[INFO] cloning repository https://github.com/pleasewhy/kernel-sync
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pleasewhy/kernel-sync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpleasewhy%2Fkernel-sync", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpleasewhy%2Fkernel-sync'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d1f25680f3b7ca2e9f450d3e2211c126a80427bb
[INFO] checking pleasewhy/kernel-sync against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpleasewhy%2Fkernel-sync" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pleasewhy/kernel-sync on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pleasewhy/kernel-sync
[INFO] finished tweaking git repo https://github.com/pleasewhy/kernel-sync
[INFO] tweaked toml for git repo https://github.com/pleasewhy/kernel-sync written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pleasewhy/kernel-sync 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1149b0cbeffaca533b89c215c36e9896a151a3f05fd61116237853e086f70248
[INFO] running `Command { std: "docker" "start" "-a" "1149b0cbeffaca533b89c215c36e9896a151a3f05fd61116237853e086f70248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1149b0cbeffaca533b89c215c36e9896a151a3f05fd61116237853e086f70248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1149b0cbeffaca533b89c215c36e9896a151a3f05fd61116237853e086f70248", kill_on_drop: false }`
[INFO] [stdout] 1149b0cbeffaca533b89c215c36e9896a151a3f05fd61116237853e086f70248
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf3536a2086e9469302e412aab549abda4ad0f7fa6ed9b2cf8625f0407df2419
[INFO] running `Command { std: "docker" "start" "-a" "cf3536a2086e9469302e412aab549abda4ad0f7fa6ed9b2cf8625f0407df2419", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking kernel_sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `SpinLockGuard<'_, LinkedList<Arc<Waiter>>>` in the current scope
[INFO] [stdout]    --> src/mutex.rs:117:40
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let disabled_waiters = waiters.drain_filter(|waiter| waiter.is_disabled());
[INFO] [stdout]     |                                        ^^^^^^^^^^^^ method not found in `SpinLockGuard<'_, LinkedList<Arc<Waiter>>>`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/spinlock.rs:21:1
[INFO] [stdout]     |
[INFO] [stdout] 21  | pub struct SpinLockGuard<'a, T: ?Sized + 'a> {
[INFO] [stdout]     | -------------------------------------------- method `drain_filter` not found for this struct
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `SpinLockGuard<'_, LinkedList<Arc<Waiter>>>` in the current scope
[INFO] [stdout]    --> src/mutex.rs:117:40
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let disabled_waiters = waiters.drain_filter(|waiter| waiter.is_disabled());
[INFO] [stdout]     |                                        ^^^^^^^^^^^^ method not found in `SpinLockGuard<'_, LinkedList<Arc<Waiter>>>`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/spinlock.rs:21:1
[INFO] [stdout]     |
[INFO] [stdout] 21  | pub struct SpinLockGuard<'a, T: ?Sized + 'a> {
[INFO] [stdout]     | -------------------------------------------- method `drain_filter` not found for this struct
[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 `kernel_sync` (lib) 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 `kernel_sync` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "cf3536a2086e9469302e412aab549abda4ad0f7fa6ed9b2cf8625f0407df2419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3536a2086e9469302e412aab549abda4ad0f7fa6ed9b2cf8625f0407df2419", kill_on_drop: false }`
[INFO] [stdout] cf3536a2086e9469302e412aab549abda4ad0f7fa6ed9b2cf8625f0407df2419
[INFO] checking pleasewhy/kernel-sync against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpleasewhy%2Fkernel-sync" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pleasewhy/kernel-sync on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pleasewhy/kernel-sync
[INFO] finished tweaking git repo https://github.com/pleasewhy/kernel-sync
[INFO] tweaked toml for git repo https://github.com/pleasewhy/kernel-sync written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pleasewhy/kernel-sync 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" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6a88a9c31de91f1bca1bb78b35c16703c9b0c29db7c4becbadfe8f968d86f1a
[INFO] running `Command { std: "docker" "start" "-a" "f6a88a9c31de91f1bca1bb78b35c16703c9b0c29db7c4becbadfe8f968d86f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6a88a9c31de91f1bca1bb78b35c16703c9b0c29db7c4becbadfe8f968d86f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a88a9c31de91f1bca1bb78b35c16703c9b0c29db7c4becbadfe8f968d86f1a", kill_on_drop: false }`
[INFO] [stdout] f6a88a9c31de91f1bca1bb78b35c16703c9b0c29db7c4becbadfe8f968d86f1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2416e5feed491f98447ece8ec9341690a7c3dbb12e06e33fdb88a314ca818f3c
[INFO] running `Command { std: "docker" "start" "-a" "2416e5feed491f98447ece8ec9341690a7c3dbb12e06e33fdb88a314ca818f3c", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "2416e5feed491f98447ece8ec9341690a7c3dbb12e06e33fdb88a314ca818f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2416e5feed491f98447ece8ec9341690a7c3dbb12e06e33fdb88a314ca818f3c", kill_on_drop: false }`
[INFO] [stdout] 2416e5feed491f98447ece8ec9341690a7c3dbb12e06e33fdb88a314ca818f3c