[INFO] updating cached repository maxastyler/brusselator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/maxastyler/brusselator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/maxastyler/brusselator" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/maxastyler/brusselator"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/maxastyler/brusselator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/maxastyler/brusselator" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/maxastyler/brusselator"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/maxastyler/brusselator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a91ceed0f515a0744fda37e3bab74c740339ae63
[INFO] sha for GitHub repo maxastyler/brusselator: a91ceed0f515a0744fda37e3bab74c740339ae63
[INFO] validating manifest of maxastyler/brusselator on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of maxastyler/brusselator on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing maxastyler/brusselator
[INFO] finished frobbing maxastyler/brusselator
[INFO] frobbed toml for maxastyler/brusselator written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/maxastyler/brusselator/Cargo.toml
[INFO] started frobbing maxastyler/brusselator
[INFO] finished frobbing maxastyler/brusselator
[INFO] frobbed toml for maxastyler/brusselator written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/maxastyler/brusselator/Cargo.toml
[INFO] crate maxastyler/brusselator already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking maxastyler/brusselator against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-2/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/maxastyler/brusselator:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e169b81dd016948bdeb37e2f0bd112844b0f19a94cb65f46bdbacd7c5fd61012
[INFO] running `"docker" "start" "-a" "e169b81dd016948bdeb37e2f0bd112844b0f19a94cb65f46bdbacd7c5fd61012"`
[INFO] [stderr]     Checking iter-read v0.1.0
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking console v0.7.5
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking serde-pickle v0.4.1
[INFO] [stderr]     Checking brusselator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `SubCommand`
[INFO] [stderr]   --> src/main.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 | use clap::{App, Arg, SubCommand};
[INFO] [stderr]    |                      ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SubCommand`
[INFO] [stderr]   --> src/main.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 | use clap::{App, Arg, SubCommand};
[INFO] [stderr]    |                      ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `positions` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/main.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let (x, y) = positions.last().unwrap();
[INFO] [stderr]    |                      --------- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 51 |         positions.push((
[INFO] [stderr]    |         ^^^^^^^^^ mutable borrow occurs here
[INFO] [stderr] 52 |             x + (1.0 - (b + 1.0) * x + a * x.powi(2) * y) * dt + (g[0] * w0 + g[1] * w1) * sq_dt,
[INFO] [stderr]    |             - immutable borrow later used here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `positions` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/main.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let (x, y) = positions.last().unwrap();
[INFO] [stderr]    |                      --------- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 51 |         positions.push((
[INFO] [stderr]    |         ^^^^^^^^^ mutable borrow occurs here
[INFO] [stderr] 52 |             x + (1.0 - (b + 1.0) * x + a * x.powi(2) * y) * dt + (g[0] * w0 + g[1] * w1) * sq_dt,
[INFO] [stderr]    |             - immutable borrow later used here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.93s
[INFO] running `"docker" "inspect" "e169b81dd016948bdeb37e2f0bd112844b0f19a94cb65f46bdbacd7c5fd61012"`
[INFO] running `"docker" "rm" "-f" "e169b81dd016948bdeb37e2f0bd112844b0f19a94cb65f46bdbacd7c5fd61012"`
[INFO] [stdout] e169b81dd016948bdeb37e2f0bd112844b0f19a94cb65f46bdbacd7c5fd61012