[INFO] cloning repository https://github.com/aviansie-ben/mppc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aviansie-ben/mppc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faviansie-ben%2Fmppc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faviansie-ben%2Fmppc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7344e1993aad0789c843b3417b61dcdd486273ac
[INFO] checking aviansie-ben/mppc against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faviansie-ben%2Fmppc" "/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/aviansie-ben/mppc on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aviansie-ben/mppc
[INFO] finished tweaking git repo https://github.com/aviansie-ben/mppc
[INFO] tweaked toml for git repo https://github.com/aviansie-ben/mppc written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/aviansie-ben/mppc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.7.7
[INFO] [stderr]   Downloaded lalr v0.0.2
[INFO] [stderr]   Downloaded redfa v0.0.2
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 9a122fe6e8c4f586e7d09bd07d6f9dce46e908aa58c04821c2432efb3ede7257
[INFO] running `Command { std: "docker" "start" "-a" "9a122fe6e8c4f586e7d09bd07d6f9dce46e908aa58c04821c2432efb3ede7257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a122fe6e8c4f586e7d09bd07d6f9dce46e908aa58c04821c2432efb3ede7257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a122fe6e8c4f586e7d09bd07d6f9dce46e908aa58c04821c2432efb3ede7257", kill_on_drop: false }`
[INFO] [stdout] 9a122fe6e8c4f586e7d09bd07d6f9dce46e908aa58c04821c2432efb3ede7257
[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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--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] 087a3cfb693aed6bb1a6999d615d098c491b6ad121ae9f8e48e10e9204d66ad5
[INFO] running `Command { std: "docker" "start" "-a" "087a3cfb693aed6bb1a6999d615d098c491b6ad121ae9f8e48e10e9204d66ad5", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]    Compiling lalr v0.0.2
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking itertools v0.7.7
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling redfa v0.0.2
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking clap v2.31.1
[INFO] [stderr]    Compiling plex v0.0.3 (/opt/rustwide/workdir/plex)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> plex/src/lib.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(plugin_registrar, quote, rustc_private, i128_type)]
[INFO] [stdout]   |                              ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]  --> plex/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate syntax;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `plex`
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0557.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "087a3cfb693aed6bb1a6999d615d098c491b6ad121ae9f8e48e10e9204d66ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "087a3cfb693aed6bb1a6999d615d098c491b6ad121ae9f8e48e10e9204d66ad5", kill_on_drop: false }`
[INFO] [stdout] 087a3cfb693aed6bb1a6999d615d098c491b6ad121ae9f8e48e10e9204d66ad5