[INFO] updating cached repository https://github.com/jcc333/blood-sucker
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c107a0771f711193919c54fe1d1330c8e39ac4b
[INFO] testing jcc333/blood-sucker against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcc333%2Fblood-sucker" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jcc333/blood-sucker on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jcc333/blood-sucker
[INFO] finished tweaking git repo https://github.com/jcc333/blood-sucker
[INFO] tweaked toml for git repo https://github.com/jcc333/blood-sucker written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/jcc333/blood-sucker already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: unused manifest key: package.repo
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 1b7f4699f4f2176a7d6514cd01b244f3ffb019cbfbfef778d8b38dd1209c262f
[INFO] running `"docker" "start" "-a" "1b7f4699f4f2176a7d6514cd01b244f3ffb019cbfbfef778d8b38dd1209c262f"`
[INFO] [stderr] warning: unused manifest key: package.repo
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-fs v0.1.5
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio v0.1.15
[INFO] [stderr]    Compiling mqtt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(try_from)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/mqtt/serde.rs:7:30
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn ser(&self, sink: &mut Write) -> Result<usize>;
[INFO] [stderr]   |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqtt/serde.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn de(source: &mut Read) -> Result<(Self, usize)>;
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqtt/qos.rs:45:30
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn ser(&self, sink: &mut Write) -> Result<usize> {
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqtt/qos.rs:54:24
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn de(source: &mut Read) -> Result<(QualityOfService, usize)> {
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqtt/remaining_length.rs:35:30
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn ser(&self, sink: &mut Write) -> Result<usize> {
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqtt/remaining_length.rs:55:24
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn de(source: &mut Read) -> Result<(Self, usize)> {
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqtt/variable_header.rs:57:30
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn ser(&self, sink: &mut Write) -> Result<usize> {
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqtt/variable_header.rs:61:24
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn de(source: &mut Read) -> Result<(Self, usize)> {
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqtt/fixed_header.rs:39:30
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn ser(&self, sink: &mut Write) -> Result<usize> {
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqtt/fixed_header.rs:45:24
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn de(source: &mut Read) -> Result<(Self, usize)> {
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqtt/payload.rs:87:30
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn ser(&self, sink: &mut Write) -> Result<usize> {
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mqtt/payload.rs:91:24
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn de(source: &mut Read) -> Result<(Self, usize)> {
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/mqtt/message.rs:198:30
[INFO] [stderr]     |
[INFO] [stderr] 198 |     fn ser(&self, sink: &mut Write) -> Result<usize> {
[INFO] [stderr]     |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/mqtt/message.rs:214:24
[INFO] [stderr]     |
[INFO] [stderr] 214 |     fn de(source: &mut Read) -> Result<(Self, usize)> {
[INFO] [stderr]     |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `mqtt`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1b7f4699f4f2176a7d6514cd01b244f3ffb019cbfbfef778d8b38dd1209c262f"`
[INFO] running `"docker" "rm" "-f" "1b7f4699f4f2176a7d6514cd01b244f3ffb019cbfbfef778d8b38dd1209c262f"`
[INFO] [stdout] 1b7f4699f4f2176a7d6514cd01b244f3ffb019cbfbfef778d8b38dd1209c262f