[INFO] cloning repository https://github.com/4Christinelh4/Rust-notes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/4Christinelh4/Rust-notes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4Christinelh4%2FRust-notes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4Christinelh4%2FRust-notes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4f8d65a944eccce632917c392b962048f5e8c43
[INFO] checking 4Christinelh4/Rust-notes against master#f8463896a9b36a04899c013bd8825a7fd29dd7a4 for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4Christinelh4%2FRust-notes" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/4Christinelh4/Rust-notes
[INFO] finished tweaking git repo https://github.com/4Christinelh4/Rust-notes
[INFO] tweaked toml for git repo https://github.com/4Christinelh4/Rust-notes written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/4Christinelh4/Rust-notes on toolchain f8463896a9b36a04899c013bd8825a7fd29dd7a4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/4Christinelh4/Rust-notes 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" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa7286426a2168ca0a80721ee92f41fcbb645e463bb7829d4fc89bf7b493f59c
[INFO] running `Command { std: "docker" "start" "-a" "fa7286426a2168ca0a80721ee92f41fcbb645e463bb7829d4fc89bf7b493f59c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa7286426a2168ca0a80721ee92f41fcbb645e463bb7829d4fc89bf7b493f59c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa7286426a2168ca0a80721ee92f41fcbb645e463bb7829d4fc89bf7b493f59c", kill_on_drop: false }`
[INFO] [stdout] fa7286426a2168ca0a80721ee92f41fcbb645e463bb7829d4fc89bf7b493f59c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee6a0375bb6034a3fd6a42945118ee7917fe3d1ded1ee8fa71f0256bfce29e6c
[INFO] running `Command { std: "docker" "start" "-a" "ee6a0375bb6034a3fd6a42945118ee7917fe3d1ded1ee8fa71f0256bfce29e6c", kill_on_drop: false }`
[INFO] [stderr]     Checking explaination_about_str v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/main.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut c = "Rust string";
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/main.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut c = "Rust string";
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "ee6a0375bb6034a3fd6a42945118ee7917fe3d1ded1ee8fa71f0256bfce29e6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee6a0375bb6034a3fd6a42945118ee7917fe3d1ded1ee8fa71f0256bfce29e6c", kill_on_drop: false }`
[INFO] [stdout] ee6a0375bb6034a3fd6a42945118ee7917fe3d1ded1ee8fa71f0256bfce29e6c
