[INFO] cloning repository https://github.com/Hokutosei/learn_rustlang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hokutosei/learn_rustlang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHokutosei%2Flearn_rustlang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHokutosei%2Flearn_rustlang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eba99a8585999f1652270066e9c40a0946daef34
[INFO] testing Hokutosei/learn_rustlang against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHokutosei%2Flearn_rustlang" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hokutosei/learn_rustlang on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hokutosei/learn_rustlang
[INFO] finished tweaking git repo https://github.com/Hokutosei/learn_rustlang
[INFO] tweaked toml for git repo https://github.com/Hokutosei/learn_rustlang written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Hokutosei/learn_rustlang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21955467922d07b681c8807fbbba1c8d283b0a53cb086e95d23fbd56a542be1f
[INFO] running `Command { std: "docker" "start" "-a" "21955467922d07b681c8807fbbba1c8d283b0a53cb086e95d23fbd56a542be1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21955467922d07b681c8807fbbba1c8d283b0a53cb086e95d23fbd56a542be1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21955467922d07b681c8807fbbba1c8d283b0a53cb086e95d23fbd56a542be1f", kill_on_drop: false }`
[INFO] [stdout] 21955467922d07b681c8807fbbba1c8d283b0a53cb086e95d23fbd56a542be1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae9acb6a1d3f757cd9cc40c86ebfcfcfbea7b4479f3a8b887937dee8bde71e18
[INFO] running `Command { std: "docker" "start" "-a" "ae9acb6a1d3f757cd9cc40c86ebfcfcfbea7b4479f3a8b887937dee8bde71e18", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn101 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::rand`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rand;
[INFO] [stdout]   |     ^^^^^^^^^ no `rand` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> src/main.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |         thread::sleep_ms(delay);
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> src/main.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |             thread::sleep_ms(x);
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let x: u32 = randTime();
[INFO] [stdout]    |                    ---   ^^^^^^^^^^ expected `u32`, found `i32`
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    expected due to this
[INFO] [stdout]    |
[INFO] [stdout] help: you can convert an `i32` to a `u32` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let x: u32 = randTime().try_into().unwrap();
[INFO] [stdout]    |                                    ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learn101` due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ae9acb6a1d3f757cd9cc40c86ebfcfcfbea7b4479f3a8b887937dee8bde71e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae9acb6a1d3f757cd9cc40c86ebfcfcfbea7b4479f3a8b887937dee8bde71e18", kill_on_drop: false }`
[INFO] [stdout] ae9acb6a1d3f757cd9cc40c86ebfcfcfbea7b4479f3a8b887937dee8bde71e18