[INFO] fetching crate slotgraph 0.1.1...
[INFO] checking slotgraph-0.1.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate slotgraph 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate slotgraph 0.1.1 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 slotgraph 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate slotgraph 0.1.1
[INFO] tweaked toml for crates.io crate slotgraph 0.1.1 written to /workspace/builds/worker-4-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]      Locking 39 packages to latest compatible versions
[INFO] [stderr]       Adding fixedbitset v0.4.2 (available: v0.5.7)
[INFO] [stderr]       Adding rstest v0.19.0 (available: v0.22.0)
[INFO] [stderr]       Adding rstest_macros v0.19.0 (available: v0.22.0)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cac0be494569098e8d68b5f67e4f422037fd2778034bd11b7b01dd4c94a6d4e6
[INFO] running `Command { std: "docker" "start" "-a" "cac0be494569098e8d68b5f67e4f422037fd2778034bd11b7b01dd4c94a6d4e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cac0be494569098e8d68b5f67e4f422037fd2778034bd11b7b01dd4c94a6d4e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cac0be494569098e8d68b5f67e4f422037fd2778034bd11b7b01dd4c94a6d4e6", kill_on_drop: false }`
[INFO] [stdout] cac0be494569098e8d68b5f67e4f422037fd2778034bd11b7b01dd4c94a6d4e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 44e1f6f6bf5e9a80271ff6d7ae041b65a6c4995e8b35eab4cda3107b366fabef
[INFO] running `Command { std: "docker" "start" "-a" "44e1f6f6bf5e9a80271ff6d7ae041b65a6c4995e8b35eab4cda3107b366fabef", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling rstest_macros v0.19.0
[INFO] [stderr]     Checking petgraph v0.6.5
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking slotgraph v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling regex v1.10.6
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking rstest v0.19.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.86s
[INFO] running `Command { std: "docker" "inspect" "44e1f6f6bf5e9a80271ff6d7ae041b65a6c4995e8b35eab4cda3107b366fabef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44e1f6f6bf5e9a80271ff6d7ae041b65a6c4995e8b35eab4cda3107b366fabef", kill_on_drop: false }`
[INFO] [stdout] 44e1f6f6bf5e9a80271ff6d7ae041b65a6c4995e8b35eab4cda3107b366fabef