[INFO] cloning repository https://github.com/peterjoel/gol
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/peterjoel/gol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterjoel%2Fgol", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterjoel%2Fgol'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2a40f37e802bf076e211057201f09e65c04c67a
[INFO] checking peterjoel/gol against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterjoel%2Fgol" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/peterjoel/gol on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/peterjoel/gol
[INFO] finished tweaking git repo https://github.com/peterjoel/gol
[INFO] tweaked toml for git repo https://github.com/peterjoel/gol written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/peterjoel/gol 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gag v0.1.10
[INFO] [stderr]   Downloaded tempfile v3.0.4
[INFO] [stderr]   Downloaded rustty v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a51bf017ce9497bb7af60becf83e14d24611c25bddd618359749726831d7a47
[INFO] running `Command { std: "docker" "start" "-a" "9a51bf017ce9497bb7af60becf83e14d24611c25bddd618359749726831d7a47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a51bf017ce9497bb7af60becf83e14d24611c25bddd618359749726831d7a47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a51bf017ce9497bb7af60becf83e14d24611c25bddd618359749726831d7a47", kill_on_drop: false }`
[INFO] [stdout] 9a51bf017ce9497bb7af60becf83e14d24611c25bddd618359749726831d7a47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db8b8f7645eb1420ae7ee3a78e0995702e1c3497b20d2ddddf5f8ffe93fd9deb
[INFO] running `Command { std: "docker" "start" "-a" "db8b8f7645eb1420ae7ee3a78e0995702e1c3497b20d2ddddf5f8ffe93fd9deb", kill_on_drop: false }`
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking tempfile v3.0.4
[INFO] [stderr]     Checking gag v0.1.10
[INFO] [stderr]     Checking rustty v0.1.12
[INFO] [stderr]     Checking gol 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] 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] error[E0599]: no method named `drain_filter` found for struct `RefMut<'_, Vec<char>>` in the current scope
[INFO] [stdout]   --> src/backend/terminal.rs:55:39
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let presses: Vec<_> = presses.drain_filter(|key| filter(*key).is_some()).collect();
[INFO] [stdout]    |                                       ^^^^^^^^^^^^ method not found in `RefMut<'_, Vec<char>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `RefMut<'_, Vec<char>>` in the current scope
[INFO] [stdout]   --> src/backend/terminal.rs:55:39
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let presses: Vec<_> = presses.drain_filter(|key| filter(*key).is_some()).collect();
[INFO] [stdout]    |                                       ^^^^^^^^^^^^ method not found in `RefMut<'_, Vec<char>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gol` (bin "gol") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gol` (bin "gol" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "db8b8f7645eb1420ae7ee3a78e0995702e1c3497b20d2ddddf5f8ffe93fd9deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db8b8f7645eb1420ae7ee3a78e0995702e1c3497b20d2ddddf5f8ffe93fd9deb", kill_on_drop: false }`
[INFO] [stdout] db8b8f7645eb1420ae7ee3a78e0995702e1c3497b20d2ddddf5f8ffe93fd9deb