[INFO] cloning repository https://github.com/L1chik/functional_programming
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/L1chik/functional_programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FL1chik%2Ffunctional_programming", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FL1chik%2Ffunctional_programming'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1baea2c7c3fd88ec3f15e1f9454e5cf9caaf8b8
[INFO] checking L1chik/functional_programming against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FL1chik%2Ffunctional_programming" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/L1chik/functional_programming on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/L1chik/functional_programming
[INFO] finished tweaking git repo https://github.com/L1chik/functional_programming
[INFO] tweaked toml for git repo https://github.com/L1chik/functional_programming written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/L1chik/functional_programming already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de9ec2bed0b5cc12b47ea725c924b452f6c9647dff1e734b623b5bef4974d3c5
[INFO] running `Command { std: "docker" "start" "-a" "de9ec2bed0b5cc12b47ea725c924b452f6c9647dff1e734b623b5bef4974d3c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de9ec2bed0b5cc12b47ea725c924b452f6c9647dff1e734b623b5bef4974d3c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de9ec2bed0b5cc12b47ea725c924b452f6c9647dff1e734b623b5bef4974d3c5", kill_on_drop: false }`
[INFO] [stdout] de9ec2bed0b5cc12b47ea725c924b452f6c9647dff1e734b623b5bef4974d3c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19500c913ec9b93913bea54891d789dc18a1a61fe952499c78fe4f7538e77778
[INFO] running `Command { std: "docker" "start" "-a" "19500c913ec9b93913bea54891d789dc18a1a61fe952499c78fe4f7538e77778", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]    Compiling libusb-sys v0.2.3
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking local-waker v0.1.3
[INFO] [stderr]    Compiling zstd-safe v6.0.5+zstd.1.5.4
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking alloc-stdlib v0.2.2
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]     Checking lebe v0.5.1
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking nanorand v0.6.1
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]    Compiling rustix v0.37.11
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tiff v0.7.1
[INFO] [stderr]     Checking digest v0.10.6
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]    Compiling time-macros v0.2.8
[INFO] [stderr]     Checking bit-set v0.2.0
[INFO] [stderr]     Checking actix-service v2.0.2
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.7
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]    Compiling bytestring v1.3.0
[INFO] [stderr]     Checking brotli-decompressor v2.3.4
[INFO] [stderr]     Checking actix-utils v3.0.1
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]    Compiling zstd-sys v2.0.8+zstd.1.5.5
[INFO] [stderr]    Compiling cookie v0.16.2
[INFO] [stderr]     Checking linux-raw-sys v0.3.1
[INFO] [stderr]    Compiling regex v1.7.3
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking cpufeatures v0.2.6
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking bytemuck v1.8.0
[INFO] [stderr]    Compiling pq-sys v0.4.8
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]    Compiling diesel_table_macro_syntax v0.1.0
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking libusb v0.3.0
[INFO] [stderr]     Checking jpeg-decoder v0.2.2
[INFO] [stderr]     Checking r2d2 v0.8.10
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking brotli v3.3.4
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking base64 v0.21.0
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]     Checking language-tags v0.3.2
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking time v0.3.20
[INFO] [stderr]     Checking ahash v0.7.6
[INFO] [stderr]     Checking uuid v1.3.3
[INFO] [stderr]     Checking bitflags v2.3.1
[INFO] [stderr]     Checking template-engine v0.1.0 (/opt/rustwide/workdir/template-engine)
[INFO] [stderr]     Checking text-viewer v0.1.0 (/opt/rustwide/workdir/text-viewer)
[INFO] [stdout] warning: unused import: `std::mem::discriminant`
[INFO] [stdout]  --> template-engine/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::discriminant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::slice::SplitMut`
[INFO] [stdout]  --> template-engine/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::slice::SplitMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> text-viewer/src/advanced_viewer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> template-engine/src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> text-viewer/src/advanced_viewer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking shell v0.1.0 (/opt/rustwide/workdir/shell)
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> template-engine/src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking network v0.1.0 (/opt/rustwide/workdir/network)
[INFO] [stdout] warning: unused import: `std::arch::x86_64::CpuidResult`
[INFO] [stdout]  --> shell/src/shell.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::arch::x86_64::CpuidResult;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> shell/src/shell.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking atomics v0.1.0 (/opt/rustwide/workdir/atomics)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking reverseproxy v0.1.0 (/opt/rustwide/workdir/proxy)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::arch::x86_64::CpuidResult`
[INFO] [stdout]  --> shell/src/shell.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::arch::x86_64::CpuidResult;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> shell/src/shell.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking concurrency v0.1.0 (/opt/rustwide/workdir/concurrency)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path`
[INFO] [stdout]  --> concurrency/src/states.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::path;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> atomics/src/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let b = a.clone();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> atomics/src/main.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let a = Rc::new(123);
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> atomics/src/main.rs:219:17
[INFO] [stdout]     |
[INFO] [stdout] 219 |     if let Some(item) = list.lock().unwrap().pop() {
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> atomics/src/main.rs:232:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |     if let Some(item) = item {
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `o_call` is never used
[INFO] [stdout]   --> atomics/src/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn o_call() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `t_call` is never used
[INFO] [stdout]   --> atomics/src/main.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn t_call() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `t_call2` is never used
[INFO] [stdout]   --> atomics/src/main.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn t_call2() {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f_call` is never used
[INFO] [stdout]   --> atomics/src/main.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn f_call() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f_call2` is never used
[INFO] [stdout]   --> atomics/src/main.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn f_call2() {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f3` is never used
[INFO] [stdout]    --> atomics/src/main.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn f3(a: &i32, b: &mut i32) {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f4` is never used
[INFO] [stdout]    --> atomics/src/main.rs:121:4
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn f4() {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f5` is never used
[INFO] [stdout]    --> atomics/src/main.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn f5(a: &Cell<i32>, b: &Cell<i32>) {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f6` is never used
[INFO] [stdout]    --> atomics/src/main.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn f6(a: &Cell<Vec<i32>>) {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f7` is never used
[INFO] [stdout]    --> atomics/src/main.rs:150:4
[INFO] [stdout]     |
[INFO] [stdout] 150 | fn f7(v: &RefCell<Vec<i32>>) {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `X` is never constructed
[INFO] [stdout]    --> atomics/src/main.rs:154:8
[INFO] [stdout]     |
[INFO] [stdout] 154 | struct X {
[INFO] [stdout]     |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `p` is never read
[INFO] [stdout]    --> atomics/src/main.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 159 | struct Y {
[INFO] [stdout]     |        - field in this struct
[INFO] [stdout] 160 |     p: *mut i32,
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c` is never used
[INFO] [stdout]    --> atomics/src/main.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn c() {
[INFO] [stdout]     |    ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c2` is never used
[INFO] [stdout]    --> atomics/src/main.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 175 | fn c2() {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c3` is never used
[INFO] [stdout]    --> atomics/src/main.rs:213:4
[INFO] [stdout]     |
[INFO] [stdout] 213 | fn c3() {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c5` is never used
[INFO] [stdout]    --> atomics/src/main.rs:261:4
[INFO] [stdout]     |
[INFO] [stdout] 261 | fn c5() {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking intermediate v0.1.0 (/opt/rustwide/workdir/intermediate)
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `os_commands_example1` is never used
[INFO] [stdout]  --> intermediate/src/main.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn os_commands_example1() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!` or `::`, found `std`
[INFO] [stdout]  --> proxy/src/bin/origin.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | uаse std::fmt::format;
[INFO] [stdout]   |      ^^^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the usage of Script Group `Cyrillic` in this crate consists solely of mixed script confusables
[INFO] [stdout]  --> proxy/src/bin/origin.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | uаse std::fmt::format;
[INFO] [stdout]   | ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: the usage includes 'а' (U+0430)
[INFO] [stdout]   = note: please recheck to make sure their usages are indeed what you want
[INFO] [stdout]   = note: `#[warn(mixed_script_confusables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!` or `::`, found `std`
[INFO] [stdout]  --> proxy/src/bin/origin.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | uаse std::fmt::format;
[INFO] [stdout]   |      ^^^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path`
[INFO] [stdout]  --> concurrency/src/states.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::path;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the usage of Script Group `Cyrillic` in this crate consists solely of mixed script confusables
[INFO] [stdout]  --> proxy/src/bin/origin.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | uаse std::fmt::format;
[INFO] [stdout]   | ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: the usage includes 'а' (U+0430)
[INFO] [stdout]   = note: please recheck to make sure their usages are indeed what you want
[INFO] [stdout]   = note: `#[warn(mixed_script_confusables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reverseproxy` (bin "reverseproxy") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reverseproxy` (bin "reverseproxy" test) due to 2 previous errors; 1 warning emitted
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> atomics/src/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let b = a.clone();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> atomics/src/main.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let a = Rc::new(123);
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::discriminant`
[INFO] [stdout]  --> template-engine/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::discriminant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::slice::SplitMut`
[INFO] [stdout]  --> template-engine/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::slice::SplitMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> atomics/src/main.rs:219:17
[INFO] [stdout]     |
[INFO] [stdout] 219 |     if let Some(item) = list.lock().unwrap().pop() {
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> atomics/src/main.rs:232:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |     if let Some(item) = item {
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `o_call` is never used
[INFO] [stdout]   --> atomics/src/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn o_call() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `t_call` is never used
[INFO] [stdout]   --> atomics/src/main.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn t_call() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `t_call2` is never used
[INFO] [stdout]   --> atomics/src/main.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn t_call2() {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f_call` is never used
[INFO] [stdout]   --> atomics/src/main.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn f_call() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f_call2` is never used
[INFO] [stdout]   --> atomics/src/main.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn f_call2() {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f3` is never used
[INFO] [stdout]    --> atomics/src/main.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn f3(a: &i32, b: &mut i32) {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f4` is never used
[INFO] [stdout]    --> atomics/src/main.rs:121:4
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn f4() {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f5` is never used
[INFO] [stdout]    --> atomics/src/main.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn f5(a: &Cell<i32>, b: &Cell<i32>) {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f6` is never used
[INFO] [stdout]    --> atomics/src/main.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn f6(a: &Cell<Vec<i32>>) {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f7` is never used
[INFO] [stdout]    --> atomics/src/main.rs:150:4
[INFO] [stdout]     |
[INFO] [stdout] 150 | fn f7(v: &RefCell<Vec<i32>>) {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `X` is never constructed
[INFO] [stdout]    --> atomics/src/main.rs:154:8
[INFO] [stdout]     |
[INFO] [stdout] 154 | struct X {
[INFO] [stdout]     |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `p` is never read
[INFO] [stdout]    --> atomics/src/main.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 159 | struct Y {
[INFO] [stdout]     |        - field in this struct
[INFO] [stdout] 160 |     p: *mut i32,
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c` is never used
[INFO] [stdout]    --> atomics/src/main.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn c() {
[INFO] [stdout]     |    ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c2` is never used
[INFO] [stdout]    --> atomics/src/main.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 175 | fn c2() {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c3` is never used
[INFO] [stdout]    --> atomics/src/main.rs:213:4
[INFO] [stdout]     |
[INFO] [stdout] 213 | fn c3() {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c5` is never used
[INFO] [stdout]    --> atomics/src/main.rs:261:4
[INFO] [stdout]     |
[INFO] [stdout] 261 | fn c5() {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `os_commands_example1` is never used
[INFO] [stdout]  --> intermediate/src/main.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn os_commands_example1() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "19500c913ec9b93913bea54891d789dc18a1a61fe952499c78fe4f7538e77778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19500c913ec9b93913bea54891d789dc18a1a61fe952499c78fe4f7538e77778", kill_on_drop: false }`
[INFO] [stdout] 19500c913ec9b93913bea54891d789dc18a1a61fe952499c78fe4f7538e77778
