[INFO] fetching crate staticvec 0.10.2...
[INFO] checking staticvec-0.10.2 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate staticvec 0.10.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate staticvec 0.10.2 on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate staticvec 0.10.2
[INFO] removed 3 missing examples
[INFO] removed 3 missing tests
[INFO] finished tweaking crates.io crate staticvec 0.10.2
[INFO] tweaked toml for crates.io crate staticvec 0.10.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate staticvec 0.10.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6a46c2bebd282187e1588a633def316cd12d3e07eefc877c1dfa3fa6cbcf62c
[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" "a6a46c2bebd282187e1588a633def316cd12d3e07eefc877c1dfa3fa6cbcf62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6a46c2bebd282187e1588a633def316cd12d3e07eefc877c1dfa3fa6cbcf62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6a46c2bebd282187e1588a633def316cd12d3e07eefc877c1dfa3fa6cbcf62c", kill_on_drop: false }`
[INFO] [stdout] a6a46c2bebd282187e1588a633def316cd12d3e07eefc877c1dfa3fa6cbcf62c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a039cf519f5f801da7cc6169ca81e88d13ba51fd03987b5ffcbea7e2f3094bc5
[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" "a039cf519f5f801da7cc6169ca81e88d13ba51fd03987b5ffcbea7e2f3094bc5", kill_on_drop: false }`
[INFO] [stderr]     Checking cool_asserts v1.0.2
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking staticvec v0.10.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `get_mut` found for union `core::mem::MaybeUninit<[T; N2]>` in the current scope
[INFO] [stdout]    --> src/lib.rs:206:42
[INFO] [stdout]     |
[INFO] [stdout] 206 |             ptr::drop_in_place(forgotten.get_mut().get_unchecked_mut(N2.min(N)..N2));
[INFO] [stdout]     |                                          ^^^^^^^ method not found in `core::mem::MaybeUninit<[T; N2]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_mut` found for union `core::mem::MaybeUninit<[T; N2]>` in the current scope
[INFO] [stdout]    --> src/lib.rs:206:42
[INFO] [stdout]     |
[INFO] [stdout] 206 |             ptr::drop_in_place(forgotten.get_mut().get_unchecked_mut(N2.min(N)..N2));
[INFO] [stdout]     |                                          ^^^^^^^ method not found in `core::mem::MaybeUninit<[T; N2]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_mut` found for union `core::mem::MaybeUninit<StaticVec<T, N1>>` in the current scope
[INFO] [stdout]    --> src/trait_impls.rs:221:12
[INFO] [stdout]     |
[INFO] [stdout] 221 |           .get_mut()
[INFO] [stdout]     |            ^^^^^^^ method not found in `core::mem::MaybeUninit<StaticVec<T, N1>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_mut` found for union `core::mem::MaybeUninit<StaticVec<T, N1>>` in the current scope
[INFO] [stdout]    --> src/trait_impls.rs:241:16
[INFO] [stdout]     |
[INFO] [stdout] 241 |               .get_mut()
[INFO] [stdout]     |                ^^^^^^^ method not found in `core::mem::MaybeUninit<StaticVec<T, N1>>`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `staticvec`.
[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[E0599]: no method named `get_mut` found for union `core::mem::MaybeUninit<StaticVec<T, N1>>` in the current scope
[INFO] [stdout]    --> src/trait_impls.rs:221:12
[INFO] [stdout]     |
[INFO] [stdout] 221 |           .get_mut()
[INFO] [stdout]     |            ^^^^^^^ method not found in `core::mem::MaybeUninit<StaticVec<T, N1>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_mut` found for union `core::mem::MaybeUninit<StaticVec<T, N1>>` in the current scope
[INFO] [stdout]    --> src/trait_impls.rs:241:16
[INFO] [stdout]     |
[INFO] [stdout] 241 |               .get_mut()
[INFO] [stdout]     |                ^^^^^^^ method not found in `core::mem::MaybeUninit<StaticVec<T, N1>>`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a039cf519f5f801da7cc6169ca81e88d13ba51fd03987b5ffcbea7e2f3094bc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a039cf519f5f801da7cc6169ca81e88d13ba51fd03987b5ffcbea7e2f3094bc5", kill_on_drop: false }`
[INFO] [stdout] a039cf519f5f801da7cc6169ca81e88d13ba51fd03987b5ffcbea7e2f3094bc5