[INFO] cloning repository https://github.com/hectorip/shuttlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hectorip/shuttlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhectorip%2Fshuttlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhectorip%2Fshuttlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4622c82dd963e9511b9f9cd536a6d2b98abae125
[INFO] testing hectorip/shuttlings against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_in_2025-retry-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhectorip%2Fshuttlings" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hectorip/shuttlings
[INFO] finished tweaking git repo https://github.com/hectorip/shuttlings
[INFO] tweaked toml for git repo https://github.com/hectorip/shuttlings written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hectorip/shuttlings on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hectorip/shuttlings 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2f8b2f7e803af1cffb85b7248c7f8bed3f43ae9540e485b7cbc5213c4f6dcd0
[INFO] running `Command { std: "docker" "start" "-a" "c2f8b2f7e803af1cffb85b7248c7f8bed3f43ae9540e485b7cbc5213c4f6dcd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2f8b2f7e803af1cffb85b7248c7f8bed3f43ae9540e485b7cbc5213c4f6dcd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2f8b2f7e803af1cffb85b7248c7f8bed3f43ae9540e485b7cbc5213c4f6dcd0", kill_on_drop: false }`
[INFO] [stdout] c2f8b2f7e803af1cffb85b7248c7f8bed3f43ae9540e485b7cbc5213c4f6dcd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 535b696ab70992c9d4998c015c2a6398f89bcd00ae88d54f95a56225634ac514
[INFO] running `Command { std: "docker" "start" "-a" "535b696ab70992c9d4998c015c2a6398f89bcd00ae88d54f95a56225634ac514", kill_on_drop: false }`
[INFO] [stderr]    Compiling shuttlings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     left + right;
[INFO] [stdout]   |     ^^^^^^^^^^^^ the arithmetic operation produces a value
[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] 2 |     let _ = left + right;
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "535b696ab70992c9d4998c015c2a6398f89bcd00ae88d54f95a56225634ac514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "535b696ab70992c9d4998c015c2a6398f89bcd00ae88d54f95a56225634ac514", kill_on_drop: false }`
[INFO] [stdout] 535b696ab70992c9d4998c015c2a6398f89bcd00ae88d54f95a56225634ac514
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 0cc398e5af6fbba460e7b21270c22641bb2427ea3f8276a4af71afd368330955
[INFO] running `Command { std: "docker" "start" "-a" "0cc398e5af6fbba460e7b21270c22641bb2427ea3f8276a4af71afd368330955", kill_on_drop: false }`
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     left + right;
[INFO] [stdout]   |     ^^^^^^^^^^^^ the arithmetic operation produces a value
[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] 2 |     let _ = left + right;
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling shuttlings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     left + right;
[INFO] [stdout]   |     ^^^^^^^^^^^^ the arithmetic operation produces a value
[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] 2 |     let _ = left + right;
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "0cc398e5af6fbba460e7b21270c22641bb2427ea3f8276a4af71afd368330955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cc398e5af6fbba460e7b21270c22641bb2427ea3f8276a4af71afd368330955", kill_on_drop: false }`
[INFO] [stdout] 0cc398e5af6fbba460e7b21270c22641bb2427ea3f8276a4af71afd368330955
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 3fe51a11e2cd6bb28c74e65e9b771f722cad9701716fe5a67e9ce73715fc4f0e
[INFO] running `Command { std: "docker" "start" "-a" "3fe51a11e2cd6bb28c74e65e9b771f722cad9701716fe5a67e9ce73715fc4f0e", kill_on_drop: false }`
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]  --> src/lib.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     left + right;
[INFO] [stderr]   |     ^^^^^^^^^^^^ the arithmetic operation produces a value
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let _ = left + right;
[INFO] [stderr]   |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `shuttlings` (lib) generated 1 warning
[INFO] [stderr] warning: `shuttlings` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/shuttlings-28de324cec13bca3)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3fe51a11e2cd6bb28c74e65e9b771f722cad9701716fe5a67e9ce73715fc4f0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fe51a11e2cd6bb28c74e65e9b771f722cad9701716fe5a67e9ce73715fc4f0e", kill_on_drop: false }`
[INFO] [stdout] 3fe51a11e2cd6bb28c74e65e9b771f722cad9701716fe5a67e9ce73715fc4f0e