[INFO] fetching crate peermaps-ingest 1.0.2...
[INFO] testing peermaps-ingest-1.0.2 against 1.54.0 for beta-1.55-1
[INFO] extracting crate peermaps-ingest 1.0.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate peermaps-ingest 1.0.2 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate peermaps-ingest 1.0.2
[INFO] finished tweaking crates.io crate peermaps-ingest 1.0.2
[INFO] tweaked toml for crates.io crate peermaps-ingest 1.0.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate peermaps-ingest 1.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36529d4b3db7f4e4b3efe21ed1bd719764a85fb7a5c1e5133380e13dcc760144
[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" "36529d4b3db7f4e4b3efe21ed1bd719764a85fb7a5c1e5133380e13dcc760144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36529d4b3db7f4e4b3efe21ed1bd719764a85fb7a5c1e5133380e13dcc760144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36529d4b3db7f4e4b3efe21ed1bd719764a85fb7a5c1e5133380e13dcc760144", kill_on_drop: false }`
[INFO] [stdout] 36529d4b3db7f4e4b3efe21ed1bd719764a85fb7a5c1e5133380e13dcc760144
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15f15c8c7f74036f9beb5c091e892c061e1c6954764739b97e29fb84cf42cfce
[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" "15f15c8c7f74036f9beb5c091e892c061e1c6954764739b97e29fb84cf42cfce", kill_on_drop: false }`
[INFO] [stderr]    Compiling fastrand v1.4.1
[INFO] [stderr]    Compiling mkdirp v1.0.0
[INFO] [stderr]    Compiling desert v2.0.0
[INFO] [stderr]    Compiling earcutr v0.1.1
[INFO] [stderr]    Compiling osm-is-area v1.0.0
[INFO] [stderr]    Compiling db-key v0.0.5
[INFO] [stderr]    Compiling interleaved-ordered v0.1.1
[INFO] [stderr]    Compiling argmap v1.1.1
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling lru v0.6.5
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling signal-hook v0.3.9
[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/argmap-1.1.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extended_key_value_attributes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `extended_key_value_attributes` has been stable since 1.54.0 and no longer requires an attribute to enable
[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 `argmap`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/desert-2.0.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extended_key_value_attributes,backtrace)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `extended_key_value_attributes` has been stable since 1.54.0 and no longer requires an attribute to enable
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "15f15c8c7f74036f9beb5c091e892c061e1c6954764739b97e29fb84cf42cfce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f15c8c7f74036f9beb5c091e892c061e1c6954764739b97e29fb84cf42cfce", kill_on_drop: false }`
[INFO] [stdout] 15f15c8c7f74036f9beb5c091e892c061e1c6954764739b97e29fb84cf42cfce
