[INFO] fetching crate xtensa-lx106-rt 0.1.2...
[INFO] testing xtensa-lx106-rt-0.1.2 against 1.54.0 for beta-1.55-1
[INFO] extracting crate xtensa-lx106-rt 0.1.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate xtensa-lx106-rt 0.1.2 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xtensa-lx106-rt 0.1.2
[INFO] finished tweaking crates.io crate xtensa-lx106-rt 0.1.2
[INFO] tweaked toml for crates.io crate xtensa-lx106-rt 0.1.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db9519ea90253b61762b78dec2e7c97ed9012b774cbfe817fca4cd5d0032a083
[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" "db9519ea90253b61762b78dec2e7c97ed9012b774cbfe817fca4cd5d0032a083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db9519ea90253b61762b78dec2e7c97ed9012b774cbfe817fca4cd5d0032a083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db9519ea90253b61762b78dec2e7c97ed9012b774cbfe817fca4cd5d0032a083", kill_on_drop: false }`
[INFO] [stdout] db9519ea90253b61762b78dec2e7c97ed9012b774cbfe817fca4cd5d0032a083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b61afb881cfed28163ec1772b5b62f19da43acb91b2832f45799e5d3a3fd9c53
[INFO] running `Command { std: "docker" "start" "-a" "b61afb881cfed28163ec1772b5b62f19da43acb91b2832f45799e5d3a3fd9c53", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling xtensa-lx106-rt v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling r0 v1.0.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling xtensa-lx106-rt-proc-macros v0.1.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(llvm_asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(global_asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(naked_functions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | /     llvm_asm!(
[INFO] [stdout] 131 | |         "
[INFO] [stdout] 132 | |         wsr a0, EXCSAVE1 // preserve a0
[INFO] [stdout] 133 | |         call0 __naked_debug_exception     // used as long jump
[INFO] [stdout] 134 | |         "
[INFO] [stdout] 135 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unsupported_naked_functions)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 142 | /     llvm_asm!(
[INFO] [stdout] 143 | |         "
[INFO] [stdout] 144 | |         wsr a0, EXCSAVE1 // preserve a0
[INFO] [stdout] 145 | |         call0 __naked_nmi_exception     // used as long jump
[INFO] [stdout] 146 | |         "
[INFO] [stdout] 147 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 154 | /     llvm_asm!(
[INFO] [stdout] 155 | |         "
[INFO] [stdout] 156 | |         wsr a0, EXCSAVE1 // preserve a0
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |         call0  __naked_kernel_exception
[INFO] [stdout] 159 | |         "
[INFO] [stdout] 160 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 | /     llvm_asm!(
[INFO] [stdout] 168 | |         "
[INFO] [stdout] 169 | |         wsr a0, EXCSAVE1 // preserve a0
[INFO] [stdout] 170 | |
[INFO] [stdout] 171 | |         call0 __naked_user_exception
[INFO] [stdout] 172 | |         "
[INFO] [stdout] 173 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception.rs:180:5
[INFO] [stdout]     |
[INFO] [stdout] 180 | /     llvm_asm!(
[INFO] [stdout] 181 | |         "
[INFO] [stdout] 182 | |         wsr a0, EXCSAVE1                   // preserve a0 (EXCSAVE1 can be reused as long as there
[INFO] [stdout] 183 | |                                            // is no double exception in the first exception until
[INFO] [stdout] ...   |
[INFO] [stdout] 186 | |     "
[INFO] [stdout] 187 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]   --> src/exception/assembly.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | /     llvm_asm!(
[INFO] [stdout] 62 | |         "
[INFO] [stdout] 63 | |         s32i    a2,  sp, +XT_STK_A2
[INFO] [stdout] 64 | |         s32i    a3,  sp, +XT_STK_A3
[INFO] [stdout] ...  |
[INFO] [stdout] 82 | |     "
[INFO] [stdout] 83 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]    = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]    = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception/assembly.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 137 | /     llvm_asm!(
[INFO] [stdout] 138 | |         "
[INFO] [stdout] 139 | |         l32i    a3,  sp, +XT_STK_SAR
[INFO] [stdout] 140 | |         wsr     a3,  SAR
[INFO] [stdout] ...   |
[INFO] [stdout] 159 | |     "
[INFO] [stdout] 160 | |     )
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception/assembly.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 | /     llvm_asm!(
[INFO] [stdout] 195 | |         "
[INFO] [stdout] 196 | |         SAVE_CONTEXT 1
[INFO] [stdout] 197 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 229 | |         "
[INFO] [stdout] 230 | |     )
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception/assembly.rs:241:5
[INFO] [stdout]     |
[INFO] [stdout] 241 | /     llvm_asm!(
[INFO] [stdout] 242 | |         "
[INFO] [stdout] 243 | |         SAVE_CONTEXT double
[INFO] [stdout] 244 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 252 | |         "
[INFO] [stdout] 253 | |     )
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception/assembly.rs:264:5
[INFO] [stdout]     |
[INFO] [stdout] 264 | /     llvm_asm!(
[INFO] [stdout] 265 | |         "
[INFO] [stdout] 266 | |         SAVE_CONTEXT 1
[INFO] [stdout] 267 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 277 | |         "
[INFO] [stdout] 278 | |     )
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception/assembly.rs:289:5
[INFO] [stdout]     |
[INFO] [stdout] 289 | /     llvm_asm!(
[INFO] [stdout] 290 | |         "
[INFO] [stdout] 291 | |         SAVE_CONTEXT 1
[INFO] [stdout] 292 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 301 | |         "
[INFO] [stdout] 302 | |     )
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception/assembly.rs:313:5
[INFO] [stdout]     |
[INFO] [stdout] 313 | /     llvm_asm!(
[INFO] [stdout] 314 | |         "
[INFO] [stdout] 315 | |         SAVE_CONTEXT 1
[INFO] [stdout] 316 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 325 | |         "
[INFO] [stdout] 326 | |     )
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/exception/assembly.rs:337:5
[INFO] [stdout]     |
[INFO] [stdout] 337 | /     llvm_asm!(
[INFO] [stdout] 338 | |         "
[INFO] [stdout] 339 | |         SAVE_CONTEXT 1
[INFO] [stdout] 340 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 349 | |         "
[INFO] [stdout] 350 | |     )
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #32408 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xtensa-lx106-rt`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b61afb881cfed28163ec1772b5b62f19da43acb91b2832f45799e5d3a3fd9c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b61afb881cfed28163ec1772b5b62f19da43acb91b2832f45799e5d3a3fd9c53", kill_on_drop: false }`
[INFO] [stdout] b61afb881cfed28163ec1772b5b62f19da43acb91b2832f45799e5d3a3fd9c53
