[INFO] cloning repository https://github.com/thenixan/aoc-2016
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thenixan/aoc-2016" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenixan%2Faoc-2016", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenixan%2Faoc-2016'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b238207f2a332c2a6fea7823ffe65f2f4554432f
[INFO] building thenixan/aoc-2016 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%2Fthenixan%2Faoc-2016" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thenixan/aoc-2016 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/thenixan/aoc-2016
[INFO] finished tweaking git repo https://github.com/thenixan/aoc-2016
[INFO] tweaked toml for git repo https://github.com/thenixan/aoc-2016 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/thenixan/aoc-2016 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iterslide v1.0.1
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[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] f2eeb32bba54cb3fc4a7f2b21beda4b5d30ed04ee2a8b72952c3c1f5d64094d7
[INFO] running `Command { std: "docker" "start" "-a" "f2eeb32bba54cb3fc4a7f2b21beda4b5d30ed04ee2a8b72952c3c1f5d64094d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2eeb32bba54cb3fc4a7f2b21beda4b5d30ed04ee2a8b72952c3c1f5d64094d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2eeb32bba54cb3fc4a7f2b21beda4b5d30ed04ee2a8b72952c3c1f5d64094d7", kill_on_drop: false }`
[INFO] [stdout] f2eeb32bba54cb3fc4a7f2b21beda4b5d30ed04ee2a8b72952c3c1f5d64094d7
[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] 0cb4b052297fe277491cee528b7c9775387d3f9478fde3d936e041fc6f1344e0
[INFO] running `Command { std: "docker" "start" "-a" "0cb4b052297fe277491cee528b7c9775387d3f9478fde3d936e041fc6f1344e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling iterslide v1.0.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling aoc-2016 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `empty_pos`
[INFO] [stdout]   --> src/task_22.rs:63:18
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let (empty_pos, empty_meta) = self.empty();
[INFO] [stdout]    |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_pos`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Output` is never constructed
[INFO] [stdout]   --> src/task_10.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Output {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_compressed` is never used
[INFO] [stdout]   --> src/task_9.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl Chunk {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 91 |     fn is_compressed(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `decompressable` is never used
[INFO] [stdout]    --> src/task_9.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | trait Compressed {
[INFO] [stdout]     |       ---------- method in this trait
[INFO] [stdout] 103 |     type Into;
[INFO] [stdout] 104 |     fn decompressable(&self) -> bool;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.81s
[INFO] running `Command { std: "docker" "inspect" "0cb4b052297fe277491cee528b7c9775387d3f9478fde3d936e041fc6f1344e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cb4b052297fe277491cee528b7c9775387d3f9478fde3d936e041fc6f1344e0", kill_on_drop: false }`
[INFO] [stdout] 0cb4b052297fe277491cee528b7c9775387d3f9478fde3d936e041fc6f1344e0
[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] 641bb202eb199311c4cdc0f5971103272491f87bfb5cc76ae5f3776cb5c54141
[INFO] running `Command { std: "docker" "start" "-a" "641bb202eb199311c4cdc0f5971103272491f87bfb5cc76ae5f3776cb5c54141", kill_on_drop: false }`
[INFO] [stderr]    Compiling aoc-2016 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `empty_pos`
[INFO] [stdout]   --> src/task_22.rs:63:18
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let (empty_pos, empty_meta) = self.empty();
[INFO] [stdout]    |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_pos`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Output` is never constructed
[INFO] [stdout]   --> src/task_10.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Output {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_compressed` is never used
[INFO] [stdout]   --> src/task_9.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl Chunk {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 91 |     fn is_compressed(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `decompressable` is never used
[INFO] [stdout]    --> src/task_9.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | trait Compressed {
[INFO] [stdout]     |       ---------- method in this trait
[INFO] [stdout] 103 |     type Into;
[INFO] [stdout] 104 |     fn decompressable(&self) -> bool;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "641bb202eb199311c4cdc0f5971103272491f87bfb5cc76ae5f3776cb5c54141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "641bb202eb199311c4cdc0f5971103272491f87bfb5cc76ae5f3776cb5c54141", kill_on_drop: false }`
[INFO] [stdout] 641bb202eb199311c4cdc0f5971103272491f87bfb5cc76ae5f3776cb5c54141