[INFO] cloning repository https://github.com/b4284/guessing_game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/b4284/guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fb4284%2Fguessing_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fb4284%2Fguessing_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1780cdf1b0740d0297c46b50d131e91c6ae2bd8
[INFO] checking b4284/guessing_game against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fb4284%2Fguessing_game" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/b4284/guessing_game on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/b4284/guessing_game
[INFO] finished tweaking git repo https://github.com/b4284/guessing_game
[INFO] tweaked toml for git repo https://github.com/b4284/guessing_game written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/b4284/guessing_game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6c1de30ee2cae656d2a176c7a58ee479b026d86985feedd9b589b88c2489dc85
[INFO] running `Command { std: "docker" "start" "-a" "6c1de30ee2cae656d2a176c7a58ee479b026d86985feedd9b589b88c2489dc85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c1de30ee2cae656d2a176c7a58ee479b026d86985feedd9b589b88c2489dc85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1de30ee2cae656d2a176c7a58ee479b026d86985feedd9b589b88c2489dc85", kill_on_drop: false }`
[INFO] [stdout] 6c1de30ee2cae656d2a176c7a58ee479b026d86985feedd9b589b88c2489dc85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f702456b5b06df5f1005ec26ecea601cff1f3f29e251f1d4e9c42c34b1a341dc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f702456b5b06df5f1005ec26ecea601cff1f3f29e251f1d4e9c42c34b1a341dc", kill_on_drop: false }`
[INFO] [stderr]     Checking guessing_game v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `rand` in `std`
[INFO] [stdout]  --> src/main.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let secret = std::rand::random::<u8>() % 100 + 1;
[INFO] [stdout]   |                       ^^^^ could not find `rand` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]   --> src/main.rs:31:38
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let input = std::io::stdin().read_line().ok().expect("shouldn't fail");
[INFO] [stdout]    |                                      ^^^^^^^^^- supplied 0 arguments
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      expected 1 argument
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `rand` in `std`
[INFO] [stdout]  --> src/main.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let secret = std::rand::random::<u8>() % 100 + 1;
[INFO] [stdout]   |                       ^^^^ could not find `rand` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]   --> src/main.rs:31:38
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let input = std::io::stdin().read_line().ok().expect("shouldn't fail");
[INFO] [stdout]    |                                      ^^^^^^^^^- supplied 0 arguments
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      expected 1 argument
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `trim` found for type `usize` in the current scope
[INFO] [stdout]   --> src/main.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |         match input.trim().parse::<u8>() {
[INFO] [stdout]    |                     ^^^^ method not found in `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `guessing_game`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `trim` found for type `usize` in the current scope
[INFO] [stdout]   --> src/main.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |         match input.trim().parse::<u8>() {
[INFO] [stdout]    |                     ^^^^ method not found in `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f702456b5b06df5f1005ec26ecea601cff1f3f29e251f1d4e9c42c34b1a341dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f702456b5b06df5f1005ec26ecea601cff1f3f29e251f1d4e9c42c34b1a341dc", kill_on_drop: false }`
[INFO] [stdout] f702456b5b06df5f1005ec26ecea601cff1f3f29e251f1d4e9c42c34b1a341dc
