[INFO] fetching crate ndless-handler 0.3.0...
[INFO] checking ndless-handler-0.3.0 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate ndless-handler 0.3.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ndless-handler 0.3.0 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 ndless-handler 0.3.0
[INFO] finished tweaking crates.io crate ndless-handler 0.3.0
[INFO] tweaked toml for crates.io crate ndless-handler 0.3.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 5b78670fe216077dd332bd72cfa7ec43434f4a5c966ca65e7d4476cecd3aee41
[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" "5b78670fe216077dd332bd72cfa7ec43434f4a5c966ca65e7d4476cecd3aee41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b78670fe216077dd332bd72cfa7ec43434f4a5c966ca65e7d4476cecd3aee41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b78670fe216077dd332bd72cfa7ec43434f4a5c966ca65e7d4476cecd3aee41", kill_on_drop: false }`
[INFO] [stdout] 5b78670fe216077dd332bd72cfa7ec43434f4a5c966ca65e7d4476cecd3aee41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] ae2eff948bc0309b30d76e94ad4cbe00b9d26e92eb1b9ad4ca1c07ec61f2adf1
[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" "ae2eff948bc0309b30d76e94ad4cbe00b9d26e92eb1b9ad4ca1c07ec61f2adf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]     Checking cty v0.1.5
[INFO] [stderr]     Checking cty v0.2.1
[INFO] [stderr]    Compiling ndless-static-vars v2.1.0
[INFO] [stderr]     Checking ndless-sys v0.2.0
[INFO] [stderr]     Checking cstr_core v0.1.2
[INFO] [stderr]     Checking embedded-ffi v0.1.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling ndless-macros v0.4.0
[INFO] [stderr]     Checking ndless v0.8.6
[INFO] [stdout] error[E0599]: no method named `get_mut` found for union `core::mem::MaybeUninit<[u8; 8192]>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndless-0.8.6/src/file_io/io/util.rs:54:39
[INFO] [stdout]    |
[INFO] [stdout] 54 |         reader.initializer().initialize(buf.get_mut());
[INFO] [stdout]    |                                             ^^^^^^^ method not found in `core::mem::MaybeUninit<[u8; 8192]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_mut` found for union `core::mem::MaybeUninit<[u8; 8192]>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndless-0.8.6/src/file_io/io/util.rs:59:44
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let len = match reader.read(unsafe { buf.get_mut() }) {
[INFO] [stdout]    |                                                  ^^^^^^^ method not found in `core::mem::MaybeUninit<[u8; 8192]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_ref` found for union `core::mem::MaybeUninit<[u8; 8192]>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ndless-0.8.6/src/file_io/io/util.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |         writer.write_all(unsafe { &buf.get_ref()[..len] })?;
[INFO] [stdout]    |                                        ^^^^^^^ method not found in `core::mem::MaybeUninit<[u8; 8192]>`
[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 `ndless`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "ae2eff948bc0309b30d76e94ad4cbe00b9d26e92eb1b9ad4ca1c07ec61f2adf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae2eff948bc0309b30d76e94ad4cbe00b9d26e92eb1b9ad4ca1c07ec61f2adf1", kill_on_drop: false }`
[INFO] [stdout] ae2eff948bc0309b30d76e94ad4cbe00b9d26e92eb1b9ad4ca1c07ec61f2adf1