[INFO] fetching crate may 0.3.18...
[INFO] checking may-0.3.18 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate may 0.3.18 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate may 0.3.18 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate may 0.3.18
[INFO] finished tweaking crates.io crate may 0.3.18
[INFO] tweaked toml for crates.io crate may 0.3.18 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate may 0.3.18 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 746df70ab19a13b0062180e87f699f79b5029c310506fc64ea88af31be77591f
[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" "746df70ab19a13b0062180e87f699f79b5029c310506fc64ea88af31be77591f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "746df70ab19a13b0062180e87f699f79b5029c310506fc64ea88af31be77591f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "746df70ab19a13b0062180e87f699f79b5029c310506fc64ea88af31be77591f", kill_on_drop: false }`
[INFO] [stdout] 746df70ab19a13b0062180e87f699f79b5029c310506fc64ea88af31be77591f
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51a71bf99f25e8d095971957f3ccd63ac62cb90b0fcbceaa371a3006ab9595a5
[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" "51a71bf99f25e8d095971957f3ccd63ac62cb90b0fcbceaa371a3006ab9595a5", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]     Checking bytes v0.5.5
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling may_queue v0.1.7
[INFO] [stderr]    Compiling generator v0.6.21
[INFO] [stderr]    Compiling may v0.3.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stdout] error: use of parameters not allowed inside naked functions
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/generator-0.6.21/src/detail/x86_64_unix.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 52 |             : "{rdi}"(out_regs), "{rsi}"(in_regs)
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of parameters not allowed inside naked functions
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/generator-0.6.21/src/detail/x86_64_unix.rs:52:42
[INFO] [stdout]    |
[INFO] [stdout] 52 |             : "{rdi}"(out_regs), "{rsi}"(in_regs)
[INFO] [stdout]    |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `generator`
[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" "51a71bf99f25e8d095971957f3ccd63ac62cb90b0fcbceaa371a3006ab9595a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51a71bf99f25e8d095971957f3ccd63ac62cb90b0fcbceaa371a3006ab9595a5", kill_on_drop: false }`
[INFO] [stdout] 51a71bf99f25e8d095971957f3ccd63ac62cb90b0fcbceaa371a3006ab9595a5