[INFO] fetching crate codetrotter_aoc_2019_solutions 0.9.0...
[INFO] checking codetrotter_aoc_2019_solutions-0.9.0 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate codetrotter_aoc_2019_solutions 0.9.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate codetrotter_aoc_2019_solutions 0.9.0 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "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-0-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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.1.56
[INFO] [stderr]   Downloaded num-integer v0.1.41
[INFO] [stderr]   Downloaded time v0.1.42
[INFO] [stderr]   Downloaded num-traits v0.2.10
[INFO] [stderr]   Downloaded yaml-rust v0.3.5
[INFO] [stderr]   Downloaded autocfg v0.1.7
[INFO] [stderr]   Downloaded chrono v0.4.10
[INFO] [stderr]   Downloaded clap v2.33.0
[INFO] [stderr]   Downloaded unicode-width v0.1.7
[INFO] [stderr]   Downloaded libc v0.2.66
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b24b02f22283a52f4ad828cf6cb39116306954cec91a4b4e32b8886d06f17505
[INFO] running `Command { std: "docker" "start" "-a" "b24b02f22283a52f4ad828cf6cb39116306954cec91a4b4e32b8886d06f17505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b24b02f22283a52f4ad828cf6cb39116306954cec91a4b4e32b8886d06f17505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b24b02f22283a52f4ad828cf6cb39116306954cec91a4b4e32b8886d06f17505", kill_on_drop: false }`
[INFO] [stdout] b24b02f22283a52f4ad828cf6cb39116306954cec91a4b4e32b8886d06f17505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c28822c158397ea2bcaec2df584c1499f71f0155710d6533ef9ad1085fa6b9f7
[INFO] running `Command { std: "docker" "start" "-a" "c28822c158397ea2bcaec2df584c1499f71f0155710d6533ef9ad1085fa6b9f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking 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: 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: 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] [stdout] warning: 3 warnings emitted
[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] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.46s
[INFO] running `Command { std: "docker" "inspect" "c28822c158397ea2bcaec2df584c1499f71f0155710d6533ef9ad1085fa6b9f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c28822c158397ea2bcaec2df584c1499f71f0155710d6533ef9ad1085fa6b9f7", kill_on_drop: false }`
[INFO] [stdout] c28822c158397ea2bcaec2df584c1499f71f0155710d6533ef9ad1085fa6b9f7