[INFO] cloning repository https://github.com/redwarp/advent-2020 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/redwarp/advent-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredwarp%2Fadvent-2020", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredwarp%2Fadvent-2020'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2894f7f036a8f50cde7c3d708dc3684045f6b2c7 [INFO] building redwarp/advent-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%2Fredwarp%2Fadvent-2020" "/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/redwarp/advent-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/redwarp/advent-2020 [INFO] finished tweaking git repo https://github.com/redwarp/advent-2020 [INFO] tweaked toml for git repo https://github.com/redwarp/advent-2020 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/redwarp/advent-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] [stderr] Blocking waiting for file lock on package cache [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] c4579c98309a56ac0e5ee4b05be75ee018c3d0a765243819bfcc8095d278f5a4 [INFO] running `Command { std: "docker" "start" "-a" "c4579c98309a56ac0e5ee4b05be75ee018c3d0a765243819bfcc8095d278f5a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c4579c98309a56ac0e5ee4b05be75ee018c3d0a765243819bfcc8095d278f5a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4579c98309a56ac0e5ee4b05be75ee018c3d0a765243819bfcc8095d278f5a4", kill_on_drop: false }` [INFO] [stdout] c4579c98309a56ac0e5ee4b05be75ee018c3d0a765243819bfcc8095d278f5a4 [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] 24e7c15b48d97bfb7fcbfd4f96d07295b781bf8be6a35278b5369c5bcadc18c9 [INFO] running `Command { std: "docker" "start" "-a" "24e7c15b48d97bfb7fcbfd4f96d07295b781bf8be6a35278b5369c5bcadc18c9", 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 thread_local v1.0.1 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling regex v1.4.2 [INFO] [stderr] Compiling advent-2020 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/day06.rs:15:33 [INFO] [stdout] | [INFO] [stdout] 14 | impl<'a> Group<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 15 | fn new(content: &'a str) -> Group { [INFO] [stdout] | ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `todo` [INFO] [stdout] --> src/day10.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | todo, vec, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day08.rs:92:21 [INFO] [stdout] | [INFO] [stdout] 92 | let mut line = lines.get_mut(index).unwrap(); [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: function `calculate_possible_plugs` is never used [INFO] [stdout] --> src/day10.rs:38:4 [INFO] [stdout] | [INFO] [stdout] 38 | fn calculate_possible_plugs(sockets: &Vec) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `index` is never read [INFO] [stdout] --> src/day10.rs:66:5 [INFO] [stdout] | [INFO] [stdout] 65 | struct Branch { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 66 | index: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Branch` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.76s [INFO] running `Command { std: "docker" "inspect" "24e7c15b48d97bfb7fcbfd4f96d07295b781bf8be6a35278b5369c5bcadc18c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "24e7c15b48d97bfb7fcbfd4f96d07295b781bf8be6a35278b5369c5bcadc18c9", kill_on_drop: false }` [INFO] [stdout] 24e7c15b48d97bfb7fcbfd4f96d07295b781bf8be6a35278b5369c5bcadc18c9 [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] a5d5d3eeb79990f7a898072ee8428a500e774b8d6da3da6c29e418be6a5178f7 [INFO] running `Command { std: "docker" "start" "-a" "a5d5d3eeb79990f7a898072ee8428a500e774b8d6da3da6c29e418be6a5178f7", kill_on_drop: false }` [INFO] [stderr] Compiling advent-2020 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/day06.rs:15:33 [INFO] [stdout] | [INFO] [stdout] 14 | impl<'a> Group<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 15 | fn new(content: &'a str) -> Group { [INFO] [stdout] | ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `todo` [INFO] [stdout] --> src/day10.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | todo, vec, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day08.rs:92:21 [INFO] [stdout] | [INFO] [stdout] 92 | let mut line = lines.get_mut(index).unwrap(); [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: function `calculate_possible_plugs` is never used [INFO] [stdout] --> src/day10.rs:38:4 [INFO] [stdout] | [INFO] [stdout] 38 | fn calculate_possible_plugs(sockets: &Vec) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `index` is never read [INFO] [stdout] --> src/day10.rs:66:5 [INFO] [stdout] | [INFO] [stdout] 65 | struct Branch { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 66 | index: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Branch` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s [INFO] running `Command { std: "docker" "inspect" "a5d5d3eeb79990f7a898072ee8428a500e774b8d6da3da6c29e418be6a5178f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a5d5d3eeb79990f7a898072ee8428a500e774b8d6da3da6c29e418be6a5178f7", kill_on_drop: false }` [INFO] [stdout] a5d5d3eeb79990f7a898072ee8428a500e774b8d6da3da6c29e418be6a5178f7