[INFO] cloning repository https://github.com/qqwa/amethyst_parser_syn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qqwa/amethyst_parser_syn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqqwa%2Famethyst_parser_syn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqqwa%2Famethyst_parser_syn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42bc1e0a06284ae8abac68beb07990fe09f84a38
[INFO] testing qqwa/amethyst_parser_syn against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqqwa%2Famethyst_parser_syn" "/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/qqwa/amethyst_parser_syn on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qqwa/amethyst_parser_syn
[INFO] finished tweaking git repo https://github.com/qqwa/amethyst_parser_syn
[INFO] tweaked toml for git repo https://github.com/qqwa/amethyst_parser_syn written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/qqwa/amethyst_parser_syn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 068feb4efd49ac5382b12cb229846a88cc0ac73f3e6b22c0ae615c3a6742d098
[INFO] running `Command { std: "docker" "start" "-a" "068feb4efd49ac5382b12cb229846a88cc0ac73f3e6b22c0ae615c3a6742d098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "068feb4efd49ac5382b12cb229846a88cc0ac73f3e6b22c0ae615c3a6742d098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "068feb4efd49ac5382b12cb229846a88cc0ac73f3e6b22c0ae615c3a6742d098", kill_on_drop: false }`
[INFO] [stdout] 068feb4efd49ac5382b12cb229846a88cc0ac73f3e6b22c0ae615c3a6742d098
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6ca523ad8ebe6431923edb4b55c7f685c4a7eaf91e22a6ea8a05e4b3ad51014
[INFO] running `Command { std: "docker" "start" "-a" "d6ca523ad8ebe6431923edb4b55c7f685c4a7eaf91e22a6ea8a05e4b3ad51014", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling amethyst_parser_syn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]    --> src/lib.rs:121:70
[INFO] [stdout]     |
[INFO] [stdout] 121 |                     doc_string = doc_string[1..doc_string.len() - 1].trim_left().to_string();
[INFO] [stdout]     |                                                                      ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[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 `amethyst_parser_syn`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d6ca523ad8ebe6431923edb4b55c7f685c4a7eaf91e22a6ea8a05e4b3ad51014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6ca523ad8ebe6431923edb4b55c7f685c4a7eaf91e22a6ea8a05e4b3ad51014", kill_on_drop: false }`
[INFO] [stdout] d6ca523ad8ebe6431923edb4b55c7f685c4a7eaf91e22a6ea8a05e4b3ad51014
