[INFO] fetching crate bft-core 0.1.0...
[INFO] checking bft-core-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate bft-core 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate bft-core 0.1.0 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 bft-core 0.1.0
[INFO] finished tweaking crates.io crate bft-core 0.1.0
[INFO] tweaked toml for crates.io crate bft-core 0.1.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 46 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.6.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (available: v1.0.0)
[INFO] [stderr]       Adding cloudabi v0.0.3 (available: v0.1.0)
[INFO] [stderr]       Adding crossbeam-channel v0.3.9 (available: v0.5.13)
[INFO] [stderr]       Adding crossbeam-utils v0.6.6 (available: v0.8.20)
[INFO] [stderr]       Adding env_logger v0.6.2 (available: v0.11.5)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (available: v0.4.0)
[INFO] [stderr]       Adding humantime v1.3.0 (available: v2.1.0)
[INFO] [stderr]       Adding quick-error v1.2.3 (available: v2.0.1)
[INFO] [stderr]       Adding rand v0.5.6 (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] 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] 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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 671bcabe9a322a96533a7adc8fb5ed1e2fe6be176fbca92ca5f83ca43df796e1
[INFO] running `Command { std: "docker" "start" "-a" "671bcabe9a322a96533a7adc8fb5ed1e2fe6be176fbca92ca5f83ca43df796e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "671bcabe9a322a96533a7adc8fb5ed1e2fe6be176fbca92ca5f83ca43df796e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "671bcabe9a322a96533a7adc8fb5ed1e2fe6be176fbca92ca5f83ca43df796e1", kill_on_drop: false }`
[INFO] [stdout] 671bcabe9a322a96533a7adc8fb5ed1e2fe6be176fbca92ca5f83ca43df796e1
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8c15c7840bdcae354c6f0e8753f79f62697d39637918f7ee6fe9b344ab3a3d5
[INFO] running `Command { std: "docker" "start" "-a" "b8c15c7840bdcae354c6f0e8753f79f62697d39637918f7ee6fe9b344ab3a3d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking min-max-heap v1.3.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking bft-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated type `error` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:84:10
[INFO] [stdout]    |
[INFO] [stdout] 84 |     type error: ::std::fmt::Debug;
[INFO] [stdout]    |          ^^^^^ help: convert the identifier to upper camel case: `Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated type `error` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:84:10
[INFO] [stdout]    |
[INFO] [stdout] 84 |     type error: ::std::fmt::Debug;
[INFO] [stdout]    |          ^^^^^ help: convert the identifier to upper camel case: `Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.81s
[INFO] running `Command { std: "docker" "inspect" "b8c15c7840bdcae354c6f0e8753f79f62697d39637918f7ee6fe9b344ab3a3d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c15c7840bdcae354c6f0e8753f79f62697d39637918f7ee6fe9b344ab3a3d5", kill_on_drop: false }`
[INFO] [stdout] b8c15c7840bdcae354c6f0e8753f79f62697d39637918f7ee6fe9b344ab3a3d5