[INFO] cloning repository https://github.com/minchang-KIm/QR_code_generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/minchang-KIm/QR_code_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminchang-KIm%2FQR_code_generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminchang-KIm%2FQR_code_generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33595f20a415f0387430cab72fe828d36afb7563
[INFO] checking minchang-KIm/QR_code_generator against try#c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f for pr-133502-20
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminchang-KIm%2FQR_code_generator" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/minchang-KIm/QR_code_generator
[INFO] finished tweaking git repo https://github.com/minchang-KIm/QR_code_generator
[INFO] tweaked toml for git repo https://github.com/minchang-KIm/QR_code_generator written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/minchang-KIm/QR_code_generator on toolchain c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/minchang-KIm/QR_code_generator 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" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] c5dc0db7b7ac2b4eff3f54357beaae8f2f8ca596d1d832a465541ec780914410
[INFO] running `Command { std: "docker" "start" "-a" "c5dc0db7b7ac2b4eff3f54357beaae8f2f8ca596d1d832a465541ec780914410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5dc0db7b7ac2b4eff3f54357beaae8f2f8ca596d1d832a465541ec780914410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5dc0db7b7ac2b4eff3f54357beaae8f2f8ca596d1d832a465541ec780914410", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16368d078accdb24c4ebb8782e2475a023fc3ea2449c911109a9635c3cbe12bd
[INFO] running `Command { std: "docker" "start" "-a" "16368d078accdb24c4ebb8782e2475a023fc3ea2449c911109a9635c3cbe12bd", kill_on_drop: false }`
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[INFO] [stdout] warning: field `config` is never read
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct QrImageGenerator {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 17 |     config: Config,
[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 `alt_description` is never read
[INFO] [stdout]   --> src/image_provider.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct UnsplashResponse {
[INFO] [stdout]    |        ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     alt_description: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UnsplashResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `full`, `regular`, and `small` are never read
[INFO] [stdout]   --> src/image_provider.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct UnsplashUrls {
[INFO] [stdout]    |        ------------ fields in this struct
[INFO] [stdout] 19 |     raw: String,
[INFO] [stdout] 20 |     full: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 21 |     regular: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 22 |     small: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UnsplashUrls` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generator`
[INFO] [stdout]    --> src/lib.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let generator = QrImageGenerator::new(config);
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generator`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `config` is never read
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct QrImageGenerator {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 17 |     config: Config,
[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 `alt_description` is never read
[INFO] [stdout]   --> src/image_provider.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct UnsplashResponse {
[INFO] [stdout]    |        ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     alt_description: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UnsplashResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `full`, `regular`, and `small` are never read
[INFO] [stdout]   --> src/image_provider.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct UnsplashUrls {
[INFO] [stdout]    |        ------------ fields in this struct
[INFO] [stdout] 19 |     raw: String,
[INFO] [stdout] 20 |     full: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 21 |     regular: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 22 |     small: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UnsplashUrls` 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 1m 57s
[INFO] running `Command { std: "docker" "inspect" "16368d078accdb24c4ebb8782e2475a023fc3ea2449c911109a9635c3cbe12bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16368d078accdb24c4ebb8782e2475a023fc3ea2449c911109a9635c3cbe12bd", kill_on_drop: false }`
[INFO] [stdout] 16368d078accdb24c4ebb8782e2475a023fc3ea2449c911109a9635c3cbe12bd
