[INFO] fetching crate tracing-rfc-5424 0.1.2...
[INFO] checking tracing-rfc-5424-0.1.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate tracing-rfc-5424 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate tracing-rfc-5424 0.1.2 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 tracing-rfc-5424 0.1.2
[INFO] finished tweaking crates.io crate tracing-rfc-5424 0.1.2
[INFO] tweaked toml for crates.io crate tracing-rfc-5424 0.1.2 written to /workspace/builds/worker-7-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 75 packages to latest compatible versions
[INFO] [stderr]       Adding hostname v0.3.1 (available: v0.4.0)
[INFO] [stderr]       Adding local-ip-address v0.4.9 (available: v0.6.3)
[INFO] [stderr]       Adding neli v0.5.3 (available: v0.6.4)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (available: v0.50.1)
[INFO] [stderr]       Adding windows-core v0.52.0 (available: v0.58.0)
[INFO] [stderr]       Adding windows-sys v0.42.0 (available: v0.59.0)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a80b3dc5ad688589a8b2d541e8c730cb949d3c404fce65abe1738c9aaf091e72
[INFO] running `Command { std: "docker" "start" "-a" "a80b3dc5ad688589a8b2d541e8c730cb949d3c404fce65abe1738c9aaf091e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a80b3dc5ad688589a8b2d541e8c730cb949d3c404fce65abe1738c9aaf091e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a80b3dc5ad688589a8b2d541e8c730cb949d3c404fce65abe1738c9aaf091e72", kill_on_drop: false }`
[INFO] [stdout] a80b3dc5ad688589a8b2d541e8c730cb949d3c404fce65abe1738c9aaf091e72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3e6335ec2deac341ef27b2e24411c0284fd486381f25e2b5910a5707017caf1a
[INFO] running `Command { std: "docker" "start" "-a" "3e6335ec2deac341ef27b2e24411c0284fd486381f25e2b5910a5707017caf1a", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking gimli v0.31.0
[INFO] [stderr]     Checking adler2 v2.0.0
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking bytes v1.7.2
[INFO] [stderr]     Checking neli v0.5.3
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]     Checking object v0.36.4
[INFO] [stderr]     Checking local-ip-address v0.4.9
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking addr2line v0.24.1
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking tracing-rfc-5424 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.92s
[INFO] running `Command { std: "docker" "inspect" "3e6335ec2deac341ef27b2e24411c0284fd486381f25e2b5910a5707017caf1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e6335ec2deac341ef27b2e24411c0284fd486381f25e2b5910a5707017caf1a", kill_on_drop: false }`
[INFO] [stdout] 3e6335ec2deac341ef27b2e24411c0284fd486381f25e2b5910a5707017caf1a