[INFO] cloning repository https://github.com/hcsch/aoc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hcsch/aoc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhcsch%2Faoc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhcsch%2Faoc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 901bdb39da3d8728cbd595e8fa3c910b945efd34
[INFO] testing hcsch/aoc against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhcsch%2Faoc" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hcsch/aoc 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 git repo https://github.com/hcsch/aoc
[INFO] finished tweaking git repo https://github.com/hcsch/aoc
[INFO] tweaked toml for git repo https://github.com/hcsch/aoc written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/hcsch/aoc 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 7d68bbfafca7622a0775ecb56ee7339fc6237366273c29ecc7f2ee2396fecf13
[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" "7d68bbfafca7622a0775ecb56ee7339fc6237366273c29ecc7f2ee2396fecf13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d68bbfafca7622a0775ecb56ee7339fc6237366273c29ecc7f2ee2396fecf13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d68bbfafca7622a0775ecb56ee7339fc6237366273c29ecc7f2ee2396fecf13", kill_on_drop: false }`
[INFO] [stdout] 7d68bbfafca7622a0775ecb56ee7339fc6237366273c29ecc7f2ee2396fecf13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 0230d2c75a8188b800beb921c889dc3437f815a55c432bed5ec4ce81faf5b6ff
[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" "0230d2c75a8188b800beb921c889dc3437f815a55c432bed5ec4ce81faf5b6ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]    Compiling cgmath v0.18.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling array-init v2.0.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling matrixmultiply v0.3.2
[INFO] [stderr]    Compiling wyz v0.5.0
[INFO] [stderr]    Compiling os_str_bytes v4.2.0
[INFO] [stderr]    Compiling bitvec v1.0.0-rc1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ndarray v0.15.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling validator_types v0.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling validator_derive v0.14.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]    Compiling clap v3.0.0-beta.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling envy v0.4.2
[INFO] [stderr]    Compiling validator v0.14.0
[INFO] [stderr]    Compiling aoc-solutions v0.1.0 (/opt/rustwide/workdir/aoc-solutions)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> aoc-solutions/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bool_to_option, once_cell, int_abs_diff, array_windows, array_chunks)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> aoc-solutions/src/lib.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bool_to_option, once_cell, int_abs_diff, array_windows, array_chunks)]
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> aoc-solutions/src/lib.rs:1:39
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bool_to_option, once_cell, int_abs_diff, array_windows, array_chunks)]
[INFO] [stdout]   |                                       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> aoc-solutions/src/lib.rs:1:53
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bool_to_option, once_cell, int_abs_diff, array_windows, array_chunks)]
[INFO] [stdout]   |                                                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> aoc-solutions/src/lib.rs:1:68
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bool_to_option, once_cell, int_abs_diff, array_windows, array_chunks)]
[INFO] [stdout]   |                                                                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc-solutions` due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "0230d2c75a8188b800beb921c889dc3437f815a55c432bed5ec4ce81faf5b6ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0230d2c75a8188b800beb921c889dc3437f815a55c432bed5ec4ce81faf5b6ff", kill_on_drop: false }`
[INFO] [stdout] 0230d2c75a8188b800beb921c889dc3437f815a55c432bed5ec4ce81faf5b6ff