[INFO] cloning repository https://github.com/ntk-ta01/ahc011
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ntk-ta01/ahc011" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntk-ta01%2Fahc011", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntk-ta01%2Fahc011'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 71a940c6392ba9319fd40cd895e8b14785e34e41
[INFO] checking ntk-ta01/ahc011 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntk-ta01%2Fahc011" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ntk-ta01/ahc011
[INFO] finished tweaking git repo https://github.com/ntk-ta01/ahc011
[INFO] tweaked toml for git repo https://github.com/ntk-ta01/ahc011 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ntk-ta01/ahc011 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ntk-ta01/ahc011 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b13e789925c6c7ee7661604852a73baa92eb9e0e03f735f36321c896f4cbcdc
[INFO] running `Command { std: "docker" "start" "-a" "2b13e789925c6c7ee7661604852a73baa92eb9e0e03f735f36321c896f4cbcdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b13e789925c6c7ee7661604852a73baa92eb9e0e03f735f36321c896f4cbcdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b13e789925c6c7ee7661604852a73baa92eb9e0e03f735f36321c896f4cbcdc", kill_on_drop: false }`
[INFO] [stdout] 2b13e789925c6c7ee7661604852a73baa92eb9e0e03f735f36321c896f4cbcdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e8e83af0a1532955857e8e91d7f26b3af6b3cf671469cf62b2c0aec6d91d46b
[INFO] running `Command { std: "docker" "start" "-a" "9e8e83af0a1532955857e8e91d7f26b3af6b3cf671469cf62b2c0aec6d91d46b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling im-rc v14.3.0
[INFO] [stderr]    Compiling proconio-derive v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]     Checking proconio v0.3.6
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking rand_hc v0.2.0
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking ndarray v0.13.0
[INFO] [stderr]     Checking sized-chunks v0.5.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking nalgebra v0.20.0
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]     Checking ahc011 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3574:21
[INFO] [stdout]      |
[INFO] [stdout] 3574 |                     empty.1 += 1;
[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 `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3531:21
[INFO] [stdout]      |
[INFO] [stdout] 3531 |                     empty.1 += 1;
[INFO] [stdout]      |                     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3493:29
[INFO] [stdout]      |
[INFO] [stdout] 3493 | ...                   empty.1 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3472:29
[INFO] [stdout]      |
[INFO] [stdout] 3472 | ...                   empty.1 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3445:25
[INFO] [stdout]      |
[INFO] [stdout] 3445 |                         empty.1 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3432:21
[INFO] [stdout]      |
[INFO] [stdout] 3432 |                     empty.0 += 1;
[INFO] [stdout]      |                     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3389:21
[INFO] [stdout]      |
[INFO] [stdout] 3389 |                     empty.0 += 1;
[INFO] [stdout]      |                     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3351:29
[INFO] [stdout]      |
[INFO] [stdout] 3351 | ...                   empty.0 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3330:29
[INFO] [stdout]      |
[INFO] [stdout] 3330 | ...                   empty.0 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3303:25
[INFO] [stdout]      |
[INFO] [stdout] 3303 |                         empty.0 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1451:17
[INFO] [stdout]      |
[INFO] [stdout] 1451 |                 empty.1 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1388:21
[INFO] [stdout]      |
[INFO] [stdout] 1388 |                     empty.1 += 1;
[INFO] [stdout]      |                     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1349:17
[INFO] [stdout]      |
[INFO] [stdout] 1349 |                 empty.1 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1298:17
[INFO] [stdout]      |
[INFO] [stdout] 1298 |                 empty.1 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1290:17
[INFO] [stdout]      |
[INFO] [stdout] 1290 |                 empty.1 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3267:25
[INFO] [stdout]      |
[INFO] [stdout] 3267 |                         empty.1 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:2872:25
[INFO] [stdout]      |
[INFO] [stdout] 2872 |                         empty.0 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:2203:33
[INFO] [stdout]      |
[INFO] [stdout] 2203 | ...                   empty.1 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:2461:25
[INFO] [stdout]      |
[INFO] [stdout] 2461 |                         empty.1 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:2086:25
[INFO] [stdout]      |
[INFO] [stdout] 2086 |                         empty.1 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:2023:25
[INFO] [stdout]      |
[INFO] [stdout] 2023 |                         empty.1 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1699:33
[INFO] [stdout]      |
[INFO] [stdout] 1699 | ...                   empty.0 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1956:25
[INFO] [stdout]      |
[INFO] [stdout] 1956 |                         empty.0 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1583:25
[INFO] [stdout]      |
[INFO] [stdout] 1583 |                         empty.0 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1520:25
[INFO] [stdout]      |
[INFO] [stdout] 1520 |                         empty.0 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1280:17
[INFO] [stdout]      |
[INFO] [stdout] 1280 |                 empty.0 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1217:21
[INFO] [stdout]      |
[INFO] [stdout] 1217 |                     empty.0 += 1;
[INFO] [stdout]      |                     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1178:17
[INFO] [stdout]      |
[INFO] [stdout] 1178 |                 empty.0 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1127:17
[INFO] [stdout]      |
[INFO] [stdout] 1127 |                 empty.0 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1119:17
[INFO] [stdout]      |
[INFO] [stdout] 1119 |                 empty.0 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `now` is never read
[INFO] [stdout]     --> src/bin/a.rs:4651:13
[INFO] [stdout]      |
[INFO] [stdout] 4651 |             now.0 -= 1;
[INFO] [stdout]      |             ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `now` is never read
[INFO] [stdout]     --> src/bin/a.rs:4629:17
[INFO] [stdout]      |
[INFO] [stdout] 4629 |                 now.0 -= 1;
[INFO] [stdout]      |                 ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `now` is never read
[INFO] [stdout]     --> src/bin/a.rs:4139:13
[INFO] [stdout]      |
[INFO] [stdout] 4139 |             now.1 -= 1;
[INFO] [stdout]      |             ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `now` is never read
[INFO] [stdout]     --> src/bin/a.rs:4117:17
[INFO] [stdout]      |
[INFO] [stdout] 4117 |                 now.1 -= 1;
[INFO] [stdout]      |                 ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:4650:13
[INFO] [stdout]      |
[INFO] [stdout] 4650 |             empty.0 += 1;
[INFO] [stdout]      |             ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:4138:13
[INFO] [stdout]      |
[INFO] [stdout] 4138 |             empty.1 += 1;
[INFO] [stdout]      |             ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3574:21
[INFO] [stdout]      |
[INFO] [stdout] 3574 |                     empty.1 += 1;
[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 `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3531:21
[INFO] [stdout]      |
[INFO] [stdout] 3531 |                     empty.1 += 1;
[INFO] [stdout]      |                     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3493:29
[INFO] [stdout]      |
[INFO] [stdout] 3493 | ...                   empty.1 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3472:29
[INFO] [stdout]      |
[INFO] [stdout] 3472 | ...                   empty.1 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3445:25
[INFO] [stdout]      |
[INFO] [stdout] 3445 |                         empty.1 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3432:21
[INFO] [stdout]      |
[INFO] [stdout] 3432 |                     empty.0 += 1;
[INFO] [stdout]      |                     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3389:21
[INFO] [stdout]      |
[INFO] [stdout] 3389 |                     empty.0 += 1;
[INFO] [stdout]      |                     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3351:29
[INFO] [stdout]      |
[INFO] [stdout] 3351 | ...                   empty.0 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3330:29
[INFO] [stdout]      |
[INFO] [stdout] 3330 | ...                   empty.0 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3303:25
[INFO] [stdout]      |
[INFO] [stdout] 3303 |                         empty.0 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1451:17
[INFO] [stdout]      |
[INFO] [stdout] 1451 |                 empty.1 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1388:21
[INFO] [stdout]      |
[INFO] [stdout] 1388 |                     empty.1 += 1;
[INFO] [stdout]      |                     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1349:17
[INFO] [stdout]      |
[INFO] [stdout] 1349 |                 empty.1 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1298:17
[INFO] [stdout]      |
[INFO] [stdout] 1298 |                 empty.1 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1290:17
[INFO] [stdout]      |
[INFO] [stdout] 1290 |                 empty.1 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:3267:25
[INFO] [stdout]      |
[INFO] [stdout] 3267 |                         empty.1 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:2872:25
[INFO] [stdout]      |
[INFO] [stdout] 2872 |                         empty.0 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:2203:33
[INFO] [stdout]      |
[INFO] [stdout] 2203 | ...                   empty.1 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:2461:25
[INFO] [stdout]      |
[INFO] [stdout] 2461 |                         empty.1 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:2086:25
[INFO] [stdout]      |
[INFO] [stdout] 2086 |                         empty.1 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:2023:25
[INFO] [stdout]      |
[INFO] [stdout] 2023 |                         empty.1 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1699:33
[INFO] [stdout]      |
[INFO] [stdout] 1699 | ...                   empty.0 += 1;
[INFO] [stdout]      |                       ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1956:25
[INFO] [stdout]      |
[INFO] [stdout] 1956 |                         empty.0 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1583:25
[INFO] [stdout]      |
[INFO] [stdout] 1583 |                         empty.0 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1520:25
[INFO] [stdout]      |
[INFO] [stdout] 1520 |                         empty.0 += 1;
[INFO] [stdout]      |                         ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1280:17
[INFO] [stdout]      |
[INFO] [stdout] 1280 |                 empty.0 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1217:21
[INFO] [stdout]      |
[INFO] [stdout] 1217 |                     empty.0 += 1;
[INFO] [stdout]      |                     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1178:17
[INFO] [stdout]      |
[INFO] [stdout] 1178 |                 empty.0 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1127:17
[INFO] [stdout]      |
[INFO] [stdout] 1127 |                 empty.0 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:1119:17
[INFO] [stdout]      |
[INFO] [stdout] 1119 |                 empty.0 += 1;
[INFO] [stdout]      |                 ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `now` is never read
[INFO] [stdout]     --> src/bin/a.rs:4651:13
[INFO] [stdout]      |
[INFO] [stdout] 4651 |             now.0 -= 1;
[INFO] [stdout]      |             ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `now` is never read
[INFO] [stdout]     --> src/bin/a.rs:4629:17
[INFO] [stdout]      |
[INFO] [stdout] 4629 |                 now.0 -= 1;
[INFO] [stdout]      |                 ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `now` is never read
[INFO] [stdout]     --> src/bin/a.rs:4139:13
[INFO] [stdout]      |
[INFO] [stdout] 4139 |             now.1 -= 1;
[INFO] [stdout]      |             ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `now` is never read
[INFO] [stdout]     --> src/bin/a.rs:4117:17
[INFO] [stdout]      |
[INFO] [stdout] 4117 |                 now.1 -= 1;
[INFO] [stdout]      |                 ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:4650:13
[INFO] [stdout]      |
[INFO] [stdout] 4650 |             empty.0 += 1;
[INFO] [stdout]      |             ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty` is never read
[INFO] [stdout]     --> src/bin/a.rs:4138:13
[INFO] [stdout]      |
[INFO] [stdout] 4138 |             empty.1 += 1;
[INFO] [stdout]      |             ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.07s
[INFO] running `Command { std: "docker" "inspect" "9e8e83af0a1532955857e8e91d7f26b3af6b3cf671469cf62b2c0aec6d91d46b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e8e83af0a1532955857e8e91d7f26b3af6b3cf671469cf62b2c0aec6d91d46b", kill_on_drop: false }`
[INFO] [stdout] 9e8e83af0a1532955857e8e91d7f26b3af6b3cf671469cf62b2c0aec6d91d46b