[INFO] cloning repository https://github.com/takagiy/hminfer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/takagiy/hminfer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakagiy%2Fhminfer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakagiy%2Fhminfer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 83242bb58cbb09bcd8e4679907f35ffe32b83ea7
[INFO] building takagiy/hminfer 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%2Ftakagiy%2Fhminfer" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/takagiy/hminfer 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/takagiy/hminfer
[INFO] finished tweaking git repo https://github.com/takagiy/hminfer
[INFO] tweaked toml for git repo https://github.com/takagiy/hminfer written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/takagiy/hminfer 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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 23e8358746da3db925a6f45d5ba9bd55a0fe3da5ad34f9268f86148c71e7e08b
[INFO] running `Command { std: "docker" "start" "-a" "23e8358746da3db925a6f45d5ba9bd55a0fe3da5ad34f9268f86148c71e7e08b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23e8358746da3db925a6f45d5ba9bd55a0fe3da5ad34f9268f86148c71e7e08b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23e8358746da3db925a6f45d5ba9bd55a0fe3da5ad34f9268f86148c71e7e08b", kill_on_drop: false }`
[INFO] [stdout] 23e8358746da3db925a6f45d5ba9bd55a0fe3da5ad34f9268f86148c71e7e08b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 949cf11bac265a4be47344c28bb47d2da4fd81254c88904f5f1f9438cf5c8180
[INFO] running `Command { std: "docker" "start" "-a" "949cf11bac265a4be47344c28bb47d2da4fd81254c88904f5f1f9438cf5c8180", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling typed-arena v2.0.2
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling hminfer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/main.rs:296:34
[INFO] [stdout]     |
[INFO] [stdout] 227 | impl<'a> Row<'a> {
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 296 |     pub fn base_var(&'a self) -> &RefCell<RowVar<'a>> {
[INFO] [stdout]     |                                  ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/main.rs:289:9
[INFO] [stdout]     |
[INFO] [stdout] 289 |         level: usize,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/main.rs:290:9
[INFO] [stdout]     |
[INFO] [stdout] 290 |         ctx: &'a InferContext<'a>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]    --> src/main.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |         context: &mut HashMap<usize, &'a Type<'a>>,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "949cf11bac265a4be47344c28bb47d2da4fd81254c88904f5f1f9438cf5c8180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "949cf11bac265a4be47344c28bb47d2da4fd81254c88904f5f1f9438cf5c8180", kill_on_drop: false }`
[INFO] [stdout] 949cf11bac265a4be47344c28bb47d2da4fd81254c88904f5f1f9438cf5c8180
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a3fef6ce0ae0bbe87d6ae4187074b68fbe4523c6a61cf5b82e5fc7e51f7bd3e0
[INFO] running `Command { std: "docker" "start" "-a" "a3fef6ce0ae0bbe87d6ae4187074b68fbe4523c6a61cf5b82e5fc7e51f7bd3e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling hminfer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/main.rs:296:34
[INFO] [stdout]     |
[INFO] [stdout] 227 | impl<'a> Row<'a> {
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 296 |     pub fn base_var(&'a self) -> &RefCell<RowVar<'a>> {
[INFO] [stdout]     |                                  ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/main.rs:289:9
[INFO] [stdout]     |
[INFO] [stdout] 289 |         level: usize,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/main.rs:290:9
[INFO] [stdout]     |
[INFO] [stdout] 290 |         ctx: &'a InferContext<'a>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]    --> src/main.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |         context: &mut HashMap<usize, &'a Type<'a>>,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "a3fef6ce0ae0bbe87d6ae4187074b68fbe4523c6a61cf5b82e5fc7e51f7bd3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3fef6ce0ae0bbe87d6ae4187074b68fbe4523c6a61cf5b82e5fc7e51f7bd3e0", kill_on_drop: false }`
[INFO] [stdout] a3fef6ce0ae0bbe87d6ae4187074b68fbe4523c6a61cf5b82e5fc7e51f7bd3e0