[INFO] fetching crate rexpect 0.6.0...
[INFO] checking rexpect-0.6.0 against master#dc8fe1f81c6cf13c0987944c525b2aa81625b5d0 for pr-133502-4
[INFO] extracting crate rexpect 0.6.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rexpect 0.6.0 on toolchain dc8fe1f81c6cf13c0987944c525b2aa81625b5d0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rexpect 0.6.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rexpect 0.6.0
[INFO] tweaked toml for crates.io crate rexpect 0.6.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate rexpect 0.6.0 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" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.65
[INFO] [stderr]   Downloaded tempfile v3.6.0
[INFO] [stderr]   Downloaded comma v1.0.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.65
[INFO] [stderr]   Downloaded redox_syscall v0.3.5
[INFO] [stderr]   Downloaded home v0.5.5
[INFO] [stderr]   Downloaded which v5.0.0
[INFO] [stderr]   Downloaded memchr v2.6.2
[INFO] [stderr]   Downloaded nix v0.27.1
[INFO] [stderr]   Downloaded syn v2.0.67
[INFO] [stderr]   Downloaded rustix v0.37.27
[INFO] [stderr]   Downloaded rustix v0.38.39
[INFO] [stderr]   Downloaded libc v0.2.161
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69770dab84d4688687f5a2bdc19625155bfee0327f4dab8fa124dde3ed63f02d
[INFO] running `Command { std: "docker" "start" "-a" "69770dab84d4688687f5a2bdc19625155bfee0327f4dab8fa124dde3ed63f02d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69770dab84d4688687f5a2bdc19625155bfee0327f4dab8fa124dde3ed63f02d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69770dab84d4688687f5a2bdc19625155bfee0327f4dab8fa124dde3ed63f02d", kill_on_drop: false }`
[INFO] [stdout] 69770dab84d4688687f5a2bdc19625155bfee0327f4dab8fa124dde3ed63f02d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b11e7480877c796e92ca4fb44c3fee8d92774feee943ea862386053bd8a895d
[INFO] running `Command { std: "docker" "start" "-a" "2b11e7480877c796e92ca4fb44c3fee8d92774feee943ea862386053bd8a895d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking memchr v2.6.2
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]    Compiling thiserror v1.0.65
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking comma v1.0.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.67
[INFO] [stderr]     Checking regex-automata v0.3.9
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.65
[INFO] [stderr]     Checking regex v1.9.6
[INFO] [stderr]     Checking rexpect v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `exec` that must be used
[INFO] [stdout]    --> src/process.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |                 command.exec();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 127 |                 let _ = command.exec();
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `exec` that must be used
[INFO] [stdout]    --> src/process.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |                 command.exec();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 127 |                 let _ = command.exec();
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.91s
[INFO] running `Command { std: "docker" "inspect" "2b11e7480877c796e92ca4fb44c3fee8d92774feee943ea862386053bd8a895d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b11e7480877c796e92ca4fb44c3fee8d92774feee943ea862386053bd8a895d", kill_on_drop: false }`
[INFO] [stdout] 2b11e7480877c796e92ca4fb44c3fee8d92774feee943ea862386053bd8a895d