[INFO] fetching crate quad-wasmnastics 0.3.0...
[INFO] checking quad-wasmnastics-0.3.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate quad-wasmnastics 0.3.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate quad-wasmnastics 0.3.0
[INFO] finished tweaking crates.io crate quad-wasmnastics 0.3.0
[INFO] tweaked toml for crates.io crate quad-wasmnastics 0.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate quad-wasmnastics 0.3.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate quad-wasmnastics 0.3.0 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4183e0e990b56da8b1c6abfa1f814e0269ecbd87f24ddff90224e4529cdc92af
[INFO] running `Command { std: "docker" "start" "-a" "4183e0e990b56da8b1c6abfa1f814e0269ecbd87f24ddff90224e4529cdc92af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4183e0e990b56da8b1c6abfa1f814e0269ecbd87f24ddff90224e4529cdc92af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4183e0e990b56da8b1c6abfa1f814e0269ecbd87f24ddff90224e4529cdc92af", kill_on_drop: false }`
[INFO] [stdout] 4183e0e990b56da8b1c6abfa1f814e0269ecbd87f24ddff90224e4529cdc92af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05bed668c146c7db48f549d647f0530e74f2ff1a5075acc01e678e12223da7c5
[INFO] running `Command { std: "docker" "start" "-a" "05bed668c146c7db48f549d647f0530e74f2ff1a5075acc01e678e12223da7c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
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[INFO] [stderr]     Checking smithay-clipboard v0.6.3
[INFO] [stderr]     Checking copypasta v0.7.1
[INFO] [stderr]     Checking quad-wasmnastics v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> examples/clipboardinator.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 `Vec<Waiter<()>>` in the current scope
[INFO] [stdout]   --> examples/clipboardinator.rs:38:14
[INFO] [stdout]    |
[INFO] [stdout] 36 | /         copy_queue
[INFO] [stdout] 37 | |             // remove it if it's some
[INFO] [stdout] 38 | |             .drain_filter(|waiter| {
[INFO] [stdout]    | |             -^^^^^^^^^^^^ method not found in `Vec<Waiter<()>>`
[INFO] [stdout]    | |_____________|
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `Vec<Waiter<std::string::String>>` in the current scope
[INFO] [stdout]   --> examples/clipboardinator.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 52 | /         paste_queue
[INFO] [stdout] 53 | |             .drain_filter(|waiter| {
[INFO] [stdout]    | |             -^^^^^^^^^^^^ method not found in `Vec<Waiter<std::string::String>>`
[INFO] [stdout]    | |_____________|
[INFO] [stdout]    |
[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 `quad-wasmnastics` (example "clipboardinator") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "05bed668c146c7db48f549d647f0530e74f2ff1a5075acc01e678e12223da7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05bed668c146c7db48f549d647f0530e74f2ff1a5075acc01e678e12223da7c5", kill_on_drop: false }`
[INFO] [stdout] 05bed668c146c7db48f549d647f0530e74f2ff1a5075acc01e678e12223da7c5