[INFO] fetching crate drone-core 0.13.0...
[INFO] checking drone-core-0.13.0 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate drone-core 0.13.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate drone-core 0.13.0 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drone-core 0.13.0
[INFO] finished tweaking crates.io crate drone-core 0.13.0
[INFO] tweaked toml for crates.io crate drone-core 0.13.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `resolver` has been stabilized in the 1.51 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/resolver.html#resolver-versions for more information about using this feature.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 993a1c8468986407708fc20c6d43bbcd5f1935dab75494e9c2c9620fc9143326
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "993a1c8468986407708fc20c6d43bbcd5f1935dab75494e9c2c9620fc9143326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "993a1c8468986407708fc20c6d43bbcd5f1935dab75494e9c2c9620fc9143326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "993a1c8468986407708fc20c6d43bbcd5f1935dab75494e9c2c9620fc9143326", kill_on_drop: false }`
[INFO] [stdout] 993a1c8468986407708fc20c6d43bbcd5f1935dab75494e9c2c9620fc9143326
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78f241c17ebc82bc3426e914eed62c8d1bf49edb209888d447e94ac8d95c180a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "78f241c17ebc82bc3426e914eed62c8d1bf49edb209888d447e94ac8d95c180a", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `resolver` has been stabilized in the 1.51 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/resolver.html#resolver-versions for more information about using this feature.
[INFO] [stderr]     Checking drone-core v0.13.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `std`
[INFO] [stdout]   --> src/ffi/mod.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     use std::collections::hash_map::DefaultHasher;
[INFO] [stdout]    |         ^^^ use of undeclared crate or module `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `std`
[INFO] [stdout]    --> src/sync/mutex.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |     use std::{
[INFO] [stdout]     |         ^^^ use of undeclared crate or module `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `std`
[INFO] [stdout]    --> src/sync/rwlock.rs:283:9
[INFO] [stdout]     |
[INFO] [stdout] 283 |     use std::sync::{
[INFO] [stdout]     |         ^^^ use of undeclared crate or module `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std`
[INFO] [stdout]    --> src/sync/mutex.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |     use std::{
[INFO] [stdout]     |         ^^^ use of undeclared crate or module `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `format` in this scope
[INFO] [stdout]   --> src/ffi/mod.rs:94:76
[INFO] [stdout]    |
[INFO] [stdout] 94 |             assert_eq!(CStr::from_ptr(ptr).to_string_lossy(), Owned::<str>(format!("123\u{FFFD}")));
[INFO] [stdout]    |                                                                            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            alloc::format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `format` in this scope
[INFO] [stdout]   --> src/ffi/mod.rs:70:20
[INFO] [stdout]    |
[INFO] [stdout] 70 |         assert_eq!(format!("{:?}", s), r#""abc\x01\x02\n\xe2\x80\xa6\xff""#);
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            alloc::format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `vec` in this scope
[INFO] [stdout]   --> src/ffi/mod.rs:62:49
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let s = CString::from_vec_unchecked(vec![0]);
[INFO] [stdout]    |                                                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            alloc::vec
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `vec` in this scope
[INFO] [stdout]   --> src/ffi/mod.rs:56:30
[INFO] [stdout]    |
[INFO] [stdout] 56 |         assert!(CString::new(vec![0]).is_err());
[INFO] [stdout]    |                              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            alloc::vec
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DefaultHasher`
[INFO] [stdout]    --> src/ffi/mod.rs:113:21
[INFO] [stdout]     |
[INFO] [stdout] 113 |         let mut s = DefaultHasher::new();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ use of undeclared type `DefaultHasher`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DefaultHasher`
[INFO] [stdout]    --> src/ffi/mod.rs:116:21
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let mut s = DefaultHasher::new();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ use of undeclared type `DefaultHasher`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Ordering`
[INFO] [stdout]    --> src/sync/mutex.rs:228:37
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 self.0.fetch_add(1, Ordering::SeqCst);
[INFO] [stdout]     |                                     ^^^^^^^^ use of undeclared type `Ordering`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Ordering`
[INFO] [stdout]    --> src/sync/mutex.rs:233:35
[INFO] [stdout]     |
[INFO] [stdout] 233 |         assert_eq!(num_drops.load(Ordering::SeqCst), 0);
[INFO] [stdout]     |                                   ^^^^^^^^ use of undeclared type `Ordering`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Ordering`
[INFO] [stdout]    --> src/sync/mutex.rs:236:39
[INFO] [stdout]     |
[INFO] [stdout] 236 |             assert_eq!(num_drops.load(Ordering::SeqCst), 0);
[INFO] [stdout]     |                                       ^^^^^^^^ use of undeclared type `Ordering`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Ordering`
[INFO] [stdout]    --> src/sync/mutex.rs:238:35
[INFO] [stdout]     |
[INFO] [stdout] 238 |         assert_eq!(num_drops.load(Ordering::SeqCst), 1);
[INFO] [stdout]     |                                   ^^^^^^^^ use of undeclared type `Ordering`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Ordering`
[INFO] [stdout]    --> src/sync/rwlock.rs:328:37
[INFO] [stdout]     |
[INFO] [stdout] 328 |                 self.0.fetch_add(1, Ordering::SeqCst);
[INFO] [stdout]     |                                     ^^^^^^^^ use of undeclared type `Ordering`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Ordering`
[INFO] [stdout]    --> src/sync/rwlock.rs:333:35
[INFO] [stdout]     |
[INFO] [stdout] 333 |         assert_eq!(num_drops.load(Ordering::SeqCst), 0);
[INFO] [stdout]     |                                   ^^^^^^^^ use of undeclared type `Ordering`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Ordering`
[INFO] [stdout]    --> src/sync/rwlock.rs:336:39
[INFO] [stdout]     |
[INFO] [stdout] 336 |             assert_eq!(num_drops.load(Ordering::SeqCst), 0);
[INFO] [stdout]     |                                       ^^^^^^^^ use of undeclared type `Ordering`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Ordering`
[INFO] [stdout]    --> src/sync/rwlock.rs:338:35
[INFO] [stdout]     |
[INFO] [stdout] 338 |         assert_eq!(num_drops.load(Ordering::SeqCst), 1);
[INFO] [stdout]     |                                   ^^^^^^^^ use of undeclared type `Ordering`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Arc` in this scope
[INFO] [stdout]    --> src/sync/mutex.rs:225:20
[INFO] [stdout]     |
[INFO] [stdout] 225 |         struct Foo(Arc<AtomicUsize>);
[INFO] [stdout]     |                    ^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use alloc::sync::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::sync::spsc::ring::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/fib/chain.rs:50:42
[INFO] [stdout]    |
[INFO] [stdout] 50 |                         prev = self.head.compare_and_swap(curr, next, Ordering::Relaxed);
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `AtomicUsize` in this scope
[INFO] [stdout]    --> src/sync/mutex.rs:225:24
[INFO] [stdout]     |
[INFO] [stdout] 225 |         struct Foo(Arc<AtomicUsize>);
[INFO] [stdout]     |                        ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use core::sync::atomic::AtomicUsize;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::sync::rwlock::AtomicUsize;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/fib/chain.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |             if self.head.compare_and_swap(head, node, Ordering::Release) == head {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Arc`
[INFO] [stdout]    --> src/sync/mutex.rs:231:25
[INFO] [stdout]     |
[INFO] [stdout] 231 |         let num_drops = Arc::new(AtomicUsize::new(0));
[INFO] [stdout]     |                         ^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use alloc::sync::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::sync::spsc::ring::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `AtomicUsize`
[INFO] [stdout]    --> src/sync/mutex.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |         let num_drops = Arc::new(AtomicUsize::new(0));
[INFO] [stdout]     |                                  ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use core::sync::atomic::AtomicUsize;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::sync::rwlock::AtomicUsize;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Arc`
[INFO] [stdout]    --> src/sync/mutex.rs:250:19
[INFO] [stdout]     |
[INFO] [stdout] 250 |         let arc = Arc::new(Mutex::new(1));
[INFO] [stdout]     |                   ^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use alloc::sync::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::sync::spsc::ring::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Arc`
[INFO] [stdout]    --> src/sync/mutex.rs:251:20
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let arc2 = Arc::new(Mutex::new(arc));
[INFO] [stdout]     |                    ^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use alloc::sync::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::sync::spsc::ring::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `channel` in this scope
[INFO] [stdout]    --> src/sync/mutex.rs:252:24
[INFO] [stdout]     |
[INFO] [stdout] 252 |         let (tx, rx) = channel();
[INFO] [stdout]     |                        ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::sync::spsc::oneshot::channel;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::sync::spsc::pulse::channel;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::sync::spsc::ring::channel;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Arc` in this scope
[INFO] [stdout]    --> src/sync/rwlock.rs:325:20
[INFO] [stdout]     |
[INFO] [stdout] 325 |         struct Foo(Arc<AtomicUsize>);
[INFO] [stdout]     |                    ^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 282 |     use alloc::sync::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 282 |     use crate::sync::spsc::ring::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `AtomicUsize` in this scope
[INFO] [stdout]    --> src/sync/rwlock.rs:325:24
[INFO] [stdout]     |
[INFO] [stdout] 325 |         struct Foo(Arc<AtomicUsize>);
[INFO] [stdout]     |                        ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 282 |     use core::sync::atomic::AtomicUsize;
[INFO] [stdout]     |
[INFO] [stdout] 282 |     use crate::sync::rwlock::AtomicUsize;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Arc`
[INFO] [stdout]    --> src/sync/rwlock.rs:331:25
[INFO] [stdout]     |
[INFO] [stdout] 331 |         let num_drops = Arc::new(AtomicUsize::new(0));
[INFO] [stdout]     |                         ^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 282 |     use alloc::sync::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 282 |     use crate::sync::spsc::ring::Arc;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `AtomicUsize`
[INFO] [stdout]    --> src/sync/rwlock.rs:331:34
[INFO] [stdout]     |
[INFO] [stdout] 331 |         let num_drops = Arc::new(AtomicUsize::new(0));
[INFO] [stdout]     |                                  ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 282 |     use core::sync::atomic::AtomicUsize;
[INFO] [stdout]     |
[INFO] [stdout] 282 |     use crate::sync::rwlock::AtomicUsize;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/heap/pool.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 |             if self.free.compare_and_swap(curr, next, Ordering::AcqRel) == curr {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/heap/pool.rs:83:26
[INFO] [stdout]    |
[INFO] [stdout] 83 |             if self.free.compare_and_swap(curr, next, Ordering::AcqRel) == curr {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/heap/pool.rs:96:28
[INFO] [stdout]    |
[INFO] [stdout] 96 |             if self.uninit.compare_and_swap(curr, next, Ordering::Relaxed) == curr {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]  --> src/lang_items.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn begin_panic(pi: &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/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in the local crate (`drone_core`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `oom`
[INFO] [stdout]   --> src/lang_items.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn oom(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/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]    = note: second definition in the local crate (`drone_core`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/sync/rwlock.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 |             if self.state.compare_and_swap(current, current + 1, Ordering::Acquire) == current {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/sync/rwlock.rs:157:23
[INFO] [stdout]     |
[INFO] [stdout] 157 |         if self.state.compare_and_swap(NO_LOCK, WRITE_LOCK, Ordering::Acquire) == NO_LOCK {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/fib/chain.rs:50:42
[INFO] [stdout]    |
[INFO] [stdout] 50 |                         prev = self.head.compare_and_swap(curr, next, Ordering::Relaxed);
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/fib/chain.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |             if self.head.compare_and_swap(head, node, Ordering::Release) == head {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/heap/pool.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 |             if self.free.compare_and_swap(curr, next, Ordering::AcqRel) == curr {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/heap/pool.rs:83:26
[INFO] [stdout]    |
[INFO] [stdout] 83 |             if self.free.compare_and_swap(curr, next, Ordering::AcqRel) == curr {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/heap/pool.rs:96:28
[INFO] [stdout]    |
[INFO] [stdout] 96 |             if self.uninit.compare_and_swap(curr, next, Ordering::Relaxed) == curr {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `thr` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `thr` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `thr` depends on): `oom`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `thr` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `future` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `future` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `future` depends on): `oom`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `future` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `reg` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `reg` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `reg` depends on): `oom`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `reg` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `drone-core`
[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] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `bitfield` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `bitfield` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `bitfield` depends on): `oom`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `bitfield` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `AllocRef` in module `core::alloc`
[INFO] [stdout]   --> tests/heap.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / heap! {
[INFO] [stdout] 31 | |     /// Test doc attribute
[INFO] [stdout] 32 | |     #[doc = "test attribute"]
[INFO] [stdout] 33 | |     heap => pub Heap;
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^ not found in `core::alloc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `heap` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `heap` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `heap` depends on): `oom`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `heap` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/sync/rwlock.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 |             if self.state.compare_and_swap(current, current + 1, Ordering::Acquire) == current {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/sync/rwlock.rs:157:23
[INFO] [stdout]     |
[INFO] [stdout] 157 |         if self.state.compare_and_swap(NO_LOCK, WRITE_LOCK, Ordering::Acquire) == NO_LOCK {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hasher`
[INFO] [stdout]   --> src/ffi/mod.rs:30:28
[INFO] [stdout]    |
[INFO] [stdout] 30 |     use core::hash::{Hash, Hasher};
[INFO] [stdout]    |                            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 31 previous errors; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0152, E0412, E0425, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `periph` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `periph` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `drone_core` (which `periph` depends on): `oom`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `periph` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e3026a7ea720d3a3.rlib
[INFO] [stdout]   = note: second definition in `drone_core` loaded from /opt/rustwide/target/debug/deps/libdrone_core-dc0f956b479222c7.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "78f241c17ebc82bc3426e914eed62c8d1bf49edb209888d447e94ac8d95c180a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78f241c17ebc82bc3426e914eed62c8d1bf49edb209888d447e94ac8d95c180a", kill_on_drop: false }`
[INFO] [stdout] 78f241c17ebc82bc3426e914eed62c8d1bf49edb209888d447e94ac8d95c180a