[INFO] crate embedded-mqtt 0.1.0 is already in cache
[INFO] testing embedded-mqtt-0.1.0 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate embedded-mqtt 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate embedded-mqtt 0.1.0 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", 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-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a216b0fca74a4bc7e3ed915e2e1e2b47900b329de759d8a45a47f7be00d8560
[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" "5a216b0fca74a4bc7e3ed915e2e1e2b47900b329de759d8a45a47f7be00d8560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a216b0fca74a4bc7e3ed915e2e1e2b47900b329de759d8a45a47f7be00d8560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a216b0fca74a4bc7e3ed915e2e1e2b47900b329de759d8a45a47f7be00d8560", kill_on_drop: false }`
[INFO] [stdout] 5a216b0fca74a4bc7e3ed915e2e1e2b47900b329de759d8a45a47f7be00d8560
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f000b7855b44bf08a7da65d5dd1ffca6534355c953d8218986b1f525b437d7e
[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" "4f000b7855b44bf08a7da65d5dd1ffca6534355c953d8218986b1f525b437d7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "4f000b7855b44bf08a7da65d5dd1ffca6534355c953d8218986b1f525b437d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f000b7855b44bf08a7da65d5dd1ffca6534355c953d8218986b1f525b437d7e", kill_on_drop: false }`
[INFO] [stdout] 4f000b7855b44bf08a7da65d5dd1ffca6534355c953d8218986b1f525b437d7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 770a5c512453e25d473b762c4154ab4fee5009e9ce79367ad6f49619988ee3c2
[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" "770a5c512453e25d473b762c4154ab4fee5009e9ce79367ad6f49619988ee3c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[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]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling embedded-mqtt v0.1.0 (/opt/rustwide/workdir)
[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<std::vec::Vec<_>>` 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::ByteOrder`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/byteorder-1.3.4/src/lib.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 394 |     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::<std::vec::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::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<std::vec::Vec<_>>` 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::ByteOrder`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/byteorder-1.3.4/src/lib.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 394 |     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::<std::vec::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::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<std::vec::Vec<_>>` 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::ByteOrder`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/byteorder-1.3.4/src/lib.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 394 |     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::<std::vec::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::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`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "770a5c512453e25d473b762c4154ab4fee5009e9ce79367ad6f49619988ee3c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "770a5c512453e25d473b762c4154ab4fee5009e9ce79367ad6f49619988ee3c2", kill_on_drop: false }`
[INFO] [stdout] 770a5c512453e25d473b762c4154ab4fee5009e9ce79367ad6f49619988ee3c2