[INFO] cloning repository https://github.com/ouranos588/advent_of_code_2015
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ouranos588/advent_of_code_2015" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fouranos588%2Fadvent_of_code_2015", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fouranos588%2Fadvent_of_code_2015'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a868a27b48fc75f030532401b10d094d3ec92d8
[INFO] building ouranos588/advent_of_code_2015 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%2Fouranos588%2Fadvent_of_code_2015" "/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/ouranos588/advent_of_code_2015 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/ouranos588/advent_of_code_2015
[INFO] finished tweaking git repo https://github.com/ouranos588/advent_of_code_2015
[INFO] tweaked toml for git repo https://github.com/ouranos588/advent_of_code_2015 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ouranos588/advent_of_code_2015 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 92751ef217307b0fe5f989651d9dd745c8823106822d60bc86d2d7eee8fd950b
[INFO] running `Command { std: "docker" "start" "-a" "92751ef217307b0fe5f989651d9dd745c8823106822d60bc86d2d7eee8fd950b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92751ef217307b0fe5f989651d9dd745c8823106822d60bc86d2d7eee8fd950b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92751ef217307b0fe5f989651d9dd745c8823106822d60bc86d2d7eee8fd950b", kill_on_drop: false }`
[INFO] [stdout] 92751ef217307b0fe5f989651d9dd745c8823106822d60bc86d2d7eee8fd950b
[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] 2222722abf04bbc4224a9037a96387092d1c13336b285c887582e2fe7afc87ab
[INFO] running `Command { std: "docker" "start" "-a" "2222722abf04bbc4224a9037a96387092d1c13336b285c887582e2fe7afc87ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling aoc_2015 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `file_content`
[INFO] [stdout]  --> src/problem_5.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let file_content = fs::read_to_string(file_name)
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_content`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `Command { std: "docker" "inspect" "2222722abf04bbc4224a9037a96387092d1c13336b285c887582e2fe7afc87ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2222722abf04bbc4224a9037a96387092d1c13336b285c887582e2fe7afc87ab", kill_on_drop: false }`
[INFO] [stdout] 2222722abf04bbc4224a9037a96387092d1c13336b285c887582e2fe7afc87ab
[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] 969b42c0a68b63ee6955ef7a24a4f53dfe904d917d97b9385525a620874da5b1
[INFO] running `Command { std: "docker" "start" "-a" "969b42c0a68b63ee6955ef7a24a4f53dfe904d917d97b9385525a620874da5b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling aoc_2015 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `file_content`
[INFO] [stdout]  --> src/problem_5.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let file_content = fs::read_to_string(file_name)
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_content`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "969b42c0a68b63ee6955ef7a24a4f53dfe904d917d97b9385525a620874da5b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "969b42c0a68b63ee6955ef7a24a4f53dfe904d917d97b9385525a620874da5b1", kill_on_drop: false }`
[INFO] [stdout] 969b42c0a68b63ee6955ef7a24a4f53dfe904d917d97b9385525a620874da5b1