[INFO] cloning repository https://github.com/webbalea/guess_the_number_game_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/webbalea/guess_the_number_game_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwebbalea%2Fguess_the_number_game_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwebbalea%2Fguess_the_number_game_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4445ff3cbc5ba9af7bdf08054bc0e6eb6c56e794
[INFO] testing webbalea/guess_the_number_game_rust against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwebbalea%2Fguess_the_number_game_rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/webbalea/guess_the_number_game_rust
[INFO] finished tweaking git repo https://github.com/webbalea/guess_the_number_game_rust
[INFO] tweaked toml for git repo https://github.com/webbalea/guess_the_number_game_rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/webbalea/guess_the_number_game_rust on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/webbalea/guess_the_number_game_rust 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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_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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36bfd06fea23eb5b5dbaf4ae226efefa7ec24b11a283153ecf27ae903d82f548
[INFO] running `Command { std: "docker" "start" "-a" "36bfd06fea23eb5b5dbaf4ae226efefa7ec24b11a283153ecf27ae903d82f548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36bfd06fea23eb5b5dbaf4ae226efefa7ec24b11a283153ecf27ae903d82f548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36bfd06fea23eb5b5dbaf4ae226efefa7ec24b11a283153ecf27ae903d82f548", kill_on_drop: false }`
[INFO] [stdout] 36bfd06fea23eb5b5dbaf4ae226efefa7ec24b11a283153ecf27ae903d82f548
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e897d21f0f20dd5b2846e30cc456fd43a7e4f7ddb742fa81b78286b89eb622ad
[INFO] running `Command { std: "docker" "start" "-a" "e897d21f0f20dd5b2846e30cc456fd43a7e4f7ddb742fa81b78286b89eb622ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling colored v2.1.0
[INFO] [stderr]    Compiling guess_the_number_game_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `flush` found for struct `Stdout` in the current scope
[INFO] [stdout]   --> src/main.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 |         io::stdout().flush().unwrap();
[INFO] [stdout]    |                      ^^^^^ method not found in `Stdout`
[INFO] [stdout]   --> /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:1801:8
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method is available for `Stdout` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Write` which provides `flush` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::io::Write;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `guess_the_number_game_rust` (bin "guess_the_number_game_rust") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e897d21f0f20dd5b2846e30cc456fd43a7e4f7ddb742fa81b78286b89eb622ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e897d21f0f20dd5b2846e30cc456fd43a7e4f7ddb742fa81b78286b89eb622ad", kill_on_drop: false }`
[INFO] [stdout] e897d21f0f20dd5b2846e30cc456fd43a7e4f7ddb742fa81b78286b89eb622ad