[INFO] cloning repository https://github.com/dernatsch/aoc2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dernatsch/aoc2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdernatsch%2Faoc2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdernatsch%2Faoc2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e7428d149353425b14006263f2c630f2dae56c0
[INFO] building dernatsch/aoc2021 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%2Fdernatsch%2Faoc2021" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dernatsch/aoc2021 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/dernatsch/aoc2021
[INFO] finished tweaking git repo https://github.com/dernatsch/aoc2021
[INFO] tweaked toml for git repo https://github.com/dernatsch/aoc2021 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dernatsch/aoc2021 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4cca77ae42a9b928ec6fd8cdbd2f16e60b5cd0301c3bdec13e090096988ac955
[INFO] running `Command { std: "docker" "start" "-a" "4cca77ae42a9b928ec6fd8cdbd2f16e60b5cd0301c3bdec13e090096988ac955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cca77ae42a9b928ec6fd8cdbd2f16e60b5cd0301c3bdec13e090096988ac955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cca77ae42a9b928ec6fd8cdbd2f16e60b5cd0301c3bdec13e090096988ac955", kill_on_drop: false }`
[INFO] [stdout] 4cca77ae42a9b928ec6fd8cdbd2f16e60b5cd0301c3bdec13e090096988ac955
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3abcc955f2d64bb4a0d0af9fa90aba34df8f596a232acd1a6fd1951d059a699f
[INFO] running `Command { std: "docker" "start" "-a" "3abcc955f2d64bb4a0d0af9fa90aba34df8f596a232acd1a6fd1951d059a699f", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Empty` is never constructed
[INFO] [stdout]   --> src/16/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum PacketContent {
[INFO] [stdout]    |      ------------- variant in this enum
[INFO] [stdout] 39 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PacketContent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/14/main.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{self, Write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/14/main.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |     for i in 0..40 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]    --> src/14/main.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 57  | impl Polymer {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 105 |     fn len(&self) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lowy`
[INFO] [stdout]   --> src/5/main.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |             let lowy = cmp::max(self.y1, self.y2);
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_lowy`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lowy`
[INFO] [stdout]   --> src/5/main.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |             let lowy = cmp::max(self.y1, self.y2);
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_lowy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_right_diagnoal` is never used
[INFO] [stdout]   --> src/5/main.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Line {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn is_right_diagnoal(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_board` is never used
[INFO] [stdout]    --> src/5/main.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn print_board(b: &Vec<Line>) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/9/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `Command { std: "docker" "inspect" "3abcc955f2d64bb4a0d0af9fa90aba34df8f596a232acd1a6fd1951d059a699f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3abcc955f2d64bb4a0d0af9fa90aba34df8f596a232acd1a6fd1951d059a699f", kill_on_drop: false }`
[INFO] [stdout] 3abcc955f2d64bb4a0d0af9fa90aba34df8f596a232acd1a6fd1951d059a699f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 187f05a3f5795785ddf02a7d9ac175473cb5a1cc08f1427342f716bb6ad69d24
[INFO] running `Command { std: "docker" "start" "-a" "187f05a3f5795785ddf02a7d9ac175473cb5a1cc08f1427342f716bb6ad69d24", kill_on_drop: false }`
[INFO] [stderr]    Compiling aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/9/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Empty` is never constructed
[INFO] [stdout]   --> src/16/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum PacketContent {
[INFO] [stdout]    |      ------------- variant in this enum
[INFO] [stdout] 39 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PacketContent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/14/main.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{self, Write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/14/main.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |     for i in 0..40 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]    --> src/14/main.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 57  | impl Polymer {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 105 |     fn len(&self) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lowy`
[INFO] [stdout]   --> src/5/main.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |             let lowy = cmp::max(self.y1, self.y2);
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_lowy`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lowy`
[INFO] [stdout]   --> src/5/main.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |             let lowy = cmp::max(self.y1, self.y2);
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_lowy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_right_diagnoal` is never used
[INFO] [stdout]   --> src/5/main.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Line {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn is_right_diagnoal(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_board` is never used
[INFO] [stdout]    --> src/5/main.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn print_board(b: &Vec<Line>) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "187f05a3f5795785ddf02a7d9ac175473cb5a1cc08f1427342f716bb6ad69d24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "187f05a3f5795785ddf02a7d9ac175473cb5a1cc08f1427342f716bb6ad69d24", kill_on_drop: false }`
[INFO] [stdout] 187f05a3f5795785ddf02a7d9ac175473cb5a1cc08f1427342f716bb6ad69d24