[INFO] cloning repository https://github.com/phpgoc/single_blockchain_for_learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/phpgoc/single_blockchain_for_learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphpgoc%2Fsingle_blockchain_for_learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphpgoc%2Fsingle_blockchain_for_learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d59ef8b5d265085c1fa7ec3e252b149e19dbd9e7
[INFO] fixing phpgoc/single_blockchain_for_learn against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphpgoc%2Fsingle_blockchain_for_learn" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/phpgoc/single_blockchain_for_learn
[INFO] finished tweaking git repo https://github.com/phpgoc/single_blockchain_for_learn
[INFO] tweaked toml for git repo https://github.com/phpgoc/single_blockchain_for_learn written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/phpgoc/single_blockchain_for_learn 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 git repo https://github.com/phpgoc/single_blockchain_for_learn 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-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a692242504b6703705c1878363d40771b9c98b6aa766957b7c8cd7742042394d
[INFO] running `Command { std: "docker" "start" "a692242504b6703705c1878363d40771b9c98b6aa766957b7c8cd7742042394d", 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" "a692242504b6703705c1878363d40771b9c98b6aa766957b7c8cd7742042394d" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a692242504b6703705c1878363d40771b9c98b6aa766957b7c8cd7742042394d", 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" "a692242504b6703705c1878363d40771b9c98b6aa766957b7c8cd7742042394d" "/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]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking uint v0.9.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking single_blockchain_for_learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `pre_hash`, `nonce`, `data`, `hash`, and `difficulty` are never read
[INFO] [stdout]   --> src/structs/mod.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub struct Block {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout]  7 |     pub(crate) pre_hash: String,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]  8 |     pub(crate) nonce: usize,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]  9 |     pub(crate) data: String,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 10 |     pub(crate) hash: String,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 11 |     pub(crate) difficulty: usize
[INFO] [stdout]    |                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pre_hash`, `nonce`, `data`, `hash`, and `difficulty` are never read
[INFO] [stdout]   --> src/structs/mod.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub struct Block {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout]  7 |     pub(crate) pre_hash: String,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]  8 |     pub(crate) nonce: usize,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]  9 |     pub(crate) data: String,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 10 |     pub(crate) hash: String,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 11 |     pub(crate) difficulty: usize
[INFO] [stdout]    |                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]   --> bin/bft.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         CHANNEL_VEC.push(tx);
[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]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]   --> bin/bft.rs:26:18
[INFO] [stdout]    |
[INFO] [stdout] 26 |         for j in CHANNEL_VEC.iter() {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]   --> bin/bft.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         CHANNEL_VEC.push(tx);
[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]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]   --> bin/bft.rs:26:18
[INFO] [stdout]    |
[INFO] [stdout] 26 |         for j in CHANNEL_VEC.iter() {
[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] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.86s
[INFO] [stderr] crater-edition-check: all finished
[INFO] running `Command { std: "docker" "inspect" "a692242504b6703705c1878363d40771b9c98b6aa766957b7c8cd7742042394d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a692242504b6703705c1878363d40771b9c98b6aa766957b7c8cd7742042394d", kill_on_drop: false }`
[INFO] [stdout] a692242504b6703705c1878363d40771b9c98b6aa766957b7c8cd7742042394d
