[INFO] fetching crate sharedmem 0.1.1...
[INFO] checking sharedmem-0.1.1 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate sharedmem 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sharedmem 0.1.1 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sharedmem 0.1.1
[INFO] finished tweaking crates.io crate sharedmem 0.1.1
[INFO] tweaked toml for crates.io crate sharedmem 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2fae7a2ff0ac2e493983a1c44d2c8b7e6fc0da81025db7f84e1a18645e4f10af
[INFO] running `Command { std: "docker" "start" "-a" "2fae7a2ff0ac2e493983a1c44d2c8b7e6fc0da81025db7f84e1a18645e4f10af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fae7a2ff0ac2e493983a1c44d2c8b7e6fc0da81025db7f84e1a18645e4f10af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fae7a2ff0ac2e493983a1c44d2c8b7e6fc0da81025db7f84e1a18645e4f10af", kill_on_drop: false }`
[INFO] [stdout] 2fae7a2ff0ac2e493983a1c44d2c8b7e6fc0da81025db7f84e1a18645e4f10af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4a4ef7d0d00704e7005efd34000b1ceb1874adc2ca23be871f8e70ff375848ed
[INFO] running `Command { std: "docker" "start" "-a" "4a4ef7d0d00704e7005efd34000b1ceb1874adc2ca23be871f8e70ff375848ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking memmap v0.5.2
[INFO] [stderr]     Checking sharedmem v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:85:20
[INFO] [stdout]    |
[INFO] [stdout] 85 |   buf:  Rc<RefCell<DerefMut<Target=[T]>>>,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DerefMut<Target=[T]>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let buf: Rc<RefCell<DerefMut<Target=[T]>>> = Rc::new(RefCell::new(buf));
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DerefMut<Target=[T]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:116:20
[INFO] [stdout]     |
[INFO] [stdout] 116 |   buf:  Rc<RefCell<DerefMut<Target=[T]>>>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DerefMut<Target=[T]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 |   buf:  Arc<Deref<Target=[T]> + Send + Sync>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Deref<Target=[T]> + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:136:18
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let buf: Arc<Deref<Target=[T]> + Send + Sync> = Arc::new(buf);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Deref<Target=[T]> + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |   buf:  Arc<Deref<Target=[T]>>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Deref<Target=[T]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:85:20
[INFO] [stdout]    |
[INFO] [stdout] 85 |   buf:  Rc<RefCell<DerefMut<Target=[T]>>>,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DerefMut<Target=[T]>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let buf: Rc<RefCell<DerefMut<Target=[T]>>> = Rc::new(RefCell::new(buf));
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DerefMut<Target=[T]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:116:20
[INFO] [stdout]     |
[INFO] [stdout] 116 |   buf:  Rc<RefCell<DerefMut<Target=[T]>>>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn DerefMut<Target=[T]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 |   buf:  Arc<Deref<Target=[T]> + Send + Sync>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Deref<Target=[T]> + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:136:18
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let buf: Arc<Deref<Target=[T]> + Send + Sync> = Arc::new(buf);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Deref<Target=[T]> + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |   buf:  Arc<Deref<Target=[T]>>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Deref<Target=[T]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut raw_s = unsafe { self.map.as_mut_slice() };
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut raw_s = unsafe { self.map.as_mut_slice() };
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "4a4ef7d0d00704e7005efd34000b1ceb1874adc2ca23be871f8e70ff375848ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a4ef7d0d00704e7005efd34000b1ceb1874adc2ca23be871f8e70ff375848ed", kill_on_drop: false }`
[INFO] [stdout] 4a4ef7d0d00704e7005efd34000b1ceb1874adc2ca23be871f8e70ff375848ed