[INFO] fetching crate spaces 6.0.0...
[INFO] checking spaces-6.0.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate spaces 6.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate spaces 6.0.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spaces 6.0.0
[INFO] finished tweaking crates.io crate spaces 6.0.0
[INFO] tweaked toml for crates.io crate spaces 6.0.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.13.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b927fc8e1ff2c4b5e28fc97601baa5fdc56b8761b08f222c2131dac665083e3f
[INFO] running `Command { std: "docker" "start" "-a" "b927fc8e1ff2c4b5e28fc97601baa5fdc56b8761b08f222c2131dac665083e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b927fc8e1ff2c4b5e28fc97601baa5fdc56b8761b08f222c2131dac665083e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b927fc8e1ff2c4b5e28fc97601baa5fdc56b8761b08f222c2131dac665083e3f", kill_on_drop: false }`
[INFO] [stdout] b927fc8e1ff2c4b5e28fc97601baa5fdc56b8761b08f222c2131dac665083e3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e78d73bef36b7358fd6765ca79d8ceebc4a20f2745315f6b7e632a16db5c68bd
[INFO] running `Command { std: "docker" "start" "-a" "e78d73bef36b7358fd6765ca79d8ceebc4a20f2745315f6b7e632a16db5c68bd", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking spaces v6.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::$module::*`
[INFO] [stdout]   --> src/macros.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         pub use self::$module::*;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/discrete/mod.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | import_all!(ordinal);
[INFO] [stdout]    | -------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `import_all` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::$module::*`
[INFO] [stdout]   --> src/macros.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         pub use self::$module::*;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | import_all!(arrays);
[INFO] [stdout]    | ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `import_all` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::$module::*`
[INFO] [stdout]   --> src/macros.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         pub use self::$module::*;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | import_all!(tuples);
[INFO] [stdout]    | ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `import_all` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_test v1.0.177
[INFO] [stdout] warning: unused import: `self::$module::*`
[INFO] [stdout]   --> src/macros.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         pub use self::$module::*;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/discrete/mod.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | import_all!(ordinal);
[INFO] [stdout]    | -------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `import_all` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::$module::*`
[INFO] [stdout]   --> src/macros.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         pub use self::$module::*;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | import_all!(arrays);
[INFO] [stdout]    | ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `import_all` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::$module::*`
[INFO] [stdout]   --> src/macros.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         pub use self::$module::*;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | import_all!(tuples);
[INFO] [stdout]    | ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `import_all` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.45s
[INFO] running `Command { std: "docker" "inspect" "e78d73bef36b7358fd6765ca79d8ceebc4a20f2745315f6b7e632a16db5c68bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e78d73bef36b7358fd6765ca79d8ceebc4a20f2745315f6b7e632a16db5c68bd", kill_on_drop: false }`
[INFO] [stdout] e78d73bef36b7358fd6765ca79d8ceebc4a20f2745315f6b7e632a16db5c68bd