[INFO] fetching crate ripm 0.4.0...
[INFO] testing ripm-0.4.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ripm 0.4.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate ripm 0.4.0
[INFO] finished tweaking crates.io crate ripm 0.4.0
[INFO] tweaked toml for crates.io crate ripm 0.4.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ripm 0.4.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ripm 0.4.0 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d4d311552f7c17f5a47fd59093887060f253388484d83fcf40eda0a18b83f6e
[INFO] running `Command { std: "docker" "start" "-a" "0d4d311552f7c17f5a47fd59093887060f253388484d83fcf40eda0a18b83f6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d4d311552f7c17f5a47fd59093887060f253388484d83fcf40eda0a18b83f6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d4d311552f7c17f5a47fd59093887060f253388484d83fcf40eda0a18b83f6e", kill_on_drop: false }`
[INFO] [stdout] 0d4d311552f7c17f5a47fd59093887060f253388484d83fcf40eda0a18b83f6e
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 361ce685ed597f955f8eb0c7d65401f5f9ae418080133687e5534c805258e515
[INFO] running `Command { std: "docker" "start" "-a" "361ce685ed597f955f8eb0c7d65401f5f9ae418080133687e5534c805258e515", kill_on_drop: false }`
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling rtoolbox v0.0.3
[INFO] [stderr]    Compiling tokio v1.47.0
[INFO] [stderr]    Compiling rpassword v7.4.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]    Compiling sha256 v1.6.0
[INFO] [stderr]    Compiling ripm v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `to_write` is never read
[INFO] [stdout]    --> src/main.rs:405:50
[INFO] [stdout]     |
[INFO] [stdout] 405 | ...                   let mut to_write = String::new();
[INFO] [stdout]     |                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `to_write` is never read
[INFO] [stdout]    --> src/main.rs:419:33
[INFO] [stdout]     |
[INFO] [stdout] 419 |                         let mut to_write = String::new();
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.33s
[INFO] running `Command { std: "docker" "inspect" "361ce685ed597f955f8eb0c7d65401f5f9ae418080133687e5534c805258e515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "361ce685ed597f955f8eb0c7d65401f5f9ae418080133687e5534c805258e515", kill_on_drop: false }`
[INFO] [stdout] 361ce685ed597f955f8eb0c7d65401f5f9ae418080133687e5534c805258e515
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 265bb74f3f2d62463a7fd25ed9258602d1880fdab1581b55fd69d715fb392416
[INFO] running `Command { std: "docker" "start" "-a" "265bb74f3f2d62463a7fd25ed9258602d1880fdab1581b55fd69d715fb392416", kill_on_drop: false }`
[INFO] [stderr]    Compiling ripm v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `to_write` is never read
[INFO] [stdout]    --> src/main.rs:405:50
[INFO] [stdout]     |
[INFO] [stdout] 405 | ...                   let mut to_write = String::new();
[INFO] [stdout]     |                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `to_write` is never read
[INFO] [stdout]    --> src/main.rs:419:33
[INFO] [stdout]     |
[INFO] [stdout] 419 |                         let mut to_write = String::new();
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "265bb74f3f2d62463a7fd25ed9258602d1880fdab1581b55fd69d715fb392416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "265bb74f3f2d62463a7fd25ed9258602d1880fdab1581b55fd69d715fb392416", kill_on_drop: false }`
[INFO] [stdout] 265bb74f3f2d62463a7fd25ed9258602d1880fdab1581b55fd69d715fb392416
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 35ce30c339deeb1086b74e2cd3f035dbb92ab4f181bd172e68ea2a47778eccb1
[INFO] running `Command { std: "docker" "start" "-a" "35ce30c339deeb1086b74e2cd3f035dbb92ab4f181bd172e68ea2a47778eccb1", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `to_write` is never read
[INFO] [stdout] 
[INFO] [stderr]    --> src/main.rs:405:50
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 405 | ...                   let mut to_write = String::new();
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |                               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `to_write` is never read
[INFO] [stderr]    --> src/main.rs:419:33
[INFO] [stderr]     |
[INFO] [stderr] 419 |                         let mut to_write = String::new();
[INFO] [stderr]     |                                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `ripm` (bin "ripm" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ripm-fdc0510d7f602ef3)
[INFO] running `Command { std: "docker" "inspect" "35ce30c339deeb1086b74e2cd3f035dbb92ab4f181bd172e68ea2a47778eccb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35ce30c339deeb1086b74e2cd3f035dbb92ab4f181bd172e68ea2a47778eccb1", kill_on_drop: false }`
[INFO] [stdout] 35ce30c339deeb1086b74e2cd3f035dbb92ab4f181bd172e68ea2a47778eccb1