[INFO] fetching crate shared-data 0.0.2...
[INFO] testing shared-data-0.0.2 against 1.75.0 for beta-1.76-3
[INFO] extracting crate shared-data 0.0.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate shared-data 0.0.2 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 shared-data 0.0.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate shared-data 0.0.2
[INFO] tweaked toml for crates.io crate shared-data 0.0.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate shared-data 0.0.2 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 44a68104e737552e5c491fbb439668333182b8fbcd39f01034fe03e1c23387a5
[INFO] running `Command { std: "docker" "start" "-a" "44a68104e737552e5c491fbb439668333182b8fbcd39f01034fe03e1c23387a5", kill_on_drop: false }`
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[INFO] [stderr]    Compiling thread_local v0.3.6
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[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/atomic_shared_address.rs:33:29
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let result = self.0.compare_and_swap(current, new, order);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/atomic_shared_address_range.rs:35:29
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let result = self.0.compare_and_swap(current, new, order);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/shared_option.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .compare_and_swap(UNOCCUPIED, RESERVED, Ordering::SeqCst)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/shared_option.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |             .compare_and_swap(OCCUPIED, RESERVED, Ordering::SeqCst)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/shared_rc.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 | /             mem::replace(
[INFO] [stdout] 92 | |                 &mut self.0,
[INFO] [stdout] 93 | |                 ManuallyDrop::new(SharedBox::unchecked_from_address(SharedAddressRange::null())),
[INFO] [stdout] 94 | |             );
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let _ = mem::replace(
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]    --> src/unsafe_code.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let this = &self.2 as *const SharedMem as *mut SharedMem;
[INFO] [stdout]     |                    --------------------------------------------- casting happend here
[INFO] [stdout] 138 |         let this = unsafe { &mut *this };
[INFO] [stdout]     |                             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]     = note: `#[warn(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]    --> src/unsafe_code.rs:149:29
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let this = &self.2 as *const SharedMem as *mut SharedMem;
[INFO] [stdout]     |                    --------------------------------------------- casting happend here
[INFO] [stdout] 149 |         let this = unsafe { &mut *this };
[INFO] [stdout]     |                             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.48s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "44a68104e737552e5c491fbb439668333182b8fbcd39f01034fe03e1c23387a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44a68104e737552e5c491fbb439668333182b8fbcd39f01034fe03e1c23387a5", kill_on_drop: false }`
[INFO] [stdout] 44a68104e737552e5c491fbb439668333182b8fbcd39f01034fe03e1c23387a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d993dda2bd34921eeef151b0a9f6fc01e7624645055bb551e6ed29a6a87a749
[INFO] running `Command { std: "docker" "start" "-a" "1d993dda2bd34921eeef151b0a9f6fc01e7624645055bb551e6ed29a6a87a749", kill_on_drop: false }`
[INFO] [stderr]    Compiling shared-data v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/atomic_shared_address.rs:33:29
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let result = self.0.compare_and_swap(current, new, order);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/atomic_shared_address_range.rs:35:29
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let result = self.0.compare_and_swap(current, new, order);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/shared_option.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .compare_and_swap(UNOCCUPIED, RESERVED, Ordering::SeqCst)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/shared_option.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |             .compare_and_swap(OCCUPIED, RESERVED, Ordering::SeqCst)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/shared_rc.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 | /             mem::replace(
[INFO] [stdout] 92 | |                 &mut self.0,
[INFO] [stdout] 93 | |                 ManuallyDrop::new(SharedBox::unchecked_from_address(SharedAddressRange::null())),
[INFO] [stdout] 94 | |             );
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let _ = mem::replace(
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]    --> src/unsafe_code.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let this = &self.2 as *const SharedMem as *mut SharedMem;
[INFO] [stdout]     |                    --------------------------------------------- casting happend here
[INFO] [stdout] 138 |         let this = unsafe { &mut *this };
[INFO] [stdout]     |                             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]     = note: `#[warn(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]    --> src/unsafe_code.rs:149:29
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let this = &self.2 as *const SharedMem as *mut SharedMem;
[INFO] [stdout]     |                    --------------------------------------------- casting happend here
[INFO] [stdout] 149 |         let this = unsafe { &mut *this };
[INFO] [stdout]     |                             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/atomic_shared_address.rs:33:29
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let result = self.0.compare_and_swap(current, new, order);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/atomic_shared_address_range.rs:35:29
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let result = self.0.compare_and_swap(current, new, order);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/shared_option.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .compare_and_swap(UNOCCUPIED, RESERVED, Ordering::SeqCst)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/shared_option.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |             .compare_and_swap(OCCUPIED, RESERVED, Ordering::SeqCst)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/shared_rc.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 | /             mem::replace(
[INFO] [stdout] 92 | |                 &mut self.0,
[INFO] [stdout] 93 | |                 ManuallyDrop::new(SharedBox::unchecked_from_address(SharedAddressRange::null())),
[INFO] [stdout] 94 | |             );
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let _ = mem::replace(
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]    --> src/unsafe_code.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let this = &self.2 as *const SharedMem as *mut SharedMem;
[INFO] [stdout]     |                    --------------------------------------------- casting happend here
[INFO] [stdout] 138 |         let this = unsafe { &mut *this };
[INFO] [stdout]     |                             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]     = note: `#[warn(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]    --> src/unsafe_code.rs:149:29
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let this = &self.2 as *const SharedMem as *mut SharedMem;
[INFO] [stdout]     |                    --------------------------------------------- casting happend here
[INFO] [stdout] 149 |         let this = unsafe { &mut *this };
[INFO] [stdout]     |                             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "1d993dda2bd34921eeef151b0a9f6fc01e7624645055bb551e6ed29a6a87a749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d993dda2bd34921eeef151b0a9f6fc01e7624645055bb551e6ed29a6a87a749", kill_on_drop: false }`
[INFO] [stdout] 1d993dda2bd34921eeef151b0a9f6fc01e7624645055bb551e6ed29a6a87a749
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3b543426ae6f1e5e38260fee5cd072e5b1524126f5c2ffe8d583f23cbeeb2b80
[INFO] running `Command { std: "docker" "start" "-a" "3b543426ae6f1e5e38260fee5cd072e5b1524126f5c2ffe8d583f23cbeeb2b80", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/atomic_shared_address.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let result = self.0.compare_and_swap(current, new, order);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/atomic_shared_address_range.rs:35:29
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let result = self.0.compare_and_swap(current, new, order);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/shared_option.rs:47:14
[INFO] [stderr]    |
[INFO] [stderr] 47 |             .compare_and_swap(UNOCCUPIED, RESERVED, Ordering::SeqCst)
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/shared_option.rs:61:14
[INFO] [stderr]    |
[INFO] [stderr] 61 |             .compare_and_swap(OCCUPIED, RESERVED, Ordering::SeqCst)
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/shared_rc.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 | /             mem::replace(
[INFO] [stderr] 92 | |                 &mut self.0,
[INFO] [stderr] 93 | |                 ManuallyDrop::new(SharedBox::unchecked_from_address(SharedAddressRange::null())),
[INFO] [stderr] 94 | |             );
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let _ = mem::replace(
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stderr]    --> src/unsafe_code.rs:138:29
[INFO] [stderr]     |
[INFO] [stderr] 137 |         let this = &self.2 as *const SharedMem as *mut SharedMem;
[INFO] [stderr]     |                    --------------------------------------------- casting happend here
[INFO] [stderr] 138 |         let this = unsafe { &mut *this };
[INFO] [stderr]     |                             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stderr]     = note: `#[warn(invalid_reference_casting)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stderr]    --> src/unsafe_code.rs:149:29
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let this = &self.2 as *const SharedMem as *mut SharedMem;
[INFO] [stderr]     |                    --------------------------------------------- casting happend here
[INFO] [stderr] 149 |         let this = unsafe { &mut *this };
[INFO] [stderr]     |                             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `shared-data` (lib) generated 7 warnings
[INFO] [stderr] warning: `shared-data` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/shared_data-d094a099bc13a6e3)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test shared_vec::test_vector ... ok
[INFO] [stdout] test shared_rc::test_rc ... ok
[INFO] [stdout] test shared_box::test_one_box ... ok
[INFO] [stdout] test shared_box::test_five_boxes ... ok
[INFO] [stdout] test shared_channel::test_channels ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration/mod.rs (/opt/rustwide/target/debug/deps/integration-fcb3d72874e11386)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_vector ... ok
[INFO] [stdout] 	Found new event "Auto"
[INFO] [stderr] thread 'main' panicked at tests/integration/tests.rs:45:5:
[INFO] [stderr] assertion `left == right` failed
[INFO] [stderr]   left: 1
[INFO] [stderr]  right: 2
[INFO] [stderr] stack backtrace:
[INFO] [stdout] 	Found new event "Auto"
[INFO] [stdout] test tests::test_shared_box ... ok
[INFO] [stderr]    0:     0x557de53055ac - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]    1:     0x557de53055ac - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout] 	Found new event "Auto"
[INFO] [stdout] test tests::test_setup_success ... ok
[INFO] [stderr]    2:     0x557de53055ac - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x557de53055ac - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]    4:     0x557de5325e10 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]    5:     0x557de5325e10 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]    6:     0x557de530382f - std::io::Write::write_fmt::h5fc9997dfe05f882
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stderr]    7:     0x557de5305394 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]    8:     0x557de5305394 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]    9:     0x557de53068a7 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stderr]   10:     0x557de530660f - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:292:9
[INFO] [stderr]   11:     0x557de5306d28 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:779:13
[INFO] [stderr]   12:     0x557de5306c0e - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stderr]   13:     0x557de5305a76 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stderr]   14:     0x557de5306972 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stderr]   15:     0x557de51bc7f5 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stderr]   16:     0x557de51bcbcb - core::panicking::assert_failed_inner::h0bba8b7c26ee4492
[INFO] [stderr]   17:     0x557de52d30fe - core::panicking::assert_failed::h5d0826256a76bd8d
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:279:5
[INFO] [stderr]   18:     0x557de51be1df - child::tests::run_fail::h90844b9024b59110
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration/tests.rs:45:5
[INFO] [stderr]   19:     0x557de51be0fb - child::tests::ChildId::run::hd4201bd476c0d9ea
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration/tests.rs:30:30
[INFO] [stderr]   20:     0x557de51be010 - child::harness::child::h41bd5a263633879d
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration/harness.rs:56:5
[INFO] [stderr]   21:     0x557de51be417 - child::main::he3c821d573c0a4b3
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration/child.rs:13:5
[INFO] [stderr]   22:     0x557de51bd3bb - core::ops::function::FnOnce::call_once::h5cdbe455210bacf5
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   23:     0x557de51bd2de - std::sys_common::backtrace::__rust_begin_short_backtrace::h6d352bfe95f0bc95
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stderr]   24:     0x557de51bd351 - std::rt::lang_start::{{closure}}::h7e1d8fb3228a232d
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/rt.rs:167:18
[INFO] [stderr]   25:     0x557de5300087 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd95060ecd5e1ca24
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:284:13
[INFO] [stderr]   26:     0x557de5300087 - std::panicking::try::do_call::h6e8cf51db32a6e4b
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stderr]   27:     0x557de5300087 - std::panicking::try::h3a52eefe24fe3c29
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stderr]   28:     0x557de5300087 - std::panic::catch_unwind::h24c28c23c02c3841
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stderr]   29:     0x557de5300087 - std::rt::lang_start_internal::{{closure}}::h705d3c9cbc06ef47
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/rt.rs:148:48
[INFO] [stderr]   30:     0x557de5300087 - std::panicking::try::do_call::ha21f52ba13158470
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stderr]   31:     0x557de5300087 - std::panicking::try::h5581346bf6aeb1f8
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stderr]   32:     0x557de5300087 - std::panic::catch_unwind::h7919645a6b72e25b
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stderr]   33:     0x557de5300087 - std::rt::lang_start_internal::h12de51168669836e
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/rt.rs:148:20
[INFO] [stderr]   34:     0x557de51bd32a - std::rt::lang_start::h984819aa387fc917
[INFO] [stderr]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/rt.rs:166:17
[INFO] [stderr]   35:     0x557de51be53e - main
[INFO] [stderr]   36:     0x7f4fef0bcd90 - <unknown>
[INFO] [stderr]   37:     0x7f4fef0bce40 - __libc_start_main
[INFO] [stderr]   38:     0x557de51bd045 - _start
[INFO] [stderr]   39:                0x0 - <unknown>
[INFO] [stdout] test tests::test_setup_failure ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests shared-data
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3b543426ae6f1e5e38260fee5cd072e5b1524126f5c2ffe8d583f23cbeeb2b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b543426ae6f1e5e38260fee5cd072e5b1524126f5c2ffe8d583f23cbeeb2b80", kill_on_drop: false }`
[INFO] [stdout] 3b543426ae6f1e5e38260fee5cd072e5b1524126f5c2ffe8d583f23cbeeb2b80
