[INFO] cloning repository https://github.com/FullSiliconAlchemist/rust-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FullSiliconAlchemist/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFullSiliconAlchemist%2Frust-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFullSiliconAlchemist%2Frust-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 384ca024b23496f1e480a483b3b14109ff05d8c8
[INFO] checking FullSiliconAlchemist/rust-practice against 4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d for pr-159598
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFullSiliconAlchemist%2Frust-practice" "/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/FullSiliconAlchemist/rust-practice
[INFO] finished tweaking git repo https://github.com/FullSiliconAlchemist/rust-practice
[INFO] tweaked toml for git repo https://github.com/FullSiliconAlchemist/rust-practice written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FullSiliconAlchemist/rust-practice on toolchain 4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FullSiliconAlchemist/rust-practice 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" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking FullSiliconAlchemist/rust-practice against 4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d for pr-159598
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFullSiliconAlchemist%2Frust-practice" "/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/FullSiliconAlchemist/rust-practice
[INFO] finished tweaking git repo https://github.com/FullSiliconAlchemist/rust-practice
[INFO] tweaked toml for git repo https://github.com/FullSiliconAlchemist/rust-practice written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FullSiliconAlchemist/rust-practice on toolchain 4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FullSiliconAlchemist/rust-practice 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" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.76
[INFO] [stderr]   Downloaded libc v0.2.158
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 97a5e437c4e2a165c4fda530779c66b1303bd81237cc68f0bd5836fcf5feb98a
[INFO] running `Command { std: "docker" "start" "97a5e437c4e2a165c4fda530779c66b1303bd81237cc68f0bd5836fcf5feb98a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97a5e437c4e2a165c4fda530779c66b1303bd81237cc68f0bd5836fcf5feb98a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "97a5e437c4e2a165c4fda530779c66b1303bd81237cc68f0bd5836fcf5feb98a" "/opt/rustwide/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97a5e437c4e2a165c4fda530779c66b1303bd81237cc68f0bd5836fcf5feb98a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "97a5e437c4e2a165c4fda530779c66b1303bd81237cc68f0bd5836fcf5feb98a" "/opt/rustwide/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[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 v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rust-practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `io_example` is never used
[INFO] [stdout]   --> src/lesson_5.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn io_example() -> () {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `io_example` is never used
[INFO] [stdout]   --> src/lesson_5.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn io_example() -> () {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/lesson_7.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Shuttle {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Shuttle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/lesson_7.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Shuttle {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Shuttle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_name` is never used
[INFO] [stdout]   --> src/lesson_7.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Shuttle {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn get_name(&self) -> &str {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_name` is never used
[INFO] [stdout]   --> src/lesson_7.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Shuttle {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn get_name(&self) -> &str {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `1` and `2` are never read
[INFO] [stdout]   --> src/lesson_7.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct RGB (u8, u8, u8);
[INFO] [stdout]    |        ---      ^^  ^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `1` and `2` are never read
[INFO] [stdout]   --> src/lesson_7.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct RGB (u8, u8, u8);
[INFO] [stdout]    |        ---      ^^  ^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Triangle` is never constructed
[INFO] [stdout]   --> src/lesson_10.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | enum Shape {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Triangle
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Shape` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Triangle` is never constructed
[INFO] [stdout]   --> src/lesson_10.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | enum Shape {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Triangle
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Shape` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Unknown` and `Anonymous` are never constructed
[INFO] [stdout]   --> src/lesson_10.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum Location {
[INFO] [stdout]    |      -------- variants in this enum
[INFO] [stdout] 26 |     Unknown,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     Anonymous,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Location` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Unknown` and `Anonymous` are never constructed
[INFO] [stdout]   --> src/lesson_10.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum Location {
[INFO] [stdout]    |      -------- variants in this enum
[INFO] [stdout] 26 |     Unknown,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     Anonymous,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Location` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "97a5e437c4e2a165c4fda530779c66b1303bd81237cc68f0bd5836fcf5feb98a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97a5e437c4e2a165c4fda530779c66b1303bd81237cc68f0bd5836fcf5feb98a", kill_on_drop: false }`
[INFO] [stdout] 97a5e437c4e2a165c4fda530779c66b1303bd81237cc68f0bd5836fcf5feb98a
