[INFO] crate ingrid 0.1.0 is already in cache
[INFO] checking ingrid-0.1.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate ingrid 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ingrid 0.1.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ingrid 0.1.0
[INFO] finished tweaking crates.io crate ingrid 0.1.0
[INFO] tweaked toml for crates.io crate ingrid 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2da28034a5ec7bb7effbc0d94d9b7e6753e330f1a530e9848a9e2cd59a92739b
[INFO] running `"docker" "start" "-a" "2da28034a5ec7bb7effbc0d94d9b7e6753e330f1a530e9848a9e2cd59a92739b"`
[INFO] [stderr]     Checking ingrid v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `grid`
[INFO] [stderr]   --> src/cell.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     grid: &'a Grid<T>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `coordinate`
[INFO] [stderr]   --> src/cell.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     coordinate: Coordinate
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/row_mut.rs:757:13
[INFO] [stderr]     |
[INFO] [stderr] 757 |         let mut row = grid.row_mut(0);
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/row_mut.rs:761:13
[INFO] [stderr]     |
[INFO] [stderr] 761 |         let mut row = grid.row_mut(1);
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/column_mut.rs:800:13
[INFO] [stderr]     |
[INFO] [stderr] 800 |         let mut column = grid.column_mut(0);
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/column_mut.rs:804:13
[INFO] [stderr]     |
[INFO] [stderr] 804 |         let mut column = grid.column_mut(1);
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `grid`
[INFO] [stderr]   --> src/cell.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     grid: &'a Grid<T>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `coordinate`
[INFO] [stderr]   --> src/cell.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     coordinate: Coordinate
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.44s
[INFO] running `"docker" "inspect" "2da28034a5ec7bb7effbc0d94d9b7e6753e330f1a530e9848a9e2cd59a92739b"`
[INFO] running `"docker" "rm" "-f" "2da28034a5ec7bb7effbc0d94d9b7e6753e330f1a530e9848a9e2cd59a92739b"`
[INFO] [stdout] 2da28034a5ec7bb7effbc0d94d9b7e6753e330f1a530e9848a9e2cd59a92739b