[INFO] cloning repository https://github.com/fabien-michel/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/fabien-michel/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabien-michel%2Fadvent-of-code-2020", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabien-michel%2Fadvent-of-code-2020'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 10eeb0d8f3b3792e61c5acb0d45f017fd63ee0cb [INFO] building fabien-michel/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%2Ffabien-michel%2Fadvent-of-code-2020" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fabien-michel/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/fabien-michel/advent-of-code-2020 [INFO] finished tweaking git repo https://github.com/fabien-michel/advent-of-code-2020 [INFO] tweaked toml for git repo https://github.com/fabien-michel/advent-of-code-2020 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/fabien-michel/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 946eac18144763f9d351d5322e6b7908c97585c44f7ee45b1c71f542286cbbb2 [INFO] running `Command { std: "docker" "start" "-a" "946eac18144763f9d351d5322e6b7908c97585c44f7ee45b1c71f542286cbbb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "946eac18144763f9d351d5322e6b7908c97585c44f7ee45b1c71f542286cbbb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "946eac18144763f9d351d5322e6b7908c97585c44f7ee45b1c71f542286cbbb2", kill_on_drop: false }` [INFO] [stdout] 946eac18144763f9d351d5322e6b7908c97585c44f7ee45b1c71f542286cbbb2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0d78d7bb106827eaf309888ef4ad1dc1d51059a4ca732e7be20580d85a2e337c [INFO] running `Command { std: "docker" "start" "-a" "0d78d7bb106827eaf309888ef4ad1dc1d51059a4ca732e7be20580d85a2e337c", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Compiling nodrop v0.1.14 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling regex-syntax v0.6.21 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling num-format v0.4.0 [INFO] [stderr] Compiling regex v1.4.2 [INFO] [stderr] Compiling aoc_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/days/day04.rs:78:17 [INFO] [stdout] | [INFO] [stdout] 78 | "cm" => (150..=193), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 78 - "cm" => (150..=193), [INFO] [stdout] 78 + "cm" => 150..=193, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/days/day04.rs:79:17 [INFO] [stdout] | [INFO] [stdout] 79 | "in" => (59..=76), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 79 - "in" => (59..=76), [INFO] [stdout] 79 + "in" => 59..=76, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/days/day20_01.rs:71:55 [INFO] [stdout] | [INFO] [stdout] 71 | pub fn build_tile_matrix<'a>(all_tiles: &'a Tiles) -> TileMatrix { [INFO] [stdout] | -- ^^^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | | [INFO] [stdout] | lifetime `'a` declared here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/days/day20_01.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 27 | pub struct Tile { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 28 | id: usize, [INFO] [stdout] 29 | data: TileData, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Tile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ingredient` is never constructed [INFO] [stdout] --> src/days/day21.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct Ingredient { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.11s [INFO] running `Command { std: "docker" "inspect" "0d78d7bb106827eaf309888ef4ad1dc1d51059a4ca732e7be20580d85a2e337c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d78d7bb106827eaf309888ef4ad1dc1d51059a4ca732e7be20580d85a2e337c", kill_on_drop: false }` [INFO] [stdout] 0d78d7bb106827eaf309888ef4ad1dc1d51059a4ca732e7be20580d85a2e337c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b43035b536376a7a39af8abb5fc39bcaf41821db250bf17c4e49d9493af194cb [INFO] running `Command { std: "docker" "start" "-a" "b43035b536376a7a39af8abb5fc39bcaf41821db250bf17c4e49d9493af194cb", kill_on_drop: false }` [INFO] [stderr] Compiling aoc_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/days/day04.rs:78:17 [INFO] [stdout] | [INFO] [stdout] 78 | "cm" => (150..=193), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 78 - "cm" => (150..=193), [INFO] [stdout] 78 + "cm" => 150..=193, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/days/day04.rs:79:17 [INFO] [stdout] | [INFO] [stdout] 79 | "in" => (59..=76), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 79 - "in" => (59..=76), [INFO] [stdout] 79 + "in" => 59..=76, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/days/day20_01.rs:71:55 [INFO] [stdout] | [INFO] [stdout] 71 | pub fn build_tile_matrix<'a>(all_tiles: &'a Tiles) -> TileMatrix { [INFO] [stdout] | -- ^^^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | | [INFO] [stdout] | lifetime `'a` declared here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/days/day20_01.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 27 | pub struct Tile { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 28 | id: usize, [INFO] [stdout] 29 | data: TileData, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Tile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ingredient` is never constructed [INFO] [stdout] --> src/days/day21.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct Ingredient { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.19s [INFO] running `Command { std: "docker" "inspect" "b43035b536376a7a39af8abb5fc39bcaf41821db250bf17c4e49d9493af194cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b43035b536376a7a39af8abb5fc39bcaf41821db250bf17c4e49d9493af194cb", kill_on_drop: false }` [INFO] [stdout] b43035b536376a7a39af8abb5fc39bcaf41821db250bf17c4e49d9493af194cb