[INFO] cloning repository https://github.com/samuel-weinstein-cs/coffee-gravity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samuel-weinstein-cs/coffee-gravity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuel-weinstein-cs%2Fcoffee-gravity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuel-weinstein-cs%2Fcoffee-gravity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8b46cc7fbb49c964ce99b8b000b1d6b562c7ff1
[INFO] testing samuel-weinstein-cs/coffee-gravity against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuel-weinstein-cs%2Fcoffee-gravity" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/samuel-weinstein-cs/coffee-gravity
[INFO] finished tweaking git repo https://github.com/samuel-weinstein-cs/coffee-gravity
[INFO] tweaked toml for git repo https://github.com/samuel-weinstein-cs/coffee-gravity written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/samuel-weinstein-cs/coffee-gravity on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/samuel-weinstein-cs/coffee-gravity already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 829f52b1dcf3e7390c65bb0c5fca8d41d98e54d91bdfc4c3edf80c994644af19
[INFO] running `Command { std: "docker" "start" "-a" "829f52b1dcf3e7390c65bb0c5fca8d41d98e54d91bdfc4c3edf80c994644af19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "829f52b1dcf3e7390c65bb0c5fca8d41d98e54d91bdfc4c3edf80c994644af19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "829f52b1dcf3e7390c65bb0c5fca8d41d98e54d91bdfc4c3edf80c994644af19", kill_on_drop: false }`
[INFO] [stdout] 829f52b1dcf3e7390c65bb0c5fca8d41d98e54d91bdfc4c3edf80c994644af19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ff7aab40339dd17f90f9e775a077534894a3c555ca5e6b2843c7ff67dc91ea4
[INFO] running `Command { std: "docker" "start" "-a" "6ff7aab40339dd17f90f9e775a077534894a3c555ca5e6b2843c7ff67dc91ea4", kill_on_drop: false }`
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[INFO] [stderr]    Compiling coffee v0.4.1
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[INFO] [stderr]    Compiling glutin v0.24.1
[INFO] [stderr]    Compiling coffee-gravity v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `coffee-gravity` (bin "coffee-gravity") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6ff7aab40339dd17f90f9e775a077534894a3c555ca5e6b2843c7ff67dc91ea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ff7aab40339dd17f90f9e775a077534894a3c555ca5e6b2843c7ff67dc91ea4", kill_on_drop: false }`
[INFO] [stdout] 6ff7aab40339dd17f90f9e775a077534894a3c555ca5e6b2843c7ff67dc91ea4
