[INFO] cloning repository https://github.com/Natsume-Neko/Drop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Natsume-Neko/Drop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNatsume-Neko%2FDrop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNatsume-Neko%2FDrop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 549eebd77b0b2aa59154368ef1b2ba98ae3317fe
[INFO] building Natsume-Neko/Drop 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%2FNatsume-Neko%2FDrop" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Natsume-Neko/Drop 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/Natsume-Neko/Drop
[INFO] finished tweaking git repo https://github.com/Natsume-Neko/Drop
[INFO] tweaked toml for git repo https://github.com/Natsume-Neko/Drop written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Natsume-Neko/Drop 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ca1f14a3b866edcd32fd22133f9db47d156aac62ecf38ac237e930cdb1becf21
[INFO] running `Command { std: "docker" "start" "-a" "ca1f14a3b866edcd32fd22133f9db47d156aac62ecf38ac237e930cdb1becf21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca1f14a3b866edcd32fd22133f9db47d156aac62ecf38ac237e930cdb1becf21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca1f14a3b866edcd32fd22133f9db47d156aac62ecf38ac237e930cdb1becf21", kill_on_drop: false }`
[INFO] [stdout] ca1f14a3b866edcd32fd22133f9db47d156aac62ecf38ac237e930cdb1becf21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 39fdcdc76996f1d8a7a15db7e42f54b212b4a68bb46ea07fc63813b2f79161f3
[INFO] running `Command { std: "docker" "start" "-a" "39fdcdc76996f1d8a7a15db7e42f54b212b4a68bb46ea07fc63813b2f79161f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling DropLang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `token` and `message` are never read
[INFO] [stdout]   --> lib/parser/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ParseError {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 12 |     token: Token,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 13 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` 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 0.28s
[INFO] running `Command { std: "docker" "inspect" "39fdcdc76996f1d8a7a15db7e42f54b212b4a68bb46ea07fc63813b2f79161f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39fdcdc76996f1d8a7a15db7e42f54b212b4a68bb46ea07fc63813b2f79161f3", kill_on_drop: false }`
[INFO] [stdout] 39fdcdc76996f1d8a7a15db7e42f54b212b4a68bb46ea07fc63813b2f79161f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8ac33e3a27eca2db0c820282731b966d19a591a56d9d47f9564cad3fce577b6d
[INFO] running `Command { std: "docker" "start" "-a" "8ac33e3a27eca2db0c820282731b966d19a591a56d9d47f9564cad3fce577b6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling DropLang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `token` and `message` are never read
[INFO] [stdout]   --> lib/parser/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ParseError {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 12 |     token: Token,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 13 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` 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] [stdout] warning: fields `token` and `message` are never read
[INFO] [stdout]   --> lib/parser/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ParseError {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 12 |     token: Token,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 13 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` 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 `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "8ac33e3a27eca2db0c820282731b966d19a591a56d9d47f9564cad3fce577b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ac33e3a27eca2db0c820282731b966d19a591a56d9d47f9564cad3fce577b6d", kill_on_drop: false }`
[INFO] [stdout] 8ac33e3a27eca2db0c820282731b966d19a591a56d9d47f9564cad3fce577b6d