[INFO] fetching crate tectonic_io_base 0.4.3...
[INFO] checking tectonic_io_base-0.4.3 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate tectonic_io_base 0.4.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate tectonic_io_base 0.4.3 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 tectonic_io_base 0.4.3
[INFO] finished tweaking crates.io crate tectonic_io_base 0.4.3
[INFO] tweaked toml for crates.io crate tectonic_io_base 0.4.3 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 63 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v1.1.0)
[INFO] [stderr]       Adding jni-sys v0.3.0 (available: v0.4.0)
[INFO] [stderr]       Adding windows-sys v0.45.0 (available: v0.59.0)
[INFO] [stderr]       Adding windows-targets v0.42.2 (available: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.42.2 (available: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.42.2 (available: v0.52.6)
[INFO] [stderr]       Adding windows_i686_gnu v0.42.2 (available: v0.52.6)
[INFO] [stderr]       Adding windows_i686_msvc v0.42.2 (available: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.42.2 (available: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.42.2 (available: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.42.2 (available: v0.52.6)
[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] [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] 27a71a803e0f7286a5a6464187a4772dd0b74e4f7e3b4d6d4b80a356d7cd0537
[INFO] running `Command { std: "docker" "start" "-a" "27a71a803e0f7286a5a6464187a4772dd0b74e4f7e3b4d6d4b80a356d7cd0537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27a71a803e0f7286a5a6464187a4772dd0b74e4f7e3b4d6d4b80a356d7cd0537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27a71a803e0f7286a5a6464187a4772dd0b74e4f7e3b4d6d4b80a356d7cd0537", kill_on_drop: false }`
[INFO] [stdout] 27a71a803e0f7286a5a6464187a4772dd0b74e4f7e3b4d6d4b80a356d7cd0537
[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] a5ede6b1c8b18df4f376c5ef44ea877dc68789a8b0499c5056f28394464521a9
[INFO] running `Command { std: "docker" "start" "-a" "a5ede6b1c8b18df4f376c5ef44ea877dc68789a8b0499c5056f28394464521a9", kill_on_drop: false }`
[INFO] [stderr]     Checking xdg v2.5.2
[INFO] [stderr]    Compiling libz-sys v1.1.20
[INFO] [stderr]     Checking tectonic_errors v0.2.1
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking tectonic_status_base v0.2.1
[INFO] [stderr]     Checking app_dirs2 v2.5.5
[INFO] [stderr]     Checking flate2 v1.0.33
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]     Checking thiserror v1.0.64
[INFO] [stderr]     Checking tectonic_io_base v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.01s
[INFO] running `Command { std: "docker" "inspect" "a5ede6b1c8b18df4f376c5ef44ea877dc68789a8b0499c5056f28394464521a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ede6b1c8b18df4f376c5ef44ea877dc68789a8b0499c5056f28394464521a9", kill_on_drop: false }`
[INFO] [stdout] a5ede6b1c8b18df4f376c5ef44ea877dc68789a8b0499c5056f28394464521a9