[INFO] fetching crate mt-interface 0.0.1-dev...
[INFO] testing mt-interface-0.0.1-dev against 1.91.0 for beta-1.92-2
[INFO] extracting crate mt-interface 0.0.1-dev into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate mt-interface 0.0.1-dev
[INFO] finished tweaking crates.io crate mt-interface 0.0.1-dev
[INFO] tweaked toml for crates.io crate mt-interface 0.0.1-dev written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mt-interface 0.0.1-dev on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 955924615ddaa9e489e4c09ebe1bf14654250c81be3cb12b86d1061edec473bd
[INFO] running `Command { std: "docker" "start" "-a" "955924615ddaa9e489e4c09ebe1bf14654250c81be3cb12b86d1061edec473bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "955924615ddaa9e489e4c09ebe1bf14654250c81be3cb12b86d1061edec473bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "955924615ddaa9e489e4c09ebe1bf14654250c81be3cb12b86d1061edec473bd", kill_on_drop: false }`
[INFO] [stdout] 955924615ddaa9e489e4c09ebe1bf14654250c81be3cb12b86d1061edec473bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7445bb554a976fde0495730705caae08e31428678c042d4c0bb3fc8160dd7f8f
[INFO] running `Command { std: "docker" "start" "-a" "7445bb554a976fde0495730705caae08e31428678c042d4c0bb3fc8160dd7f8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling mt-interface v0.0.1-dev (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `data_len`, `cmd`, and `data` are never read
[INFO] [stdout]   --> src/lib.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub struct MtCommand {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 75 |     data_len: u8,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 76 |     cmd: MtCommandId,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 77 |     data: [u8; 256],
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mt_cmd` and `fcs` are never read
[INFO] [stdout]   --> src/lib.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub struct GeneralSerialPacket {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 97 |     mt_cmd: MtCommand,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 98 |     fcs: u8,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_cmd` and `to_frame` are never used
[INFO] [stdout]    --> src/lib.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl GeneralSerialPacket {
[INFO] [stdout]     | ------------------------ associated items in this implementation
[INFO] [stdout] 102 |     fn from_cmd(mt_cmd: MtCommand) -> Self {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     fn to_frame(&self) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "7445bb554a976fde0495730705caae08e31428678c042d4c0bb3fc8160dd7f8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7445bb554a976fde0495730705caae08e31428678c042d4c0bb3fc8160dd7f8f", kill_on_drop: false }`
[INFO] [stdout] 7445bb554a976fde0495730705caae08e31428678c042d4c0bb3fc8160dd7f8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce83b71db05ca1032513bb68bbf423ae9bb654c4db63ec447ea8d552373befc8
[INFO] running `Command { std: "docker" "start" "-a" "ce83b71db05ca1032513bb68bbf423ae9bb654c4db63ec447ea8d552373befc8", kill_on_drop: false }`
[INFO] [stdout] warning: fields `data_len`, `cmd`, and `data` are never read
[INFO] [stdout]   --> src/lib.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub struct MtCommand {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 75 |     data_len: u8,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 76 |     cmd: MtCommandId,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 77 |     data: [u8; 256],
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mt_cmd` and `fcs` are never read
[INFO] [stdout]   --> src/lib.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub struct GeneralSerialPacket {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 97 |     mt_cmd: MtCommand,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 98 |     fcs: u8,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_cmd` and `to_frame` are never used
[INFO] [stdout]    --> src/lib.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl GeneralSerialPacket {
[INFO] [stdout]     | ------------------------ associated items in this implementation
[INFO] [stdout] 102 |     fn from_cmd(mt_cmd: MtCommand) -> Self {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     fn to_frame(&self) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mt-interface v0.0.1-dev (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `data_len`, `cmd`, and `data` are never read
[INFO] [stdout]   --> src/lib.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub struct MtCommand {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 75 |     data_len: u8,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 76 |     cmd: MtCommandId,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 77 |     data: [u8; 256],
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mt_cmd` and `fcs` are never read
[INFO] [stdout]   --> src/lib.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub struct GeneralSerialPacket {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 97 |     mt_cmd: MtCommand,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 98 |     fcs: u8,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_cmd` and `to_frame` are never used
[INFO] [stdout]    --> src/lib.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl GeneralSerialPacket {
[INFO] [stdout]     | ------------------------ associated items in this implementation
[INFO] [stdout] 102 |     fn from_cmd(mt_cmd: MtCommand) -> Self {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     fn to_frame(&self) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "ce83b71db05ca1032513bb68bbf423ae9bb654c4db63ec447ea8d552373befc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce83b71db05ca1032513bb68bbf423ae9bb654c4db63ec447ea8d552373befc8", kill_on_drop: false }`
[INFO] [stdout] ce83b71db05ca1032513bb68bbf423ae9bb654c4db63ec447ea8d552373befc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8ccb02ce096861cfcb3115acbc8eaaf3b992a28cc7d1b6e1fd8a47e4ef13033a
[INFO] running `Command { std: "docker" "start" "-a" "8ccb02ce096861cfcb3115acbc8eaaf3b992a28cc7d1b6e1fd8a47e4ef13033a", kill_on_drop: false }`
[INFO] [stderr] warning: fields `data_len`, `cmd`, and `data` are never read
[INFO] [stdout] 
[INFO] [stderr]   --> src/lib.rs:75:5
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 74 | pub struct MtCommand {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |            --------- fields in this struct
[INFO] [stdout] 
[INFO] [stderr] 75 |     data_len: u8,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 76 |     cmd: MtCommandId,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 77 |     data: [u8; 256],
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `mt_cmd` and `fcs` are never read
[INFO] [stderr]   --> src/lib.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 96 | pub struct GeneralSerialPacket {
[INFO] [stderr]    |            ------------------- fields in this struct
[INFO] [stderr] 97 |     mt_cmd: MtCommand,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 98 |     fcs: u8,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `from_cmd` and `to_frame` are never used
[INFO] [stderr]    --> src/lib.rs:102:8
[INFO] [stderr]     |
[INFO] [stderr] 101 | impl GeneralSerialPacket {
[INFO] [stderr]     | ------------------------ associated items in this implementation
[INFO] [stderr] 102 |     fn from_cmd(mt_cmd: MtCommand) -> Self {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 117 |     fn to_frame(&self) -> Vec<u8> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mt-interface` (lib) generated 3 warnings
[INFO] [stderr] warning: `mt-interface` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mt_interface-38f0c2a822a9688d)
[INFO] [stderr]    Doc-tests mt_interface
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8ccb02ce096861cfcb3115acbc8eaaf3b992a28cc7d1b6e1fd8a47e4ef13033a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ccb02ce096861cfcb3115acbc8eaaf3b992a28cc7d1b6e1fd8a47e4ef13033a", kill_on_drop: false }`
[INFO] [stdout] 8ccb02ce096861cfcb3115acbc8eaaf3b992a28cc7d1b6e1fd8a47e4ef13033a