[INFO] fetching crate rustc-ap-syntax 645.0.0...
[INFO] checking rustc-ap-syntax-645.0.0 against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] extracting crate rustc-ap-syntax 645.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rustc-ap-syntax 645.0.0 on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustc-ap-syntax 645.0.0
[INFO] finished tweaking crates.io crate rustc-ap-syntax 645.0.0
[INFO] tweaked toml for crates.io crate rustc-ap-syntax 645.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fd8e1e2b9eb6b4404a1abaf586f437afb3923263b58fc32f9be4a96371a161e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4fd8e1e2b9eb6b4404a1abaf586f437afb3923263b58fc32f9be4a96371a161e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fd8e1e2b9eb6b4404a1abaf586f437afb3923263b58fc32f9be4a96371a161e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd8e1e2b9eb6b4404a1abaf586f437afb3923263b58fc32f9be4a96371a161e", kill_on_drop: false }`
[INFO] [stdout] 4fd8e1e2b9eb6b4404a1abaf586f437afb3923263b58fc32f9be4a96371a161e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80fb9ca5a39b3518e4fc6d1e266e4f0a7d8462627577a7078f4a85e885a9a84d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "80fb9ca5a39b3518e4fc6d1e266e4f0a7d8462627577a7078f4a85e885a9a84d", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-ap-graphviz v645.0.0
[INFO] [stderr]    Compiling rustc-ap-syntax v645.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rustc-ap-serialize v645.0.0
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/parking_lot-0.9.0/src/elision.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |               asm!("xacquire; lock; cmpxchgq $2, $1"
[INFO] [stdout]    |               ^---
[INFO] [stdout]    |               |
[INFO] [stdout]    |  _____________help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 71 | |                  : "={rax}" (prev), "+*m" (self)
[INFO] [stdout] 72 | |                  : "r" (new), "{rax}" (current)
[INFO] [stdout] 73 | |                  : "memory"
[INFO] [stdout] 74 | |                  : "volatile");
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]    = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/parking_lot-0.9.0/src/elision.rs:97:13
[INFO] [stdout]     |
[INFO] [stdout] 97  |               asm!("xrelease; lock; xaddq $2, $1"
[INFO] [stdout]     |               ^---
[INFO] [stdout]     |               |
[INFO] [stdout]     |  _____________help: replace with: `llvm_asm!`
[INFO] [stdout]     | |
[INFO] [stdout] 98  | |                  : "=r" (prev), "+*m" (self)
[INFO] [stdout] 99  | |                  : "0" (val.wrapping_neg())
[INFO] [stdout] 100 | |                  : "memory"
[INFO] [stdout] 101 | |                  : "volatile");
[INFO] [stdout]     | |_______________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `parking_lot`
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "80fb9ca5a39b3518e4fc6d1e266e4f0a7d8462627577a7078f4a85e885a9a84d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80fb9ca5a39b3518e4fc6d1e266e4f0a7d8462627577a7078f4a85e885a9a84d", kill_on_drop: false }`
[INFO] [stdout] 80fb9ca5a39b3518e4fc6d1e266e4f0a7d8462627577a7078f4a85e885a9a84d