[INFO] cloning repository https://github.com/skrueger/tavern
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skrueger/tavern" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskrueger%2Ftavern", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskrueger%2Ftavern'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd1c26d06f9b9c65cc94f039a9152e64630c42b7
[INFO] checking skrueger/tavern against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskrueger%2Ftavern" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/skrueger/tavern
[INFO] finished tweaking git repo https://github.com/skrueger/tavern
[INFO] tweaked toml for git repo https://github.com/skrueger/tavern written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/skrueger/tavern on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/skrueger/tavern already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de362622ffc8a5d3088270d16231685c86a4b06e60e62adbc097db639efea3f0
[INFO] running `Command { std: "docker" "start" "-a" "de362622ffc8a5d3088270d16231685c86a4b06e60e62adbc097db639efea3f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de362622ffc8a5d3088270d16231685c86a4b06e60e62adbc097db639efea3f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de362622ffc8a5d3088270d16231685c86a4b06e60e62adbc097db639efea3f0", kill_on_drop: false }`
[INFO] [stdout] de362622ffc8a5d3088270d16231685c86a4b06e60e62adbc097db639efea3f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6638af4d54cdd90cb1d4fecc4f45ce6e029e357c62572955250fee0fee784c7
[INFO] running `Command { std: "docker" "start" "-a" "b6638af4d54cdd90cb1d4fecc4f45ce6e029e357c62572955250fee0fee784c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling tavern v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `PhysicalAddr` and `VirtualAddr`
[INFO] [stdout]  --> src/vm/mod.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use self::address::{PhysicalAddr, VirtualAddr};
[INFO] [stdout]   |                         ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Wrapper`
[INFO] [stdout]   --> src/volatile/mod.rs:18:50
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub use super::{Readable, ReadableWriteable, Wrapper, Writeable};
[INFO] [stdout]    |                                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on externally exported functions
[INFO] [stdout]   --> src/hw/uart.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[inline]
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: externally exported functions are functions with `#[no_mangle]`, `#[export_name]`, or `#[linkage]`
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(not(test), feature(lang_items))]
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VirtualAddr`
[INFO] [stdout]  --> src/vm/mod.rs:3:39
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use self::address::{PhysicalAddr, VirtualAddr};
[INFO] [stdout]   |                                       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Wrapper`
[INFO] [stdout]   --> src/volatile/mod.rs:18:50
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub use super::{Readable, ReadableWriteable, Wrapper, Writeable};
[INFO] [stdout]    |                                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on externally exported functions
[INFO] [stdout]   --> src/hw/uart.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[inline]
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: externally exported functions are functions with `#[no_mangle]`, `#[export_name]`, or `#[linkage]`
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/atags/atag.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Unknown(u32),
[INFO] [stdout]    |     ------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Atag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     Unknown(u32),
[INFO] [stdout] 10 +     Unknown(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_u64` is never used
[INFO] [stdout]   --> src/vm/address.rs:44:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |         impl $T {
[INFO] [stdout]    |         ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |             pub fn as_u64(&self) -> u64 {
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 | impl_for!(VirtualAddr);
[INFO] [stdout]    | ---------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_for` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_u64` is never used
[INFO] [stdout]   --> src/vm/address.rs:44:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |         impl $T {
[INFO] [stdout]    |         ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |             pub fn as_u64(&self) -> u64 {
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 | impl_for!(PhysicalAddr);
[INFO] [stdout]    | ----------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_for` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WriteVolatile` is never constructed
[INFO] [stdout]   --> src/volatile/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct WriteVolatile<T>(T);
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Reserved` is never constructed
[INFO] [stdout]   --> src/volatile/mod.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct Reserved<T>(T);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Unique` is never constructed
[INFO] [stdout]   --> src/volatile/mod.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct Unique<T>(T);
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]   --> src/lib.rs:36:42
[INFO] [stdout]    |
[INFO] [stdout] 36 |             core::writeln!(unsafe { &mut $crate::hw::uart::UART0 }, $($arg)*).unwrap();
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout] ...
[INFO] [stdout] 64 |     kprintln!("kmain enter");
[INFO] [stdout]    |     ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `kprintln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]   --> src/lib.rs:36:42
[INFO] [stdout]    |
[INFO] [stdout] 36 |             core::writeln!(unsafe { &mut $crate::hw::uart::UART0 }, $($arg)*).unwrap();
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout] ...
[INFO] [stdout] 70 |             kprintln!("Atags cmdline: {cmdline}");
[INFO] [stdout]    |             ------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: this warning originates in the macro `kprintln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]   --> src/lib.rs:36:42
[INFO] [stdout]    |
[INFO] [stdout] 36 |             core::writeln!(unsafe { &mut $crate::hw::uart::UART0 }, $($arg)*).unwrap();
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout] ...
[INFO] [stdout] 74 |             kprintln!("Atags mem start: {}, size: {}", mem.start, mem.size);
[INFO] [stdout]    |             --------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: this warning originates in the macro `kprintln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]   --> src/lib.rs:36:42
[INFO] [stdout]    |
[INFO] [stdout] 36 |             core::writeln!(unsafe { &mut $crate::hw::uart::UART0 }, $($arg)*).unwrap();
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout] ...
[INFO] [stdout] 88 |     kprintln!("kmain exit");
[INFO] [stdout]    |     ----------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: this warning originates in the macro `kprintln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/allocator/linked_list.rs:108:17
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn iter(&self) -> Iter {
[INFO] [stdout]     |                 ^^^^^     ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn iter(&self) -> Iter<'_> {
[INFO] [stdout]     |                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/allocator/linked_list.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn iter_mut(&mut self) -> IterMut {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn iter_mut(&mut self) -> IterMut<'_> {
[INFO] [stdout]     |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/mutex.rs:33:21
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn try_lock(&self) -> Option<MutexGuard<T>> {
[INFO] [stdout]    |                     ^^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn try_lock(&self) -> Option<MutexGuard<'_, T>> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/mutex.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn lock(&self) -> MutexGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tavern` (lib) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b6638af4d54cdd90cb1d4fecc4f45ce6e029e357c62572955250fee0fee784c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6638af4d54cdd90cb1d4fecc4f45ce6e029e357c62572955250fee0fee784c7", kill_on_drop: false }`
[INFO] [stdout] b6638af4d54cdd90cb1d4fecc4f45ce6e029e357c62572955250fee0fee784c7
