[INFO] cloning repository https://github.com/AR-developer197/rust-in-action
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AR-developer197/rust-in-action" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAR-developer197%2Frust-in-action", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAR-developer197%2Frust-in-action'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7093d821db3f109bbd1484b0a958774e6cf093b5
[INFO] checking AR-developer197/rust-in-action against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAR-developer197%2Frust-in-action" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AR-developer197/rust-in-action
[INFO] finished tweaking git repo https://github.com/AR-developer197/rust-in-action
[INFO] tweaked toml for git repo https://github.com/AR-developer197/rust-in-action written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AR-developer197/rust-in-action on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AR-developer197/rust-in-action 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37dff4295b578dc245eec4188e8e9fe333f3168c9eab4b3fb25429ba548dea53
[INFO] running `Command { std: "docker" "start" "-a" "37dff4295b578dc245eec4188e8e9fe333f3168c9eab4b3fb25429ba548dea53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37dff4295b578dc245eec4188e8e9fe333f3168c9eab4b3fb25429ba548dea53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37dff4295b578dc245eec4188e8e9fe333f3168c9eab4b3fb25429ba548dea53", kill_on_drop: false }`
[INFO] [stdout] 37dff4295b578dc245eec4188e8e9fe333f3168c9eab4b3fb25429ba548dea53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f31e890f7b6b30fb3f90714170b32f6cafd00d6947113bbf6fe4ac95ae7e38d7
[INFO] running `Command { std: "docker" "start" "-a" "f31e890f7b6b30fb3f90714170b32f6cafd00d6947113bbf6fe4ac95ae7e38d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling zerocopy v0.8.21
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.0
[INFO] [stderr]     Checking rust-in-action v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/chap3/file.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/chap3/file.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sat_b`
[INFO] [stdout]   --> src/chap4/cube_sat.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let sat_b = CubeSat { id: 1, mailbox: Mailbox { messages: vec![] } };
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_sat_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sat_c`
[INFO] [stdout]   --> src/chap4/cube_sat.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let sat_c = CubeSat { id: 2, mailbox: Mailbox { messages: vec![] } };
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_sat_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_line` is never used
[INFO] [stdout]  --> src/grep.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn find_line(str_and_name: Vec<&str>) {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `grep` is never used
[INFO] [stdout]   --> src/grep.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn grep() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/chap3/file.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct File {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 16 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `File` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StatusMessage` is never used
[INFO] [stdout]  --> src/chap4/cube_sat.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum StatusMessage {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/chap4/cube_sat.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct CubeSat {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 8 |     id: u64,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CubeSat` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_status` is never used
[INFO] [stdout]   --> src/chap4/cube_sat.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn check_status(sat_id: CubeSat) -> CubeSat {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sat_b`
[INFO] [stdout]   --> src/chap4/cube_sat.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let sat_b = CubeSat { id: 1, mailbox: Mailbox { messages: vec![] } };
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_sat_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sat_c`
[INFO] [stdout]   --> src/chap4/cube_sat.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let sat_c = CubeSat { id: 2, mailbox: Mailbox { messages: vec![] } };
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_sat_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_line` is never used
[INFO] [stdout]  --> src/grep.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn find_line(str_and_name: Vec<&str>) {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `grep` is never used
[INFO] [stdout]   --> src/grep.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn grep() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/chap3/file.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct File {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 16 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `File` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StatusMessage` is never used
[INFO] [stdout]  --> src/chap4/cube_sat.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum StatusMessage {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/chap4/cube_sat.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct CubeSat {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 8 |     id: u64,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CubeSat` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_status` is never used
[INFO] [stdout]   --> src/chap4/cube_sat.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn check_status(sat_id: CubeSat) -> CubeSat {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.32s
[INFO] running `Command { std: "docker" "inspect" "f31e890f7b6b30fb3f90714170b32f6cafd00d6947113bbf6fe4ac95ae7e38d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f31e890f7b6b30fb3f90714170b32f6cafd00d6947113bbf6fe4ac95ae7e38d7", kill_on_drop: false }`
[INFO] [stdout] f31e890f7b6b30fb3f90714170b32f6cafd00d6947113bbf6fe4ac95ae7e38d7
