[INFO] cloning repository https://github.com/thomaskendrick/aoc_2015_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thomaskendrick/aoc_2015_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomaskendrick%2Faoc_2015_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomaskendrick%2Faoc_2015_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 290636f95b3d3bf31ea5463d8fb5adb060ab82c3
[INFO] checking thomaskendrick/aoc_2015_practice against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomaskendrick%2Faoc_2015_practice" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thomaskendrick/aoc_2015_practice on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thomaskendrick/aoc_2015_practice
[INFO] finished tweaking git repo https://github.com/thomaskendrick/aoc_2015_practice
[INFO] tweaked toml for git repo https://github.com/thomaskendrick/aoc_2015_practice written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/thomaskendrick/aoc_2015_practice 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6b30e3c3e9f117374ec6a176479be29cba96590e9fcb9a463529c056292e78d
[INFO] running `Command { std: "docker" "start" "-a" "b6b30e3c3e9f117374ec6a176479be29cba96590e9fcb9a463529c056292e78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6b30e3c3e9f117374ec6a176479be29cba96590e9fcb9a463529c056292e78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b30e3c3e9f117374ec6a176479be29cba96590e9fcb9a463529c056292e78d", kill_on_drop: false }`
[INFO] [stdout] b6b30e3c3e9f117374ec6a176479be29cba96590e9fcb9a463529c056292e78d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acc6fe099fa62726795d98216f93803bad2714cf1a41f990687c5728fe53577e
[INFO] running `Command { std: "docker" "start" "-a" "acc6fe099fa62726795d98216f93803bad2714cf1a41f990687c5728fe53577e", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking util v0.1.0 (/opt/rustwide/workdir/util)
[INFO] [stderr]     Checking a2015_15 v0.1.0 (/opt/rustwide/workdir/a2015_15)
[INFO] [stderr]     Checking a2015_1 v0.1.0 (/opt/rustwide/workdir/a2015_1)
[INFO] [stderr]     Checking a2015_4 v0.1.0 (/opt/rustwide/workdir/a2015_4)
[INFO] [stderr]     Checking a2015_8 v0.1.0 (/opt/rustwide/workdir/a2015_8)
[INFO] [stderr]     Checking a2015_11 v0.1.0 (/opt/rustwide/workdir/a2015_11)
[INFO] [stderr]     Checking a2015_6 v0.1.0 (/opt/rustwide/workdir/a2015_6)
[INFO] [stderr]     Checking a2015_13 v0.1.0 (/opt/rustwide/workdir/a2015_13)
[INFO] [stderr]     Checking a2015_9 v0.1.0 (/opt/rustwide/workdir/a2015_9)
[INFO] [stderr]     Checking a2015_2 v0.1.0 (/opt/rustwide/workdir/a2015_2)
[INFO] [stderr]     Checking a2015_16 v0.1.0 (/opt/rustwide/workdir/a2015_16)
[INFO] [stderr]     Checking a2015_3 v0.1.0 (/opt/rustwide/workdir/a2015_3)
[INFO] [stderr]     Checking a2015_10 v0.1.0 (/opt/rustwide/workdir/a2015_10)
[INFO] [stderr]     Checking a2015_5 v0.1.0 (/opt/rustwide/workdir/a2015_5)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> a2015_3/src/lib.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let mut target_pos = if self.robots_turn && self.robot_enabled {
[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] [stderr]     Checking a2015_7 v0.1.0 (/opt/rustwide/workdir/a2015_7)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> a2015_7/src/lib.rs:83:24
[INFO] [stdout]    |
[INFO] [stdout] 83 |         for g in guides.clone() {
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Vec<WireGuide<'_>>` does not implement `Clone`, so calling `clone` on `&Vec<WireGuide<'_>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 83 -         for g in guides.clone() {
[INFO] [stdout] 83 +         for g in guides {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking a2015_14 v0.1.0 (/opt/rustwide/workdir/a2015_14)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking a2015_12 v0.1.0 (/opt/rustwide/workdir/a2015_12)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> a2015_3/src/lib.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let mut target_pos = if self.robots_turn && self.robot_enabled {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> a2015_7/src/lib.rs:83:24
[INFO] [stdout]    |
[INFO] [stdout] 83 |         for g in guides.clone() {
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Vec<WireGuide<'_>>` does not implement `Clone`, so calling `clone` on `&Vec<WireGuide<'_>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 83 -         for g in guides.clone() {
[INFO] [stdout] 83 +         for g in guides {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "acc6fe099fa62726795d98216f93803bad2714cf1a41f990687c5728fe53577e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acc6fe099fa62726795d98216f93803bad2714cf1a41f990687c5728fe53577e", kill_on_drop: false }`
[INFO] [stdout] acc6fe099fa62726795d98216f93803bad2714cf1a41f990687c5728fe53577e