[INFO] fetching crate lobsterchat 0.4.2...
[INFO] checking lobsterchat-0.4.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate lobsterchat 0.4.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate lobsterchat 0.4.2 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 lobsterchat 0.4.2
[INFO] finished tweaking crates.io crate lobsterchat 0.4.2
[INFO] tweaked toml for crates.io crate lobsterchat 0.4.2 written to /workspace/builds/worker-2-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 66 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] [stderr]       Adding hashbrown v0.12.3 (available: v0.14.5)
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.5.0)
[INFO] [stderr]       Adding logos v0.12.1 (available: v0.14.2)
[INFO] [stderr]       Adding logos-derive v0.12.1 (available: v0.14.2)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (available: v0.8.4)
[INFO] [stderr]       Adding serde_with v2.3.3 (available: v3.9.0)
[INFO] [stderr]       Adding serde_with_macros v2.3.3 (available: v3.9.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.77)
[INFO] [stderr]       Adding windows-core v0.52.0 (available: v0.58.0)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3591c66fc7a3cddd8beb6a3142eebe5cbc4495b3271905bde01805ec10078787
[INFO] running `Command { std: "docker" "start" "-a" "3591c66fc7a3cddd8beb6a3142eebe5cbc4495b3271905bde01805ec10078787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3591c66fc7a3cddd8beb6a3142eebe5cbc4495b3271905bde01805ec10078787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3591c66fc7a3cddd8beb6a3142eebe5cbc4495b3271905bde01805ec10078787", kill_on_drop: false }`
[INFO] [stdout] 3591c66fc7a3cddd8beb6a3142eebe5cbc4495b3271905bde01805ec10078787
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 10fff2ef30e355e219866478a5135cc7dbe4d0f0eb6c42b6a7e74fd16f361d28
[INFO] running `Command { std: "docker" "start" "-a" "10fff2ef30e355e219866478a5135cc7dbe4d0f0eb6c42b6a7e74fd16f361d28", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling anyhow v1.0.89
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking ryu v1.0.18
[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 logos-derive v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]     Checking logos v0.12.1
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling serde_with_macros v2.3.3
[INFO] [stderr]     Checking uuid v1.10.0
[INFO] [stderr]     Checking serde_with v2.3.3
[INFO] [stderr]     Checking lobsterchat v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.36s
[INFO] running `Command { std: "docker" "inspect" "10fff2ef30e355e219866478a5135cc7dbe4d0f0eb6c42b6a7e74fd16f361d28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10fff2ef30e355e219866478a5135cc7dbe4d0f0eb6c42b6a7e74fd16f361d28", kill_on_drop: false }`
[INFO] [stdout] 10fff2ef30e355e219866478a5135cc7dbe4d0f0eb6c42b6a7e74fd16f361d28