[INFO] fetching crate iter-tuple 0.3.8...
[INFO] checking iter-tuple-0.3.8 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate iter-tuple 0.3.8 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate iter-tuple 0.3.8 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 iter-tuple 0.3.8
[INFO] finished tweaking crates.io crate iter-tuple 0.3.8
[INFO] tweaked toml for crates.io crate iter-tuple 0.3.8 written to /workspace/builds/worker-0-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 4 packages to latest compatible versions
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 25c2c772c4a0866bc02c52cb3c3a6447f3dd0fac31c983f5c9db4319b6b9db90
[INFO] running `Command { std: "docker" "start" "-a" "25c2c772c4a0866bc02c52cb3c3a6447f3dd0fac31c983f5c9db4319b6b9db90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25c2c772c4a0866bc02c52cb3c3a6447f3dd0fac31c983f5c9db4319b6b9db90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25c2c772c4a0866bc02c52cb3c3a6447f3dd0fac31c983f5c9db4319b6b9db90", kill_on_drop: false }`
[INFO] [stdout] 25c2c772c4a0866bc02c52cb3c3a6447f3dd0fac31c983f5c9db4319b6b9db90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 43b4c9038fa52bb242c13dd93742e429fdae0be1addddcae063507d61bcd6d9d
[INFO] running `Command { std: "docker" "start" "-a" "43b4c9038fa52bb242c13dd93742e429fdae0be1addddcae063507d61bcd6d9d", kill_on_drop: false }`
[INFO] [stderr]     Checking iter-tuple v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "43b4c9038fa52bb242c13dd93742e429fdae0be1addddcae063507d61bcd6d9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43b4c9038fa52bb242c13dd93742e429fdae0be1addddcae063507d61bcd6d9d", kill_on_drop: false }`
[INFO] [stdout] 43b4c9038fa52bb242c13dd93742e429fdae0be1addddcae063507d61bcd6d9d