[INFO] cloning repository https://github.com/sileixinhua/RustLearning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sileixinhua/RustLearning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsileixinhua%2FRustLearning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsileixinhua%2FRustLearning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6387e70ad6ee2dc8146167a3c471b74666b95880
[INFO] testing sileixinhua/RustLearning against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsileixinhua%2FRustLearning" "/workspace/builds/worker-87/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-87/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sileixinhua/RustLearning on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sileixinhua/RustLearning
[INFO] finished tweaking git repo https://github.com/sileixinhua/RustLearning
[INFO] tweaked toml for git repo https://github.com/sileixinhua/RustLearning written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] crate git repo https://github.com/sileixinhua/RustLearning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.rand
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50a8c2340fd56fc2fda77c2d1cb24b372dd9cf9bb3e1df89b34406fc3e89fe79
[INFO] running `Command { std: "docker" "start" "-a" "50a8c2340fd56fc2fda77c2d1cb24b372dd9cf9bb3e1df89b34406fc3e89fe79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50a8c2340fd56fc2fda77c2d1cb24b372dd9cf9bb3e1df89b34406fc3e89fe79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50a8c2340fd56fc2fda77c2d1cb24b372dd9cf9bb3e1df89b34406fc3e89fe79", kill_on_drop: false }`
[INFO] [stdout] 50a8c2340fd56fc2fda77c2d1cb24b372dd9cf9bb3e1df89b34406fc3e89fe79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4cff5c237b0160dc4265d93935b989ab057e51b191b0e263bb35e9d41bf0445
[INFO] running `Command { std: "docker" "start" "-a" "a4cff5c237b0160dc4265d93935b989ab057e51b191b0e263bb35e9d41bf0445", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.rand
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling untitled v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]  --> src/guess_what_game.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rand`
[INFO] [stdout]   --> src/guess_what_game.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let secret_number = rand::thread_rng().gen_range(1, 101);
[INFO] [stdout]    |                         ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `untitled` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "a4cff5c237b0160dc4265d93935b989ab057e51b191b0e263bb35e9d41bf0445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4cff5c237b0160dc4265d93935b989ab057e51b191b0e263bb35e9d41bf0445", kill_on_drop: false }`
[INFO] [stdout] a4cff5c237b0160dc4265d93935b989ab057e51b191b0e263bb35e9d41bf0445
