[INFO] fetching crate modbus-iiot-rs 0.0.1...
[INFO] checking modbus-iiot-rs-0.0.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate modbus-iiot-rs 0.0.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate modbus-iiot-rs 0.0.1
[INFO] finished tweaking crates.io crate modbus-iiot-rs 0.0.1
[INFO] tweaked toml for crates.io crate modbus-iiot-rs 0.0.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate modbus-iiot-rs 0.0.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e244fc70eb806d76f997b669d1f2fa1a6360209af7e0a76834af66c1f660400
[INFO] running `Command { std: "docker" "start" "-a" "5e244fc70eb806d76f997b669d1f2fa1a6360209af7e0a76834af66c1f660400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e244fc70eb806d76f997b669d1f2fa1a6360209af7e0a76834af66c1f660400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e244fc70eb806d76f997b669d1f2fa1a6360209af7e0a76834af66c1f660400", kill_on_drop: false }`
[INFO] [stdout] 5e244fc70eb806d76f997b669d1f2fa1a6360209af7e0a76834af66c1f660400
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9d5c9b34a1691826b5f977396ba83b1f9efd32e179c8bdc6b7d5cf41c84216c
[INFO] running `Command { std: "docker" "start" "-a" "c9d5c9b34a1691826b5f977396ba83b1f9efd32e179c8bdc6b7d5cf41c84216c", kill_on_drop: false }`
[INFO] [stderr]     Checking modbus-iiot-rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: format argument must be a string literal
[INFO] [stdout]    --> src/core/methods.rs:522:39
[INFO] [stdout]     |
[INFO] [stdout] 522 |     assert! ( telegram_bytes.is_some (), true );
[INFO] [stdout]     |                                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: you might be missing a string literal to format with
[INFO] [stdout]     |
[INFO] [stdout] 522 |     assert! ( telegram_bytes.is_some (), "{}", true );
[INFO] [stdout]     |                                          +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/network/common.rs:26:49
[INFO] [stdout]    |
[INFO] [stdout] 26 |             reply = Err( connection_result.unwrap_err ().description ().to_owned () );
[INFO] [stdout]    |                                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/network/socket.rs:135:47
[INFO] [stdout]     |
[INFO] [stdout] 135 |             reply = Err( result.unwrap_err ().description ().to_owned () );
[INFO] [stdout]     |                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/network/socket.rs:197:47
[INFO] [stdout]     |
[INFO] [stdout] 197 |             reply = Err( result.unwrap_err ().description ().to_owned () );
[INFO] [stdout]     |                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/network/common.rs:26:49
[INFO] [stdout]    |
[INFO] [stdout] 26 |             reply = Err( connection_result.unwrap_err ().description ().to_owned () );
[INFO] [stdout]    |                                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/network/socket.rs:135:47
[INFO] [stdout]     |
[INFO] [stdout] 135 |             reply = Err( result.unwrap_err ().description ().to_owned () );
[INFO] [stdout]     |                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/network/socket.rs:197:47
[INFO] [stdout]     |
[INFO] [stdout] 197 |             reply = Err( result.unwrap_err ().description ().to_owned () );
[INFO] [stdout]     |                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `modbus-iiot-rs` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c9d5c9b34a1691826b5f977396ba83b1f9efd32e179c8bdc6b7d5cf41c84216c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9d5c9b34a1691826b5f977396ba83b1f9efd32e179c8bdc6b7d5cf41c84216c", kill_on_drop: false }`
[INFO] [stdout] c9d5c9b34a1691826b5f977396ba83b1f9efd32e179c8bdc6b7d5cf41c84216c