[INFO] fetching crate rust_mc_proto_tokio 0.1.19...
[INFO] checking rust_mc_proto_tokio-0.1.19 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rust_mc_proto_tokio 0.1.19 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rust_mc_proto_tokio 0.1.19
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rust_mc_proto_tokio 0.1.19
[INFO] tweaked toml for crates.io crate rust_mc_proto_tokio 0.1.19 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_mc_proto_tokio 0.1.19 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust_mc_proto_tokio 0.1.19 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29328b403ccfe88ccdc4e69c41296b0617573933c42b6dd033fbfb98a55e2a07
[INFO] running `Command { std: "docker" "start" "-a" "29328b403ccfe88ccdc4e69c41296b0617573933c42b6dd033fbfb98a55e2a07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29328b403ccfe88ccdc4e69c41296b0617573933c42b6dd033fbfb98a55e2a07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29328b403ccfe88ccdc4e69c41296b0617573933c42b6dd033fbfb98a55e2a07", kill_on_drop: false }`
[INFO] [stdout] 29328b403ccfe88ccdc4e69c41296b0617573933c42b6dd033fbfb98a55e2a07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30bc3864a7bac97d162d6b16af9988a15dec7fe4b20bb3788e71d3248197e5fc
[INFO] running `Command { std: "docker" "start" "-a" "30bc3864a7bac97d162d6b16af9988a15dec7fe4b20bb3788e71d3248197e5fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking miniz_oxide v0.8.8
[INFO] [stderr]     Checking uuid v1.16.0
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]     Checking flate2 v1.1.1
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking tokio v1.44.2
[INFO] [stderr]     Checking rust_mc_proto_tokio v0.1.19 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/data/reader.rs:281:22
[INFO] [stdout]     |
[INFO] [stdout] 281 |             value |= TryInto::<u32>::try_into(byte & 0x7F).map_err(|_| ProtocolError::VarIntError)? << position;
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/data/reader.rs:302:22
[INFO] [stdout]     |
[INFO] [stdout] 302 |             value |= TryInto::<u64>::try_into(byte & 0x7F).map_err(|_| ProtocolError::VarIntError)? << position;
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/data/writer.rs:57:40
[INFO] [stdout]    |
[INFO] [stdout] 57 |         async move { self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/data/writer.rs:61:40
[INFO] [stdout]    |
[INFO] [stdout] 61 |         async move { self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/data/writer.rs:81:40
[INFO] [stdout]    |
[INFO] [stdout] 81 |         async move { self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/data/writer.rs:85:40
[INFO] [stdout]    |
[INFO] [stdout] 85 |         async move { self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:100:41
[INFO] [stdout]     |
[INFO] [stdout] 100 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:104:41
[INFO] [stdout]     |
[INFO] [stdout] 104 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:108:41
[INFO] [stdout]     |
[INFO] [stdout] 108 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:128:41
[INFO] [stdout]     |
[INFO] [stdout] 128 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:132:41
[INFO] [stdout]     |
[INFO] [stdout] 132 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:136:41
[INFO] [stdout]     |
[INFO] [stdout] 136 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_mc_proto_tokio` (lib) due to 12 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/data/reader.rs:281:22
[INFO] [stdout]     |
[INFO] [stdout] 281 |             value |= TryInto::<u32>::try_into(byte & 0x7F).map_err(|_| ProtocolError::VarIntError)? << position;
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/data/reader.rs:302:22
[INFO] [stdout]     |
[INFO] [stdout] 302 |             value |= TryInto::<u64>::try_into(byte & 0x7F).map_err(|_| ProtocolError::VarIntError)? << position;
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/data/writer.rs:57:40
[INFO] [stdout]    |
[INFO] [stdout] 57 |         async move { self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/data/writer.rs:61:40
[INFO] [stdout]    |
[INFO] [stdout] 61 |         async move { self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/data/writer.rs:81:40
[INFO] [stdout]    |
[INFO] [stdout] 81 |         async move { self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/data/writer.rs:85:40
[INFO] [stdout]    |
[INFO] [stdout] 85 |         async move { self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:100:41
[INFO] [stdout]     |
[INFO] [stdout] 100 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:104:41
[INFO] [stdout]     |
[INFO] [stdout] 104 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:108:41
[INFO] [stdout]     |
[INFO] [stdout] 108 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:128:41
[INFO] [stdout]     |
[INFO] [stdout] 128 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:132:41
[INFO] [stdout]     |
[INFO] [stdout] 132 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/data/writer.rs:136:41
[INFO] [stdout]     |
[INFO] [stdout] 136 |         async move { self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?).await }
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_mc_proto_tokio` (lib test) due to 12 previous errors
[INFO] running `Command { std: "docker" "inspect" "30bc3864a7bac97d162d6b16af9988a15dec7fe4b20bb3788e71d3248197e5fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30bc3864a7bac97d162d6b16af9988a15dec7fe4b20bb3788e71d3248197e5fc", kill_on_drop: false }`
[INFO] [stdout] 30bc3864a7bac97d162d6b16af9988a15dec7fe4b20bb3788e71d3248197e5fc