[INFO] fetching crate linux 0.0.1...
[INFO] testing linux-0.0.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate linux 0.0.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate linux 0.0.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate linux 0.0.1
[INFO] finished tweaking crates.io crate linux 0.0.1
[INFO] tweaked toml for crates.io crate linux 0.0.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", 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] 1a15ced3f449e5576d2b992a169483c6d5d2d1401962bcba228a6b27482a9f36
[INFO] running `Command { std: "docker" "start" "-a" "1a15ced3f449e5576d2b992a169483c6d5d2d1401962bcba228a6b27482a9f36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a15ced3f449e5576d2b992a169483c6d5d2d1401962bcba228a6b27482a9f36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a15ced3f449e5576d2b992a169483c6d5d2d1401962bcba228a6b27482a9f36", kill_on_drop: false }`
[INFO] [stdout] 1a15ced3f449e5576d2b992a169483c6d5d2d1401962bcba228a6b27482a9f36
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] ec6a2d7e767f70a5cf5a31264d8870b06a8beb86c791f3b091ef45b3049a5e4c
[INFO] running `Command { std: "docker" "start" "-a" "ec6a2d7e767f70a5cf5a31264d8870b06a8beb86c791f3b091ef45b3049a5e4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling linux-macros v0.0.1
[INFO] [stderr]    Compiling linux v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find attribute `structural_match` in this scope
[INFO] [stdout]   --> src/util/error.rs:49:3
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[structural_match]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> src/syscall/raw/x86_64.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing one of these items:
[INFO] [stdout]            std::arch::asm
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> src/syscall/raw/x86_64.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |         asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing one of these items:
[INFO] [stdout]            std::arch::asm
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> src/syscall/raw/x86_64.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing one of these items:
[INFO] [stdout]            std::arch::asm
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]    --> src/syscall/raw/x86_64.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider importing one of these items:
[INFO] [stdout]             std::arch::asm
[INFO] [stdout]             core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]    --> src/syscall/raw/x86_64.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider importing one of these items:
[INFO] [stdout]             std::arch::asm
[INFO] [stdout]             core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]    --> src/syscall/raw/x86_64.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider importing one of these items:
[INFO] [stdout]             std::arch::asm
[INFO] [stdout]             core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]    --> src/syscall/raw/x86_64.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider importing one of these items:
[INFO] [stdout]             std::arch::asm
[INFO] [stdout]             core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `initializer` is not a member of trait `std::io::Read`
[INFO] [stdout]    --> src/macros.rs:55:13
[INFO] [stdout]     |
[INFO] [stdout] 55  | /             unsafe fn initializer(&self) -> std::io::Initializer {
[INFO] [stdout] 56  | |                 std::io::Initializer::nop()
[INFO] [stdout] 57  | |             }
[INFO] [stdout]     | |_____________^ not a member of trait `std::io::Read`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/fd.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 |   impl_std_read!(FdIo);
[INFO] [stdout]     |   -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_std_read` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `Initializer` in `io`
[INFO] [stdout]    --> src/macros.rs:56:26
[INFO] [stdout]     |
[INFO] [stdout] 56  |                 std::io::Initializer::nop()
[INFO] [stdout]     |                          ^^^^^^^^^^^ could not find `Initializer` in `io`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/fd.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | impl_std_read!(FdIo);
[INFO] [stdout]     | -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_std_read` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `initializer` is not a member of trait `std::io::Read`
[INFO] [stdout]    --> src/macros.rs:55:13
[INFO] [stdout]     |
[INFO] [stdout] 55  | /             unsafe fn initializer(&self) -> std::io::Initializer {
[INFO] [stdout] 56  | |                 std::io::Initializer::nop()
[INFO] [stdout] 57  | |             }
[INFO] [stdout]     | |_____________^ not a member of trait `std::io::Read`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/fd.rs:232:1
[INFO] [stdout]     |
[INFO] [stdout] 232 |   impl_std_read!(&FdIo);
[INFO] [stdout]     |   --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_std_read` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `Initializer` in `io`
[INFO] [stdout]    --> src/macros.rs:56:26
[INFO] [stdout]     |
[INFO] [stdout] 56  |                 std::io::Initializer::nop()
[INFO] [stdout]     |                          ^^^^^^^^^^^ could not find `Initializer` in `io`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/fd.rs:232:1
[INFO] [stdout]     |
[INFO] [stdout] 232 | impl_std_read!(&FdIo);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_std_read` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Initializer` in module `std::io`
[INFO] [stdout]    --> src/macros.rs:55:54
[INFO] [stdout]     |
[INFO] [stdout] 55  |             unsafe fn initializer(&self) -> std::io::Initializer {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^ not found in `std::io`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/fd.rs:231:1
[INFO] [stdout]     |
[INFO] [stdout] 231 | impl_std_read!(FdIo);
[INFO] [stdout]     | -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_std_read` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Initializer` in module `std::io`
[INFO] [stdout]    --> src/macros.rs:55:54
[INFO] [stdout]     |
[INFO] [stdout] 55  |             unsafe fn initializer(&self) -> std::io::Initializer {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^ not found in `std::io`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/fd.rs:232:1
[INFO] [stdout]     |
[INFO] [stdout] 232 | impl_std_read!(&FdIo);
[INFO] [stdout]     | --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_std_read` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(asm, structural_match, read_initializer)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(asm, structural_match, read_initializer)]
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(asm, structural_match, read_initializer)]
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `asm` has been stable since 1.59.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(asm, structural_match, read_initializer)]
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `read_initializer`
[INFO] [stdout]  --> src/lib.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(asm, structural_match, read_initializer)]
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 18 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0407, E0412, E0433, E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0407`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `linux` due to 19 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ec6a2d7e767f70a5cf5a31264d8870b06a8beb86c791f3b091ef45b3049a5e4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec6a2d7e767f70a5cf5a31264d8870b06a8beb86c791f3b091ef45b3049a5e4c", kill_on_drop: false }`
[INFO] [stdout] ec6a2d7e767f70a5cf5a31264d8870b06a8beb86c791f3b091ef45b3049a5e4c