[INFO] cloning repository https://github.com/UBIDECO/parseltongue
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/UBIDECO/parseltongue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUBIDECO%2Fparseltongue", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUBIDECO%2Fparseltongue'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4adad7c36e24c885cd4992865f0c101da9f99f6b
[INFO] building UBIDECO/parseltongue 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%2FUBIDECO%2Fparseltongue" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/UBIDECO/parseltongue 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] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/UBIDECO/parseltongue
[INFO] finished tweaking git repo https://github.com/UBIDECO/parseltongue
[INFO] tweaked toml for git repo https://github.com/UBIDECO/parseltongue written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/UBIDECO/parseltongue 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 08b307181904411ec6bbcdfa5a404728eff9fdabf29041d0f56e258741e879ac
[INFO] running `Command { std: "docker" "start" "-a" "08b307181904411ec6bbcdfa5a404728eff9fdabf29041d0f56e258741e879ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08b307181904411ec6bbcdfa5a404728eff9fdabf29041d0f56e258741e879ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08b307181904411ec6bbcdfa5a404728eff9fdabf29041d0f56e258741e879ac", kill_on_drop: false }`
[INFO] [stdout] 08b307181904411ec6bbcdfa5a404728eff9fdabf29041d0f56e258741e879ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8e2726bfd0b65da901b1771ddede34441b57b33ce020834bd8f0a8d1b76021a5
[INFO] running `Command { std: "docker" "start" "-a" "8e2726bfd0b65da901b1771ddede34441b57b33ce020834bd8f0a8d1b76021a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling parseltongue v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/cursor.rs:120:28
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn fmt_span(&self, f: Formatter<'_>, span: Span) { todo!() }
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/cursor.rs:120:46
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn fmt_span(&self, f: Formatter<'_>, span: Span) { todo!() }
[INFO] [stdout]     |                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "8e2726bfd0b65da901b1771ddede34441b57b33ce020834bd8f0a8d1b76021a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e2726bfd0b65da901b1771ddede34441b57b33ce020834bd8f0a8d1b76021a5", kill_on_drop: false }`
[INFO] [stdout] 8e2726bfd0b65da901b1771ddede34441b57b33ce020834bd8f0a8d1b76021a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7579c1cc4bdc8296df5776f0ff19135c1b311495060d31fe9335cf7915ea505f
[INFO] running `Command { std: "docker" "start" "-a" "7579c1cc4bdc8296df5776f0ff19135c1b311495060d31fe9335cf7915ea505f", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/cursor.rs:120:28
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn fmt_span(&self, f: Formatter<'_>, span: Span) { todo!() }
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/cursor.rs:120:46
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn fmt_span(&self, f: Formatter<'_>, span: Span) { todo!() }
[INFO] [stdout]     |                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling parseltongue v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/cursor.rs:120:28
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn fmt_span(&self, f: Formatter<'_>, span: Span) { todo!() }
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/cursor.rs:120:46
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn fmt_span(&self, f: Formatter<'_>, span: Span) { todo!() }
[INFO] [stdout]     |                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "7579c1cc4bdc8296df5776f0ff19135c1b311495060d31fe9335cf7915ea505f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7579c1cc4bdc8296df5776f0ff19135c1b311495060d31fe9335cf7915ea505f", kill_on_drop: false }`
[INFO] [stdout] 7579c1cc4bdc8296df5776f0ff19135c1b311495060d31fe9335cf7915ea505f