[INFO] fetching crate cok 0.1.13...
[INFO] building cok-0.1.13 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate cok 0.1.13 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate cok 0.1.13 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 cok 0.1.13
[INFO] finished tweaking crates.io crate cok 0.1.13
[INFO] tweaked toml for crates.io crate cok 0.1.13 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate cok 0.1.13 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded doe v0.1.85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 139066a00c301c87f5bbad3174fbec8bf55cb26ceaf8d1bbccf222f4ec8dd054
[INFO] running `Command { std: "docker" "start" "-a" "139066a00c301c87f5bbad3174fbec8bf55cb26ceaf8d1bbccf222f4ec8dd054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "139066a00c301c87f5bbad3174fbec8bf55cb26ceaf8d1bbccf222f4ec8dd054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "139066a00c301c87f5bbad3174fbec8bf55cb26ceaf8d1bbccf222f4ec8dd054", kill_on_drop: false }`
[INFO] [stdout] 139066a00c301c87f5bbad3174fbec8bf55cb26ceaf8d1bbccf222f4ec8dd054
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a8946caa9ed5a31944bc2a0a2940feebe0485089babc7b237fdb9e3dbbe46dc4
[INFO] running `Command { std: "docker" "start" "-a" "a8946caa9ed5a31944bc2a0a2940feebe0485089babc7b237fdb9e3dbbe46dc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling doe v0.1.85
[INFO] [stderr]    Compiling cok v0.1.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "a8946caa9ed5a31944bc2a0a2940feebe0485089babc7b237fdb9e3dbbe46dc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8946caa9ed5a31944bc2a0a2940feebe0485089babc7b237fdb9e3dbbe46dc4", kill_on_drop: false }`
[INFO] [stdout] a8946caa9ed5a31944bc2a0a2940feebe0485089babc7b237fdb9e3dbbe46dc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d891a83a308c387b44a076b325da1af78e411b09bcc694e4a40176511f55eb28
[INFO] running `Command { std: "docker" "start" "-a" "d891a83a308c387b44a076b325da1af78e411b09bcc694e4a40176511f55eb28", kill_on_drop: false }`
[INFO] [stderr]    Compiling cok v0.1.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "d891a83a308c387b44a076b325da1af78e411b09bcc694e4a40176511f55eb28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d891a83a308c387b44a076b325da1af78e411b09bcc694e4a40176511f55eb28", kill_on_drop: false }`
[INFO] [stdout] d891a83a308c387b44a076b325da1af78e411b09bcc694e4a40176511f55eb28