[INFO] cloning repository https://github.com/BitsAndBytesBookClub/ostep-homework-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BitsAndBytesBookClub/ostep-homework-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBitsAndBytesBookClub%2Fostep-homework-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBitsAndBytesBookClub%2Fostep-homework-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7fee5e8f41dbde7282cb1421705a3d224b66c0b6
[INFO] building BitsAndBytesBookClub/ostep-homework-rs against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBitsAndBytesBookClub%2Fostep-homework-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BitsAndBytesBookClub/ostep-homework-rs on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BitsAndBytesBookClub/ostep-homework-rs
[INFO] finished tweaking git repo https://github.com/BitsAndBytesBookClub/ostep-homework-rs
[INFO] tweaked toml for git repo https://github.com/BitsAndBytesBookClub/ostep-homework-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/BitsAndBytesBookClub/ostep-homework-rs 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b88a1a9575e5f3bf023d5b6dbcc54704db4dc96ccc89c08e2c7677585f62c55
[INFO] running `Command { std: "docker" "start" "-a" "1b88a1a9575e5f3bf023d5b6dbcc54704db4dc96ccc89c08e2c7677585f62c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b88a1a9575e5f3bf023d5b6dbcc54704db4dc96ccc89c08e2c7677585f62c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b88a1a9575e5f3bf023d5b6dbcc54704db4dc96ccc89c08e2c7677585f62c55", kill_on_drop: false }`
[INFO] [stdout] 1b88a1a9575e5f3bf023d5b6dbcc54704db4dc96ccc89c08e2c7677585f62c55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f51996e5f1100bf342fe9252d057d396040c261b602a3c6976bf8da8668551b
[INFO] running `Command { std: "docker" "start" "-a" "2f51996e5f1100bf342fe9252d057d396040c261b602a3c6976bf8da8668551b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling chapter_5 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CStr`
[INFO] [stdout]  --> src/chapter_5/homework.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::{c_void, CStr, CString};
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/chapter_5/homework.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `O_APPEND`, `O_RDONLY`, `fdopen`, `fflush`, and `tcflush`
[INFO] [stdout]  --> src/chapter_5/homework.rs:5:39
[INFO] [stdout]   |
[INFO] [stdout] 5 | ...ose, dup2, execv, fdopen, fflush, fork, getpid, O_APPEND, O_RDONLY, O_RDWR, open, pipe, read, STDOUT_FILENO, tcflush, wait, waitpid, W...
[INFO] [stdout]   |                      ^^^^^^  ^^^^^^                ^^^^^^^^  ^^^^^^^^                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/chapter_5/homework.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let wd = write(fd, (data_to_write.as_ptr() as *const c_void), 18);
[INFO] [stdout]    |                                ^                                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 42 -             let wd = write(fd, (data_to_write.as_ptr() as *const c_void), 18);
[INFO] [stdout] 42 +             let wd = write(fd, data_to_write.as_ptr() as *const c_void, 18);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/chapter_5/homework.rs:48:32
[INFO] [stdout]    |
[INFO] [stdout] 48 |             let wd = write(fd, (data_to_write.as_ptr() as *const c_void), 19);
[INFO] [stdout]    |                                ^                                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -             let wd = write(fd, (data_to_write.as_ptr() as *const c_void), 19);
[INFO] [stdout] 48 +             let wd = write(fd, data_to_write.as_ptr() as *const c_void, 19);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/chapter_5/homework.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut x = 100;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/chapter_5/homework.rs:87:18
[INFO] [stdout]      |
[INFO] [stdout] 87   |             wait(&mut WCONTINUED);
[INFO] [stdout]      |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.155/src/unix/linux_like/mod.rs:1183:1
[INFO] [stdout]      |
[INFO] [stdout] 1183 | pub const WCONTINUED: ::c_int = 0x00000008;
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/chapter_5/homework.rs:106:25
[INFO] [stdout]      |
[INFO] [stdout] 106  |             waitpid(rc, &mut WNOHANG, 0);
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.155/src/unix/linux_like/mod.rs:1179:1
[INFO] [stdout]      |
[INFO] [stdout] 1179 | pub const WNOHANG: ::c_int = 0x00000001;
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/chapter_5/homework.rs:128:18
[INFO] [stdout]      |
[INFO] [stdout] 128  |             wait(&mut WNOHANG);
[INFO] [stdout]      |                  ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.155/src/unix/linux_like/mod.rs:1179:1
[INFO] [stdout]      |
[INFO] [stdout] 1179 | pub const WNOHANG: ::c_int = 0x00000001;
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_1` is never used
[INFO] [stdout]  --> src/chapter_5/homework.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn part_1() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_2` is never used
[INFO] [stdout]   --> src/chapter_5/homework.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn part_2() {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_3` is never used
[INFO] [stdout]   --> src/chapter_5/homework.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn part_3() {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_4` is never used
[INFO] [stdout]   --> src/chapter_5/homework.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn part_4() {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_5_6` is never used
[INFO] [stdout]   --> src/chapter_5/homework.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn part_5_6() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_7` is never used
[INFO] [stdout]    --> src/chapter_5/homework.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn part_7() {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "2f51996e5f1100bf342fe9252d057d396040c261b602a3c6976bf8da8668551b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f51996e5f1100bf342fe9252d057d396040c261b602a3c6976bf8da8668551b", kill_on_drop: false }`
[INFO] [stdout] 2f51996e5f1100bf342fe9252d057d396040c261b602a3c6976bf8da8668551b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48954eb8f162e915fd4a53ca90722b9fa9b114e21ab31acfd46dd56750d9fe65
[INFO] running `Command { std: "docker" "start" "-a" "48954eb8f162e915fd4a53ca90722b9fa9b114e21ab31acfd46dd56750d9fe65", kill_on_drop: false }`
[INFO] [stderr]    Compiling chapter_5 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CStr`
[INFO] [stdout]  --> src/chapter_5/homework.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::{c_void, CStr, CString};
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/chapter_5/homework.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `O_APPEND`, `O_RDONLY`, `fdopen`, `fflush`, and `tcflush`
[INFO] [stdout]  --> src/chapter_5/homework.rs:5:39
[INFO] [stdout]   |
[INFO] [stdout] 5 | ...ose, dup2, execv, fdopen, fflush, fork, getpid, O_APPEND, O_RDONLY, O_RDWR, open, pipe, read, STDOUT_FILENO, tcflush, wait, waitpid, W...
[INFO] [stdout]   |                      ^^^^^^  ^^^^^^                ^^^^^^^^  ^^^^^^^^                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/chapter_5/homework.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let wd = write(fd, (data_to_write.as_ptr() as *const c_void), 18);
[INFO] [stdout]    |                                ^                                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 42 -             let wd = write(fd, (data_to_write.as_ptr() as *const c_void), 18);
[INFO] [stdout] 42 +             let wd = write(fd, data_to_write.as_ptr() as *const c_void, 18);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/chapter_5/homework.rs:48:32
[INFO] [stdout]    |
[INFO] [stdout] 48 |             let wd = write(fd, (data_to_write.as_ptr() as *const c_void), 19);
[INFO] [stdout]    |                                ^                                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -             let wd = write(fd, (data_to_write.as_ptr() as *const c_void), 19);
[INFO] [stdout] 48 +             let wd = write(fd, data_to_write.as_ptr() as *const c_void, 19);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/chapter_5/homework.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut x = 100;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/chapter_5/homework.rs:87:18
[INFO] [stdout]      |
[INFO] [stdout] 87   |             wait(&mut WCONTINUED);
[INFO] [stdout]      |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.155/src/unix/linux_like/mod.rs:1183:1
[INFO] [stdout]      |
[INFO] [stdout] 1183 | pub const WCONTINUED: ::c_int = 0x00000008;
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/chapter_5/homework.rs:106:25
[INFO] [stdout]      |
[INFO] [stdout] 106  |             waitpid(rc, &mut WNOHANG, 0);
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.155/src/unix/linux_like/mod.rs:1179:1
[INFO] [stdout]      |
[INFO] [stdout] 1179 | pub const WNOHANG: ::c_int = 0x00000001;
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/chapter_5/homework.rs:128:18
[INFO] [stdout]      |
[INFO] [stdout] 128  |             wait(&mut WNOHANG);
[INFO] [stdout]      |                  ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.155/src/unix/linux_like/mod.rs:1179:1
[INFO] [stdout]      |
[INFO] [stdout] 1179 | pub const WNOHANG: ::c_int = 0x00000001;
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_1` is never used
[INFO] [stdout]  --> src/chapter_5/homework.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn part_1() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_2` is never used
[INFO] [stdout]   --> src/chapter_5/homework.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn part_2() {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_3` is never used
[INFO] [stdout]   --> src/chapter_5/homework.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn part_3() {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_4` is never used
[INFO] [stdout]   --> src/chapter_5/homework.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn part_4() {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_5_6` is never used
[INFO] [stdout]   --> src/chapter_5/homework.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn part_5_6() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_7` is never used
[INFO] [stdout]    --> src/chapter_5/homework.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn part_7() {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "48954eb8f162e915fd4a53ca90722b9fa9b114e21ab31acfd46dd56750d9fe65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48954eb8f162e915fd4a53ca90722b9fa9b114e21ab31acfd46dd56750d9fe65", kill_on_drop: false }`
[INFO] [stdout] 48954eb8f162e915fd4a53ca90722b9fa9b114e21ab31acfd46dd56750d9fe65
