[INFO] fetching crate mls-rs-core 0.19.1...
[INFO] checking mls-rs-core-0.19.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate mls-rs-core 0.19.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate mls-rs-core 0.19.1 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 mls-rs-core 0.19.1
[INFO] finished tweaking crates.io crate mls-rs-core 0.19.1
[INFO] tweaked toml for crates.io crate mls-rs-core 0.19.1 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 109 packages to latest compatible versions
[INFO] [stderr]       Adding ext-trait v1.0.1 (available: v2.0.0)
[INFO] [stderr]       Adding ext-trait-proc_macros v1.0.1 (available: v2.0.0)
[INFO] [stderr]       Adding extension-traits v1.0.1 (available: v2.0.0)
[INFO] [stderr]       Adding heck v0.4.1 (available: v0.5.0)
[INFO] [stderr]       Adding itertools v0.12.1 (available: v0.13.0)
[INFO] [stderr]       Adding macro_rules_attribute v0.1.3 (available: v0.2.0)
[INFO] [stderr]       Adding macro_rules_attribute-proc_macro v0.1.3 (available: v0.2.0)
[INFO] [stderr]       Adding prettyplease v0.1.25 (available: v0.2.22)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.77)
[INFO] [stderr]       Adding uninit v0.5.1 (available: v0.6.2)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding with_builtin_macros v0.0.3 (available: v0.1.0)
[INFO] [stderr]       Adding with_builtin_macros-proc_macros v0.0.3 (available: v0.1.0)
[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-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0233c41319cfaeb23dbe65718141d786121b7f5231f04afdb587654f3b0cb70
[INFO] running `Command { std: "docker" "start" "-a" "a0233c41319cfaeb23dbe65718141d786121b7f5231f04afdb587654f3b0cb70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0233c41319cfaeb23dbe65718141d786121b7f5231f04afdb587654f3b0cb70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0233c41319cfaeb23dbe65718141d786121b7f5231f04afdb587654f3b0cb70", kill_on_drop: false }`
[INFO] [stdout] a0233c41319cfaeb23dbe65718141d786121b7f5231f04afdb587654f3b0cb70
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e19b78338d1daf43df8c274d8194cff218bae0cd063b87e8f34d9c2ba7f63764
[INFO] running `Command { std: "docker" "start" "-a" "e19b78338d1daf43df8c274d8194cff218bae0cd063b87e8f34d9c2ba7f63764", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling maybe-async v0.2.10
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling mls-rs-codec-derive v0.1.1
[INFO] [stderr]     Checking mls-rs-codec v0.5.3
[INFO] [stderr]     Checking mls-rs-core v0.19.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.01s
[INFO] running `Command { std: "docker" "inspect" "e19b78338d1daf43df8c274d8194cff218bae0cd063b87e8f34d9c2ba7f63764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e19b78338d1daf43df8c274d8194cff218bae0cd063b87e8f34d9c2ba7f63764", kill_on_drop: false }`
[INFO] [stdout] e19b78338d1daf43df8c274d8194cff218bae0cd063b87e8f34d9c2ba7f63764