[INFO] cloning repository https://github.com/monkeycz/dressage
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/monkeycz/dressage" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonkeycz%2Fdressage", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonkeycz%2Fdressage'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b55edc4fbb941fdc06b19f2353caca7ec6c1312
[INFO] testing monkeycz/dressage against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonkeycz%2Fdressage" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/monkeycz/dressage on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/monkeycz/dressage
[INFO] finished tweaking git repo https://github.com/monkeycz/dressage
[INFO] tweaked toml for git repo https://github.com/monkeycz/dressage written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/monkeycz/dressage already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", 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] 1523878b8344d34a485973d6d35b0f7322c37555043adc11ff6a0a5a03d83282
[INFO] running `Command { std: "docker" "start" "-a" "1523878b8344d34a485973d6d35b0f7322c37555043adc11ff6a0a5a03d83282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1523878b8344d34a485973d6d35b0f7322c37555043adc11ff6a0a5a03d83282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1523878b8344d34a485973d6d35b0f7322c37555043adc11ff6a0a5a03d83282", kill_on_drop: false }`
[INFO] [stdout] 1523878b8344d34a485973d6d35b0f7322c37555043adc11ff6a0a5a03d83282
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 636c7fe92b87883347e5d816cc1ff3c505b41e0e233dba19dc8faffef4e40334
[INFO] running `Command { std: "docker" "start" "-a" "636c7fe92b87883347e5d816cc1ff3c505b41e0e233dba19dc8faffef4e40334", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling bitstream-io v1.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling dressage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BigEndian`
[INFO] [stdout]  --> src/gifdecoder/decoder.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitstream_io::{BigEndian, BitRead, BitReader, BitWrite, BitWriter, Endianness, LittleEndian};
[INFO] [stdout]   |                    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_into_raw_parts)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dressage` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "636c7fe92b87883347e5d816cc1ff3c505b41e0e233dba19dc8faffef4e40334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "636c7fe92b87883347e5d816cc1ff3c505b41e0e233dba19dc8faffef4e40334", kill_on_drop: false }`
[INFO] [stdout] 636c7fe92b87883347e5d816cc1ff3c505b41e0e233dba19dc8faffef4e40334