[INFO] cloning repository https://github.com/SnakeSolid/rust-temperature-host
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SnakeSolid/rust-temperature-host" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnakeSolid%2Frust-temperature-host", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnakeSolid%2Frust-temperature-host'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55ca9c3c4bb52875489b621b05f824c79dc0ed25
[INFO] checking SnakeSolid/rust-temperature-host against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnakeSolid%2Frust-temperature-host" "/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/SnakeSolid/rust-temperature-host 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/SnakeSolid/rust-temperature-host
[INFO] finished tweaking git repo https://github.com/SnakeSolid/rust-temperature-host
[INFO] tweaked toml for git repo https://github.com/SnakeSolid/rust-temperature-host written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SnakeSolid/rust-temperature-host 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 crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.70
[INFO] [stderr]   Downloaded time v0.2.25
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.70
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.70
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.70
[INFO] [stderr]   Downloaded standback v0.2.14
[INFO] [stderr]   Downloaded time-macros-impl v0.1.1
[INFO] [stderr]   Downloaded unsafe-any v0.4.2
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded modifier v0.1.0
[INFO] [stderr]   Downloaded sequence_trie v0.3.6
[INFO] [stderr]   Downloaded mime_guess v1.8.8
[INFO] [stderr]   Downloaded thread_local v1.1.2
[INFO] [stderr]   Downloaded env_logger v0.8.2
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded serialport v4.0.0
[INFO] [stderr]   Downloaded nix v0.16.1
[INFO] [stderr]   Downloaded regex v1.4.3
[INFO] [stderr]   Downloaded regex-syntax v0.6.22
[INFO] [stderr]   Downloaded libc v0.2.84
[INFO] [stderr]   Downloaded unicode-normalization v0.1.16
[INFO] [stderr]   Downloaded serde v1.0.123
[INFO] [stderr]   Downloaded serde_json v1.0.61
[INFO] [stderr]   Downloaded bumpalo v3.5.0
[INFO] [stderr]   Downloaded serde_derive v1.0.123
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.70
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded iron v0.6.1
[INFO] [stderr]   Downloaded mount v0.4.0
[INFO] [stderr]   Downloaded tinyvec v1.1.1
[INFO] [stderr]   Downloaded structopt v0.2.18
[INFO] [stderr]   Downloaded structopt-derive v0.2.18
[INFO] [stderr]   Downloaded plugin v0.2.6
[INFO] [stderr]   Downloaded typemap v0.3.3
[INFO] [stderr]   Downloaded staticfile v0.5.0
[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] 256b0008a0e864c83292fac90e87393f063e5f389b194b0f513cf047a1407fae
[INFO] running `Command { std: "docker" "start" "-a" "256b0008a0e864c83292fac90e87393f063e5f389b194b0f513cf047a1407fae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "256b0008a0e864c83292fac90e87393f063e5f389b194b0f513cf047a1407fae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "256b0008a0e864c83292fac90e87393f063e5f389b194b0f513cf047a1407fae", kill_on_drop: false }`
[INFO] [stdout] 256b0008a0e864c83292fac90e87393f063e5f389b194b0f513cf047a1407fae
[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] 51a6bc389ef7118dd52405abf2064c867a02a9547216d445b47884c57c08f920
[INFO] running `Command { std: "docker" "start" "-a" "51a6bc389ef7118dd52405abf2064c867a02a9547216d445b47884c57c08f920", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]    Compiling standback v0.2.14
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking sequence_trie v0.3.6
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking unicode-normalization v0.1.16
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking mount v0.4.0
[INFO] [stderr]     Checking staticfile v0.5.0
[INFO] [stderr]     Checking serialport v4.0.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking temperature-host v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.06s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "51a6bc389ef7118dd52405abf2064c867a02a9547216d445b47884c57c08f920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51a6bc389ef7118dd52405abf2064c867a02a9547216d445b47884c57c08f920", kill_on_drop: false }`
[INFO] [stdout] 51a6bc389ef7118dd52405abf2064c867a02a9547216d445b47884c57c08f920