[INFO] updating cached repository https://github.com/levjj/rustsweeper
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f7ac027074b1995f2bd7193e5fb31b34d6dbb42b
[INFO] checking levjj/rustsweeper against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Flevjj%2Frustsweeper" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/levjj/rustsweeper on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/levjj/rustsweeper
[INFO] finished tweaking git repo https://github.com/levjj/rustsweeper
[INFO] tweaked toml for git repo https://github.com/levjj/rustsweeper written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/levjj/rustsweeper already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ca8ede280cb103b147ad85af8fa6ecf0f56d12f5450865d65d033ec38ba755bd
[INFO] running `"docker" "start" "-a" "ca8ede280cb103b147ad85af8fa6ecf0f56d12f5450865d65d033ec38ba755bd"`
[INFO] [stderr]    Compiling yew v0.7.0
[INFO] [stderr]     Checking getrandom v0.1.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.8
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]    Compiling yew-macro v0.7.0
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.7
[INFO] [stderr]     Checking stdweb v0.4.18
[INFO] [stderr]     Checking rustsweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]    --> src/model.rs:268:17
[INFO] [stderr]     |
[INFO] [stderr] 268 |                 x += 1;
[INFO] [stderr]     |                 ^
[INFO] [stderr] ...
[INFO] [stderr] 293 |         assert_neighbors!(field, (2, 2, 1), (2, 2, 2), (3, 2, 2), (1, 1, 1), (0, 0, 0))
[INFO] [stderr]     |         ------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]    --> src/model.rs:268:17
[INFO] [stderr]     |
[INFO] [stderr] 268 |                 x += 1;
[INFO] [stderr]     |                 ^
[INFO] [stderr] ...
[INFO] [stderr] 293 |         assert_neighbors!(field, (2, 2, 1), (2, 2, 2), (3, 2, 2), (1, 1, 1), (0, 0, 0))
[INFO] [stderr]     |         ------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]    --> src/model.rs:268:17
[INFO] [stderr]     |
[INFO] [stderr] 268 |                 x += 1;
[INFO] [stderr]     |                 ^
[INFO] [stderr] ...
[INFO] [stderr] 293 |         assert_neighbors!(field, (2, 2, 1), (2, 2, 2), (3, 2, 2), (1, 1, 1), (0, 0, 0))
[INFO] [stderr]     |         ------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]    --> src/model.rs:268:17
[INFO] [stderr]     |
[INFO] [stderr] 268 |                 x += 1;
[INFO] [stderr]     |                 ^
[INFO] [stderr] ...
[INFO] [stderr] 293 |         assert_neighbors!(field, (2, 2, 1), (2, 2, 2), (3, 2, 2), (1, 1, 1), (0, 0, 0))
[INFO] [stderr]     |         ------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]    --> src/model.rs:268:17
[INFO] [stderr]     |
[INFO] [stderr] 268 |                 x += 1;
[INFO] [stderr]     |                 ^
[INFO] [stderr] ...
[INFO] [stderr] 293 |         assert_neighbors!(field, (2, 2, 1), (2, 2, 2), (3, 2, 2), (1, 1, 1), (0, 0, 0))
[INFO] [stderr]     |         ------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `y` is never read
[INFO] [stderr]    --> src/model.rs:276:17
[INFO] [stderr]     |
[INFO] [stderr] 276 |                 y += 1;
[INFO] [stderr]     |                 ^
[INFO] [stderr] ...
[INFO] [stderr] 293 |         assert_neighbors!(field, (2, 2, 1), (2, 2, 2), (3, 2, 2), (1, 1, 1), (0, 0, 0))
[INFO] [stderr]     |         ------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `"docker" "inspect" "ca8ede280cb103b147ad85af8fa6ecf0f56d12f5450865d65d033ec38ba755bd"`
[INFO] running `"docker" "rm" "-f" "ca8ede280cb103b147ad85af8fa6ecf0f56d12f5450865d65d033ec38ba755bd"`
[INFO] [stdout] ca8ede280cb103b147ad85af8fa6ecf0f56d12f5450865d65d033ec38ba755bd