[INFO] fetching crate rust_mc_proto 0.1.19...
[INFO] checking rust_mc_proto-0.1.19 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rust_mc_proto 0.1.19 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rust_mc_proto 0.1.19
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rust_mc_proto 0.1.19
[INFO] tweaked toml for crates.io crate rust_mc_proto 0.1.19 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_mc_proto 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 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] 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] 37d3186e0f4cb6f40548292367558e1b5697c47124f1d830d9889dc300fa5814
[INFO] running `Command { std: "docker" "start" "-a" "37d3186e0f4cb6f40548292367558e1b5697c47124f1d830d9889dc300fa5814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37d3186e0f4cb6f40548292367558e1b5697c47124f1d830d9889dc300fa5814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37d3186e0f4cb6f40548292367558e1b5697c47124f1d830d9889dc300fa5814", kill_on_drop: false }`
[INFO] [stdout] 37d3186e0f4cb6f40548292367558e1b5697c47124f1d830d9889dc300fa5814
[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] f79febcef241461989a6e569784c49b59710fa8236727bdfc1ce71d513ed302d
[INFO] running `Command { std: "docker" "start" "-a" "f79febcef241461989a6e569784c49b59710fa8236727bdfc1ce71d513ed302d", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking uuid v1.16.0
[INFO] [stderr]     Checking miniz_oxide v0.8.8
[INFO] [stderr]     Checking flate2 v1.1.1
[INFO] [stderr]     Checking rust_mc_proto 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:275:22
[INFO] [stdout]     |
[INFO] [stdout] 275 |             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:296:22
[INFO] [stdout]     |
[INFO] [stdout] 296 |             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:58:27
[INFO] [stdout]    |
[INFO] [stdout] 58 |         self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:62:27
[INFO] [stdout]    |
[INFO] [stdout] 62 |         self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:82:27
[INFO] [stdout]    |
[INFO] [stdout] 82 |         self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:86:27
[INFO] [stdout]    |
[INFO] [stdout] 86 |         self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:101:28
[INFO] [stdout]     |
[INFO] [stdout] 101 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:105:28
[INFO] [stdout]     |
[INFO] [stdout] 105 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:109:28
[INFO] [stdout]     |
[INFO] [stdout] 109 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:129:28
[INFO] [stdout]     |
[INFO] [stdout] 129 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:133:28
[INFO] [stdout]     |
[INFO] [stdout] 133 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:137:28
[INFO] [stdout]     |
[INFO] [stdout] 137 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_mc_proto` (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:275:22
[INFO] [stdout]     |
[INFO] [stdout] 275 |             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:296:22
[INFO] [stdout]     |
[INFO] [stdout] 296 |             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:58:27
[INFO] [stdout]    |
[INFO] [stdout] 58 |         self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:62:27
[INFO] [stdout]    |
[INFO] [stdout] 62 |         self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:82:27
[INFO] [stdout]    |
[INFO] [stdout] 82 |         self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:86:27
[INFO] [stdout]    |
[INFO] [stdout] 86 |         self.write_varint(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:101:28
[INFO] [stdout]     |
[INFO] [stdout] 101 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:105:28
[INFO] [stdout]     |
[INFO] [stdout] 105 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:109:28
[INFO] [stdout]     |
[INFO] [stdout] 109 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:129:28
[INFO] [stdout]     |
[INFO] [stdout] 129 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:133:28
[INFO] [stdout]     |
[INFO] [stdout] 133 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[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:137:28
[INFO] [stdout]     |
[INFO] [stdout] 137 |         self.write_varlong(val.try_into().map_err(|_| ProtocolError::VarIntError)?)
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_mc_proto` (lib test) due to 12 previous errors
[INFO] running `Command { std: "docker" "inspect" "f79febcef241461989a6e569784c49b59710fa8236727bdfc1ce71d513ed302d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f79febcef241461989a6e569784c49b59710fa8236727bdfc1ce71d513ed302d", kill_on_drop: false }`
[INFO] [stdout] f79febcef241461989a6e569784c49b59710fa8236727bdfc1ce71d513ed302d
