[INFO] fetching crate nuts 0.2.1...
[INFO] building nuts-0.2.1 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate nuts 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate nuts 0.2.1 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 crates.io crate nuts 0.2.1
[INFO] finished tweaking crates.io crate nuts 0.2.1
[INFO] tweaked toml for crates.io crate nuts 0.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[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] 0ef35cd3feb3e20caea561dba04fc98ba2c762cb91b690c48e43021b8b3d4e53
[INFO] running `Command { std: "docker" "start" "-a" "0ef35cd3feb3e20caea561dba04fc98ba2c762cb91b690c48e43021b8b3d4e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ef35cd3feb3e20caea561dba04fc98ba2c762cb91b690c48e43021b8b3d4e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ef35cd3feb3e20caea561dba04fc98ba2c762cb91b690c48e43021b8b3d4e53", kill_on_drop: false }`
[INFO] [stdout] 0ef35cd3feb3e20caea561dba04fc98ba2c762cb91b690c48e43021b8b3d4e53
[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] b8071795fa8f201acecbd38a414513c610e11d7a579bbad1053550121517b7a6
[INFO] running `Command { std: "docker" "start" "-a" "b8071795fa8f201acecbd38a414513c610e11d7a579bbad1053550121517b7a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling nuts v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `file_path` is never read
[INFO] [stdout]   --> build.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Snippet {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 50 |     raw: String,
[INFO] [stdout] 51 |     file_path: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Snippet` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "b8071795fa8f201acecbd38a414513c610e11d7a579bbad1053550121517b7a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8071795fa8f201acecbd38a414513c610e11d7a579bbad1053550121517b7a6", kill_on_drop: false }`
[INFO] [stdout] b8071795fa8f201acecbd38a414513c610e11d7a579bbad1053550121517b7a6
[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] 4022d94e504e61d29d2a2c865e8c00774e1ca8425d41f8318f336f4aee92b4b7
[INFO] running `Command { std: "docker" "start" "-a" "4022d94e504e61d29d2a2c865e8c00774e1ca8425d41f8318f336f4aee92b4b7", kill_on_drop: false }`
[INFO] [stdout] warning: field `file_path` is never read
[INFO] [stdout]   --> build.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Snippet {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 50 |     raw: String,
[INFO] [stdout] 51 |     file_path: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Snippet` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nuts v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "4022d94e504e61d29d2a2c865e8c00774e1ca8425d41f8318f336f4aee92b4b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4022d94e504e61d29d2a2c865e8c00774e1ca8425d41f8318f336f4aee92b4b7", kill_on_drop: false }`
[INFO] [stdout] 4022d94e504e61d29d2a2c865e8c00774e1ca8425d41f8318f336f4aee92b4b7