[INFO] fetching crate ergo 0.0.5...
[INFO] checking ergo-0.0.5 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate ergo 0.0.5 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate ergo 0.0.5 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ergo 0.0.5
[INFO] finished tweaking crates.io crate ergo 0.0.5
[INFO] tweaked toml for crates.io crate ergo 0.0.5 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 110 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v0.6.10 (available: v1.1.3)
[INFO] [stderr]       Adding arrayvec v0.4.12 (available: v0.7.6)
[INFO] [stderr]       Adding cfg-if v0.1.10 (available: v1.0.0)
[INFO] [stderr]       Adding crossbeam-channel v0.1.3 (available: v0.5.13)
[INFO] [stderr]       Adding crossbeam-epoch v0.4.3 (available: v0.9.18)
[INFO] [stderr]       Adding crossbeam-utils v0.3.2 (available: v0.8.20)
[INFO] [stderr]       Adding dirs v2.0.2 (available: v5.0.1)
[INFO] [stderr]       Adding dirs-sys v0.3.7 (available: v0.4.1)
[INFO] [stderr]       Adding dtoa v0.4.8 (available: v1.0.9)
[INFO] [stderr]       Adding erased-serde v0.3.31 (available: v0.4.5)
[INFO] [stderr]       Adding glob v0.2.11 (available: v0.3.1)
[INFO] [stderr]       Adding hashbrown v0.12.3 (available: v0.14.5)
[INFO] [stderr]       Adding heck v0.3.3 (available: v0.5.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (available: v0.4.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.5.0)
[INFO] [stderr]       Adding itertools v0.7.11 (available: v0.13.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
[INFO] [stderr]       Adding memoffset v0.2.1 (available: v0.9.1)
[INFO] [stderr]       Adding owning_ref v0.3.3 (available: v0.4.1)
[INFO] [stderr]       Adding parking_lot v0.5.5 (available: v0.12.3)
[INFO] [stderr]       Adding parking_lot_core v0.2.14 (available: v0.9.10)
[INFO] [stderr]       Adding path_abs v0.4.1 (available: v0.5.1)
[INFO] [stderr]       Adding quote v0.3.15 (available: v1.0.37)
[INFO] [stderr]       Adding rand v0.4.6 (available: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (available: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (available: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (available: v0.8.3)
[INFO] [stderr]       Adding regex v0.2.11 (available: v1.10.6)
[INFO] [stderr]       Adding regex-syntax v0.5.6 (available: v0.8.4)
[INFO] [stderr]       Adding remove_dir_all v0.5.3 (available: v0.8.4)
[INFO] [stderr]       Adding ron v0.1.7 (available: v0.8.1)
[INFO] [stderr]       Adding scopeguard v0.3.3 (available: v1.2.0)
[INFO] [stderr]       Adding serde_yaml v0.7.5 (available: v0.9.34+deprecated)
[INFO] [stderr]       Adding shellexpand v1.1.1 (available: v3.1.0)
[INFO] [stderr]       Adding smallvec v0.6.14 (available: v1.13.2)
[INFO] [stderr]       Adding syn v0.11.11 (available: v2.0.79)
[INFO] [stderr]       Adding thread_local v0.3.6 (available: v1.1.8)
[INFO] [stderr]       Adding toml v0.4.10 (available: v0.8.19)
[INFO] [stderr]       Adding ucd-util v0.1.10 (available: v0.2.1)
[INFO] [stderr]       Adding unicode-xid v0.0.4 (available: v0.2.6)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b26f22334d8844b7a5ed32f561bfcb1e575f543d948086796bf9da25cbce977f
[INFO] running `Command { std: "docker" "start" "-a" "b26f22334d8844b7a5ed32f561bfcb1e575f543d948086796bf9da25cbce977f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b26f22334d8844b7a5ed32f561bfcb1e575f543d948086796bf9da25cbce977f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b26f22334d8844b7a5ed32f561bfcb1e575f543d948086796bf9da25cbce977f", kill_on_drop: false }`
[INFO] [stdout] b26f22334d8844b7a5ed32f561bfcb1e575f543d948086796bf9da25cbce977f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e0937932ac73fe6c4e993679788b32e3c834f8334984b695040984860d8b71f
[INFO] running `Command { std: "docker" "start" "-a" "8e0937932ac73fe6c4e993679788b32e3c834f8334984b695040984860d8b71f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking std_prelude v0.2.12
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking ucd-util v0.1.10
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking filetime v0.2.25
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking stfu8 v0.2.7
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking utf8-ranges v1.0.5
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking shellexpand v1.1.1
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking taken v0.1.1
[INFO] [stderr]     Checking ergo_sys v0.0.1
[INFO] [stderr]     Checking heck v0.3.3
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]     Checking rustix v0.38.37
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]     Checking crossbeam-channel v0.1.3
[INFO] [stderr]     Checking ergo_sync v0.1.0
[INFO] [stderr]    Compiling configure_derive v0.1.1
[INFO] [stderr]     Checking xattr v1.3.1
[INFO] [stderr]     Checking tar v0.4.42
[INFO] [stderr]     Checking erased-serde v0.3.31
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking indexmap v1.9.3
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking ron v0.1.7
[INFO] [stderr]     Checking path_abs v0.4.1
[INFO] [stderr]     Checking ergo_std v0.0.3
[INFO] [stderr]     Checking ergo_fs v0.2.0
[INFO] [stderr]     Checking configure v0.1.1
[INFO] [stderr]     Checking ergo_config v0.0.1
[INFO] [stderr]     Checking ergo v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.91s
[INFO] running `Command { std: "docker" "inspect" "8e0937932ac73fe6c4e993679788b32e3c834f8334984b695040984860d8b71f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e0937932ac73fe6c4e993679788b32e3c834f8334984b695040984860d8b71f", kill_on_drop: false }`
[INFO] [stdout] 8e0937932ac73fe6c4e993679788b32e3c834f8334984b695040984860d8b71f