[INFO] cloning repository https://github.com/eddiemcnally/dolphin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eddiemcnally/dolphin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddiemcnally%2Fdolphin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddiemcnally%2Fdolphin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a22b106cdb8874f3b4116700945f93248dd8e4a
[INFO] checking eddiemcnally/dolphin against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddiemcnally%2Fdolphin" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eddiemcnally/dolphin on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eddiemcnally/dolphin
[INFO] finished tweaking git repo https://github.com/eddiemcnally/dolphin
[INFO] tweaked toml for git repo https://github.com/eddiemcnally/dolphin written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/eddiemcnally/dolphin 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_seeder v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4531bff586f1962f2e5e98624207a519d21304f0ce33292b3436b5b56b27187a
[INFO] running `Command { std: "docker" "start" "-a" "4531bff586f1962f2e5e98624207a519d21304f0ce33292b3436b5b56b27187a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4531bff586f1962f2e5e98624207a519d21304f0ce33292b3436b5b56b27187a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4531bff586f1962f2e5e98624207a519d21304f0ce33292b3436b5b56b27187a", kill_on_drop: false }`
[INFO] [stdout] 4531bff586f1962f2e5e98624207a519d21304f0ce33292b3436b5b56b27187a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e35143b056a1876f1f2f27281fb2ba75642f104552341645969d062b12e772b3
[INFO] running `Command { std: "docker" "start" "-a" "e35143b056a1876f1f2f27281fb2ba75642f104552341645969d062b12e772b3", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking core_affinity v0.8.1
[INFO] [stderr]     Checking core_affinity v0.5.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_seeder v0.2.3
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking dolphin_core v0.1.0 (/opt/rustwide/workdir/dolphin_core)
[INFO] [stdout] warning: struct `Stats` is never constructed
[INFO] [stdout]   --> dolphin_core/src/search_engine/tt.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | struct Stats {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stats` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking perft v0.1.0 (/opt/rustwide/workdir/perft)
[INFO] [stderr]     Checking dolphin_engine v0.1.0 (/opt/rustwide/workdir/dolphin_engine)
[INFO] [stdout] warning: struct `Stats` is never constructed
[INFO] [stdout]   --> dolphin_core/src/search_engine/tt.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | struct Stats {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stats` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "e35143b056a1876f1f2f27281fb2ba75642f104552341645969d062b12e772b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e35143b056a1876f1f2f27281fb2ba75642f104552341645969d062b12e772b3", kill_on_drop: false }`
[INFO] [stdout] e35143b056a1876f1f2f27281fb2ba75642f104552341645969d062b12e772b3
[INFO] checking eddiemcnally/dolphin against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddiemcnally%2Fdolphin" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eddiemcnally/dolphin on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eddiemcnally/dolphin
[INFO] finished tweaking git repo https://github.com/eddiemcnally/dolphin
[INFO] tweaked toml for git repo https://github.com/eddiemcnally/dolphin written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/eddiemcnally/dolphin 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37d5b3301bc161c1b153bbc3f067c2049580226fb3dd9dc6007ed496bc6c410a
[INFO] running `Command { std: "docker" "start" "-a" "37d5b3301bc161c1b153bbc3f067c2049580226fb3dd9dc6007ed496bc6c410a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37d5b3301bc161c1b153bbc3f067c2049580226fb3dd9dc6007ed496bc6c410a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37d5b3301bc161c1b153bbc3f067c2049580226fb3dd9dc6007ed496bc6c410a", kill_on_drop: false }`
[INFO] [stdout] 37d5b3301bc161c1b153bbc3f067c2049580226fb3dd9dc6007ed496bc6c410a
[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=forbid -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba50d520a5899b08a13f716dca3bcd853fb286c6375bef1eba03870c1a64b6a7
[INFO] running `Command { std: "docker" "start" "-a" "ba50d520a5899b08a13f716dca3bcd853fb286c6375bef1eba03870c1a64b6a7", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking core_affinity v0.8.1
[INFO] [stderr]     Checking core_affinity v0.5.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking rand_seeder v0.2.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking dolphin_core v0.1.0 (/opt/rustwide/workdir/dolphin_core)
[INFO] [stdout] warning: struct `Stats` is never constructed
[INFO] [stdout]   --> dolphin_core/src/search_engine/tt.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | struct Stats {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stats` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking dolphin_engine v0.1.0 (/opt/rustwide/workdir/dolphin_engine)
[INFO] [stderr]     Checking perft v0.1.0 (/opt/rustwide/workdir/perft)
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> perft/src/epd_parser.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |   fn lines_from_file(filename: impl AsRef<Path>) -> Vec<String> {
[INFO] [stdout]    |                      -------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 47 |       let file = File::open(filename).expect("no such file");
[INFO] [stdout]    |           ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 48 |       let buf = BufReader::new(file);
[INFO] [stdout]    |           --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 49 | /     buf.lines()
[INFO] [stdout] 50 | |         .map(|l| l.expect("Could not parse line"))
[INFO] [stdout]    | |__________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `perft` (bin "perft") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> perft/src/epd_parser.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |   fn lines_from_file(filename: impl AsRef<Path>) -> Vec<String> {
[INFO] [stdout]    |                      -------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 47 |       let file = File::open(filename).expect("no such file");
[INFO] [stdout]    |           ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 48 |       let buf = BufReader::new(file);
[INFO] [stdout]    |           --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 49 | /     buf.lines()
[INFO] [stdout] 50 | |         .map(|l| l.expect("Could not parse line"))
[INFO] [stdout]    | |__________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `perft` (bin "perft" test) due to 2 previous errors
[INFO] [stdout] warning: struct `Stats` is never constructed
[INFO] [stdout]   --> dolphin_core/src/search_engine/tt.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | struct Stats {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stats` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ba50d520a5899b08a13f716dca3bcd853fb286c6375bef1eba03870c1a64b6a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba50d520a5899b08a13f716dca3bcd853fb286c6375bef1eba03870c1a64b6a7", kill_on_drop: false }`
[INFO] [stdout] ba50d520a5899b08a13f716dca3bcd853fb286c6375bef1eba03870c1a64b6a7