[INFO] cloning repository https://github.com/Deskbot/Advent-of-Code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Deskbot/Advent-of-Code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeskbot%2FAdvent-of-Code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeskbot%2FAdvent-of-Code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97d5a7e7e7f2a57ec64a5591688d1c2f5e90617d
[INFO] building Deskbot/Advent-of-Code-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%2FDeskbot%2FAdvent-of-Code-2020" "/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/Deskbot/Advent-of-Code-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/Deskbot/Advent-of-Code-2020
[INFO] finished tweaking git repo https://github.com/Deskbot/Advent-of-Code-2020
[INFO] tweaked toml for git repo https://github.com/Deskbot/Advent-of-Code-2020 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Deskbot/Advent-of-Code-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]  Downloading crates ...
[INFO] [stderr]   Downloaded substring v1.4.0
[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] 38e3f9593fce4c0f653a641c97ca6bda6afb1e8cf5b12f7f25314c027fd5c0d8
[INFO] running `Command { std: "docker" "start" "-a" "38e3f9593fce4c0f653a641c97ca6bda6afb1e8cf5b12f7f25314c027fd5c0d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38e3f9593fce4c0f653a641c97ca6bda6afb1e8cf5b12f7f25314c027fd5c0d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38e3f9593fce4c0f653a641c97ca6bda6afb1e8cf5b12f7f25314c027fd5c0d8", kill_on_drop: false }`
[INFO] [stdout] 38e3f9593fce4c0f653a641c97ca6bda6afb1e8cf5b12f7f25314c027fd5c0d8
[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] 9efb8c33d020d3fb02f6473564c96bb93a83cc96210b4052ad68a1ba6842c678
[INFO] running `Command { std: "docker" "start" "-a" "9efb8c33d020d3fb02f6473564c96bb93a83cc96210b4052ad68a1ba6842c678", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling substring v1.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/day/day23.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p1`
[INFO] [stdout]   --> src/day/day22.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 {
[INFO] [stdout]    |          ^^ help: if this is intentional, prefix it with an underscore: `_p1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p2`
[INFO] [stdout]   --> src/day/day22.rs:45:20
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 {
[INFO] [stdout]    |                    ^^ help: if this is intentional, prefix it with an underscore: `_p2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cups`
[INFO] [stdout]  --> src/day/day23.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut cups = Cups::parse(input);
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_cups`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/day/day23.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut cups = Cups::parse(input);
[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: fields `current_cup` and `list` are never read
[INFO] [stdout]   --> src/day/day23.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Cups {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 14 |     current_cup: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 15 |     list: Vec<i64>
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `step` is never used
[INFO] [stdout]   --> src/day/day23.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Cups {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn step(&mut self)  {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sum` is never used
[INFO] [stdout]   --> src/util.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub trait SumI64 {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] 93 |     fn sum(&mut self) -> i64;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `product` is never used
[INFO] [stdout]    --> src/util.rs:103:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub trait ProductI64 {
[INFO] [stdout]     |           ---------- method in this trait
[INFO] [stdout] 103 |     fn product(&mut self) -> i64;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `Command { std: "docker" "inspect" "9efb8c33d020d3fb02f6473564c96bb93a83cc96210b4052ad68a1ba6842c678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9efb8c33d020d3fb02f6473564c96bb93a83cc96210b4052ad68a1ba6842c678", kill_on_drop: false }`
[INFO] [stdout] 9efb8c33d020d3fb02f6473564c96bb93a83cc96210b4052ad68a1ba6842c678
[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] 43270cadb11d09ca6ab3680179dc304226bc02a3c7fc28d85140cebf2e1ae141
[INFO] running `Command { std: "docker" "start" "-a" "43270cadb11d09ca6ab3680179dc304226bc02a3c7fc28d85140cebf2e1ae141", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/day/day23.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p1`
[INFO] [stdout]   --> src/day/day22.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 {
[INFO] [stdout]    |          ^^ help: if this is intentional, prefix it with an underscore: `_p1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p2`
[INFO] [stdout]   --> src/day/day22.rs:45:20
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 {
[INFO] [stdout]    |                    ^^ help: if this is intentional, prefix it with an underscore: `_p2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cups`
[INFO] [stdout]  --> src/day/day23.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut cups = Cups::parse(input);
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_cups`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/day/day23.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut cups = Cups::parse(input);
[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: fields `current_cup` and `list` are never read
[INFO] [stdout]   --> src/day/day23.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Cups {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 14 |     current_cup: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 15 |     list: Vec<i64>
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `step` is never used
[INFO] [stdout]   --> src/day/day23.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Cups {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn step(&mut self)  {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sum` is never used
[INFO] [stdout]   --> src/util.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub trait SumI64 {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] 93 |     fn sum(&mut self) -> i64;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `product` is never used
[INFO] [stdout]    --> src/util.rs:103:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub trait ProductI64 {
[INFO] [stdout]     |           ---------- method in this trait
[INFO] [stdout] 103 |     fn product(&mut self) -> i64;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "43270cadb11d09ca6ab3680179dc304226bc02a3c7fc28d85140cebf2e1ae141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43270cadb11d09ca6ab3680179dc304226bc02a3c7fc28d85140cebf2e1ae141", kill_on_drop: false }`
[INFO] [stdout] 43270cadb11d09ca6ab3680179dc304226bc02a3c7fc28d85140cebf2e1ae141