[INFO] fetching crate simple_modbus 0.1.1...
[INFO] testing simple_modbus-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate simple_modbus 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate simple_modbus 0.1.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple_modbus 0.1.1
[INFO] finished tweaking crates.io crate simple_modbus 0.1.1
[INFO] tweaked toml for crates.io crate simple_modbus 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2b41e1877c9fe8dfab86e602d7ebef23299ea04e8b98e1aa772849ea0e8ddb73
[INFO] running `Command { std: "docker" "start" "-a" "2b41e1877c9fe8dfab86e602d7ebef23299ea04e8b98e1aa772849ea0e8ddb73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b41e1877c9fe8dfab86e602d7ebef23299ea04e8b98e1aa772849ea0e8ddb73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b41e1877c9fe8dfab86e602d7ebef23299ea04e8b98e1aa772849ea0e8ddb73", kill_on_drop: false }`
[INFO] [stdout] 2b41e1877c9fe8dfab86e602d7ebef23299ea04e8b98e1aa772849ea0e8ddb73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3b47c3b78965a4b536a3a80f9d289a977dd852ef9f36553a86c2b1acf3938c37
[INFO] running `Command { std: "docker" "start" "-a" "3b47c3b78965a4b536a3a80f9d289a977dd852ef9f36553a86c2b1acf3938c37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling libudev v0.3.0
[INFO] [stderr]    Compiling serialport v4.1.0
[INFO] [stderr]    Compiling simple_modbus v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Instant`
[INFO] [stdout]  --> src/lib.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `code`
[INFO] [stdout]    --> src/lib.rs:314:8
[INFO] [stdout]     |
[INFO] [stdout] 314 |     fn code(self) -> u16 {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.07s
[INFO] running `Command { std: "docker" "inspect" "3b47c3b78965a4b536a3a80f9d289a977dd852ef9f36553a86c2b1acf3938c37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b47c3b78965a4b536a3a80f9d289a977dd852ef9f36553a86c2b1acf3938c37", kill_on_drop: false }`
[INFO] [stdout] 3b47c3b78965a4b536a3a80f9d289a977dd852ef9f36553a86c2b1acf3938c37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0f13e540a589a6bcaccfcb67e72cc67d31c919ae65c5c6f3d9812ac2cfc2f190
[INFO] running `Command { std: "docker" "start" "-a" "0f13e540a589a6bcaccfcb67e72cc67d31c919ae65c5c6f3d9812ac2cfc2f190", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling simple_modbus v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Instant`
[INFO] [stdout]  --> src/lib.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `code`
[INFO] [stdout]    --> src/lib.rs:314:8
[INFO] [stdout]     |
[INFO] [stdout] 314 |     fn code(self) -> u16 {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stdout] warning: unused import: `Instant`
[INFO] [stdout]  --> src/lib.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `code`
[INFO] [stdout]    --> src/lib.rs:314:8
[INFO] [stdout]     |
[INFO] [stdout] 314 |     fn code(self) -> u16 {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.83s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_modbus-f0e1ee52d56b1ddf)
[INFO] running `Command { std: "docker" "inspect" "0f13e540a589a6bcaccfcb67e72cc67d31c919ae65c5c6f3d9812ac2cfc2f190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f13e540a589a6bcaccfcb67e72cc67d31c919ae65c5c6f3d9812ac2cfc2f190", kill_on_drop: false }`
[INFO] [stdout] 0f13e540a589a6bcaccfcb67e72cc67d31c919ae65c5c6f3d9812ac2cfc2f190
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8d02ed84b4f169e8b42f096eb12d7acd7bd60227545067a0b724e466af984656
[INFO] running `Command { std: "docker" "start" "-a" "8d02ed84b4f169e8b42f096eb12d7acd7bd60227545067a0b724e466af984656", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Instant`
[INFO] [stderr]  --> src/lib.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                           ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `code`
[INFO] [stderr]    --> src/lib.rs:314:8
[INFO] [stderr]     |
[INFO] [stderr] 314 |     fn code(self) -> u16 {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `simple_modbus` (lib) generated 2 warnings
[INFO] [stderr] warning: `simple_modbus` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_modbus-f0e1ee52d56b1ddf)
[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 simple_modbus
[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" "8d02ed84b4f169e8b42f096eb12d7acd7bd60227545067a0b724e466af984656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d02ed84b4f169e8b42f096eb12d7acd7bd60227545067a0b724e466af984656", kill_on_drop: false }`
[INFO] [stdout] 8d02ed84b4f169e8b42f096eb12d7acd7bd60227545067a0b724e466af984656