INFO] [stdout] 718 | pub fn iter_mut<'a>(&'a mut self) -> IterMut<'a, K, V> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `into_iter` [INFO] [stdout] --> skiplist/src/skip.rs:724:12 [INFO] [stdout] | [INFO] [stdout] 724 | pub fn into_iter(self) -> IntoIter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `skiplist_basic` [INFO] [stdout] --> skiplist/src/skip.rs:780:8 [INFO] [stdout] | [INFO] [stdout] 780 | fn skiplist_basic() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `iter` [INFO] [stdout] --> skiplist/src/skip.rs:832:8 [INFO] [stdout] | [INFO] [stdout] 832 | fn iter() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `f1` [INFO] [stdout] --> skiplist/src/lib.rs:119:12 [INFO] [stdout] | [INFO] [stdout] 119 | fn f1(&self) -> &Val { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `f2` [INFO] [stdout] --> skiplist/src/lib.rs:123:12 [INFO] [stdout] | [INFO] [stdout] 123 | fn f2(&mut self) -> &mut Val { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "4c3351365f237dcfab037ed017631c65dcab1930316df296a001a3d14b98b668", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c3351365f237dcfab037ed017631c65dcab1930316df296a001a3d14b98b668", kill_on_drop: false }` [INFO] [stdout] 4c3351365f237dcfab037ed017631c65dcab1930316df296a001a3d14b98b668