[INFO] fetching crate linux 0.0.1...
[INFO] testing linux-0.0.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate linux 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate linux 0.0.1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linux-macros v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82020c18b82141f8eed8757e6830450baa3d6372369aaf456c817f43c0589925
[INFO] running `Command { std: "docker" "start" "-a" "82020c18b82141f8eed8757e6830450baa3d6372369aaf456c817f43c0589925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82020c18b82141f8eed8757e6830450baa3d6372369aaf456c817f43c0589925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82020c18b82141f8eed8757e6830450baa3d6372369aaf456c817f43c0589925", kill_on_drop: false }`
[INFO] [stdout] 82020c18b82141f8eed8757e6830450baa3d6372369aaf456c817f43c0589925
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e8c28eeb3244c59b95ebbbe7559bc6f963e0c8848d4026e68bd8deedca4ab38
[INFO] running `Command { std: "docker" "start" "-a" "0e8c28eeb3244c59b95ebbbe7559bc6f963e0c8848d4026e68bd8deedca4ab38", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling memchr v2.7.1
[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] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 65 +     use core::arch::asm;
[INFO] [stdout]    |
[INFO] [stdout] 65 +     use std::arch::asm;
[INFO] [stdout]    |
[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] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 65 +     use core::arch::asm;
[INFO] [stdout]    |
[INFO] [stdout] 65 +     use std::arch::asm;
[INFO] [stdout]    |
[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] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 65 +     use core::arch::asm;
[INFO] [stdout]    |
[INFO] [stdout] 65 +     use std::arch::asm;
[INFO] [stdout]    |
[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] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 65  +     use core::arch::asm;
[INFO] [stdout]     |
[INFO] [stdout] 65  +     use std::arch::asm;
[INFO] [stdout]     |
[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] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 65  +     use core::arch::asm;
[INFO] [stdout]     |
[INFO] [stdout] 65  +     use std::arch::asm;
[INFO] [stdout]     |
[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] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 65  +     use core::arch::asm;
[INFO] [stdout]     |
[INFO] [stdout] 65  +     use std::arch::asm;
[INFO] [stdout]     |
[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] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 65  +     use core::arch::asm;
[INFO] [stdout]     |
[INFO] [stdout] 65  +     use std::arch::asm;
[INFO] [stdout]     |
[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 stable 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 stable 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 stable 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` (lib) due to 19 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "0e8c28eeb3244c59b95ebbbe7559bc6f963e0c8848d4026e68bd8deedca4ab38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e8c28eeb3244c59b95ebbbe7559bc6f963e0c8848d4026e68bd8deedca4ab38", kill_on_drop: false }`
[INFO] [stdout] 0e8c28eeb3244c59b95ebbbe7559bc6f963e0c8848d4026e68bd8deedca4ab38
