[INFO] fetching crate rocket-file-cache 1.0.0...
[INFO] checking rocket-file-cache-1.0.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate rocket-file-cache 1.0.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate rocket-file-cache 1.0.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rocket-file-cache 1.0.0
[INFO] finished tweaking crates.io crate rocket-file-cache 1.0.0
[INFO] tweaked toml for crates.io crate rocket-file-cache 1.0.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d275471b4dda39b52adb7b7508049141d8e49ab223cea7c93f6a0c5fffd91758
[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" "d275471b4dda39b52adb7b7508049141d8e49ab223cea7c93f6a0c5fffd91758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d275471b4dda39b52adb7b7508049141d8e49ab223cea7c93f6a0c5fffd91758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d275471b4dda39b52adb7b7508049141d8e49ab223cea7c93f6a0c5fffd91758", kill_on_drop: false }`
[INFO] [stdout] d275471b4dda39b52adb7b7508049141d8e49ab223cea7c93f6a0c5fffd91758
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e2ccd8af10ecfa621d43e58723cd180a9db046a0e2a8601c08c1c258ae5a7fd
[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" "4e2ccd8af10ecfa621d43e58723cd180a9db046a0e2a8601c08c1c258ae5a7fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking spin v0.4.8
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling rocket_codegen v0.4.5
[INFO] [stderr]    Compiling rocket v0.4.5
[INFO] [stderr]    Compiling pear_codegen v0.1.4
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling universal-hash v0.3.0
[INFO] [stderr] error: failed to run custom build command for `rocket v0.4.5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rocket-032b50c8519eaf1e/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   [1;31mError:[0m [1mRocket (core) requires a 'dev' or 'nightly' version of rustc.[0m
[INFO] [stderr]   Installed version: [33m1.46.0 (2020-07-23)[0m
[INFO] [stderr]   Minimum required:  [33m1.35.0-nightly (2019-04-05)[0m
[INFO] [stderr]   [34mSee the getting started guide ([0mhttps://rocket.rs/v0.5/guide/getting-started/[34m) for more information.[0m
[INFO] [stderr]   thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.4.5/build.rs:29:13
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5555a0d5e875 - backtrace::backtrace::libunwind::trace::h5e2646fa3eddf2ea
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]      1:     0x5555a0d5e875 - backtrace::backtrace::trace_unsynchronized::hb95dd7f77ce47877
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x5555a0d5e875 - std::sys_common::backtrace::_print_fmt::h5e71b67af43fd70d
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]      3:     0x5555a0d5e875 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hdb4a83d2b61107e5
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]      4:     0x5555a0d805cc - core::fmt::write::ha20e7262fa3e8a7a
[INFO] [stderr]                                  at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]      5:     0x5555a0d5bef2 - std::io::Write::write_fmt::h1aebfe8a5a79e36d
[INFO] [stderr]                                  at src/libstd/io/mod.rs:1537
[INFO] [stderr]      6:     0x5555a0d60cb0 - std::sys_common::backtrace::_print::h9c07314cc66ba539
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]      7:     0x5555a0d60cb0 - std::sys_common::backtrace::print::hd1fd65f49a2d8544
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]      8:     0x5555a0d60cb0 - std::panicking::default_hook::{{closure}}::h222da46485ab36fc
[INFO] [stderr]                                  at src/libstd/panicking.rs:198
[INFO] [stderr]      9:     0x5555a0d609fc - std::panicking::default_hook::hc5868949d129ed00
[INFO] [stderr]                                  at src/libstd/panicking.rs:217
[INFO] [stderr]     10:     0x5555a0d612f3 - std::panicking::rust_panic_with_hook::h26a6ab8b0993c0c8
[INFO] [stderr]                                  at src/libstd/panicking.rs:526
[INFO] [stderr]     11:     0x5555a0d3b025 - std::panicking::begin_panic::hb5f5b2d0fd5eaef5
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/panicking.rs:456
[INFO] [stderr]     12:     0x5555a0d36ba4 - build_script_build::main::he7466b437df7656d
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.4.5/build.rs:29
[INFO] [stderr]     13:     0x5555a0d3879b - std::rt::lang_start::{{closure}}::h3b8397579a5813c4
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67
[INFO] [stderr]     14:     0x5555a0d616c3 - std::rt::lang_start_internal::{{closure}}::h84a998219831fa70
[INFO] [stderr]                                  at src/libstd/rt.rs:52
[INFO] [stderr]     15:     0x5555a0d616c3 - std::panicking::try::do_call::he8e1d689a3e26def
[INFO] [stderr]                                  at src/libstd/panicking.rs:348
[INFO] [stderr]     16:     0x5555a0d616c3 - std::panicking::try::h264b6eebc2fa7bbf
[INFO] [stderr]                                  at src/libstd/panicking.rs:325
[INFO] [stderr]     17:     0x5555a0d616c3 - std::panic::catch_unwind::hbf28fafa723b2128
[INFO] [stderr]                                  at src/libstd/panic.rs:394
[INFO] [stderr]     18:     0x5555a0d616c3 - std::rt::lang_start_internal::he959aa59bc3ec202
[INFO] [stderr]                                  at src/libstd/rt.rs:51
[INFO] [stderr]     19:     0x5555a0d38777 - std::rt::lang_start::h91c059fdaf39984f
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67
[INFO] [stderr]     20:     0x5555a0d373aa - main
[INFO] [stderr]     21:     0x7fae727c30b3 - __libc_start_main
[INFO] [stderr]     22:     0x5555a0d3617e - _start
[INFO] [stderr]     23:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/util.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |     unsafe { asm!("pause" :::: "volatile"); }
[INFO] [stdout]   |              ----^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |              |
[INFO] [stdout]   |              help: replace with: `llvm_asm!`
[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[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:6:30
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "asm", feature(asm))]
[INFO] [stdout]   |                              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4e2ccd8af10ecfa621d43e58723cd180a9db046a0e2a8601c08c1c258ae5a7fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e2ccd8af10ecfa621d43e58723cd180a9db046a0e2a8601c08c1c258ae5a7fd", kill_on_drop: false }`
[INFO] [stdout] 4e2ccd8af10ecfa621d43e58723cd180a9db046a0e2a8601c08c1c258ae5a7fd
