[INFO] cloning repository https://github.com/DrunkenInfant/rpi-moisture-sensor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DrunkenInfant/rpi-moisture-sensor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrunkenInfant%2Frpi-moisture-sensor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrunkenInfant%2Frpi-moisture-sensor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba2b2037b0e1a76a2da562b5b3848007c55ef168
[INFO] checking DrunkenInfant/rpi-moisture-sensor against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrunkenInfant%2Frpi-moisture-sensor" "/workspace/builds/worker-77/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-77/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DrunkenInfant/rpi-moisture-sensor on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DrunkenInfant/rpi-moisture-sensor
[INFO] finished tweaking git repo https://github.com/DrunkenInfant/rpi-moisture-sensor
[INFO] tweaked toml for git repo https://github.com/DrunkenInfant/rpi-moisture-sensor written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate git repo https://github.com/DrunkenInfant/rpi-moisture-sensor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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 cookie-factory v0.2.4
[INFO] [stderr]   Downloaded arc-swap v0.3.7
[INFO] [stderr]   Downloaded signal-hook v0.1.7
[INFO] [stderr]   Downloaded amq-protocol-codegen v1.0.1
[INFO] [stderr]   Downloaded amq-protocol v1.0.0
[INFO] [stderr]   Downloaded amq-protocol-types v1.0.0
[INFO] [stderr]   Downloaded lapin-async v0.15.0
[INFO] [stderr]   Downloaded lapin-futures v0.15.0
[INFO] [stderr]   Downloaded sasl v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40d47e378699e48f689a24983468167ad9402d1054e1b21e237952e6ae4f1b5f
[INFO] running `Command { std: "docker" "start" "-a" "40d47e378699e48f689a24983468167ad9402d1054e1b21e237952e6ae4f1b5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40d47e378699e48f689a24983468167ad9402d1054e1b21e237952e6ae4f1b5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40d47e378699e48f689a24983468167ad9402d1054e1b21e237952e6ae4f1b5f", kill_on_drop: false }`
[INFO] [stdout] 40d47e378699e48f689a24983468167ad9402d1054e1b21e237952e6ae4f1b5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0ae28f215345d2f5498b97c7bd212c7e6fbaef09681762e5455eacb411af081
[INFO] running `Command { std: "docker" "start" "-a" "c0ae28f215345d2f5498b97c7bd212c7e6fbaef09681762e5455eacb411af081", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling serde v1.0.84
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling cookie-factory v0.2.4
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]     Checking arc-swap v0.3.7
[INFO] [stderr]     Checking tock-registers v0.3.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.3
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tock-registers-0.3.0/src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[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/tock-registers-0.3.0/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr] error: could not compile `tock-registers` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c0ae28f215345d2f5498b97c7bd212c7e6fbaef09681762e5455eacb411af081", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0ae28f215345d2f5498b97c7bd212c7e6fbaef09681762e5455eacb411af081", kill_on_drop: false }`
[INFO] [stdout] c0ae28f215345d2f5498b97c7bd212c7e6fbaef09681762e5455eacb411af081
