[INFO] cloning repository https://github.com/zhanlanlan/hello_rust [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhanlanlan/hello_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhanlanlan%2Fhello_rust"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhanlanlan%2Fhello_rust'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4c249263b1b91bfb05ff22d3f7787b93b0a8bb97 [INFO] testing zhanlanlan/hello_rust against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhanlanlan%2Fhello_rust" "/workspace/builds/worker-0/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zhanlanlan/hello_rust on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/zhanlanlan/hello_rust [INFO] finished tweaking git repo https://github.com/zhanlanlan/hello_rust [INFO] tweaked toml for git repo https://github.com/zhanlanlan/hello_rust written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/zhanlanlan/hello_rust already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded toolshed v0.8.1 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 5b28186b18607a1d97b6c4b97d6e300f7d3d8e854c021fb136928e34a491cd4e [INFO] running `"docker" "start" "-a" "5b28186b18607a1d97b6c4b97d6e300f7d3d8e854c021fb136928e34a491cd4e"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling syn v1.0.13 [INFO] [stderr] Compiling futures-core v0.3.4 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling futures-sink v0.3.4 [INFO] [stderr] Compiling smallvec v1.2.0 [INFO] [stderr] Compiling proc-macro-nested v0.1.4 [INFO] [stderr] Compiling proc-macro-hack v0.5.14 [INFO] [stderr] Compiling arc-swap v0.4.4 [INFO] [stderr] Compiling futures-io v0.3.4 [INFO] [stderr] Compiling futures-task v0.3.4 [INFO] [stderr] Compiling pin-project-lite v0.1.2 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Compiling failure_derive v0.1.7 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling match_cfg v0.1.0 [INFO] [stderr] Compiling regex-syntax v0.6.17 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.17 [INFO] [stderr] Compiling adler32 v1.0.4 [INFO] [stderr] Compiling dtoa v0.4.5 [INFO] [stderr] Compiling rayon-core v1.6.0 [INFO] [stderr] Compiling mime v0.3.16 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.17 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling termcolor v1.1.0 [INFO] [stderr] Compiling typed-arena v1.6.1 [INFO] [stderr] Compiling dotenv v0.15.0 [INFO] [stderr] Compiling lock_api v0.3.1 [INFO] [stderr] Compiling bytestring v0.1.4 [INFO] [stderr] Compiling backtrace-sys v0.1.34 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling brotli-sys v0.3.2 [INFO] [stderr] Compiling tokio-sync v0.1.7 [INFO] [stderr] Compiling futures-channel v0.3.4 [INFO] [stderr] Compiling lru-cache v0.1.2 [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Compiling miniz_oxide v0.3.6 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.17 [INFO] [stderr] Compiling unicode-normalization v0.1.12 [INFO] [stderr] Compiling tokio-executor v0.1.8 [INFO] [stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling walkdir v2.3.1 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.17 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling num_cpus v1.12.0 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling signal-hook-registry v1.2.0 [INFO] [stderr] Compiling parking_lot_core v0.7.0 [INFO] [stderr] Compiling getrandom v0.1.12 [INFO] [stderr] Compiling hostname v0.3.1 [INFO] [stderr] Compiling socket2 v0.3.11 [INFO] [stderr] Compiling time v0.1.42 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling filetime v0.2.8 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling want v0.2.0 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling hyper v0.12.35 [INFO] [stderr] Compiling fxhash v0.2.1 [INFO] [stderr] Compiling rustc-hash v1.0.1 [INFO] [stderr] Compiling aho-corasick v0.7.10 [INFO] [stderr] Compiling tokio-current-thread v0.1.6 [INFO] [stderr] Compiling tokio-timer v0.2.11 [INFO] [stderr] Compiling threadpool v1.7.1 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.17 [INFO] [stderr] Compiling resolv-conf v0.6.3 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling mio v0.6.21 [INFO] [stderr] Compiling parking_lot v0.10.0 [INFO] [stderr] Compiling flate2 v1.0.14 [INFO] [stderr] Compiling inotify v0.7.0 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling toolshed v0.8.1 [INFO] [stderr] Compiling idna v0.2.0 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling tokio-io v0.1.12 [INFO] [stderr] Compiling http v0.1.19 [INFO] [stderr] Compiling string v0.2.1 [INFO] [stderr] Compiling tokio-buf v0.1.1 [INFO] [stderr] Compiling backtrace v0.3.45 [INFO] [stderr] Compiling rand v0.7.2 [INFO] [stderr] Compiling crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling url v2.1.1 [INFO] [stderr] Compiling regex v1.3.5 [INFO] [stderr] Compiling tokio-reactor v0.1.10 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling notify v4.0.15 [INFO] [stderr] Compiling tokio-threadpool v0.1.16 [INFO] [stderr] Compiling tokio-tcp v0.1.3 [INFO] [stderr] Compiling chrono v0.4.11 [INFO] [stderr] Compiling tokio v0.1.22 [INFO] [stderr] Compiling rayon v1.2.0 [INFO] [stderr] Compiling h2 v0.1.26 [INFO] [stderr] Compiling http-body v0.1.0 [INFO] [stderr] Compiling futures-executor-preview v0.3.0-alpha.17 [INFO] [stderr] Compiling brotli2 v0.3.2 [INFO] [stderr] Compiling env_logger v0.7.1 [INFO] [stderr] Compiling futures-preview v0.3.0-alpha.17 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Compiling tokio-macros v0.2.1 [INFO] [stderr] Compiling pin-project-internal v0.4.8 [INFO] [stderr] Compiling derive_more v0.99.3 [INFO] [stderr] Compiling actix-macros v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.105 [INFO] [stderr] Compiling async-trait v0.1.26 [INFO] [stderr] Compiling enum-as-inner v0.3.2 [INFO] [stderr] Compiling actix-web-codegen v0.2.1 [INFO] [stderr] Compiling tokio v0.2.6 [INFO] [stderr] Compiling failure v0.1.7 [INFO] [stderr] Compiling futures-util v0.3.4 [INFO] [stderr] Compiling pin-project v0.4.8 [INFO] [stderr] Compiling actix-threadpool v0.3.1 [INFO] [stderr] Compiling futures-executor v0.3.4 [INFO] [stderr] Compiling actix-service v1.0.5 [INFO] [stderr] Compiling futures v0.3.4 [INFO] [stderr] Compiling tokio-util v0.2.0 [INFO] [stderr] Compiling actix-rt v1.0.0 [INFO] [stderr] Compiling trust-dns-proto v0.18.0-alpha.2 [INFO] [stderr] Compiling actix-codec v0.2.0 [INFO] [stderr] Compiling h2 v0.2.2 [INFO] [stderr] Compiling actix-utils v1.0.6 [INFO] [stderr] Compiling serde v1.0.105 [INFO] [stderr] Compiling actix-server v1.0.2 [INFO] [stderr] Compiling actix-tls v1.0.0 [INFO] [stderr] Compiling trust-dns-resolver v0.18.0-alpha.2 [INFO] [stderr] Compiling actix-testing v1.0.0 [INFO] [stderr] Compiling actix-connect v1.0.2 [INFO] [stderr] Compiling serde_json v1.0.48 [INFO] [stderr] Compiling serde_urlencoded v0.6.1 [INFO] [stderr] Compiling actix-router v0.2.4 [INFO] [stderr] Compiling actix-http v1.0.1 [INFO] [stderr] Compiling awc v1.0.1 [INFO] [stderr] Compiling actix-web v2.0.0 [INFO] [stderr] Compiling hello_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `rand::RngCore` [INFO] [stderr] --> src/lib/search_tree.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use rand::RngCore; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Eq`, `Ord` [INFO] [stderr] --> src/lib/search_tree.rs:8:16 [INFO] [stderr] | [INFO] [stderr] 8 | use std::cmp::{Eq, Ord, PartialEq, PartialOrd}; [INFO] [stderr] | ^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/lib/search_tree.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/lib/sorts.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `chrono::prelude::*` [INFO] [stderr] --> src/lib/syncer.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use chrono::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt::Display` [INFO] [stderr] --> src/lib/syncer.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::fmt::Display; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/lib/search_tree.rs:85:25 [INFO] [stderr] | [INFO] [stderr] 85 | fn delete(mut self, word: T) -> bool { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib/search_tree.rs:85:15 [INFO] [stderr] | [INFO] [stderr] 85 | fn delete(mut self, word: T) -> bool { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib/sorts.rs:27:15 [INFO] [stderr] | [INFO] [stderr] 27 | fn quick_sort(mut nums: Vec) -> Vec { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Tree` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Tree<'a> { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `item_check` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:11:4 [INFO] [stderr] | [INFO] [stderr] 11 | fn item_check(tree: &Tree) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `bottom_up_tree` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:19:4 [INFO] [stderr] | [INFO] [stderr] 19 | fn bottom_up_tree<'r>(arena: &'r Arena>, depth: i32) -> &'r Tree<'r> { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `inner` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:29:4 [INFO] [stderr] | [INFO] [stderr] 29 | fn inner(depth: i32, iterations: i32) -> String { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:41:8 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/lib/sorts.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `bubble_sort` [INFO] [stderr] --> src/lib/sorts.rs:5:4 [INFO] [stderr] | [INFO] [stderr] 5 | fn bubble_sort(mut nums: Vec) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `insert_sort` [INFO] [stderr] --> src/lib/sorts.rs:16:4 [INFO] [stderr] | [INFO] [stderr] 16 | fn insert_sort(mut nums: Vec) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `quick_sort` [INFO] [stderr] --> src/lib/sorts.rs:27:4 [INFO] [stderr] | [INFO] [stderr] 27 | fn quick_sort(mut nums: Vec) -> Vec { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/lib/syncer.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `match_enent` [INFO] [stderr] --> src/lib/syncer.rs:23:4 [INFO] [stderr] | [INFO] [stderr] 23 | fn match_enent(event: DebouncedEvent) { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 20 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3m 44s [INFO] running `"docker" "inspect" "5b28186b18607a1d97b6c4b97d6e300f7d3d8e854c021fb136928e34a491cd4e"` [INFO] running `"docker" "rm" "-f" "5b28186b18607a1d97b6c4b97d6e300f7d3d8e854c021fb136928e34a491cd4e"` [INFO] [stdout] 5b28186b18607a1d97b6c4b97d6e300f7d3d8e854c021fb136928e34a491cd4e [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 9fdf12e6b060e8cd82addee81b51c924fad30f9e5cabecff5ce9136035a291d3 [INFO] running `"docker" "start" "-a" "9fdf12e6b060e8cd82addee81b51c924fad30f9e5cabecff5ce9136035a291d3"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling hello_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `rand::RngCore` [INFO] [stderr] --> src/lib/search_tree.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use rand::RngCore; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Eq`, `Ord` [INFO] [stderr] --> src/lib/search_tree.rs:8:16 [INFO] [stderr] | [INFO] [stderr] 8 | use std::cmp::{Eq, Ord, PartialEq, PartialOrd}; [INFO] [stderr] | ^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/lib/search_tree.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `chrono::prelude::*` [INFO] [stderr] --> src/lib/syncer.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use chrono::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt::Display` [INFO] [stderr] --> src/lib/syncer.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::fmt::Display; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/lib/search_tree.rs:85:25 [INFO] [stderr] | [INFO] [stderr] 85 | fn delete(mut self, word: T) -> bool { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib/search_tree.rs:85:15 [INFO] [stderr] | [INFO] [stderr] 85 | fn delete(mut self, word: T) -> bool { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib/sorts.rs:27:15 [INFO] [stderr] | [INFO] [stderr] 27 | fn quick_sort(mut nums: Vec) -> Vec { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Tree` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Tree<'a> { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `item_check` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:11:4 [INFO] [stderr] | [INFO] [stderr] 11 | fn item_check(tree: &Tree) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `bottom_up_tree` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:19:4 [INFO] [stderr] | [INFO] [stderr] 19 | fn bottom_up_tree<'r>(arena: &'r Arena>, depth: i32) -> &'r Tree<'r> { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `inner` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:29:4 [INFO] [stderr] | [INFO] [stderr] 29 | fn inner(depth: i32, iterations: i32) -> String { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:41:8 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/lib/sorts.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/lib/syncer.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `match_enent` [INFO] [stderr] --> src/lib/syncer.rs:23:4 [INFO] [stderr] | [INFO] [stderr] 23 | fn match_enent(event: DebouncedEvent) { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 16 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.89s [INFO] running `"docker" "inspect" "9fdf12e6b060e8cd82addee81b51c924fad30f9e5cabecff5ce9136035a291d3"` [INFO] running `"docker" "rm" "-f" "9fdf12e6b060e8cd82addee81b51c924fad30f9e5cabecff5ce9136035a291d3"` [INFO] [stdout] 9fdf12e6b060e8cd82addee81b51c924fad30f9e5cabecff5ce9136035a291d3 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 63686d03fcdf61683bae86666da650b47b6b1fca9c104b2831fa0f107b94fb00 [INFO] running `"docker" "start" "-a" "63686d03fcdf61683bae86666da650b47b6b1fca9c104b2831fa0f107b94fb00"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `rand::RngCore` [INFO] [stderr] --> src/lib/search_tree.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use rand::RngCore; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Eq`, `Ord` [INFO] [stderr] --> src/lib/search_tree.rs:8:16 [INFO] [stderr] | [INFO] [stderr] 8 | use std::cmp::{Eq, Ord, PartialEq, PartialOrd}; [INFO] [stderr] | ^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/lib/search_tree.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `chrono::prelude::*` [INFO] [stderr] --> src/lib/syncer.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use chrono::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt::Display` [INFO] [stderr] --> src/lib/syncer.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::fmt::Display; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/lib/search_tree.rs:85:25 [INFO] [stderr] | [INFO] [stderr] 85 | fn delete(mut self, word: T) -> bool { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib/search_tree.rs:85:15 [INFO] [stderr] | [INFO] [stderr] 85 | fn delete(mut self, word: T) -> bool { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib/sorts.rs:27:15 [INFO] [stderr] | [INFO] [stderr] 27 | fn quick_sort(mut nums: Vec) -> Vec { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Tree` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Tree<'a> { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `item_check` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:11:4 [INFO] [stderr] | [INFO] [stderr] 11 | fn item_check(tree: &Tree) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `bottom_up_tree` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:19:4 [INFO] [stderr] | [INFO] [stderr] 19 | fn bottom_up_tree<'r>(arena: &'r Arena>, depth: i32) -> &'r Tree<'r> { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `inner` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:29:4 [INFO] [stderr] | [INFO] [stderr] 29 | fn inner(depth: i32, iterations: i32) -> String { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/lib/binary_tree_rust.rs:41:8 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/lib/sorts.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/lib/syncer.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `match_enent` [INFO] [stderr] --> src/lib/syncer.rs:23:4 [INFO] [stderr] | [INFO] [stderr] 23 | fn match_enent(event: DebouncedEvent) { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 16 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.31s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/hello_rust-32b79b357d90bd52 [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test lib::sorts::test::test_quick_sort ... ok [INFO] [stdout] test lib::sorts::test::test_bubble_sort ... ok [INFO] [stdout] test lib::sorts::test::test_insert_sort ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "63686d03fcdf61683bae86666da650b47b6b1fca9c104b2831fa0f107b94fb00"` [INFO] running `"docker" "rm" "-f" "63686d03fcdf61683bae86666da650b47b6b1fca9c104b2831fa0f107b94fb00"` [INFO] [stdout] 63686d03fcdf61683bae86666da650b47b6b1fca9c104b2831fa0f107b94fb00