[INFO] fetching crate embedded-mqtt 0.1.0...
[INFO] checking embedded-mqtt-0.1.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate embedded-mqtt 0.1.0 into /workspace/builds/worker-95/source
[INFO] validating manifest of crates.io crate embedded-mqtt 0.1.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate embedded-mqtt 0.1.0
[INFO] finished tweaking crates.io crate embedded-mqtt 0.1.0
[INFO] tweaked toml for crates.io crate embedded-mqtt 0.1.0 written to /workspace/builds/worker-95/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdb1083cb1603f659e11df717a38ded021fd83a9a9472430ca1820489eda6174
[INFO] running `Command { std: "docker" "start" "-a" "cdb1083cb1603f659e11df717a38ded021fd83a9a9472430ca1820489eda6174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdb1083cb1603f659e11df717a38ded021fd83a9a9472430ca1820489eda6174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb1083cb1603f659e11df717a38ded021fd83a9a9472430ca1820489eda6174", kill_on_drop: false }`
[INFO] [stdout] cdb1083cb1603f659e11df717a38ded021fd83a9a9472430ca1820489eda6174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09009f7b372fb6fccc352a5bca6fb8e90278eb906c16a56b11b554a2ff38492a
[INFO] running `Command { std: "docker" "start" "-a" "09009f7b372fb6fccc352a5bca6fb8e90278eb906c16a56b11b554a2ff38492a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking embedded-mqtt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/variable_header/connect.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |             (offset + o)
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/variable_header/connect.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |             (offset + o)
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/variable_header/connect.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |             (offset + o)
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/variable_header/connect.rs:199:13
[INFO] [stdout]     |
[INFO] [stdout] 199 |             (offset + o)
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stdout] error[E0432]: unresolved import `byteorder::WriteBytesExt`
[INFO] [stdout]   --> src/codec/string.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     use byteorder::WriteBytesExt;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^ no `WriteBytesExt` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/variable_header/connect.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |             (offset + o)
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/variable_header/connect.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |             (offset + o)
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/variable_header/connect.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |             (offset + o)
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/variable_header/connect.rs:199:13
[INFO] [stdout]     |
[INFO] [stdout] 199 |             (offset + o)
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_u16` found for struct `std::io::Cursor` in the current scope
[INFO] [stdout]    --> src/codec/string.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |         buf.write_u16::<BigEndian>(inp.len() as u16).unwrap();
[INFO] [stdout]     |             ^^^^^^^^^ this is an associated function, not a method
[INFO] [stdout]     |
[INFO] [stdout]     = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout] note: the candidate is defined in the trait `ByteOrder`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/byteorder-1.4.3/src/lib.rs:383:5
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn write_u16(buf: &mut [u8], n: u16);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: use associated function syntax instead
[INFO] [stdout]     |
[INFO] [stdout] 121 |         std::io::Cursor::<Vec<_>>::write_u16::<BigEndian>(inp.len() as u16).unwrap();
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: disambiguate the associated function for the candidate
[INFO] [stdout]     |
[INFO] [stdout] 121 |         ByteOrder::write_u16(buf, inp.len() as u16).unwrap();
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_u16` found for struct `std::io::Cursor` in the current scope
[INFO] [stdout]    --> src/codec/string.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 133 |         buf.write_u16::<BigEndian>(inp.len() as u16).unwrap();
[INFO] [stdout]     |             ^^^^^^^^^ this is an associated function, not a method
[INFO] [stdout]     |
[INFO] [stdout]     = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout] note: the candidate is defined in the trait `ByteOrder`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/byteorder-1.4.3/src/lib.rs:383:5
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn write_u16(buf: &mut [u8], n: u16);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: use associated function syntax instead
[INFO] [stdout]     |
[INFO] [stdout] 133 |         std::io::Cursor::<Vec<_>>::write_u16::<BigEndian>(inp.len() as u16).unwrap();
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: disambiguate the associated function for the candidate
[INFO] [stdout]     |
[INFO] [stdout] 133 |         ByteOrder::write_u16(buf, inp.len() as u16).unwrap();
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_u16` found for struct `std::io::Cursor` in the current scope
[INFO] [stdout]    --> src/codec/string.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |         buf.write_u16::<BigEndian>(inp.len() as u16).unwrap();
[INFO] [stdout]     |             ^^^^^^^^^ this is an associated function, not a method
[INFO] [stdout]     |
[INFO] [stdout]     = note: found the following associated functions; to be used as methods, functions must have a `self` parameter
[INFO] [stdout] note: the candidate is defined in the trait `ByteOrder`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/byteorder-1.4.3/src/lib.rs:383:5
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn write_u16(buf: &mut [u8], n: u16);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: use associated function syntax instead
[INFO] [stdout]     |
[INFO] [stdout] 142 |         std::io::Cursor::<Vec<_>>::write_u16::<BigEndian>(inp.len() as u16).unwrap();
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: disambiguate the associated function for the candidate
[INFO] [stdout]     |
[INFO] [stdout] 142 |         ByteOrder::write_u16(buf, inp.len() as u16).unwrap();
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `embedded-mqtt` due to 5 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "09009f7b372fb6fccc352a5bca6fb8e90278eb906c16a56b11b554a2ff38492a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09009f7b372fb6fccc352a5bca6fb8e90278eb906c16a56b11b554a2ff38492a", kill_on_drop: false }`
[INFO] [stdout] 09009f7b372fb6fccc352a5bca6fb8e90278eb906c16a56b11b554a2ff38492a
