[INFO] fetching crate coap-scroll-ring-server 0.2.0...
[INFO] checking coap-scroll-ring-server-0.2.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate coap-scroll-ring-server 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate coap-scroll-ring-server 0.2.0 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 coap-scroll-ring-server 0.2.0
[INFO] finished tweaking crates.io crate coap-scroll-ring-server 0.2.0
[INFO] tweaked toml for crates.io crate coap-scroll-ring-server 0.2.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 35 packages to latest compatible versions
[INFO] [stderr]       Adding embedded-io v0.4.0 (available: v0.6.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v1.1.0)
[INFO] [stderr]       Adding half v1.8.3 (available: v2.4.1)
[INFO] [stderr]       Adding minicbor v0.19.1 (available: v0.25.1)
[INFO] [stderr]       Adding minicbor v0.24.4 (available: v0.25.1)
[INFO] [stderr]       Adding ringbuf v0.3.3 (available: v0.4.6)
[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] 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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22869b6acab69ddc672c7e26f916d88c8f05a1fc043bcd3a3bb9a05061418b61
[INFO] running `Command { std: "docker" "start" "-a" "22869b6acab69ddc672c7e26f916d88c8f05a1fc043bcd3a3bb9a05061418b61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22869b6acab69ddc672c7e26f916d88c8f05a1fc043bcd3a3bb9a05061418b61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22869b6acab69ddc672c7e26f916d88c8f05a1fc043bcd3a3bb9a05061418b61", kill_on_drop: false }`
[INFO] [stdout] 22869b6acab69ddc672c7e26f916d88c8f05a1fc043bcd3a3bb9a05061418b61
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ded986c11b3f7cd8ac8ca887ffe1b6f7ffb2a574b5af688bc2e80fd2c0493073
[INFO] running `Command { std: "docker" "start" "-a" "ded986c11b3f7cd8ac8ca887ffe1b6f7ffb2a574b5af688bc2e80fd2c0493073", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling minicbor v0.19.1
[INFO] [stderr]    Compiling minicbor v0.24.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling portable-atomic v1.8.0
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking crc-catalog v2.4.0
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking coap-numbers v0.2.4
[INFO] [stderr]     Checking crc v3.2.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking embedded-io v0.4.0
[INFO] [stderr]     Checking ringbuf v0.3.3
[INFO] [stderr]    Compiling document-features v0.2.10
[INFO] [stderr]     Checking scroll-ring v0.1.2
[INFO] [stderr]     Checking coap-message v0.3.4
[INFO] [stderr]     Checking coap-message-utils v0.3.6
[INFO] [stderr]     Checking coap-handler v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking windowed-infinity v0.1.5
[INFO] [stderr]     Checking coap-handler-implementations v0.5.2
[INFO] [stderr]     Checking coap-scroll-ring-server v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.04s
[INFO] running `Command { std: "docker" "inspect" "ded986c11b3f7cd8ac8ca887ffe1b6f7ffb2a574b5af688bc2e80fd2c0493073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ded986c11b3f7cd8ac8ca887ffe1b6f7ffb2a574b5af688bc2e80fd2c0493073", kill_on_drop: false }`
[INFO] [stdout] ded986c11b3f7cd8ac8ca887ffe1b6f7ffb2a574b5af688bc2e80fd2c0493073