[INFO] fetching crate codetrotter_aoc_2019_solutions 0.9.0... [INFO] building codetrotter_aoc_2019_solutions-0.9.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate codetrotter_aoc_2019_solutions 0.9.0 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate codetrotter_aoc_2019_solutions 0.9.0 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 crates.io crate codetrotter_aoc_2019_solutions 0.9.0 [INFO] finished tweaking crates.io crate codetrotter_aoc_2019_solutions 0.9.0 [INFO] tweaked toml for crates.io crate codetrotter_aoc_2019_solutions 0.9.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate crates.io crate codetrotter_aoc_2019_solutions 0.9.0 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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded yaml-rust v0.3.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 903b4c21c6f946a5b0472d59cfe852c3a7cc45ae067267cf94f1c20cd1d7aaf2 [INFO] running `Command { std: "docker" "start" "-a" "903b4c21c6f946a5b0472d59cfe852c3a7cc45ae067267cf94f1c20cd1d7aaf2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "903b4c21c6f946a5b0472d59cfe852c3a7cc45ae067267cf94f1c20cd1d7aaf2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "903b4c21c6f946a5b0472d59cfe852c3a7cc45ae067267cf94f1c20cd1d7aaf2", kill_on_drop: false }` [INFO] [stdout] 903b4c21c6f946a5b0472d59cfe852c3a7cc45ae067267cf94f1c20cd1d7aaf2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 33bb6bbf30ef415f22d0430dd10ce29c8bd8d1d8f1cf0095de7730fbe2cb4d69 [INFO] running `Command { std: "docker" "start" "-a" "33bb6bbf30ef415f22d0430dd10ce29c8bd8d1d8f1cf0095de7730fbe2cb4d69", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling yaml-rust v0.3.5 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling num-traits v0.2.10 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling time v0.1.42 [INFO] [stderr] Compiling chrono v0.4.10 [INFO] [stderr] Compiling codetrotter_aoc_2019_solutions v0.9.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `chrono::prelude::*` [INFO] [stdout] --> src/lib.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 64 | use chrono::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/day_06.rs:167:70 [INFO] [stdout] | [INFO] [stdout] 167 | pub fn input_generator (input: &'static str) -> impl Iterator [INFO] [stdout] | ^^^^^^^^^ this elided lifetime gets resolved as `'static` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] help: consider specifying it explicitly [INFO] [stdout] | [INFO] [stdout] 167 | pub fn input_generator (input: &'static str) -> impl Iterator> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/day_06.rs:287:3 [INFO] [stdout] | [INFO] [stdout] 287 | drop(you_orbit); [INFO] [stdout] | ^^^^^---------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&str` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 287 - drop(you_orbit); [INFO] [stdout] 287 + let _ = you_orbit; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/day_06.rs:295:3 [INFO] [stdout] | [INFO] [stdout] 295 | drop(santa_orbits); [INFO] [stdout] | ^^^^^------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&str` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 295 - drop(santa_orbits); [INFO] [stdout] 295 + let _ = santa_orbits; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.71s [INFO] running `Command { std: "docker" "inspect" "33bb6bbf30ef415f22d0430dd10ce29c8bd8d1d8f1cf0095de7730fbe2cb4d69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "33bb6bbf30ef415f22d0430dd10ce29c8bd8d1d8f1cf0095de7730fbe2cb4d69", kill_on_drop: false }` [INFO] [stdout] 33bb6bbf30ef415f22d0430dd10ce29c8bd8d1d8f1cf0095de7730fbe2cb4d69 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0525f0c5ae406dc1e53ef96065393cb4670929c633060bcba7ca76fcabc1f5ae [INFO] running `Command { std: "docker" "start" "-a" "0525f0c5ae406dc1e53ef96065393cb4670929c633060bcba7ca76fcabc1f5ae", kill_on_drop: false }` [INFO] [stdout] warning: unused import: `chrono::prelude::*` [INFO] [stdout] --> src/lib.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 64 | use chrono::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/day_06.rs:167:70 [INFO] [stdout] | [INFO] [stdout] 167 | pub fn input_generator (input: &'static str) -> impl Iterator [INFO] [stdout] | ^^^^^^^^^ this elided lifetime gets resolved as `'static` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] help: consider specifying it explicitly [INFO] [stdout] | [INFO] [stdout] 167 | pub fn input_generator (input: &'static str) -> impl Iterator> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/day_06.rs:287:3 [INFO] [stdout] | [INFO] [stdout] 287 | drop(you_orbit); [INFO] [stdout] | ^^^^^---------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&str` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 287 - drop(you_orbit); [INFO] [stdout] 287 + let _ = you_orbit; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling codetrotter_aoc_2019_solutions v0.9.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/day_06.rs:295:3 [INFO] [stdout] | [INFO] [stdout] 295 | drop(santa_orbits); [INFO] [stdout] | ^^^^^------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&str` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 295 - drop(santa_orbits); [INFO] [stdout] 295 + let _ = santa_orbits; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::prelude::*` [INFO] [stdout] --> src/lib.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 64 | use chrono::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/day_06.rs:167:70 [INFO] [stdout] | [INFO] [stdout] 167 | pub fn input_generator (input: &'static str) -> impl Iterator [INFO] [stdout] | ^^^^^^^^^ this elided lifetime gets resolved as `'static` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] help: consider specifying it explicitly [INFO] [stdout] | [INFO] [stdout] 167 | pub fn input_generator (input: &'static str) -> impl Iterator> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/day_06.rs:287:3 [INFO] [stdout] | [INFO] [stdout] 287 | drop(you_orbit); [INFO] [stdout] | ^^^^^---------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&str` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 287 - drop(you_orbit); [INFO] [stdout] 287 + let _ = you_orbit; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/day_06.rs:295:3 [INFO] [stdout] | [INFO] [stdout] 295 | drop(santa_orbits); [INFO] [stdout] | ^^^^^------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&str` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 295 - drop(santa_orbits); [INFO] [stdout] 295 + let _ = santa_orbits; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.82s [INFO] running `Command { std: "docker" "inspect" "0525f0c5ae406dc1e53ef96065393cb4670929c633060bcba7ca76fcabc1f5ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0525f0c5ae406dc1e53ef96065393cb4670929c633060bcba7ca76fcabc1f5ae", kill_on_drop: false }` [INFO] [stdout] 0525f0c5ae406dc1e53ef96065393cb4670929c633060bcba7ca76fcabc1f5ae