[INFO] fetching crate devon 0.1.0...
[INFO] building devon-0.1.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate devon 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate devon 0.1.0 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 devon 0.1.0
[INFO] finished tweaking crates.io crate devon 0.1.0
[INFO] tweaked toml for crates.io crate devon 0.1.0 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 2 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] 1761a03f360719b95e52491bc8d527c948b36594e24dda6ae9a69d7a0cc3432d
[INFO] running `Command { std: "docker" "start" "-a" "1761a03f360719b95e52491bc8d527c948b36594e24dda6ae9a69d7a0cc3432d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1761a03f360719b95e52491bc8d527c948b36594e24dda6ae9a69d7a0cc3432d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1761a03f360719b95e52491bc8d527c948b36594e24dda6ae9a69d7a0cc3432d", kill_on_drop: false }`
[INFO] [stdout] 1761a03f360719b95e52491bc8d527c948b36594e24dda6ae9a69d7a0cc3432d
[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] e3f9b24a5cb54a3d789902ca3cfe74c0d03a71b396cf009b85d9374455d8099e
[INFO] running `Command { std: "docker" "start" "-a" "e3f9b24a5cb54a3d789902ca3cfe74c0d03a71b396cf009b85d9374455d8099e", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.95
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling devon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `WordProcessor` is never used
[INFO] [stdout]  --> src/core/grammar.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait WordProcessor {
[INFO] [stdout]   |       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "e3f9b24a5cb54a3d789902ca3cfe74c0d03a71b396cf009b85d9374455d8099e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3f9b24a5cb54a3d789902ca3cfe74c0d03a71b396cf009b85d9374455d8099e", kill_on_drop: false }`
[INFO] [stdout] e3f9b24a5cb54a3d789902ca3cfe74c0d03a71b396cf009b85d9374455d8099e
[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] 1e081ca14414876b5b8fa1c560a8949d29a106e608f272c5312bc561c20216e7
[INFO] running `Command { std: "docker" "start" "-a" "1e081ca14414876b5b8fa1c560a8949d29a106e608f272c5312bc561c20216e7", kill_on_drop: false }`
[INFO] [stdout] warning: trait `WordProcessor` is never used
[INFO] [stdout]  --> src/core/grammar.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait WordProcessor {
[INFO] [stdout]   |       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling devon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `WordProcessor` is never used
[INFO] [stdout]  --> src/core/grammar.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait WordProcessor {
[INFO] [stdout]   |       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "1e081ca14414876b5b8fa1c560a8949d29a106e608f272c5312bc561c20216e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e081ca14414876b5b8fa1c560a8949d29a106e608f272c5312bc561c20216e7", kill_on_drop: false }`
[INFO] [stdout] 1e081ca14414876b5b8fa1c560a8949d29a106e608f272c5312bc561c20216e7