[INFO] cloning repository https://github.com/roblabla42/KFS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roblabla42/KFS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froblabla42%2FKFS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froblabla42%2FKFS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c42cf3f2efe2c3e96510200c78b5c12e2acea006
[INFO] testing roblabla42/KFS against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froblabla42%2FKFS" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/roblabla42/KFS 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-0/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/roblabla42/KFS
[INFO] finished tweaking git repo https://github.com/roblabla42/KFS
[INFO] tweaked toml for git repo https://github.com/roblabla42/KFS written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/roblabla42/KFS 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 68e5630288a68f49b7d1625cf1be63f1da178328830085dbf5158c3051948311
[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" "68e5630288a68f49b7d1625cf1be63f1da178328830085dbf5158c3051948311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68e5630288a68f49b7d1625cf1be63f1da178328830085dbf5158c3051948311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68e5630288a68f49b7d1625cf1be63f1da178328830085dbf5158c3051948311", kill_on_drop: false }`
[INFO] [stdout] 68e5630288a68f49b7d1625cf1be63f1da178328830085dbf5158c3051948311
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 84344e9448d730642b37b41ebecb6afea7dc14abd7432dbdc75b075aea525ef2
[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" "84344e9448d730642b37b41ebecb6afea7dc14abd7432dbdc75b075aea525ef2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.64 (https://github.com/sunriseos/libc.git?branch=sunrise#53c8be04)
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling wild v2.0.2
[INFO] [stderr]    Compiling data-encoding v2.1.2
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling bit_field v0.10.0
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.16
[INFO] [stderr]    Compiling static_assertions v0.3.3
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling hashbrown v0.5.0
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling pkg-config v0.3.16
[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/hashbrown-0.5.0/src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     feature(
[INFO] [stdout] 16 | |         alloc_layout_extra,
[INFO] [stdout] 17 | |         allocator_api,
[INFO] [stdout] 18 | |         ptr_offset_from,
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |         dropck_eyepatch
[INFO] [stdout] 22 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling ls v0.0.1 (/opt/rustwide/workdir/coreutils/src/ls)
[INFO] [stderr]    Compiling shred v0.0.1 (/opt/rustwide/workdir/coreutils/src/shred)
[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 `hashbrown` 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" "84344e9448d730642b37b41ebecb6afea7dc14abd7432dbdc75b075aea525ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84344e9448d730642b37b41ebecb6afea7dc14abd7432dbdc75b075aea525ef2", kill_on_drop: false }`
[INFO] [stdout] 84344e9448d730642b37b41ebecb6afea7dc14abd7432dbdc75b075aea525ef2