[INFO] cloning repository https://github.com/csangos/day3-2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/csangos/day3-2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcsangos%2Fday3-2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcsangos%2Fday3-2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 227897718012c998d53132e60dc6d8cbbb83cebd
[INFO] checking csangos/day3-2 against try#a611f2a14e38407ec6717a86a01424ee6fc80762 for pr-154992-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcsangos%2Fday3-2" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/csangos/day3-2
[INFO] finished tweaking git repo https://github.com/csangos/day3-2
[INFO] tweaked toml for git repo https://github.com/csangos/day3-2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/csangos/day3-2 on toolchain a611f2a14e38407ec6717a86a01424ee6fc80762
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a611f2a14e38407ec6717a86a01424ee6fc80762" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/csangos/day3-2 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" "+a611f2a14e38407ec6717a86a01424ee6fc80762" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+a611f2a14e38407ec6717a86a01424ee6fc80762" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71ce5e75b68da8ca58a56877065be0dfc03a7140fde1401f8e9ab87046c402d7
[INFO] running `Command { std: "docker" "start" "-a" "71ce5e75b68da8ca58a56877065be0dfc03a7140fde1401f8e9ab87046c402d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71ce5e75b68da8ca58a56877065be0dfc03a7140fde1401f8e9ab87046c402d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ce5e75b68da8ca58a56877065be0dfc03a7140fde1401f8e9ab87046c402d7", kill_on_drop: false }`
[INFO] [stdout] 71ce5e75b68da8ca58a56877065be0dfc03a7140fde1401f8e9ab87046c402d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+a611f2a14e38407ec6717a86a01424ee6fc80762" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f16150d8134e054b0516143752af4f5f4aacbeb6c63da89eaeba1ef58c813fb
[INFO] running `Command { std: "docker" "start" "-a" "9f16150d8134e054b0516143752af4f5f4aacbeb6c63da89eaeba1ef58c813fb", kill_on_drop: false }`
[INFO] [stderr]     Checking day3-2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `bit_flag` is never read
[INFO] [stdout]   --> src/main.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut bit_flag = 0;
[INFO] [stdout]    |                        ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 52 |             bit_flag = 0;
[INFO] [stdout]    |             ------------ `bit_flag` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bit_flag` is never read
[INFO] [stdout]   --> src/main.rs:77:24
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut bit_flag = 0;
[INFO] [stdout]    |                        ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 94 |             bit_flag = 0;
[INFO] [stdout]    |             ------------ `bit_flag` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bit_flag` is never read
[INFO] [stdout]   --> src/main.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut bit_flag = 0;
[INFO] [stdout]    |                        ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 52 |             bit_flag = 0;
[INFO] [stdout]    |             ------------ `bit_flag` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bit_flag` is never read
[INFO] [stdout]   --> src/main.rs:77:24
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut bit_flag = 0;
[INFO] [stdout]    |                        ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 94 |             bit_flag = 0;
[INFO] [stdout]    |             ------------ `bit_flag` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "9f16150d8134e054b0516143752af4f5f4aacbeb6c63da89eaeba1ef58c813fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f16150d8134e054b0516143752af4f5f4aacbeb6c63da89eaeba1ef58c813fb", kill_on_drop: false }`
[INFO] [stdout] 9f16150d8134e054b0516143752af4f5f4aacbeb6c63da89eaeba1ef58c813fb