[INFO] fetching crate rustpython-ast 0.4.0...
[INFO] checking rustpython-ast-0.4.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate rustpython-ast 0.4.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate rustpython-ast 0.4.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustpython-ast 0.4.0
[INFO] finished tweaking crates.io crate rustpython-ast 0.4.0
[INFO] tweaked toml for crates.io crate rustpython-ast 0.4.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 46 packages to latest compatible versions
[INFO] [stderr]       Adding convert_case v0.4.0 (available: v0.6.0)
[INFO] [stderr]       Adding derive_more v0.99.18 (available: v1.0.0)
[INFO] [stderr]       Adding itertools v0.11.0 (available: v0.13.0)
[INFO] [stderr]       Adding lexical-parse-float v0.8.5 (available: v1.0.2)
[INFO] [stderr]       Adding lexical-parse-integer v0.8.6 (available: v1.0.2)
[INFO] [stderr]       Adding lexical-util v0.8.5 (available: v1.0.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b241348fc6afa3275705684da1e9a19ef25f078f3dc512aebbd91e965def716c
[INFO] running `Command { std: "docker" "start" "-a" "b241348fc6afa3275705684da1e9a19ef25f078f3dc512aebbd91e965def716c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b241348fc6afa3275705684da1e9a19ef25f078f3dc512aebbd91e965def716c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b241348fc6afa3275705684da1e9a19ef25f078f3dc512aebbd91e965def716c", kill_on_drop: false }`
[INFO] [stdout] b241348fc6afa3275705684da1e9a19ef25f078f3dc512aebbd91e965def716c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76f977a6b7e2d0ba9fa5bc4bacee123f187faf0cc1ee365553503e826052df38
[INFO] running `Command { std: "docker" "start" "-a" "76f977a6b7e2d0ba9fa5bc4bacee123f187faf0cc1ee365553503e826052df38", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling malachite-nz v0.4.16
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking rustpython-parser-vendored v0.4.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking malachite-base v0.4.16
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]    Compiling is-macro v0.3.6
[INFO] [stderr]     Checking rustpython-parser-core v0.4.0
[INFO] [stderr]     Checking malachite-q v0.4.16
[INFO] [stderr]     Checking malachite v0.4.16
[INFO] [stderr]     Checking malachite-bigint v0.2.0
[INFO] [stderr]     Checking rustpython-ast v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.84s
[INFO] running `Command { std: "docker" "inspect" "76f977a6b7e2d0ba9fa5bc4bacee123f187faf0cc1ee365553503e826052df38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76f977a6b7e2d0ba9fa5bc4bacee123f187faf0cc1ee365553503e826052df38", kill_on_drop: false }`
[INFO] [stdout] 76f977a6b7e2d0ba9fa5bc4bacee123f187faf0cc1ee365553503e826052df38