[INFO] cloning repository https://github.com/stela2502/rust_yaml
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stela2502/rust_yaml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstela2502%2Frust_yaml", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstela2502%2Frust_yaml'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d40fd9300165cc556de0c6231e041a326c05e10
[INFO] checking stela2502/rust_yaml/5d40fd9300165cc556de0c6231e041a326c05e10 against 1.94.0 for beta-1.95-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstela2502%2Frust_yaml" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/stela2502/rust_yaml
[INFO] finished tweaking git repo https://github.com/stela2502/rust_yaml
[INFO] tweaked toml for git repo https://github.com/stela2502/rust_yaml written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/stela2502/rust_yaml on toolchain 1.94.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.94.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/stela2502/rust_yaml 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" "+1.94.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 886e91744893953dc9300388092dc90a19ca8a0890691f4ec4f71c2b17e964be
[INFO] running `Command { std: "docker" "start" "-a" "886e91744893953dc9300388092dc90a19ca8a0890691f4ec4f71c2b17e964be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "886e91744893953dc9300388092dc90a19ca8a0890691f4ec4f71c2b17e964be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "886e91744893953dc9300388092dc90a19ca8a0890691f4ec4f71c2b17e964be", kill_on_drop: false }`
[INFO] [stdout] 886e91744893953dc9300388092dc90a19ca8a0890691f4ec4f71c2b17e964be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ea2ccbecd77b5063487ff9bd1001a2282959281783bac0e07b3a30c3790e0c0
[INFO] running `Command { std: "docker" "start" "-a" "5ea2ccbecd77b5063487ff9bd1001a2282959281783bac0e07b3a30c3790e0c0", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_yaml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `OpenOptions`
[INFO] [stdout]  --> src/yaml.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::{self, OpenOptions};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/yaml.rs:184:25
[INFO] [stdout]     |
[INFO] [stdout] 182 |                         panic!("  ↳ Array element with nested block below (indent > {})", indent);
[INFO] [stdout]     |                         ------------------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 183 |
[INFO] [stdout] 184 |                         let (child, consumed) = parse_block(&lines[i + 1..], indent);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenOptions`
[INFO] [stdout]  --> src/yaml.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::{self, OpenOptions};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/yaml.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `to_snake_case` and `guess_field_type` are never used
[INFO] [stdout]   --> src/yaml.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Yaml {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     fn to_snake_case(name: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn guess_field_type(yaml: &Yaml) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/yaml.rs:184:25
[INFO] [stdout]     |
[INFO] [stdout] 182 |                         panic!("  ↳ Array element with nested block below (indent > {})", indent);
[INFO] [stdout]     |                         ------------------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 183 |
[INFO] [stdout] 184 |                         let (child, consumed) = parse_block(&lines[i + 1..], indent);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/yaml.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stdout] warning: associated functions `to_snake_case` and `guess_field_type` are never used
[INFO] [stdout]   --> src/yaml.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Yaml {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     fn to_snake_case(name: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn guess_field_type(yaml: &Yaml) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5ea2ccbecd77b5063487ff9bd1001a2282959281783bac0e07b3a30c3790e0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ea2ccbecd77b5063487ff9bd1001a2282959281783bac0e07b3a30c3790e0c0", kill_on_drop: false }`
[INFO] [stdout] 5ea2ccbecd77b5063487ff9bd1001a2282959281783bac0e07b3a30c3790e0c0