[INFO] cloning repository https://github.com/harmony-development/rucies
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/harmony-development/rucies" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharmony-development%2Frucies", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharmony-development%2Frucies'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f858d2dcfc547464329cbfb320bf8cddbdaca4d
[INFO] testing harmony-development/rucies against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharmony-development%2Frucies" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/harmony-development/rucies on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-3/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/harmony-development/rucies
[INFO] finished tweaking git repo https://github.com/harmony-development/rucies
[INFO] tweaked toml for git repo https://github.com/harmony-development/rucies written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/harmony-development/rucies already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8829e3e7de104ebb181d714433c184e36227c69f50b97d5b8573233027cb85cc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8829e3e7de104ebb181d714433c184e36227c69f50b97d5b8573233027cb85cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8829e3e7de104ebb181d714433c184e36227c69f50b97d5b8573233027cb85cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8829e3e7de104ebb181d714433c184e36227c69f50b97d5b8573233027cb85cc", kill_on_drop: false }`
[INFO] [stdout] 8829e3e7de104ebb181d714433c184e36227c69f50b97d5b8573233027cb85cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8215c342f4d7483eb06f4323af88cc0dc1d77f1b45d6d02cfbb63ba1341ed4c1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8215c342f4d7483eb06f4323af88cc0dc1d77f1b45d6d02cfbb63ba1341ed4c1", 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]    Compiling proc-macro2 v1.0.36
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[INFO] [stderr]    Compiling rayon v1.5.1
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[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling wayland-sys v0.29.4
[INFO] [stderr]    Compiling smithay-client-toolkit v0.15.3
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[INFO] [stderr]    Compiling heck v0.3.3
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[INFO] [stderr]    Compiling rustls-pemfile v0.2.1
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling async-lock v2.5.0
[INFO] [stderr]    Compiling raw-window-handle v0.4.2
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling sha1 v0.6.1
[INFO] [stderr]    Compiling deflate v1.0.0
[INFO] [stderr]    Compiling gif v0.11.3
[INFO] [stderr]    Compiling cfb v0.4.0
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[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling owned_ttf_parser v0.14.0
[INFO] [stderr]    Compiling rustls-native-certs v0.6.1
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling async-channel v1.6.1
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[INFO] [stderr]    Compiling async-broadcast v0.3.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling want v0.3.0
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[INFO] [stderr]    Compiling ab_glyph v0.2.13
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quick-xml v0.22.0
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[INFO] [stderr]    Compiling gl_generator v0.14.0
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[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling png v0.17.3
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling getrandom v0.2.5
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[INFO] [stderr]    Compiling num_cpus v1.13.1
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[INFO] [stderr]    Compiling memmap2 v0.3.1
[INFO] [stderr]    Compiling polling v2.2.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling time v0.3.7
[INFO] [stderr]    Compiling nix v0.22.3
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling wayland-scanner v0.29.4
[INFO] [stderr]    Compiling xcb v0.10.1
[INFO] [stderr]    Compiling prost-build v0.9.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
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[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
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[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling tiff v0.7.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling wayland-client v0.29.4
[INFO] [stderr]    Compiling wayland-protocols v0.29.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling webpki v0.22.0
[INFO] [stderr]    Compiling sct v0.7.0
[INFO] [stderr]    Compiling wayland-commons v0.29.4
[INFO] [stderr]    Compiling calloop v0.9.3
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[INFO] [stderr]    Compiling x11-clipboard v0.5.3
[INFO] [stderr]    Compiling wayland-cursor v0.29.4
[INFO] [stderr]    Compiling wayland-egl v0.29.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.19
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling prost-derive v0.9.0
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling bytemuck_derive v1.0.1
[INFO] [stderr]    Compiling enumflags2_derive v0.7.3
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling harmony_derive v0.1.3 (https://github.com/harmony-development/harmony_rust_sdk.git?branch=master#4aae84c9)
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling bytemuck v1.7.3
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling image v0.24.1 (https://github.com/image-rs/image.git?branch=master#060a41c4)
[INFO] [stderr]    Compiling pin-project v1.0.10
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling tracing v0.1.31
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling tungstenite v0.16.0
[INFO] [stderr]    Compiling prost v0.9.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.9
[INFO] [stderr]    Compiling zvariant_derive v3.1.2
[INFO] [stderr]    Compiling zbus_macros v2.1.1
[INFO] [stderr]    Compiling prost-types v0.9.0
[INFO] [stderr]    Compiling image_worker v0.1.0 (/opt/rustwide/workdir/image_worker)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> image_worker/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_else)]
[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 `image_worker` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8215c342f4d7483eb06f4323af88cc0dc1d77f1b45d6d02cfbb63ba1341ed4c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8215c342f4d7483eb06f4323af88cc0dc1d77f1b45d6d02cfbb63ba1341ed4c1", kill_on_drop: false }`
[INFO] [stdout] 8215c342f4d7483eb06f4323af88cc0dc1d77f1b45d6d02cfbb63ba1341ed4c1