[INFO] fetching crate syml 0.4.0...
[INFO] building syml-0.4.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate syml 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate syml 0.4.0 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 syml 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate syml 0.4.0
[INFO] tweaked toml for crates.io crate syml 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate syml 0.4.0 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ecf0d94a6004694aa33fb9351744c6d91118a195c5520d2978c54eeec39540fa
[INFO] running `Command { std: "docker" "start" "-a" "ecf0d94a6004694aa33fb9351744c6d91118a195c5520d2978c54eeec39540fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecf0d94a6004694aa33fb9351744c6d91118a195c5520d2978c54eeec39540fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf0d94a6004694aa33fb9351744c6d91118a195c5520d2978c54eeec39540fa", kill_on_drop: false }`
[INFO] [stdout] ecf0d94a6004694aa33fb9351744c6d91118a195c5520d2978c54eeec39540fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 26931e453c335027456c6bc81c15d3125848a1db39473d57a3af62a4a1594660
[INFO] running `Command { std: "docker" "start" "-a" "26931e453c335027456c6bc81c15d3125848a1db39473d57a3af62a4a1594660", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.80
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling peg-runtime v0.8.2
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling peg-macros v0.8.2
[INFO] [stderr]    Compiling peg v0.8.2
[INFO] [stderr]    Compiling syml v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "26931e453c335027456c6bc81c15d3125848a1db39473d57a3af62a4a1594660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26931e453c335027456c6bc81c15d3125848a1db39473d57a3af62a4a1594660", kill_on_drop: false }`
[INFO] [stdout] 26931e453c335027456c6bc81c15d3125848a1db39473d57a3af62a4a1594660
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6c303c4c58492089934dda94e59278efa375e76635c60e2228bf6c448bcb0f4e
[INFO] running `Command { std: "docker" "start" "-a" "6c303c4c58492089934dda94e59278efa375e76635c60e2228bf6c448bcb0f4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling syml v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "6c303c4c58492089934dda94e59278efa375e76635c60e2228bf6c448bcb0f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c303c4c58492089934dda94e59278efa375e76635c60e2228bf6c448bcb0f4e", kill_on_drop: false }`
[INFO] [stdout] 6c303c4c58492089934dda94e59278efa375e76635c60e2228bf6c448bcb0f4e