[INFO] fetching crate buddy-system 0.2.0...
[INFO] checking buddy-system-0.2.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] extracting crate buddy-system 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate buddy-system 0.2.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buddy-system 0.2.0
[INFO] finished tweaking crates.io crate buddy-system 0.2.0
[INFO] tweaked toml for crates.io crate buddy-system 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded generational-arena v0.2.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34fe90887aedd1c907557ee12ebf3861b3def06dc346889944d81608887f13e6
[INFO] running `Command { std: "docker" "start" "-a" "34fe90887aedd1c907557ee12ebf3861b3def06dc346889944d81608887f13e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34fe90887aedd1c907557ee12ebf3861b3def06dc346889944d81608887f13e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34fe90887aedd1c907557ee12ebf3861b3def06dc346889944d81608887f13e6", kill_on_drop: false }`
[INFO] [stdout] 34fe90887aedd1c907557ee12ebf3861b3def06dc346889944d81608887f13e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86e0cc79e0c6ddec42a264d494885166f9df756487ddd3d5ab8eb3ac5b89550e
[INFO] running `Command { std: "docker" "start" "-a" "86e0cc79e0c6ddec42a264d494885166f9df756487ddd3d5ab8eb3ac5b89550e", kill_on_drop: false }`
[INFO] [stderr]     Checking generational-arena v0.2.9
[INFO] [stderr]     Checking buddy-system v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `pretty_print::prettify`
[INFO] [stdout]  --> src/arena.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pretty_print::prettify,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a1`
[INFO] [stdout]    --> src/arena.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |     let a1 = arena.alloc(64).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a2`
[INFO] [stdout]    --> src/arena.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     let a2 = arena.alloc(24).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a3`
[INFO] [stdout]    --> src/arena.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let a3 = arena.alloc(2).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a4`
[INFO] [stdout]    --> src/arena.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |     let a4 = arena.alloc(7).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a5`
[INFO] [stdout]    --> src/arena.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let a5 = arena.alloc(31).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a6`
[INFO] [stdout]    --> src/arena.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |     let a6 = arena.alloc(60).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "86e0cc79e0c6ddec42a264d494885166f9df756487ddd3d5ab8eb3ac5b89550e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e0cc79e0c6ddec42a264d494885166f9df756487ddd3d5ab8eb3ac5b89550e", kill_on_drop: false }`
[INFO] [stdout] 86e0cc79e0c6ddec42a264d494885166f9df756487ddd3d5ab8eb3ac5b89550e
[INFO] checking buddy-system-0.2.0 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3
[INFO] extracting crate buddy-system 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate buddy-system 0.2.0 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buddy-system 0.2.0
[INFO] finished tweaking crates.io crate buddy-system 0.2.0
[INFO] tweaked toml for crates.io crate buddy-system 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ba84c856f7a101b908972c8fcc26c45a40b0a16c3178828d6dbc42e9bb418f8
[INFO] running `Command { std: "docker" "start" "-a" "7ba84c856f7a101b908972c8fcc26c45a40b0a16c3178828d6dbc42e9bb418f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ba84c856f7a101b908972c8fcc26c45a40b0a16c3178828d6dbc42e9bb418f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ba84c856f7a101b908972c8fcc26c45a40b0a16c3178828d6dbc42e9bb418f8", kill_on_drop: false }`
[INFO] [stdout] 7ba84c856f7a101b908972c8fcc26c45a40b0a16c3178828d6dbc42e9bb418f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 506cd974bfdf0ee6e838c906a3cda87cac661dcaeab4b5da3f4e5902f5657c2f
[INFO] running `Command { std: "docker" "start" "-a" "506cd974bfdf0ee6e838c906a3cda87cac661dcaeab4b5da3f4e5902f5657c2f", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking generational-arena v0.2.9
[INFO] [stderr]     Checking buddy-system v0.2.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2021 edition to 2024
[INFO] [stdout] warning: unused variable: `a1`
[INFO] [stdout]    --> src/arena.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |     let a1 = arena.alloc(64).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a2`
[INFO] [stdout]    --> src/arena.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     let a2 = arena.alloc(24).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a3`
[INFO] [stdout]    --> src/arena.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let a3 = arena.alloc(2).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a4`
[INFO] [stdout]    --> src/arena.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |     let a4 = arena.alloc(7).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a5`
[INFO] [stdout]    --> src/arena.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let a5 = arena.alloc(31).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a6`
[INFO] [stdout]    --> src/arena.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |     let a6 = arena.alloc(60).unwrap();
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_a6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]        Fixed src/arena.rs (1 fix)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr] Running `cargo check` to verify 2024
[INFO] [stderr]     Checking buddy-system v0.2.0 (/tmp/fixit)
[INFO] [stdout] error[E0425]: cannot find function `prettify` in this scope
[INFO] [stdout]    --> src/arena.rs:179:23
[INFO] [stdout]     |
[INFO] [stdout] 179 |     println!("{:#?}", prettify(arena.bookkeeping()));
[INFO] [stdout]     |                       ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 1   + use crate::pretty_print::prettify;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `buddy-system` (lib test) due to 2 previous errors
[INFO] [stderr] error: failed to check after updating to 2024
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo check --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "506cd974bfdf0ee6e838c906a3cda87cac661dcaeab4b5da3f4e5902f5657c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "506cd974bfdf0ee6e838c906a3cda87cac661dcaeab4b5da3f4e5902f5657c2f", kill_on_drop: false }`
[INFO] [stdout] 506cd974bfdf0ee6e838c906a3cda87cac661dcaeab4b5da3f4e5902f5657c2f