[INFO] cloning repository https://github.com/MinusGix/mathlib4-viewer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MinusGix/mathlib4-viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMinusGix%2Fmathlib4-viewer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMinusGix%2Fmathlib4-viewer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 587158258aa461667401d5d19e5c1a9fa3c6f730
[INFO] checking MinusGix/mathlib4-viewer against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMinusGix%2Fmathlib4-viewer" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MinusGix/mathlib4-viewer
[INFO] finished tweaking git repo https://github.com/MinusGix/mathlib4-viewer
[INFO] tweaked toml for git repo https://github.com/MinusGix/mathlib4-viewer written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MinusGix/mathlib4-viewer on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MinusGix/mathlib4-viewer 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bfea8ed78f71142be4f75e4bcfc96d38cfdfd04b3a4cab35ee9c8fcbdf08661
[INFO] running `Command { std: "docker" "start" "-a" "7bfea8ed78f71142be4f75e4bcfc96d38cfdfd04b3a4cab35ee9c8fcbdf08661", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bfea8ed78f71142be4f75e4bcfc96d38cfdfd04b3a4cab35ee9c8fcbdf08661", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bfea8ed78f71142be4f75e4bcfc96d38cfdfd04b3a4cab35ee9c8fcbdf08661", kill_on_drop: false }`
[INFO] [stdout] 7bfea8ed78f71142be4f75e4bcfc96d38cfdfd04b3a4cab35ee9c8fcbdf08661
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0376b2889c0ed50d1db9bdb0b5b35d2b939285ba8de973969287d7b38abaa2ba
[INFO] running `Command { std: "docker" "start" "-a" "0376b2889c0ed50d1db9bdb0b5b35d2b939285ba8de973969287d7b38abaa2ba", kill_on_drop: false }`
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[INFO] [stderr]     Checking mathlib4-viewer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `data_dir` is never read
[INFO] [stdout]   --> src/main.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct DataState {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 49 |     data_dir: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DataState` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data_dir` is never read
[INFO] [stdout]   --> src/main.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct DataState {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 49 |     data_dir: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DataState` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.83s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: openssl v0.10.55
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] running `Command { std: "docker" "inspect" "0376b2889c0ed50d1db9bdb0b5b35d2b939285ba8de973969287d7b38abaa2ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0376b2889c0ed50d1db9bdb0b5b35d2b939285ba8de973969287d7b38abaa2ba", kill_on_drop: false }`
[INFO] [stdout] 0376b2889c0ed50d1db9bdb0b5b35d2b939285ba8de973969287d7b38abaa2ba