[INFO] cloning repository https://github.com/winksaville/rust-expr-serial-port-linux
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/winksaville/rust-expr-serial-port-linux" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinksaville%2Frust-expr-serial-port-linux", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinksaville%2Frust-expr-serial-port-linux'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50ffe5cf2e9876795f2bd400d29a9e8505e8c175
[INFO] testing winksaville/rust-expr-serial-port-linux against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinksaville%2Frust-expr-serial-port-linux" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/winksaville/rust-expr-serial-port-linux on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/winksaville/rust-expr-serial-port-linux
[INFO] finished tweaking git repo https://github.com/winksaville/rust-expr-serial-port-linux
[INFO] tweaked toml for git repo https://github.com/winksaville/rust-expr-serial-port-linux written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/winksaville/rust-expr-serial-port-linux already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c86d046b8c03a735e46818a8fcc2c5598df9923f768a349cc4c0c44a81655b3c
[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" "c86d046b8c03a735e46818a8fcc2c5598df9923f768a349cc4c0c44a81655b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c86d046b8c03a735e46818a8fcc2c5598df9923f768a349cc4c0c44a81655b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c86d046b8c03a735e46818a8fcc2c5598df9923f768a349cc4c0c44a81655b3c", kill_on_drop: false }`
[INFO] [stdout] c86d046b8c03a735e46818a8fcc2c5598df9923f768a349cc4c0c44a81655b3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] f3f672ccf4073fb4078774c5854fceddace4d527f1ba9ec223a8117ff7cd6e66
[INFO] running `Command { std: "docker" "start" "-a" "f3f672ccf4073fb4078774c5854fceddace4d527f1ba9ec223a8117ff7cd6e66", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling serialport v4.0.0
[INFO] [stderr]    Compiling expr-serial-port v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:167:28
[INFO] [stdout]     |
[INFO] [stdout] 167 |                     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] 167 |                     panic!("{}", e);
[INFO] [stdout]     |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 167 |                     std::panic::panic_any(e);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.08s
[INFO] running `Command { std: "docker" "inspect" "f3f672ccf4073fb4078774c5854fceddace4d527f1ba9ec223a8117ff7cd6e66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3f672ccf4073fb4078774c5854fceddace4d527f1ba9ec223a8117ff7cd6e66", kill_on_drop: false }`
[INFO] [stdout] f3f672ccf4073fb4078774c5854fceddace4d527f1ba9ec223a8117ff7cd6e66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] 72ea0360d58d49baed7712e3ae4f470bd9bc9fa05b80fe02d9d47fbd8e0b6194
[INFO] running `Command { std: "docker" "start" "-a" "72ea0360d58d49baed7712e3ae4f470bd9bc9fa05b80fe02d9d47fbd8e0b6194", kill_on_drop: false }`
[INFO] [stderr]    Compiling expr-serial-port v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:167:28
[INFO] [stdout]     |
[INFO] [stdout] 167 |                     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] 167 |                     panic!("{}", e);
[INFO] [stdout]     |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 167 |                     std::panic::panic_any(e);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "72ea0360d58d49baed7712e3ae4f470bd9bc9fa05b80fe02d9d47fbd8e0b6194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72ea0360d58d49baed7712e3ae4f470bd9bc9fa05b80fe02d9d47fbd8e0b6194", kill_on_drop: false }`
[INFO] [stdout] 72ea0360d58d49baed7712e3ae4f470bd9bc9fa05b80fe02d9d47fbd8e0b6194
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e2c766d5637a0185accd03ecc89cb904c80b94e697c9ca4bc2c4faad15d917e0
[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" "e2c766d5637a0185accd03ecc89cb904c80b94e697c9ca4bc2c4faad15d917e0", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/main.rs:167:28
[INFO] [stderr]     |
[INFO] [stderr] 167 |                     panic!(e);
[INFO] [stderr]     |                            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 167 |                     panic!("{}", e);
[INFO] [stderr]     |                            ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 167 |                     std::panic::panic_any(e);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/expr_serial_port-7db61593a85ac86c)
[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" "e2c766d5637a0185accd03ecc89cb904c80b94e697c9ca4bc2c4faad15d917e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2c766d5637a0185accd03ecc89cb904c80b94e697c9ca4bc2c4faad15d917e0", kill_on_drop: false }`
[INFO] [stdout] e2c766d5637a0185accd03ecc89cb904c80b94e697c9ca4bc2c4faad15d917e0