[INFO] fetching crate serial-rs 0.2.1... [INFO] building serial-rs-0.2.1 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2 [INFO] extracting crate serial-rs 0.2.1 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate serial-rs 0.2.1 [INFO] finished tweaking crates.io crate serial-rs 0.2.1 [INFO] tweaked toml for crates.io crate serial-rs 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate serial-rs 0.2.1 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate serial-rs 0.2.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a30ff16889c41dbe930b7f918848adfc61fc5916bd3803a76358c15545caab64 [INFO] running `Command { std: "docker" "start" "-a" "a30ff16889c41dbe930b7f918848adfc61fc5916bd3803a76358c15545caab64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a30ff16889c41dbe930b7f918848adfc61fc5916bd3803a76358c15545caab64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a30ff16889c41dbe930b7f918848adfc61fc5916bd3803a76358c15545caab64", kill_on_drop: false }` [INFO] [stdout] a30ff16889c41dbe930b7f918848adfc61fc5916bd3803a76358c15545caab64 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 44531f9b32c86ae27fde43354c2e298c17f0a3dd69583d930ea5e94ec4fcc222 [INFO] running `Command { std: "docker" "start" "-a" "44531f9b32c86ae27fde43354c2e298c17f0a3dd69583d930ea5e94ec4fcc222", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling nix v0.23.1 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling serial-rs v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Result` [INFO] [stdout] --> src/posix/ioctl.rs:4:99 [INFO] [stdout] | [INFO] [stdout] 4 | use nix::{ioctl_none_bad, libc, ioctl_read_bad, ioctl_write_ptr_bad, ioctl_read, ioctl_write_ptr, Result}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/posix/port_lister.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut pat: Vec = get_paths("/dev/ttyS*").into_iter() [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/posix/port_lister.rs:52:21 [INFO] [stdout] | [INFO] [stdout] 52 | f.read_to_string(&mut s); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 52 | let _ = f.read_to_string(&mut s); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.17s [INFO] running `Command { std: "docker" "inspect" "44531f9b32c86ae27fde43354c2e298c17f0a3dd69583d930ea5e94ec4fcc222", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "44531f9b32c86ae27fde43354c2e298c17f0a3dd69583d930ea5e94ec4fcc222", kill_on_drop: false }` [INFO] [stdout] 44531f9b32c86ae27fde43354c2e298c17f0a3dd69583d930ea5e94ec4fcc222 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ebd77e93e5a05f49b71bf7290b46d322e470de7adcc343deea1e38e1c7b1b897 [INFO] running `Command { std: "docker" "start" "-a" "ebd77e93e5a05f49b71bf7290b46d322e470de7adcc343deea1e38e1c7b1b897", kill_on_drop: false }` [INFO] [stdout] warning: unused import: `Result` [INFO] [stdout] --> src/posix/ioctl.rs:4:99 [INFO] [stdout] | [INFO] [stdout] 4 | use nix::{ioctl_none_bad, libc, ioctl_read_bad, ioctl_write_ptr_bad, ioctl_read, ioctl_write_ptr, Result}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/posix/port_lister.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut pat: Vec = get_paths("/dev/ttyS*").into_iter() [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling serial-rs v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/posix/port_lister.rs:52:21 [INFO] [stdout] | [INFO] [stdout] 52 | f.read_to_string(&mut s); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 52 | let _ = f.read_to_string(&mut s); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Result` [INFO] [stdout] --> src/posix/ioctl.rs:4:99 [INFO] [stdout] | [INFO] [stdout] 4 | use nix::{ioctl_none_bad, libc, ioctl_read_bad, ioctl_write_ptr_bad, ioctl_read, ioctl_write_ptr, Result}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/posix/port_lister.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut pat: Vec = get_paths("/dev/ttyS*").into_iter() [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/posix/port_lister.rs:52:21 [INFO] [stdout] | [INFO] [stdout] 52 | f.read_to_string(&mut s); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 52 | let _ = f.read_to_string(&mut s); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufWriter` and `Read` [INFO] [stdout] --> examples/port_list.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{Read, BufReader, BufRead, Write, BufWriter}; [INFO] [stdout] | ^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s [INFO] running `Command { std: "docker" "inspect" "ebd77e93e5a05f49b71bf7290b46d322e470de7adcc343deea1e38e1c7b1b897", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ebd77e93e5a05f49b71bf7290b46d322e470de7adcc343deea1e38e1c7b1b897", kill_on_drop: false }` [INFO] [stdout] ebd77e93e5a05f49b71bf7290b46d322e470de7adcc343deea1e38e1c7b1b897