[INFO] cloning repository https://github.com/miroslavchakarov/smart-messroom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/miroslavchakarov/smart-messroom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiroslavchakarov%2Fsmart-messroom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiroslavchakarov%2Fsmart-messroom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f49297b6e01bcc103917d94863e107e71976afbb
[INFO] testing miroslavchakarov/smart-messroom against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiroslavchakarov%2Fsmart-messroom" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/miroslavchakarov/smart-messroom on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/miroslavchakarov/smart-messroom
[INFO] finished tweaking git repo https://github.com/miroslavchakarov/smart-messroom
[INFO] tweaked toml for git repo https://github.com/miroslavchakarov/smart-messroom written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/miroslavchakarov/smart-messroom already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sysfs_gpio v0.5.4
[INFO] [stderr]   Downloaded embedded-hal v0.2.7
[INFO] [stderr]   Downloaded semver v0.1.20
[INFO] [stderr]   Downloaded boolean_expression v0.3.11
[INFO] [stderr]   Downloaded bitmatch v0.1.1
[INFO] [stderr]   Downloaded syn v1.0.90
[INFO] [stderr]   Downloaded i2cdev v0.4.4
[INFO] [stderr]   Downloaded rustc_version v0.1.7
[INFO] [stderr]   Downloaded rppal v0.12.0
[INFO] [stderr]   Downloaded semver v1.0.7
[INFO] [stderr]   Downloaded bitflags v0.4.0
[INFO] [stderr]   Downloaded nix v0.6.0
[INFO] [stderr]   Downloaded spidev v0.3.0
[INFO] [stderr]   Downloaded linux-embedded-hal v0.2.2
[INFO] [stderr]   Downloaded hx711_spi v0.3.1
[INFO] [stderr]   Downloaded hd44780-hal v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2abd6caffd5f05ec4f2e2312a87814abe43688f66df8def34c632ee8a820cc03
[INFO] running `Command { std: "docker" "start" "-a" "2abd6caffd5f05ec4f2e2312a87814abe43688f66df8def34c632ee8a820cc03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2abd6caffd5f05ec4f2e2312a87814abe43688f66df8def34c632ee8a820cc03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2abd6caffd5f05ec4f2e2312a87814abe43688f66df8def34c632ee8a820cc03", kill_on_drop: false }`
[INFO] [stdout] 2abd6caffd5f05ec4f2e2312a87814abe43688f66df8def34c632ee8a820cc03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 375dbd4e06beb359dd4c73e40b624b506d48fd74ab3e6db19ed56bd6cb24c785
[INFO] running `Command { std: "docker" "start" "-a" "375dbd4e06beb359dd4c73e40b624b506d48fd74ab3e6db19ed56bd6cb24c785", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling semver v1.0.7
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling boolean_expression v0.3.11
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling hd44780-hal v0.2.1
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling rppal v0.12.0
[INFO] [stderr]    Compiling spidev v0.3.0
[INFO] [stderr]    Compiling i2cdev v0.4.4
[INFO] [stderr]    Compiling sysfs_gpio v0.5.4
[INFO] [stderr]    Compiling linux-embedded-hal v0.2.2
[INFO] [stderr]    Compiling bitmatch v0.1.1
[INFO] [stderr]    Compiling hx711_spi v0.3.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/hx711_spi-0.3.1/src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #![feature(negative_impls)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hx711_spi` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "375dbd4e06beb359dd4c73e40b624b506d48fd74ab3e6db19ed56bd6cb24c785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "375dbd4e06beb359dd4c73e40b624b506d48fd74ab3e6db19ed56bd6cb24c785", kill_on_drop: false }`
[INFO] [stdout] 375dbd4e06beb359dd4c73e40b624b506d48fd74ab3e6db19ed56bd6cb24c785