[INFO] fetching crate mt-interface 0.0.1-dev...
[INFO] testing mt-interface-0.0.1-dev against 1.90.0 for beta-1.91-3
[INFO] extracting crate mt-interface 0.0.1-dev into /workspace/builds/worker-0-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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mt-interface 0.0.1-dev on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd9a7e6aaa36d28d6efedac044de8c3f473263d5eb2efb2d92e8e65dc7463c6d
[INFO] running `Command { std: "docker" "start" "-a" "fd9a7e6aaa36d28d6efedac044de8c3f473263d5eb2efb2d92e8e65dc7463c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd9a7e6aaa36d28d6efedac044de8c3f473263d5eb2efb2d92e8e65dc7463c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd9a7e6aaa36d28d6efedac044de8c3f473263d5eb2efb2d92e8e65dc7463c6d", kill_on_drop: false }`
[INFO] [stdout] fd9a7e6aaa36d28d6efedac044de8c3f473263d5eb2efb2d92e8e65dc7463c6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7dcae033cb653eb457b87a4ce37c12629ae3dd0421f3d0d03c4bd8b9f20a05d
[INFO] running `Command { std: "docker" "start" "-a" "e7dcae033cb653eb457b87a4ce37c12629ae3dd0421f3d0d03c4bd8b9f20a05d", 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)]` 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 0.14s
[INFO] running `Command { std: "docker" "inspect" "e7dcae033cb653eb457b87a4ce37c12629ae3dd0421f3d0d03c4bd8b9f20a05d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7dcae033cb653eb457b87a4ce37c12629ae3dd0421f3d0d03c4bd8b9f20a05d", kill_on_drop: false }`
[INFO] [stdout] e7dcae033cb653eb457b87a4ce37c12629ae3dd0421f3d0d03c4bd8b9f20a05d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9318586ae106efe5c661ad661bf5299c49a6d9375664628129cffab33d196ac
[INFO] running `Command { std: "docker" "start" "-a" "e9318586ae106efe5c661ad661bf5299c49a6d9375664628129cffab33d196ac", 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)]` 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)]` 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 0.21s
[INFO] running `Command { std: "docker" "inspect" "e9318586ae106efe5c661ad661bf5299c49a6d9375664628129cffab33d196ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9318586ae106efe5c661ad661bf5299c49a6d9375664628129cffab33d196ac", kill_on_drop: false }`
[INFO] [stdout] e9318586ae106efe5c661ad661bf5299c49a6d9375664628129cffab33d196ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f0a3c171d469a4e9cd10580a4a94c7f5ecab7f47ead2b3cc9cc6c1cebf705b62
[INFO] running `Command { std: "docker" "start" "-a" "f0a3c171d469a4e9cd10580a4a94c7f5ecab7f47ead2b3cc9cc6c1cebf705b62", kill_on_drop: false }`
[INFO] [stderr] warning: fields `data_len`, `cmd`, and `data` are never read
[INFO] [stderr]   --> src/lib.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 74 | pub struct MtCommand {
[INFO] [stderr]    |            --------- fields in this struct
[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)]` 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 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mt_interface-41a2593eafd9f0bd)
[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] [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" "f0a3c171d469a4e9cd10580a4a94c7f5ecab7f47ead2b3cc9cc6c1cebf705b62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0a3c171d469a4e9cd10580a4a94c7f5ecab7f47ead2b3cc9cc6c1cebf705b62", kill_on_drop: false }`
[INFO] [stdout] f0a3c171d469a4e9cd10580a4a94c7f5ecab7f47ead2b3cc9cc6c1cebf705b62