[INFO] fetching crate dynstack 0.4.0...
[INFO] fixing dynstack-0.4.0 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] extracting crate dynstack 0.4.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate dynstack 0.4.0
[INFO] finished tweaking crates.io crate dynstack 0.4.0
[INFO] tweaked toml for crates.io crate dynstack 0.4.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dynstack 0.4.0 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 69 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.1.2 (available: v0.8.2)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded isatty v0.1.9
[INFO] [stderr]   Downloaded itertools v0.5.10
[INFO] [stderr]   Downloaded thread-scoped v1.0.2
[INFO] [stderr]   Downloaded itertools v0.4.19
[INFO] [stderr]   Downloaded num_cpus v0.2.13
[INFO] [stderr]   Downloaded term v0.4.6
[INFO] [stderr]   Downloaded cast v0.1.0
[INFO] [stderr]   Downloaded criterion v0.1.2
[INFO] [stderr]   Downloaded criterion-plot v0.1.3
[INFO] [stderr]   Downloaded criterion-stats v0.1.3
[INFO] [stderr]   Downloaded simplelog v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 3709aeb846bff2e009f178b297a05d86498f2f4eb8f4cec592efee25b34082b5
[INFO] running `Command { std: "docker" "start" "3709aeb846bff2e009f178b297a05d86498f2f4eb8f4cec592efee25b34082b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3709aeb846bff2e009f178b297a05d86498f2f4eb8f4cec592efee25b34082b5" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3709aeb846bff2e009f178b297a05d86498f2f4eb8f4cec592efee25b34082b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3709aeb846bff2e009f178b297a05d86498f2f4eb8f4cec592efee25b34082b5" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.4.33
[INFO] [stderr]     Checking cast v0.1.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling dynstack v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking criterion-stats v0.1.3
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking criterion-plot v0.1.3
[INFO] [stderr]     Checking criterion v0.1.2
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:484:6
[INFO] [stdout]     |
[INFO] [stdout] 484 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> benches/comparisons.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Large([u8; 950]);
[INFO] [stdout]   |        ----- ^^^^^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/lib.rs:405:9
[INFO] [stdout]     |
[INFO] [stdout] 405 |         core::mem::forget(t);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^-^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `u8`
[INFO] [stdout] ...
[INFO] [stdout] 414 |     dyn_push!(stack, 1u8);
[INFO] [stdout]     |     --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(forgetting_copy_types)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `dyn_push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 405 -         core::mem::forget(t);
[INFO] [stdout] 405 +         let _ = t;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/lib.rs:405:9
[INFO] [stdout]     |
[INFO] [stdout] 405 |         core::mem::forget(t);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^-^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `u32`
[INFO] [stdout] ...
[INFO] [stdout] 415 |     dyn_push!(stack, 1u32);
[INFO] [stdout]     |     ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `dyn_push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 405 -         core::mem::forget(t);
[INFO] [stdout] 405 +         let _ = t;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/lib.rs:405:9
[INFO] [stdout]     |
[INFO] [stdout] 405 |         core::mem::forget(t);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^-^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `u16`
[INFO] [stdout] ...
[INFO] [stdout] 416 |     dyn_push!(stack, 1u16);
[INFO] [stdout]     |     ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `dyn_push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 405 -         core::mem::forget(t);
[INFO] [stdout] 405 +         let _ = t;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/lib.rs:405:9
[INFO] [stdout]     |
[INFO] [stdout] 405 |         core::mem::forget(t);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^-^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `u64`
[INFO] [stdout] ...
[INFO] [stdout] 417 |     dyn_push!(stack, 1u64);
[INFO] [stdout]     |     ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `dyn_push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 405 -         core::mem::forget(t);
[INFO] [stdout] 405 +         let _ = t;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/lib.rs:405:9
[INFO] [stdout]     |
[INFO] [stdout] 405 |         core::mem::forget(t);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^-^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `u128`
[INFO] [stdout] ...
[INFO] [stdout] 418 |     dyn_push!(stack, 1u128);
[INFO] [stdout]     |     ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `dyn_push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 405 -         core::mem::forget(t);
[INFO] [stdout] 405 +         let _ = t;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/lib.rs:405:9
[INFO] [stdout]     |
[INFO] [stdout] 405 |         core::mem::forget(t);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^-^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `{closure@src/lib.rs:458:26: 458:33}`
[INFO] [stdout] ...
[INFO] [stdout] 458 |         dyn_push!(stack, move || i);
[INFO] [stdout]     |         --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `dyn_push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 405 -         core::mem::forget(t);
[INFO] [stdout] 405 +         let _ = t;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> src/lib.rs:476:18
[INFO] [stdout]     |
[INFO] [stdout] 476 |         unsafe { DROP_NUM.as_ref().unwrap() }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/lib.rs:479:18
[INFO] [stdout]     |
[INFO] [stdout] 479 |         unsafe { DROP_NUM.as_mut().unwrap() }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/lib.rs:405:9
[INFO] [stdout]     |
[INFO] [stdout] 405 |         core::mem::forget(t);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^-^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `u32`
[INFO] [stdout] ...
[INFO] [stdout] 576 |             0 => dyn_push!(stack, 0xF0B0D0E0u32),
[INFO] [stdout]     |                  ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `dyn_push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 405 -         core::mem::forget(t);
[INFO] [stdout] 405 +         let _ = t;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/lib.rs:405:9
[INFO] [stdout]     |
[INFO] [stdout] 405 |         core::mem::forget(t);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^-^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `u64`
[INFO] [stdout] ...
[INFO] [stdout] 577 |             1 => dyn_push!(stack, 0x01020304F0B0D0E0u64),
[INFO] [stdout]     |                  --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `dyn_push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 405 -         core::mem::forget(t);
[INFO] [stdout] 405 +         let _ = t;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/lib.rs:405:9
[INFO] [stdout]     |
[INFO] [stdout] 405 |         core::mem::forget(t);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^-^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `{closure@src/lib.rs:693:26: 693:33}`
[INFO] [stdout] ...
[INFO] [stdout] 693 |         dyn_push!(stack, move || i);
[INFO] [stdout]     |         --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `dyn_push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 405 -         core::mem::forget(t);
[INFO] [stdout] 405 +         let _ = t;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.74s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr] crater-edition-check: all finished
[INFO] running `Command { std: "docker" "inspect" "3709aeb846bff2e009f178b297a05d86498f2f4eb8f4cec592efee25b34082b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3709aeb846bff2e009f178b297a05d86498f2f4eb8f4cec592efee25b34082b5", kill_on_drop: false }`
[INFO] [stdout] 3709aeb846bff2e009f178b297a05d86498f2f4eb8f4cec592efee25b34082b5
