[INFO] cloning repository https://github.com/hsmtkk/solid-invention
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hsmtkk/solid-invention" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fsolid-invention", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fsolid-invention'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db717d83fc70d30afe1f86b7236b1a21770b9aa4
[INFO] building hsmtkk/solid-invention 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%2Fhsmtkk%2Fsolid-invention" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hsmtkk/solid-invention 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/hsmtkk/solid-invention
[INFO] finished tweaking git repo https://github.com/hsmtkk/solid-invention
[INFO] tweaked toml for git repo https://github.com/hsmtkk/solid-invention written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hsmtkk/solid-invention 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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7724b27cb5cfb8be8fc4f3a631b3e93bac2bec8ad5607d9f6043801d869057f3
[INFO] running `Command { std: "docker" "start" "-a" "7724b27cb5cfb8be8fc4f3a631b3e93bac2bec8ad5607d9f6043801d869057f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7724b27cb5cfb8be8fc4f3a631b3e93bac2bec8ad5607d9f6043801d869057f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7724b27cb5cfb8be8fc4f3a631b3e93bac2bec8ad5607d9f6043801d869057f3", kill_on_drop: false }`
[INFO] [stdout] 7724b27cb5cfb8be8fc4f3a631b3e93bac2bec8ad5607d9f6043801d869057f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 11740cc80e342a52f5b1822af0231cc85fb1347e8cd22ccab83ee18611561d05
[INFO] running `Command { std: "docker" "start" "-a" "11740cc80e342a52f5b1822af0231cc85fb1347e8cd22ccab83ee18611561d05", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling solid-invention v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Problem` is never constructed
[INFO] [stdout]  --> src/musikui.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Problem {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `solve` are never used
[INFO] [stdout]   --> src/musikui.rs:7:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Problem{
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 7  |     fn new(a:u16,b:u16) -> Problem {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     fn solve(&self) -> Option<Answer> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Answer` is never constructed
[INFO] [stdout]   --> src/musikui.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Answer {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/musikui.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl Answer{
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 32 |     fn new(x:u16,y:u16) -> Answer {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.61s
[INFO] running `Command { std: "docker" "inspect" "11740cc80e342a52f5b1822af0231cc85fb1347e8cd22ccab83ee18611561d05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11740cc80e342a52f5b1822af0231cc85fb1347e8cd22ccab83ee18611561d05", kill_on_drop: false }`
[INFO] [stdout] 11740cc80e342a52f5b1822af0231cc85fb1347e8cd22ccab83ee18611561d05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 93b9d8e84b7b37a5aebec0efe5b713c4de1799fd0609faadadaa8dfc11b1cf92
[INFO] running `Command { std: "docker" "start" "-a" "93b9d8e84b7b37a5aebec0efe5b713c4de1799fd0609faadadaa8dfc11b1cf92", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Problem` is never constructed
[INFO] [stdout]  --> src/musikui.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Problem {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `solve` are never used
[INFO] [stdout]   --> src/musikui.rs:7:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Problem{
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 7  |     fn new(a:u16,b:u16) -> Problem {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     fn solve(&self) -> Option<Answer> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Answer` is never constructed
[INFO] [stdout]   --> src/musikui.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Answer {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/musikui.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl Answer{
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 32 |     fn new(x:u16,y:u16) -> Answer {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling solid-invention v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "93b9d8e84b7b37a5aebec0efe5b713c4de1799fd0609faadadaa8dfc11b1cf92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93b9d8e84b7b37a5aebec0efe5b713c4de1799fd0609faadadaa8dfc11b1cf92", kill_on_drop: false }`
[INFO] [stdout] 93b9d8e84b7b37a5aebec0efe5b713c4de1799fd0609faadadaa8dfc11b1cf92