[INFO] cloning repository https://github.com/quininer/enc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quininer/enc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquininer%2Fenc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquininer%2Fenc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b1bd8ab8655bb65d0d81a30d54982a9b8b80abe
[INFO] testing quininer/enc against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquininer%2Fenc" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/quininer/enc on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/quininer/enc
[INFO] finished tweaking git repo https://github.com/quininer/enc
[INFO] tweaked toml for git repo https://github.com/quininer/enc written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/quininer/enc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ansi_term v0.9.0
[INFO] [stderr]   Downloaded termios v0.2.2
[INFO] [stderr]   Downloaded ansi_term v0.7.5
[INFO] [stderr]   Downloaded blake2-rfc v0.2.17
[INFO] [stderr]   Downloaded unicode-segmentation v0.1.3
[INFO] [stderr]   Downloaded vec_map v0.6.0
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.7
[INFO] [stderr]   Downloaded rand v0.3.15
[INFO] [stderr]   Downloaded libc v0.2.18
[INFO] [stderr]   Downloaded byteorder v0.5.3
[INFO] [stderr]   Downloaded sarkara v0.6.2
[INFO] [stderr]   Downloaded hc256 v0.1.4
[INFO] [stderr]   Downloaded strsim v0.5.2
[INFO] [stderr]   Downloaded unicode-width v0.1.3
[INFO] [stderr]   Downloaded ascon v0.1.3
[INFO] [stderr]   Downloaded clap v2.19.2
[INFO] [stderr]   Downloaded bitpack v0.1.0
[INFO] [stderr]   Downloaded constant_time_eq v0.1.2
[INFO] [stderr]   Downloaded tiny-keccak v1.1.1
[INFO] [stderr]   Downloaded newhope v0.1.5
[INFO] [stderr]   Downloaded blissb v0.1.0
[INFO] [stderr]   Downloaded term_size v0.2.1
[INFO] [stderr]   Downloaded interactor v0.1.1
[INFO] [stderr]   Downloaded seckey v0.2.5
[INFO] [stderr]   Downloaded memsec v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abb620715e077c9d654140f3ff5b5e6337b887964400f090fdabd807bd8382a0
[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" "abb620715e077c9d654140f3ff5b5e6337b887964400f090fdabd807bd8382a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abb620715e077c9d654140f3ff5b5e6337b887964400f090fdabd807bd8382a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abb620715e077c9d654140f3ff5b5e6337b887964400f090fdabd807bd8382a0", kill_on_drop: false }`
[INFO] [stdout] abb620715e077c9d654140f3ff5b5e6337b887964400f090fdabd807bd8382a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ac7c7a4b7c0fd6230edf39de98a7d1514d63292e606736853ecabfd78380749
[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" "3ac7c7a4b7c0fd6230edf39de98a7d1514d63292e606736853ecabfd78380749", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling tiny-keccak v1.1.1
[INFO] [stderr]    Compiling constant_time_eq v0.1.2
[INFO] [stderr]    Compiling unicode-segmentation v0.1.3
[INFO] [stderr]    Compiling strsim v0.5.2
[INFO] [stderr]    Compiling bitpack v0.1.0
[INFO] [stderr]    Compiling ascon v0.1.3
[INFO] [stderr]    Compiling hc256 v0.1.4
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ascon-0.1.3/src/lib.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use] extern crate collections;
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[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 E0463`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling blake2-rfc v0.2.17
[INFO] [stderr] error: could not compile `ascon` due to 2 previous errors
[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/blake2-rfc-0.2.17/src/lib.rs:17:31
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![cfg_attr(feature = "simd", feature(platform_intrinsics, repr_simd))]
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/blake2-rfc-0.2.17/src/lib.rs:18:35
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![cfg_attr(feature = "simd_opt", feature(cfg_target_feature))]
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `cfg_target_feature` has been stable since 1.27.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[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/blake2-rfc-0.2.17/src/lib.rs:19:35
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![cfg_attr(feature = "simd_asm", feature(asm))]
[INFO] [stdout]    |                                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[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" "3ac7c7a4b7c0fd6230edf39de98a7d1514d63292e606736853ecabfd78380749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac7c7a4b7c0fd6230edf39de98a7d1514d63292e606736853ecabfd78380749", kill_on_drop: false }`
[INFO] [stdout] 3ac7c7a4b7c0fd6230edf39de98a7d1514d63292e606736853ecabfd78380749