[INFO] cloning repository https://github.com/lizhirui/dreamos_rustversion
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lizhirui/dreamos_rustversion" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizhirui%2Fdreamos_rustversion", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizhirui%2Fdreamos_rustversion'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25e55f653061ac1b7aa8dc920db29144b67a2291
[INFO] checking lizhirui/dreamos_rustversion against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizhirui%2Fdreamos_rustversion" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lizhirui/dreamos_rustversion on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-17/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/lizhirui/dreamos_rustversion
[INFO] finished tweaking git repo https://github.com/lizhirui/dreamos_rustversion
[INFO] tweaked toml for git repo https://github.com/lizhirui/dreamos_rustversion written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/lizhirui/dreamos_rustversion already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f4216e7ea8e42f3cd895db630c955d2b3347b316a26b1c6e27d19ce3c33efe4
[INFO] running `Command { std: "docker" "start" "-a" "5f4216e7ea8e42f3cd895db630c955d2b3347b316a26b1c6e27d19ce3c33efe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f4216e7ea8e42f3cd895db630c955d2b3347b316a26b1c6e27d19ce3c33efe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4216e7ea8e42f3cd895db630c955d2b3347b316a26b1c6e27d19ce3c33efe4", kill_on_drop: false }`
[INFO] [stdout] 5f4216e7ea8e42f3cd895db630c955d2b3347b316a26b1c6e27d19ce3c33efe4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42ed6f843c9bcf554a25069bc32bcd6bafb3a254069caaa6d2b40cb4343fe26e
[INFO] running `Command { std: "docker" "start" "-a" "42ed6f843c9bcf554a25069bc32bcd6bafb3a254069caaa6d2b40cb4343fe26e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking spin v0.7.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking dreamos v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `null`
[INFO] [stdout]  --> src/common/list.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::ptr::{null, null_mut};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `null`
[INFO] [stdout]  --> src/common/list.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::ptr::{null, null_mut};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::alloc::Layout`
[INFO] [stdout]  --> src/task/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::alloc::Layout;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::alloc::Layout`
[INFO] [stdout]  --> src/task/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::alloc::Layout;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]  --> src/lang_items.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn panic(info: &PanicInfo) -> ! 
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8007b506ac5da629f223b755f5a5391edd5f6d01/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-10ccbcbb85a60ebf.rlib
[INFO] [stdout]   = note: second definition in the local crate (`dreamos`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `oom`
[INFO] [stdout]   --> src/memory/allocator.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn alloc_error_handler(layout: Layout) -> !
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8007b506ac5da629f223b755f5a5391edd5f6d01/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-10ccbcbb85a60ebf.rlib
[INFO] [stdout]    = note: second definition in the local crate (`dreamos`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/kernel/mod.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | /     loop
[INFO] [stdout] 52 | |     {
[INFO] [stdout] 53 | |         println!("abc");
[INFO] [stdout] 54 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 55 | 
[INFO] [stdout] 56 |       assert!(false);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/kernel/mod.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | /     loop
[INFO] [stdout] 52 | |     {
[INFO] [stdout] 53 | |         println!("abc");
[INFO] [stdout] 54 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 55 | 
[INFO] [stdout] 56 |       assert!(false);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/common/mod.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         unsafe{&$variable as *const _ as *mut _}
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/common/list.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe 
[INFO] [stdout]    |         ------ because it's nested under this `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/task/mod.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         list_init!(priority_list[i]);
[INFO] [stdout]    |         ----------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `get_pointer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/common/mod.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         unsafe{&$variable as *const _ as *mut _}
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/common/list.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe 
[INFO] [stdout]    |         ------ because it's nested under this `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/task/mod.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         list_init!(priority_list[i]);
[INFO] [stdout]    |         ----------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `get_pointer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `task_list`
[INFO] [stdout]   --> src/task/mod.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | static mut task_list: list_node = list_node::new();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_next_task`
[INFO] [stdout]   --> src/task/mod.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn get_next_task() -> Option<&'static mut task_t>
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `task_dispatch`
[INFO] [stdout]   --> src/task/mod.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn task_dispatch()
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dreamos` due to 3 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "42ed6f843c9bcf554a25069bc32bcd6bafb3a254069caaa6d2b40cb4343fe26e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42ed6f843c9bcf554a25069bc32bcd6bafb3a254069caaa6d2b40cb4343fe26e", kill_on_drop: false }`
[INFO] [stdout] 42ed6f843c9bcf554a25069bc32bcd6bafb3a254069caaa6d2b40cb4343fe26e