[INFO] updating cached repository https://github.com/ThePerkinrex/PercOSv2
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2fb6aab6c7825a23db2c7b5a3af6dc7a5b0fa442
[INFO] checking ThePerkinrex/PercOSv2 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThePerkinrex%2FPercOSv2" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/ThePerkinrex/PercOSv2 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ThePerkinrex/PercOSv2
[INFO] finished tweaking git repo https://github.com/ThePerkinrex/PercOSv2
[INFO] tweaked toml for git repo https://github.com/ThePerkinrex/PercOSv2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ThePerkinrex/PercOSv2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b79739066ec1d48f5008ff9f7c9a311b39ef43586b6c9c1a53fe2123a26ae943
[INFO] running `"docker" "start" "-a" "b79739066ec1d48f5008ff9f7c9a311b39ef43586b6c9c1a53fe2123a26ae943"`
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking bit_field v0.7.0
[INFO] [stderr]     Checking spin v0.4.9
[INFO] [stderr]     Checking rlibc v1.0.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking volatile v0.2.4
[INFO] [stderr]     Checking cpuio v0.2.0
[INFO] [stderr]     Checking multiboot2 v0.1.0
[INFO] [stderr]     Checking x86_64 v0.1.2
[INFO] [stderr]     Checking percos v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(panic_implementation)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: subsumed by `#[panic_handler]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / bitflags! {
[INFO] [stderr] 5  | |     pub struct EntryFlags: u64 {
[INFO] [stderr] 6  | |         const PRESENT =         1 << 0;
[INFO] [stderr] 7  | |         const WRITABLE =        1 << 1;
[INFO] [stderr] ...  |
[INFO] [stderr] 16 | |     }
[INFO] [stderr] 17 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / bitflags! {
[INFO] [stderr] 5  | |     pub struct EntryFlags: u64 {
[INFO] [stderr] 6  | |         const PRESENT =         1 << 0;
[INFO] [stderr] 7  | |         const WRITABLE =        1 << 1;
[INFO] [stderr] ...  |
[INFO] [stderr] 16 | |     }
[INFO] [stderr] 17 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(panic_implementation)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: subsumed by `#[panic_handler]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / bitflags! {
[INFO] [stderr] 5  | |     pub struct EntryFlags: u64 {
[INFO] [stderr] 6  | |         const PRESENT =         1 << 0;
[INFO] [stderr] 7  | |         const WRITABLE =        1 << 1;
[INFO] [stderr] ...  |
[INFO] [stderr] 16 | |     }
[INFO] [stderr] 17 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::fmt::Debug`
[INFO] [stderr]  --> src/shell/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::fmt::Debug;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/keyboard.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |         ((self.mod_flags & flag) != 0)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `memory::FrameAllocator`
[INFO] [stderr]   --> src/lib.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | use memory::FrameAllocator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0152]: found duplicate lang item `eh_personality`
[INFO] [stderr]   --> src/lib.rs:86:1
[INFO] [stderr]    |
[INFO] [stderr] 86 | pub extern fn eh_personality() {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the lang item is first defined in crate `panic_unwind` (which `std` depends on)
[INFO] [stderr] 
[INFO] [stderr] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stderr]    --> src/lib.rs:89:1
[INFO] [stderr]     |
[INFO] [stderr] 89  | / pub extern fn panic_fmt(pi: &PanicInfo) -> !{
[INFO] [stderr] 90  | |     if pi.message().is_some() && pi.location().is_some(){
[INFO] [stderr] 91  | |         panic_print!("A PercOS error occured because: {}\nat {}", pi.message().unwrap(), pi.location().unwrap());
[INFO] [stderr] 92  | |     }else if pi.message().is_some() {
[INFO] [stderr] ...   |
[INFO] [stderr] 99  | |     loop{}
[INFO] [stderr] 100 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / bitflags! {
[INFO] [stderr] 5  | |     pub struct EntryFlags: u64 {
[INFO] [stderr] 6  | |         const PRESENT =         1 << 0;
[INFO] [stderr] 7  | |         const WRITABLE =        1 << 1;
[INFO] [stderr] ...  |
[INFO] [stderr] 16 | |     }
[INFO] [stderr] 17 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / bitflags! {
[INFO] [stderr] 5  | |     pub struct EntryFlags: u64 {
[INFO] [stderr] 6  | |         const PRESENT =         1 << 0;
[INFO] [stderr] 7  | |         const WRITABLE =        1 << 1;
[INFO] [stderr] ...  |
[INFO] [stderr] 16 | |     }
[INFO] [stderr] 17 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/memory/paging/entry.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / bitflags! {
[INFO] [stderr] 5  | |     pub struct EntryFlags: u64 {
[INFO] [stderr] 6  | |         const PRESENT =         1 << 0;
[INFO] [stderr] 7  | |         const WRITABLE =        1 << 1;
[INFO] [stderr] ...  |
[INFO] [stderr] 16 | |     }
[INFO] [stderr] 17 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::fmt::Debug`
[INFO] [stderr]  --> src/shell/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::fmt::Debug;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/keyboard.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |         ((self.mod_flags & flag) != 0)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `memory::FrameAllocator`
[INFO] [stderr]   --> src/lib.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | use memory::FrameAllocator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0557`.
[INFO] [stderr] error: could not compile `percos`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 3 previous errors; 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0152, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0152`.
[INFO] [stderr] error: could not compile `percos`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b79739066ec1d48f5008ff9f7c9a311b39ef43586b6c9c1a53fe2123a26ae943"`
[INFO] running `"docker" "rm" "-f" "b79739066ec1d48f5008ff9f7c9a311b39ef43586b6c9c1a53fe2123a26ae943"`
[INFO] [stdout] b79739066ec1d48f5008ff9f7c9a311b39ef43586b6c9c1a53fe2123a26ae943