[INFO] fetching crate compacts-dict 0.2.1...
[INFO] testing compacts-dict-0.2.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate compacts-dict 0.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate compacts-dict 0.2.1 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] started tweaking crates.io crate compacts-dict 0.2.1
[INFO] finished tweaking crates.io crate compacts-dict 0.2.1
[INFO] tweaked toml for crates.io crate compacts-dict 0.2.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] f48e56ccbc1701091d99043978e7e125df924e1928cf6d7e5082b4904588cb45
[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" "f48e56ccbc1701091d99043978e7e125df924e1928cf6d7e5082b4904588cb45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f48e56ccbc1701091d99043978e7e125df924e1928cf6d7e5082b4904588cb45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f48e56ccbc1701091d99043978e7e125df924e1928cf6d7e5082b4904588cb45", kill_on_drop: false }`
[INFO] [stdout] f48e56ccbc1701091d99043978e7e125df924e1928cf6d7e5082b4904588cb45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2a2e9e1287b0ce225467e0dff3f46d7ec456a22fb02840d85e24f2e368f49a86
[INFO] running `Command { std: "docker" "start" "-a" "2a2e9e1287b0ce225467e0dff3f46d7ec456a22fb02840d85e24f2e368f49a86", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling compacts-prim v0.2.1
[INFO] [stderr]    Compiling itertools v0.6.5
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[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/compacts-prim-0.2.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(i128_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `i128_type` has been stable since 1.26.0 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 `compacts-prim` 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" "2a2e9e1287b0ce225467e0dff3f46d7ec456a22fb02840d85e24f2e368f49a86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a2e9e1287b0ce225467e0dff3f46d7ec456a22fb02840d85e24f2e368f49a86", kill_on_drop: false }`
[INFO] [stdout] 2a2e9e1287b0ce225467e0dff3f46d7ec456a22fb02840d85e24f2e368f49a86