[INFO] cloning repository https://github.com/Tichau/advent-of-code-2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tichau/advent-of-code-2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTichau%2Fadvent-of-code-2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTichau%2Fadvent-of-code-2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7c8fbfb08b8970398a9bed3f910f878ae2025b6
[INFO] building Tichau/advent-of-code-2021 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTichau%2Fadvent-of-code-2021" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tichau/advent-of-code-2021 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tichau/advent-of-code-2021
[INFO] finished tweaking git repo https://github.com/Tichau/advent-of-code-2021
[INFO] tweaked toml for git repo https://github.com/Tichau/advent-of-code-2021 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Tichau/advent-of-code-2021 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 680ae3487b3d41332eba44dddde0bde9109226cfdbab973e8ce93795c8c34cad
[INFO] running `Command { std: "docker" "start" "-a" "680ae3487b3d41332eba44dddde0bde9109226cfdbab973e8ce93795c8c34cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "680ae3487b3d41332eba44dddde0bde9109226cfdbab973e8ce93795c8c34cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "680ae3487b3d41332eba44dddde0bde9109226cfdbab973e8ce93795c8c34cad", kill_on_drop: false }`
[INFO] [stdout] 680ae3487b3d41332eba44dddde0bde9109226cfdbab973e8ce93795c8c34cad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 290b2ac0230581be4978fc3be370aa3ca0afbdd52f8082bf7a05a4b1cf3d0a4e
[INFO] running `Command { std: "docker" "start" "-a" "290b2ac0230581be4978fc3be370aa3ca0afbdd52f8082bf7a05a4b1cf3d0a4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling matrixmultiply v0.3.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling ndarray v0.15.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/solvers/day18.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |                     let mut pair = &mut pairs[pair_index];
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/solvers/day18.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |                         let mut pair = &mut pairs[pair_index];
[INFO] [stdout]    |                             ----^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `Command { std: "docker" "inspect" "290b2ac0230581be4978fc3be370aa3ca0afbdd52f8082bf7a05a4b1cf3d0a4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "290b2ac0230581be4978fc3be370aa3ca0afbdd52f8082bf7a05a4b1cf3d0a4e", kill_on_drop: false }`
[INFO] [stdout] 290b2ac0230581be4978fc3be370aa3ca0afbdd52f8082bf7a05a4b1cf3d0a4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32173fd380e2a3896fd54ad9a6ea40334253cd71617669778e6163daf90038e0
[INFO] running `Command { std: "docker" "start" "-a" "32173fd380e2a3896fd54ad9a6ea40334253cd71617669778e6163daf90038e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/solvers/day18.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |                     let mut pair = &mut pairs[pair_index];
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/solvers/day18.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |                         let mut pair = &mut pairs[pair_index];
[INFO] [stdout]    |                             ----^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "32173fd380e2a3896fd54ad9a6ea40334253cd71617669778e6163daf90038e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32173fd380e2a3896fd54ad9a6ea40334253cd71617669778e6163daf90038e0", kill_on_drop: false }`
[INFO] [stdout] 32173fd380e2a3896fd54ad9a6ea40334253cd71617669778e6163daf90038e0