[INFO] fetching crate rust_cli_tool_grrs 0.1.0...
[INFO] checking rust_cli_tool_grrs-0.1.0 against master#8a703520e80d87d4423c01f9d4fbc9e5f6533a02 for pr-154205-1
[INFO] extracting crate rust_cli_tool_grrs 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate rust_cli_tool_grrs 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rust_cli_tool_grrs 0.1.0
[INFO] tweaked toml for crates.io crate rust_cli_tool_grrs 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_cli_tool_grrs 0.1.0 on toolchain 8a703520e80d87d4423c01f9d4fbc9e5f6533a02
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust_cli_tool_grrs 0.1.0 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" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tempfile v3.20.0
[INFO] [stderr]   Downloaded assert_fs v1.1.3
[INFO] [stderr]   Downloaded assert_cmd v2.0.17
[INFO] [stderr]   Downloaded globset v0.4.16
[INFO] [stderr]   Downloaded bstr v1.12.0
[INFO] [stderr]   Downloaded rustix v1.0.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d4376808afc5ee2617adc9f450a0aa082f308918cee54afbbb05d2a438a8e43
[INFO] running `Command { std: "docker" "start" "-a" "3d4376808afc5ee2617adc9f450a0aa082f308918cee54afbbb05d2a438a8e43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d4376808afc5ee2617adc9f450a0aa082f308918cee54afbbb05d2a438a8e43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d4376808afc5ee2617adc9f450a0aa082f308918cee54afbbb05d2a438a8e43", kill_on_drop: false }`
[INFO] [stdout] 3d4376808afc5ee2617adc9f450a0aa082f308918cee54afbbb05d2a438a8e43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec4e96fe3349b0cb2ade8ef1b575f546a49d02874c9dd03ab10e9d537f3aebe9
[INFO] running `Command { std: "docker" "start" "-a" "ec4e96fe3349b0cb2ade8ef1b575f546a49d02874c9dd03ab10e9d537f3aebe9", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking anstyle-query v1.1.3
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]     Checking predicates-core v1.0.9
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking linux-raw-sys v0.9.4
[INFO] [stderr]     Checking predicates-tree v1.0.12
[INFO] [stderr]    Compiling assert_cmd v2.0.17
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking anstream v0.6.19
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking clap_builder v4.5.40
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking float-cmp v0.10.0
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking tempfile v3.20.0
[INFO] [stderr]    Compiling clap_derive v4.5.40
[INFO] [stderr]     Checking bstr v1.12.0
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking predicates v3.1.3
[INFO] [stderr]     Checking globset v0.4.16
[INFO] [stderr]     Checking ignore v0.4.23
[INFO] [stderr]     Checking globwalk v0.9.1
[INFO] [stderr]     Checking assert_fs v1.1.3
[INFO] [stderr]     Checking clap v4.5.40
[INFO] [stderr]     Checking rust_cli_tool_grrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/lib.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |             writeln!(writer, "{}", line);
[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] 4 |             let _ = writeln!(writer, "{}", line);
[INFO] [stdout]   |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/lib.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |             writeln!(writer, "{}", line);
[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] 4 |             let _ = writeln!(writer, "{}", line);
[INFO] [stdout]   |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.97s
[INFO] running `Command { std: "docker" "inspect" "ec4e96fe3349b0cb2ade8ef1b575f546a49d02874c9dd03ab10e9d537f3aebe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec4e96fe3349b0cb2ade8ef1b575f546a49d02874c9dd03ab10e9d537f3aebe9", kill_on_drop: false }`
[INFO] [stdout] ec4e96fe3349b0cb2ade8ef1b575f546a49d02874c9dd03ab10e9d537f3aebe9