[INFO] fetching crate vdf-classgroup 0.2.0...
[INFO] fixing vdf-classgroup-0.2.0 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=end=2015,2024 for pr-157817-2
[INFO] extracting crate vdf-classgroup 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate vdf-classgroup 0.2.0
[INFO] finished tweaking crates.io crate vdf-classgroup 0.2.0
[INFO] tweaked toml for crates.io crate vdf-classgroup 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vdf-classgroup 0.2.0 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] crate crates.io crate vdf-classgroup 0.2.0 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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] d47fb4a08907444ca9dfdeb4da5c48595295d3df44985428a91bf1079f547457
[INFO] running `Command { std: "docker" "start" "d47fb4a08907444ca9dfdeb4da5c48595295d3df44985428a91bf1079f547457", 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" "d47fb4a08907444ca9dfdeb4da5c48595295d3df44985428a91bf1079f547457" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d47fb4a08907444ca9dfdeb4da5c48595295d3df44985428a91bf1079f547457", 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" "d47fb4a08907444ca9dfdeb4da5c48595295d3df44985428a91bf1079f547457" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=end=2015,2024", kill_on_drop: false }`
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Compiling zerocopy v0.8.49
[INFO] [stderr]    Compiling vdf-classgroup v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling zerocopy-derive v0.8.49
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Migrating build.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating src/lib.rs from 2021 edition to 2024
[INFO] [stderr]        Fixed src/gmp_classgroup/ffi.rs (3 fixes)
[INFO] [stderr]        Fixed src/gmp/mpz.rs (12 fixes)
[INFO] [stderr]        Fixed src/gmp/ffi.rs (1 fix)
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]        Fixed src/gmp/test.rs (1 fix)
[INFO] [stderr]    Migrating bench/bench.rs from 2021 edition to 2024
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.13s
[INFO] [stderr] crater-edition-check: vdf-classgroup v0.2.0 (/opt/rustwide/workdir) updating edition from 2021 to 2024
[INFO] [stderr]    Compiling vdf-classgroup v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: usage of an `unsafe extern` block
[INFO] [stdout]   --> src/gmp/ffi.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout]  4 | / unsafe extern "C" {
[INFO] [stdout]  5 | |     pub fn __gmpz_fdiv_q(q: mpz_ptr, n: mpz_srcptr, d: mpz_srcptr);
[INFO] [stdout]  6 | |     pub fn __gmpz_cdiv_q(q: mpz_ptr, n: mpz_srcptr, d: mpz_srcptr);
[INFO] [stdout]  7 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![deny(unsafe_code)]
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: usage of an `unsafe extern` block
[INFO] [stdout]   --> src/gmp/ffi.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout]  4 | / unsafe extern "C" {
[INFO] [stdout]  5 | |     pub fn __gmpz_fdiv_q(q: mpz_ptr, n: mpz_srcptr, d: mpz_srcptr);
[INFO] [stdout]  6 | |     pub fn __gmpz_cdiv_q(q: mpz_ptr, n: mpz_srcptr, d: mpz_srcptr);
[INFO] [stdout]  7 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![deny(unsafe_code)]
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: usage of an `unsafe extern` block
[INFO] [stdout]  --> src/gmp/test.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | / unsafe extern "C" {
[INFO] [stdout] 7 | |     static __gmp_bits_per_limb: c_int;
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/gmp_classgroup/ffi.rs:244:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |     unsafe fn raw_export(v: &mut [u8], offset: usize, obj: &Mpz) -> usize { unsafe {
[INFO] [stdout]     |                                                                             ------ because it's nested under this `unsafe` block
[INFO] [stdout] ...
[INFO] [stdout] 244 |         let s = unsafe { s.assume_init() };
[INFO] [stdout]     |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vdf-classgroup` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/gmp_classgroup/ffi.rs:244:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |     unsafe fn raw_export(v: &mut [u8], offset: usize, obj: &Mpz) -> usize { unsafe {
[INFO] [stdout]     |                                                                             ------ because it's nested under this `unsafe` block
[INFO] [stdout] ...
[INFO] [stdout] 244 |         let s = unsafe { s.assume_init() };
[INFO] [stdout]     |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vdf-classgroup` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d47fb4a08907444ca9dfdeb4da5c48595295d3df44985428a91bf1079f547457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d47fb4a08907444ca9dfdeb4da5c48595295d3df44985428a91bf1079f547457", kill_on_drop: false }`
[INFO] [stdout] d47fb4a08907444ca9dfdeb4da5c48595295d3df44985428a91bf1079f547457
