[INFO] cloning repository https://github.com/zonincodes/guessing_game_with_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zonincodes/guessing_game_with_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzonincodes%2Fguessing_game_with_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzonincodes%2Fguessing_game_with_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb1dfe4c845b0ecc00c2b7d29b6f9771eae188ee
[INFO] checking zonincodes/guessing_game_with_rust against try#1f5783cbeb5da8b38566d718631d016891e9c912 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzonincodes%2Fguessing_game_with_rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zonincodes/guessing_game_with_rust on toolchain 1f5783cbeb5da8b38566d718631d016891e9c912
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zonincodes/guessing_game_with_rust
[INFO] finished tweaking git repo https://github.com/zonincodes/guessing_game_with_rust
[INFO] tweaked toml for git repo https://github.com/zonincodes/guessing_game_with_rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zonincodes/guessing_game_with_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" "+1f5783cbeb5da8b38566d718631d016891e9c912" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f20e041ffdfcdd1c5e3aa2363514fd9d61589d96cefda4d0e2b63430c63983b
[INFO] running `Command { std: "docker" "start" "-a" "5f20e041ffdfcdd1c5e3aa2363514fd9d61589d96cefda4d0e2b63430c63983b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f20e041ffdfcdd1c5e3aa2363514fd9d61589d96cefda4d0e2b63430c63983b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f20e041ffdfcdd1c5e3aa2363514fd9d61589d96cefda4d0e2b63430c63983b", kill_on_drop: false }`
[INFO] [stdout] 5f20e041ffdfcdd1c5e3aa2363514fd9d61589d96cefda4d0e2b63430c63983b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54a455fbeca5d2745d06c7dc78409b80527f78cba1c3706bfdf80fbff07cb41c
[INFO] running `Command { std: "docker" "start" "-a" "54a455fbeca5d2745d06c7dc78409b80527f78cba1c3706bfdf80fbff07cb41c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `content` is never used
[INFO] [stdout]   --> src/lib.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | trait  State {
[INFO] [stdout]    |        ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn content<'a>(&self, _post: &'a Post) -> &'a str {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `content` is never used
[INFO] [stdout]   --> src/lib.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | trait  State {
[INFO] [stdout]    |        ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn content<'a>(&self, _post: &'a Post) -> &'a str {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::write`
[INFO] [stdout]  --> src/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fmt::write, ops::Add};
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::write`
[INFO] [stdout]  --> src/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fmt::write, ops::Add};
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `Command { std: "docker" "inspect" "54a455fbeca5d2745d06c7dc78409b80527f78cba1c3706bfdf80fbff07cb41c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54a455fbeca5d2745d06c7dc78409b80527f78cba1c3706bfdf80fbff07cb41c", kill_on_drop: false }`
[INFO] [stdout] 54a455fbeca5d2745d06c7dc78409b80527f78cba1c3706bfdf80fbff07cb41c