[INFO] cloning repository https://github.com/jamie-null/day11 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamie-null/day11" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamie-null%2Fday11", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamie-null%2Fday11'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cadbdce7d839176b216da318baeb94e2d2523f91 [INFO] testing jamie-null/day11 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamie-null%2Fday11" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jamie-null/day11 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jamie-null/day11 [INFO] finished tweaking git repo https://github.com/jamie-null/day11 [INFO] tweaked toml for git repo https://github.com/jamie-null/day11 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/jamie-null/day11 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rand_core v0.5.1 [INFO] [stderr] Downloaded num-integer v0.1.44 [INFO] [stderr] Downloaded itoa v0.4.6 [INFO] [stderr] Downloaded serde v1.0.118 [INFO] [stderr] Downloaded num-traits v0.2.14 [INFO] [stderr] Downloaded regex-automata v0.1.9 [INFO] [stderr] Downloaded chrono v0.4.19 [INFO] [stderr] Downloaded smallvec v1.5.1 [INFO] [stderr] Downloaded num v0.3.1 [INFO] [stderr] Downloaded getrandom v0.1.15 [INFO] [stderr] Downloaded quote v1.0.7 [INFO] [stderr] Downloaded rand_chacha v0.2.2 [INFO] [stderr] Downloaded serde_json v1.0.60 [INFO] [stderr] Downloaded regex-syntax v0.6.21 [INFO] [stderr] Downloaded winapi v0.3.9 [INFO] [stderr] Downloaded syn v1.0.54 [INFO] [stderr] Downloaded unicode-xid v0.2.1 [INFO] [stderr] Downloaded serde_derive v1.0.118 [INFO] [stderr] Downloaded num-rational v0.3.2 [INFO] [stderr] Downloaded flatbuffers v0.6.1 [INFO] [stderr] Downloaded bstr v0.2.14 [INFO] [stderr] Downloaded wasi v0.9.0+wasi-snapshot-preview1 [INFO] [stderr] Downloaded wasi v0.10.0+wasi-snapshot-preview1 [INFO] [stderr] Downloaded time v0.1.44 [INFO] [stderr] Downloaded byteorder v1.3.4 [INFO] [stderr] Downloaded num-bigint v0.3.1 [INFO] [stderr] Downloaded aho-corasick v0.7.15 [INFO] [stderr] Downloaded memchr v2.3.4 [INFO] [stderr] Downloaded thread_local v1.0.1 [INFO] [stderr] Downloaded regex v1.4.2 [INFO] [stderr] Downloaded winapi-x86_64-pc-windows-gnu v0.4.0 [INFO] [stderr] Downloaded csv-core v0.1.10 [INFO] [stderr] Downloaded hex v0.4.2 [INFO] [stderr] Downloaded num-complex v0.3.1 [INFO] [stderr] Downloaded num-iter v0.1.42 [INFO] [stderr] Downloaded proc-macro2 v1.0.24 [INFO] [stderr] Downloaded winapi-i686-pc-windows-gnu v0.4.0 [INFO] [stderr] Downloaded rand_hc v0.2.0 [INFO] [stderr] Downloaded indexmap v1.6.0 [INFO] [stderr] Downloaded arrow v2.0.0 [INFO] [stderr] Downloaded rand v0.7.3 [INFO] [stderr] Downloaded libc v0.2.81 [INFO] [stderr] Downloaded csv v1.1.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2f86950cfd7105dace986f45375118a4c9c90d1083f0f55c99302125bb4279fa [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "2f86950cfd7105dace986f45375118a4c9c90d1083f0f55c99302125bb4279fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2f86950cfd7105dace986f45375118a4c9c90d1083f0f55c99302125bb4279fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f86950cfd7105dace986f45375118a4c9c90d1083f0f55c99302125bb4279fa", kill_on_drop: false }` [INFO] [stdout] 2f86950cfd7105dace986f45375118a4c9c90d1083f0f55c99302125bb4279fa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 33cadc7f31e4c9f26576a948bfc90d3948ddd3652731687c3c57074fedde52dc [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "33cadc7f31e4c9f26576a948bfc90d3948ddd3652731687c3c57074fedde52dc", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling syn v1.0.54 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Compiling hashbrown v0.9.1 [INFO] [stderr] Compiling serde_json v1.0.60 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling itoa v0.4.6 [INFO] [stderr] Compiling smallvec v1.5.1 [INFO] [stderr] Compiling regex-syntax v0.6.21 [INFO] [stderr] Compiling hex v0.4.2 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling flatbuffers v0.6.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-bigint v0.3.1 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling num-complex v0.3.1 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling regex v1.4.2 [INFO] [stderr] Compiling bstr v0.2.14 [INFO] [stderr] Compiling csv v1.1.5 [INFO] [stderr] Compiling num v0.3.1 [INFO] [stderr] Compiling arrow v2.0.0 [INFO] [stderr] Compiling day11 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `a` is assigned to, but never used [INFO] [stdout] --> src/main.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut a; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_a` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `b` is assigned to, but never used [INFO] [stdout] --> src/main.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | let mut b; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_b` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `a` is never read [INFO] [stdout] --> src/main.rs:34:13 [INFO] [stdout] | [INFO] [stdout] 34 | a = &mut seats; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `b` is never read [INFO] [stdout] --> src/main.rs:35:13 [INFO] [stdout] | [INFO] [stdout] 35 | b = &mut buffer; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `a` is never read [INFO] [stdout] --> src/main.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | a = &mut buffer; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `b` is never read [INFO] [stdout] --> src/main.rs:38:13 [INFO] [stdout] | [INFO] [stdout] 38 | b = &mut seats; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/main.rs:43:21 [INFO] [stdout] | [INFO] [stdout] 43 | let mut count = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | let mut count = 0; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 54.81s [INFO] running `Command { std: "docker" "inspect" "33cadc7f31e4c9f26576a948bfc90d3948ddd3652731687c3c57074fedde52dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "33cadc7f31e4c9f26576a948bfc90d3948ddd3652731687c3c57074fedde52dc", kill_on_drop: false }` [INFO] [stdout] 33cadc7f31e4c9f26576a948bfc90d3948ddd3652731687c3c57074fedde52dc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fd4a05f19ca2abbb6d99e7a39d12090295d2ccfff0c2cdcc9d0f904b92ba8260 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "fd4a05f19ca2abbb6d99e7a39d12090295d2ccfff0c2cdcc9d0f904b92ba8260", kill_on_drop: false }` [INFO] [stderr] Compiling day11 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `a` is assigned to, but never used [INFO] [stdout] --> src/main.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut a; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_a` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `b` is assigned to, but never used [INFO] [stdout] --> src/main.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | let mut b; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_b` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `a` is never read [INFO] [stdout] --> src/main.rs:34:13 [INFO] [stdout] | [INFO] [stdout] 34 | a = &mut seats; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `b` is never read [INFO] [stdout] --> src/main.rs:35:13 [INFO] [stdout] | [INFO] [stdout] 35 | b = &mut buffer; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `a` is never read [INFO] [stdout] --> src/main.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | a = &mut buffer; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `b` is never read [INFO] [stdout] --> src/main.rs:38:13 [INFO] [stdout] | [INFO] [stdout] 38 | b = &mut seats; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/main.rs:43:21 [INFO] [stdout] | [INFO] [stdout] 43 | let mut count = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | let mut count = 0; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.57s [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "fd4a05f19ca2abbb6d99e7a39d12090295d2ccfff0c2cdcc9d0f904b92ba8260", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fd4a05f19ca2abbb6d99e7a39d12090295d2ccfff0c2cdcc9d0f904b92ba8260", kill_on_drop: false }` [INFO] [stdout] fd4a05f19ca2abbb6d99e7a39d12090295d2ccfff0c2cdcc9d0f904b92ba8260 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] b41c419a8eea7052bbb0d19e9bc0120c1b9d02ff2cf0ac4369e5b2cdbff89327 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "b41c419a8eea7052bbb0d19e9bc0120c1b9d02ff2cf0ac4369e5b2cdbff89327", kill_on_drop: false }` [INFO] [stderr] warning: variable `a` is assigned to, but never used [INFO] [stderr] --> src/main.rs:27:13 [INFO] [stderr] | [INFO] [stderr] 27 | let mut a; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: consider using `_a` instead [INFO] [stderr] [INFO] [stderr] warning: variable `b` is assigned to, but never used [INFO] [stderr] --> src/main.rs:28:13 [INFO] [stderr] | [INFO] [stderr] 28 | let mut b; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_b` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `a` is never read [INFO] [stderr] --> src/main.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | a = &mut seats; [INFO] [stderr] | ^ [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 `b` is never read [INFO] [stderr] --> src/main.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 35 | b = &mut buffer; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `a` is never read [INFO] [stderr] --> src/main.rs:37:13 [INFO] [stderr] | [INFO] [stderr] 37 | a = &mut buffer; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `b` is never read [INFO] [stderr] --> src/main.rs:38:13 [INFO] [stderr] | [INFO] [stderr] 38 | b = &mut seats; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `count` [INFO] [stderr] --> src/main.rs:43:21 [INFO] [stderr] | [INFO] [stderr] 43 | let mut count = 0; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_count` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:43:17 [INFO] [stderr] | [INFO] [stderr] 43 | let mut count = 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: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/day11-6d0398a621ecf324) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b41c419a8eea7052bbb0d19e9bc0120c1b9d02ff2cf0ac4369e5b2cdbff89327", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b41c419a8eea7052bbb0d19e9bc0120c1b9d02ff2cf0ac4369e5b2cdbff89327", kill_on_drop: false }` [INFO] [stdout] b41c419a8eea7052bbb0d19e9bc0120c1b9d02ff2cf0ac4369e5b2cdbff89327