[INFO] cloning repository https://github.com/robinhundt/light-control
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robinhundt/light-control" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinhundt%2Flight-control", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinhundt%2Flight-control'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf4be49e15d7c982bec6ac81cf403cdbd0286f7f
[INFO] checking robinhundt/light-control against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinhundt%2Flight-control" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robinhundt/light-control on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robinhundt/light-control
[INFO] finished tweaking git repo https://github.com/robinhundt/light-control
[INFO] tweaked toml for git repo https://github.com/robinhundt/light-control written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/robinhundt/light-control already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git submodule `https://github.com/eclipse/paho.mqtt.c.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cmake v0.1.44
[INFO] [stderr]   Downloaded futures-timer v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94f7e0a1135d636edb32efa26b1693bdd5fb89af791033974fedd185fde728ac
[INFO] running `Command { std: "docker" "start" "-a" "94f7e0a1135d636edb32efa26b1693bdd5fb89af791033974fedd185fde728ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94f7e0a1135d636edb32efa26b1693bdd5fb89af791033974fedd185fde728ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94f7e0a1135d636edb32efa26b1693bdd5fb89af791033974fedd185fde728ac", kill_on_drop: false }`
[INFO] [stdout] 94f7e0a1135d636edb32efa26b1693bdd5fb89af791033974fedd185fde728ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90372e46a2268016914bb5d897e0724643f1547e1cd30e55e5c253a231f4bad1
[INFO] running `Command { std: "docker" "start" "-a" "90372e46a2268016914bb5d897e0724643f1547e1cd30e55e5c253a231f4bad1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling paho-mqtt-sys v0.4.0 (https://github.com/eclipse/paho.mqtt.rust.git#976e7ea5)
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking os_str_bytes v2.3.2
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-timer v0.3.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking paho-mqtt v0.8.0 (https://github.com/eclipse/paho.mqtt.rust.git#976e7ea5)
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking light-control v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.58s
[INFO] running `Command { std: "docker" "inspect" "90372e46a2268016914bb5d897e0724643f1547e1cd30e55e5c253a231f4bad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90372e46a2268016914bb5d897e0724643f1547e1cd30e55e5c253a231f4bad1", kill_on_drop: false }`
[INFO] [stdout] 90372e46a2268016914bb5d897e0724643f1547e1cd30e55e5c253a231f4bad1