[INFO] cloning repository https://github.com/spocot/MalachiteLang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spocot/MalachiteLang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspocot%2FMalachiteLang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspocot%2FMalachiteLang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b843d1919c78433fd52457deb3f9ea971da5c547
[INFO] building spocot/MalachiteLang against try#9b5e8b16bd1c4acf4cf8e6880368314cf021a987+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspocot%2FMalachiteLang" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spocot/MalachiteLang on toolchain 9b5e8b16bd1c4acf4cf8e6880368314cf021a987
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/spocot/MalachiteLang
[INFO] finished tweaking git repo https://github.com/spocot/MalachiteLang
[INFO] tweaked toml for git repo https://github.com/spocot/MalachiteLang written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/spocot/MalachiteLang 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" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02a0d6d95e4532990cd64953fc24d9a1a555e2646a5d34ea3b42e66fb36b8ec2
[INFO] running `Command { std: "docker" "start" "-a" "02a0d6d95e4532990cd64953fc24d9a1a555e2646a5d34ea3b42e66fb36b8ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02a0d6d95e4532990cd64953fc24d9a1a555e2646a5d34ea3b42e66fb36b8ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a0d6d95e4532990cd64953fc24d9a1a555e2646a5d34ea3b42e66fb36b8ec2", kill_on_drop: false }`
[INFO] [stdout] 02a0d6d95e4532990cd64953fc24d9a1a555e2646a5d34ea3b42e66fb36b8ec2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4b328e5329dd5cf083ea488daa0f0ceb0665226fd89bc109835bed37ee84d60
[INFO] running `Command { std: "docker" "start" "-a" "c4b328e5329dd5cf083ea488daa0f0ceb0665226fd89bc109835bed37ee84d60", kill_on_drop: false }`
[INFO] [stderr]    Compiling malachite v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/lexer/tokentypes.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Node<T> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 30 |     node: T,
[INFO] [stdout] 31 |     parent: Option<Weak<RefCell<Node<T>>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ntype` and `nval` are never read
[INFO] [stdout]   --> src/lexer/tokentypes.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub struct TypeNode<T> {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 82 |     ntype: Type,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 83 |     nval: Rc<RefCell<Node<T>>>
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeNode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "c4b328e5329dd5cf083ea488daa0f0ceb0665226fd89bc109835bed37ee84d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4b328e5329dd5cf083ea488daa0f0ceb0665226fd89bc109835bed37ee84d60", kill_on_drop: false }`
[INFO] [stdout] c4b328e5329dd5cf083ea488daa0f0ceb0665226fd89bc109835bed37ee84d60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db6a2a5761d9aa9f23c6f43d5c9f970b180caec83c2df02da602424dfc97675c
[INFO] running `Command { std: "docker" "start" "-a" "db6a2a5761d9aa9f23c6f43d5c9f970b180caec83c2df02da602424dfc97675c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s
[INFO] running `Command { std: "docker" "inspect" "db6a2a5761d9aa9f23c6f43d5c9f970b180caec83c2df02da602424dfc97675c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db6a2a5761d9aa9f23c6f43d5c9f970b180caec83c2df02da602424dfc97675c", kill_on_drop: false }`
[INFO] [stdout] db6a2a5761d9aa9f23c6f43d5c9f970b180caec83c2df02da602424dfc97675c