[INFO] fetching crate serialport 4.0.0... [INFO] checking serialport-4.0.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744 [INFO] extracting crate serialport 4.0.0 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate serialport 4.0.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate serialport 4.0.0 [INFO] finished tweaking crates.io crate serialport 4.0.0 [INFO] tweaked toml for crates.io crate serialport 4.0.0 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate crates.io crate serialport 4.0.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] eedb7a0962e1898d600280f9a09c21b5af36bf816a5f062581b57e579b9ddf98 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "eedb7a0962e1898d600280f9a09c21b5af36bf816a5f062581b57e579b9ddf98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eedb7a0962e1898d600280f9a09c21b5af36bf816a5f062581b57e579b9ddf98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eedb7a0962e1898d600280f9a09c21b5af36bf816a5f062581b57e579b9ddf98", kill_on_drop: false }` [INFO] [stdout] eedb7a0962e1898d600280f9a09c21b5af36bf816a5f062581b57e579b9ddf98 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5239448f2fee638f2a8ad9bd1fbcb49253a63e7b9925e2643159415620c3cb77 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "5239448f2fee638f2a8ad9bd1fbcb49253a63e7b9925e2643159415620c3cb77", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling nix v0.16.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking libudev v0.2.0 [INFO] [stderr] Checking serialport v4.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> examples/clear_input_buffer.rs:127:34 [INFO] [stdout] | [INFO] [stdout] 127 | Err(e) => panic!(e), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 127 | Err(e) => panic!("{}", e), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 127 | Err(e) => std::panic::panic_any(e), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> examples/clear_output_buffer.rs:126:34 [INFO] [stdout] | [INFO] [stdout] 126 | Err(e) => panic!(e), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 126 | Err(e) => panic!("{}", e), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 126 | Err(e) => std::panic::panic_any(e), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 15.56s [INFO] running `Command { std: "docker" "inspect" "5239448f2fee638f2a8ad9bd1fbcb49253a63e7b9925e2643159415620c3cb77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5239448f2fee638f2a8ad9bd1fbcb49253a63e7b9925e2643159415620c3cb77", kill_on_drop: false }` [INFO] [stdout] 5239448f2fee638f2a8ad9bd1fbcb49253a63e7b9925e2643159415620c3cb77