[INFO] cloning repository https://github.com/lissitz/aoc-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lissitz/aoc-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flissitz%2Faoc-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flissitz%2Faoc-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44460dffad73e09790b131364d7140396a6d96d8
[INFO] building lissitz/aoc-2020 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%2Flissitz%2Faoc-2020" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lissitz/aoc-2020 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/lissitz/aoc-2020
[INFO] finished tweaking git repo https://github.com/lissitz/aoc-2020
[INFO] tweaked toml for git repo https://github.com/lissitz/aoc-2020 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lissitz/aoc-2020 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a5d3d0125d8c3aa8b0fd22504687ef893422bab89a179360d6ab9afaef3753ee
[INFO] running `Command { std: "docker" "start" "-a" "a5d3d0125d8c3aa8b0fd22504687ef893422bab89a179360d6ab9afaef3753ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5d3d0125d8c3aa8b0fd22504687ef893422bab89a179360d6ab9afaef3753ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5d3d0125d8c3aa8b0fd22504687ef893422bab89a179360d6ab9afaef3753ee", kill_on_drop: false }`
[INFO] [stdout] a5d3d0125d8c3aa8b0fd22504687ef893422bab89a179360d6ab9afaef3753ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b576d46d358fb14371c2daa08676ef9fa284be9b97db4a96634ca97858722ede
[INFO] running `Command { std: "docker" "start" "-a" "b576d46d358fb14371c2daa08676ef9fa284be9b97db4a96634ca97858722ede", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling aoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.29s
[INFO] running `Command { std: "docker" "inspect" "b576d46d358fb14371c2daa08676ef9fa284be9b97db4a96634ca97858722ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b576d46d358fb14371c2daa08676ef9fa284be9b97db4a96634ca97858722ede", kill_on_drop: false }`
[INFO] [stdout] b576d46d358fb14371c2daa08676ef9fa284be9b97db4a96634ca97858722ede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 27830907f639db601148f6621b73d90d1110e77447ff4c1ecbb51cdd1193a28c
[INFO] running `Command { std: "docker" "start" "-a" "27830907f639db601148f6621b73d90d1110e77447ff4c1ecbb51cdd1193a28c", kill_on_drop: false }`
[INFO] [stderr]    Compiling aoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> examples/25/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let N = 20201227;
[INFO] [stdout]   |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> examples/24/main.rs:138:44
[INFO] [stdout]     |
[INFO] [stdout] 138 |     fn _index(index: [usize; 2], x: usize, y: usize) -> usize {
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timestamp`
[INFO] [stdout]   --> examples/13/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let timestamp = lines.next().unwrap().parse::<u64>().unwrap();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timestamp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> examples/20/main.rs:222:44
[INFO] [stdout]     |
[INFO] [stdout] 222 |     fn _index(index: [usize; 2], x: usize, y: usize) -> usize {
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[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 1.54s
[INFO] running `Command { std: "docker" "inspect" "27830907f639db601148f6621b73d90d1110e77447ff4c1ecbb51cdd1193a28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27830907f639db601148f6621b73d90d1110e77447ff4c1ecbb51cdd1193a28c", kill_on_drop: false }`
[INFO] [stdout] 27830907f639db601148f6621b73d90d1110e77447ff4c1ecbb51cdd1193a28c