[INFO] cloning repository https://github.com/keelgur/simplechain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keelgur/simplechain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeelgur%2Fsimplechain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeelgur%2Fsimplechain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f4b5201e8e097e6987a5788066b7aed7649a144
[INFO] testing keelgur/simplechain against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeelgur%2Fsimplechain" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/keelgur/simplechain on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/keelgur/simplechain
[INFO] finished tweaking git repo https://github.com/keelgur/simplechain
[INFO] tweaked toml for git repo https://github.com/keelgur/simplechain written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/keelgur/simplechain 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5edcad60edd2dcdfba8b598b2d26477ee2dfec2bf98a8a60ee2a375102403f22
[INFO] running `Command { std: "docker" "start" "-a" "5edcad60edd2dcdfba8b598b2d26477ee2dfec2bf98a8a60ee2a375102403f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5edcad60edd2dcdfba8b598b2d26477ee2dfec2bf98a8a60ee2a375102403f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5edcad60edd2dcdfba8b598b2d26477ee2dfec2bf98a8a60ee2a375102403f22", kill_on_drop: false }`
[INFO] [stdout] 5edcad60edd2dcdfba8b598b2d26477ee2dfec2bf98a8a60ee2a375102403f22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fde8aecd41c19885b709e93b5995d435965203cea5019983b1831c328e896c1
[INFO] running `Command { std: "docker" "start" "-a" "5fde8aecd41c19885b709e93b5995d435965203cea5019983b1831c328e896c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling borsh-schema-derive-internal v0.9.3
[INFO] [stderr]    Compiling borsh-derive-internal v0.9.3
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling borsh-derive v0.9.3
[INFO] [stderr]    Compiling borsh v0.9.3
[INFO] [stderr]    Compiling simplechain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]    --> src/chain.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let hash = s.finish();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chain.rs:204:17
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let mut l:Vec<Block>=Vec::new();
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `EmptyMempoolError` and `NotEnoughTransactionsError` are never constructed
[INFO] [stdout]   --> src/chain.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Errs{
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 13 |     EmptyMempoolError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     NotEnoughTransactionsError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errs` has a derived impl for the trait `Debug`, 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: associated function `new` is never used
[INFO] [stdout]   --> src/chain.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Transaction{
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 27 |     pub fn new(fr:&str,t:&str,am:f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `hash_block`, and `get_prev` are never used
[INFO] [stdout]   --> src/chain.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Block{
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 45 |     pub fn new(pr:&str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn hash_block(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn get_prev(&self)->String{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mempool` is never constructed
[INFO] [stdout]   --> src/chain.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Mempool{
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/chain.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl Mempool{
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 68 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `on_transaction`, and `mint` are never used
[INFO] [stdout]   --> src/chain.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl Blockchain{
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 74 |     pub fn new(mut list: Vec<Block>) -> Self{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |      pub fn on_transaction(tx: Transaction, pool:&mut Mempool) {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn mint(&mut self, pool: &mut Mempool) ->Result<(),Errs>{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]    --> src/chain.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Header{
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mint_pow` is never used
[INFO] [stdout]    --> src/chain.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl Blockchain{
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] 116 |     fn mint_pow(&mut self, pool: &mut Mempool)->Result<Header,Errs>{
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `difficulty` and `save_path` are never read
[INFO] [stdout]    --> src/chain.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub struct Config{
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 152 |     difficulty: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 153 |     save_path: String,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_config` is never used
[INFO] [stdout]    --> src/chain.rs:156:8
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub fn load_config()->Config{
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_savepath` is never used
[INFO] [stdout]    --> src/chain.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 163 | impl Config{
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] 164 |     pub fn get_savepath(&self)->String{
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mine_block` is never used
[INFO] [stdout]    --> src/chain.rs:170:4
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn mine_block(b:&Block, head:&Header, diff:&Config) -> (u64, String) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `load` and `save` are never used
[INFO] [stdout]    --> src/chain.rs:193:12
[INFO] [stdout]     |
[INFO] [stdout] 192 | impl Blockchain{
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] 193 |     pub fn load<P: AsRef<Path>>(&self,path: P) -> Blockchain {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |     pub fn save(&self,config: &Config) -> std::io::Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.42s
[INFO] running `Command { std: "docker" "inspect" "5fde8aecd41c19885b709e93b5995d435965203cea5019983b1831c328e896c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fde8aecd41c19885b709e93b5995d435965203cea5019983b1831c328e896c1", kill_on_drop: false }`
[INFO] [stdout] 5fde8aecd41c19885b709e93b5995d435965203cea5019983b1831c328e896c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 482aea1645a5c0ccb00118cb181e71df624934d43fd749b47300afaebfb05e07
[INFO] running `Command { std: "docker" "start" "-a" "482aea1645a5c0ccb00118cb181e71df624934d43fd749b47300afaebfb05e07", kill_on_drop: false }`
[INFO] [stderr]    Compiling simplechain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]    --> src/chain.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let hash = s.finish();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chain.rs:204:17
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let mut l:Vec<Block>=Vec::new();
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NotEnoughTransactionsError` is never constructed
[INFO] [stdout]   --> src/chain.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Errs{
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 13 |     EmptyMempoolError,
[INFO] [stdout] 14 |     NotEnoughTransactionsError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errs` has a derived impl for the trait `Debug`, 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: struct `Header` is never constructed
[INFO] [stdout]    --> src/chain.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Header{
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mint_pow` is never used
[INFO] [stdout]    --> src/chain.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl Blockchain{
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] 116 |     fn mint_pow(&mut self, pool: &mut Mempool)->Result<Header,Errs>{
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `difficulty` is never read
[INFO] [stdout]    --> src/chain.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub struct Config{
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 152 |     difficulty: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mine_block` is never used
[INFO] [stdout]    --> src/chain.rs:170:4
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn mine_block(b:&Block, head:&Header, diff:&Config) -> (u64, String) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "482aea1645a5c0ccb00118cb181e71df624934d43fd749b47300afaebfb05e07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "482aea1645a5c0ccb00118cb181e71df624934d43fd749b47300afaebfb05e07", kill_on_drop: false }`
[INFO] [stdout] 482aea1645a5c0ccb00118cb181e71df624934d43fd749b47300afaebfb05e07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3812193e6589ce71818b8c6ab5d6ab5bbb2863120c7ab1099b437b7caa34ebd4
[INFO] running `Command { std: "docker" "start" "-a" "3812193e6589ce71818b8c6ab5d6ab5bbb2863120c7ab1099b437b7caa34ebd4", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `hash`
[INFO] [stderr]    --> src/chain.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let hash = s.finish();
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/chain.rs:204:17
[INFO] [stderr]     |
[INFO] [stderr] 204 |             let mut l:Vec<Block>=Vec::new();
[INFO] [stderr]     |                 ----^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `NotEnoughTransactionsError` is never constructed
[INFO] [stderr]   --> src/chain.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum Errs{
[INFO] [stderr]    |          ---- variant in this enum
[INFO] [stderr] 13 |     EmptyMempoolError,
[INFO] [stderr] 14 |     NotEnoughTransactionsError,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Errs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Header` is never constructed
[INFO] [stderr]    --> src/chain.rs:108:12
[INFO] [stderr]     |
[INFO] [stderr] 108 | pub struct Header{
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `mint_pow` is never used
[INFO] [stderr]    --> src/chain.rs:116:8
[INFO] [stderr]     |
[INFO] [stderr] 115 | impl Blockchain{
[INFO] [stderr]     | --------------- method in this implementation
[INFO] [stderr] 116 |     fn mint_pow(&mut self, pool: &mut Mempool)->Result<Header,Errs>{
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `difficulty` is never read
[INFO] [stderr]    --> src/chain.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 151 | pub struct Config{
[INFO] [stderr]     |            ------ field in this struct
[INFO] [stderr] 152 |     difficulty: String,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `mine_block` is never used
[INFO] [stderr]    --> src/chain.rs:170:4
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn mine_block(b:&Block, head:&Header, diff:&Config) -> (u64, String) {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `simplechain` (bin "simplechain" test) generated 7 warnings (run `cargo fix --bin "simplechain" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/simplechain-8b37726185cdd8cb)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::test_hasher ... ok
[INFO] [stdout] test test::test_blockchain ... ok
[INFO] [stdout] test test::test_config ... ok
[INFO] [stdout] test test::test_saveload ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test::test_saveload stdout ----
[INFO] [stdout] thread 'test::test_saveload' panicked at src/test.rs:116:22:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x563fc3fc244c - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x563fc3fc244c - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x563fc3fc244c - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x563fc3fc244c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x563fc3febfa0 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x563fc3febfa0 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x563fc3fbfdff - std::io::Write::write_fmt::h040b369f3a0f9cbc
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x563fc3fc2234 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x563fc3fc2234 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x563fc3fc3ef7 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x563fc3fc3be3 - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x563fc3f88517 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0ad024c9bdc6d768
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   12:     0x563fc3f88517 - test::test_main::{{closure}}::h7500b54257359db6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x563fc3fc4508 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1f8f335eaa9cfaee
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   14:     0x563fc3fc4508 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x563fc3fc425e - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x563fc3fc2916 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stdout]   17:     0x563fc3fc3fc2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x563fc3f35cf5 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x563fc3f36283 - core::result::unwrap_failed::hddb4fea594200c52
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:1653:5
[INFO] [stdout]   20:     0x563fc3f41b9d - core::result::Result<T,E>::unwrap::h4bde93b50d227311
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:1077:23
[INFO] [stdout]   21:     0x563fc3f460cb - simplechain::test::test_saveload::hf27c70fa1e3c6e5b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:116:20
[INFO] [stdout]   22:     0x563fc3f45a27 - simplechain::test::test_saveload::{{closure}}::ha5a21da059172069
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:92:23
[INFO] [stdout]   23:     0x563fc3f40ab6 - core::ops::function::FnOnce::call_once::h2303aab486f62858
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x563fc3f8db6f - core::ops::function::FnOnce::call_once::h2b5d431d5046312d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x563fc3f8db6f - test::__rust_begin_short_backtrace::h7714669af176e207
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   26:     0x563fc3f8cb85 - test::run_test_in_process::{{closure}}::h85218797dcbcec12
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]   27:     0x563fc3f8cb85 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h76c106ea31c14d7b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x563fc3f8cb85 - std::panicking::try::do_call::h3bd5d0f6620ee946
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   29:     0x563fc3f8cb85 - std::panicking::try::h232e535e4744fe31
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   30:     0x563fc3f8cb85 - std::panic::catch_unwind::h3ce3bd6ca8dbac68
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   31:     0x563fc3f8cb85 - test::run_test_in_process::hc97b257c9621286a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]   32:     0x563fc3f8cb85 - test::run_test::{{closure}}::h2aa798823a438d38
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   33:     0x563fc3f54e46 - test::run_test::{{closure}}::h87d231c78fb59832
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]   34:     0x563fc3f54e46 - std::sys_common::backtrace::__rust_begin_short_backtrace::he6df152596625789
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stdout]   35:     0x563fc3f59ef7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha94be15d1e0acf36
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   36:     0x563fc3f59ef7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9dc6bd6372f16606
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x563fc3f59ef7 - std::panicking::try::do_call::h9057517f80303cd4
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   38:     0x563fc3f59ef7 - std::panicking::try::he3a30b11ee45340c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   39:     0x563fc3f59ef7 - std::panic::catch_unwind::h410458cfd3528b8b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x563fc3f59ef7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h72ac3bdb567b737b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   41:     0x563fc3f59ef7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h38f34da3654a8344
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x563fc3fc8f95 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7eafaff61e32df9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   43:     0x563fc3fc8f95 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ba4a5de48dd2304
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   44:     0x563fc3fc8f95 - std::sys::unix::thread::Thread::new::thread_start::he469335aef763e45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7f71dd834ac3 - <unknown>
[INFO] [stdout]   46:     0x7f71dd8c5bf4 - __clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test::test_saveload
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin simplechain`
[INFO] running `Command { std: "docker" "inspect" "3812193e6589ce71818b8c6ab5d6ab5bbb2863120c7ab1099b437b7caa34ebd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3812193e6589ce71818b8c6ab5d6ab5bbb2863120c7ab1099b437b7caa34ebd4", kill_on_drop: false }`
[INFO] [stdout] 3812193e6589ce71818b8c6ab5d6ab5bbb2863120c7ab1099b437b7caa34ebd4
[INFO] testing keelgur/simplechain against beta-2023-12-22 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeelgur%2Fsimplechain" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/keelgur/simplechain on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/keelgur/simplechain
[INFO] finished tweaking git repo https://github.com/keelgur/simplechain
[INFO] tweaked toml for git repo https://github.com/keelgur/simplechain written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/keelgur/simplechain 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcca78fbf85e7f1ff2a6ed7502e208e37eb28252affa2f2dbeaa77a472b14012
[INFO] running `Command { std: "docker" "start" "-a" "bcca78fbf85e7f1ff2a6ed7502e208e37eb28252affa2f2dbeaa77a472b14012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcca78fbf85e7f1ff2a6ed7502e208e37eb28252affa2f2dbeaa77a472b14012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcca78fbf85e7f1ff2a6ed7502e208e37eb28252affa2f2dbeaa77a472b14012", kill_on_drop: false }`
[INFO] [stdout] bcca78fbf85e7f1ff2a6ed7502e208e37eb28252affa2f2dbeaa77a472b14012
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b4fbeb660a24b18e311f07311072b0bc6722d2a1e4882c23b3e38aa9edc9600
[INFO] running `Command { std: "docker" "start" "-a" "5b4fbeb660a24b18e311f07311072b0bc6722d2a1e4882c23b3e38aa9edc9600", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling borsh-derive-internal v0.9.3
[INFO] [stderr]    Compiling borsh-schema-derive-internal v0.9.3
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling borsh-derive v0.9.3
[INFO] [stderr]    Compiling borsh v0.9.3
[INFO] [stderr]    Compiling simplechain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]    --> src/chain.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let hash = s.finish();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chain.rs:204:17
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let mut l:Vec<Block>=Vec::new();
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `EmptyMempoolError` and `NotEnoughTransactionsError` are never constructed
[INFO] [stdout]   --> src/chain.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Errs{
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 13 |     EmptyMempoolError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     NotEnoughTransactionsError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errs` has a derived impl for the trait `Debug`, 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: associated function `new` is never used
[INFO] [stdout]   --> src/chain.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Transaction{
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 27 |     pub fn new(fr:&str,t:&str,am:f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `hash_block`, and `get_prev` are never used
[INFO] [stdout]   --> src/chain.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Block{
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 45 |     pub fn new(pr:&str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn hash_block(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn get_prev(&self)->String{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mempool` is never constructed
[INFO] [stdout]   --> src/chain.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Mempool{
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/chain.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl Mempool{
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 68 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `on_transaction`, and `mint` are never used
[INFO] [stdout]   --> src/chain.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl Blockchain{
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 74 |     pub fn new(mut list: Vec<Block>) -> Self{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |      pub fn on_transaction(tx: Transaction, pool:&mut Mempool) {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn mint(&mut self, pool: &mut Mempool) ->Result<(),Errs>{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]    --> src/chain.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Header{
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mint_pow` is never used
[INFO] [stdout]    --> src/chain.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl Blockchain{
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] 116 |     fn mint_pow(&mut self, pool: &mut Mempool)->Result<Header,Errs>{
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `difficulty` and `save_path` are never read
[INFO] [stdout]    --> src/chain.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub struct Config{
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 152 |     difficulty: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 153 |     save_path: String,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_config` is never used
[INFO] [stdout]    --> src/chain.rs:156:8
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub fn load_config()->Config{
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_savepath` is never used
[INFO] [stdout]    --> src/chain.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 163 | impl Config{
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] 164 |     pub fn get_savepath(&self)->String{
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mine_block` is never used
[INFO] [stdout]    --> src/chain.rs:170:4
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn mine_block(b:&Block, head:&Header, diff:&Config) -> (u64, String) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `load` and `save` are never used
[INFO] [stdout]    --> src/chain.rs:193:12
[INFO] [stdout]     |
[INFO] [stdout] 192 | impl Blockchain{
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] 193 |     pub fn load<P: AsRef<Path>>(&self,path: P) -> Blockchain {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |     pub fn save(&self,config: &Config) -> std::io::Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.40s
[INFO] running `Command { std: "docker" "inspect" "5b4fbeb660a24b18e311f07311072b0bc6722d2a1e4882c23b3e38aa9edc9600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b4fbeb660a24b18e311f07311072b0bc6722d2a1e4882c23b3e38aa9edc9600", kill_on_drop: false }`
[INFO] [stdout] 5b4fbeb660a24b18e311f07311072b0bc6722d2a1e4882c23b3e38aa9edc9600
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 209ca62c1d7042b20a8ca9f37b71defde7d8841054b42e3de72ee1a8fa9bc8ee
[INFO] running `Command { std: "docker" "start" "-a" "209ca62c1d7042b20a8ca9f37b71defde7d8841054b42e3de72ee1a8fa9bc8ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling simplechain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]    --> src/chain.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let hash = s.finish();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chain.rs:204:17
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let mut l:Vec<Block>=Vec::new();
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NotEnoughTransactionsError` is never constructed
[INFO] [stdout]   --> src/chain.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Errs{
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 13 |     EmptyMempoolError,
[INFO] [stdout] 14 |     NotEnoughTransactionsError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errs` has a derived impl for the trait `Debug`, 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: struct `Header` is never constructed
[INFO] [stdout]    --> src/chain.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Header{
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mint_pow` is never used
[INFO] [stdout]    --> src/chain.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl Blockchain{
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] 116 |     fn mint_pow(&mut self, pool: &mut Mempool)->Result<Header,Errs>{
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `difficulty` is never read
[INFO] [stdout]    --> src/chain.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub struct Config{
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 152 |     difficulty: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mine_block` is never used
[INFO] [stdout]    --> src/chain.rs:170:4
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn mine_block(b:&Block, head:&Header, diff:&Config) -> (u64, String) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "209ca62c1d7042b20a8ca9f37b71defde7d8841054b42e3de72ee1a8fa9bc8ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "209ca62c1d7042b20a8ca9f37b71defde7d8841054b42e3de72ee1a8fa9bc8ee", kill_on_drop: false }`
[INFO] [stdout] 209ca62c1d7042b20a8ca9f37b71defde7d8841054b42e3de72ee1a8fa9bc8ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3f1d5c010b6a3837762e946e3f49dedc4146d839b0f5531d6694fa351e699194
[INFO] running `Command { std: "docker" "start" "-a" "3f1d5c010b6a3837762e946e3f49dedc4146d839b0f5531d6694fa351e699194", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `hash`
[INFO] [stderr]    --> src/chain.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let hash = s.finish();
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/chain.rs:204:17
[INFO] [stderr]     |
[INFO] [stderr] 204 |             let mut l:Vec<Block>=Vec::new();
[INFO] [stderr]     |                 ----^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `NotEnoughTransactionsError` is never constructed
[INFO] [stderr]   --> src/chain.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum Errs{
[INFO] [stderr]    |          ---- variant in this enum
[INFO] [stderr] 13 |     EmptyMempoolError,
[INFO] [stderr] 14 |     NotEnoughTransactionsError,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Errs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Header` is never constructed
[INFO] [stderr]    --> src/chain.rs:108:12
[INFO] [stderr]     |
[INFO] [stderr] 108 | pub struct Header{
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `mint_pow` is never used
[INFO] [stderr]    --> src/chain.rs:116:8
[INFO] [stderr]     |
[INFO] [stderr] 115 | impl Blockchain{
[INFO] [stderr]     | --------------- method in this implementation
[INFO] [stderr] 116 |     fn mint_pow(&mut self, pool: &mut Mempool)->Result<Header,Errs>{
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `difficulty` is never read
[INFO] [stderr]    --> src/chain.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 151 | pub struct Config{
[INFO] [stderr]     |            ------ field in this struct
[INFO] [stderr] 152 |     difficulty: String,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `mine_block` is never used
[INFO] [stderr]    --> src/chain.rs:170:4
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn mine_block(b:&Block, head:&Header, diff:&Config) -> (u64, String) {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `simplechain` (bin "simplechain" test) generated 7 warnings (run `cargo fix --bin "simplechain" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/simplechain-0bdaeb3b7b30b092)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::test_blockchain ... ok
[INFO] [stdout] test test::test_hasher ... ok
[INFO] [stdout] test test::test_config ... ok
[INFO] [stdout] test test::test_saveload ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test::test_saveload stdout ----
[INFO] [stdout] thread 'test::test_saveload' panicked at src/test.rs:116:22:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5596d8fae9e6 - std::backtrace_rs::backtrace::libunwind::trace::h261606ad26a499c1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x5596d8fae9e6 - std::backtrace_rs::backtrace::trace_unsynchronized::hd183f0625477fb28
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5596d8fae9e6 - std::sys_common::backtrace::_print_fmt::hd7f8fef21b4eda67
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x5596d8fae9e6 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h623d9b51f2f453f1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x5596d8fd7840 - core::fmt::rt::Argument::fmt::h9f417ac76a86f368
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x5596d8fd7840 - core::fmt::write::hc9b6faf4ac2aeff7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x5596d8fac44f - std::io::Write::write_fmt::he04625a3a989fec3
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:1810:15
[INFO] [stdout]    7:     0x5596d8fae7c4 - std::sys_common::backtrace::_print::hd5d66399c7df88a2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x5596d8fae7c4 - std::sys_common::backtrace::print::he81ed2da642d37e5
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x5596d8fb0537 - std::panicking::default_hook::{{closure}}::h85773f4fa117163d
[INFO] [stdout]   10:     0x5596d8fb021d - std::panicking::default_hook::h6a1694a91d09b278
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x5596d8f74dc7 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h616ac37fa3cd6c8f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   12:     0x5596d8f74dc7 - test::test_main::{{closure}}::h00d84697cefdcbb6
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x5596d8fb0b56 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcb3fe3b9bb537ba8
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   14:     0x5596d8fb0b56 - std::panicking::rust_panic_with_hook::h0a7ad96e90f7145b
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x5596d8fb08a2 - std::panicking::begin_panic_handler::{{closure}}::h7919090525c6485e
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x5596d8faeee6 - std::sys_common::backtrace::__rust_end_short_backtrace::hf3289479464f7dfe
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x5596d8fb0600 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x5596d8f20cd5 - core::panicking::panic_fmt::hcc9f77c5c132af55
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x5596d8f21273 - core::result::unwrap_failed::hbe14f498be1452f9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1649:5
[INFO] [stdout]   20:     0x5596d8f2de8d - core::result::Result<T,E>::unwrap::hb988a5d5962a02c7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1073:23
[INFO] [stdout]   21:     0x5596d8f3715b - simplechain::test::test_saveload::hd66c953dc6063832
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:116:20
[INFO] [stdout]   22:     0x5596d8f36ab7 - simplechain::test::test_saveload::{{closure}}::hb0f2ee69251821c6
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:92:23
[INFO] [stdout]   23:     0x5596d8f2c5c6 - core::ops::function::FnOnce::call_once::h93bbe6e6ad05e61e
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5596d8f7a69f - core::ops::function::FnOnce::call_once::hd64d26f405258157
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5596d8f7a69f - test::__rust_begin_short_backtrace::he21b0b7a6d731bf9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:627:18
[INFO] [stdout]   26:     0x5596d8f79421 - test::run_test_in_process::{{closure}}::hf5c73986d7bdfde2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:60
[INFO] [stdout]   27:     0x5596d8f79421 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330011ad032aadc0
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x5596d8f79421 - std::panicking::try::do_call::he61b0a958b795a41
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   29:     0x5596d8f79421 - std::panicking::try::h7309da130f906eb7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   30:     0x5596d8f79421 - std::panic::catch_unwind::hc5c3a06fdaf0a92a
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   31:     0x5596d8f79421 - test::run_test_in_process::h7e7b7c71c3324e0f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:27
[INFO] [stdout]   32:     0x5596d8f79421 - test::run_test::{{closure}}::h1f509f28f5cf20b1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:573:43
[INFO] [stdout]   33:     0x5596d8f40756 - test::run_test::{{closure}}::h1754218abf443f6d
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:601:41
[INFO] [stdout]   34:     0x5596d8f40756 - std::sys_common::backtrace::__rust_begin_short_backtrace::h2ee174b9d5954948
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   35:     0x5596d8f457b7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf60bee9c1a17ef09
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   36:     0x5596d8f457b7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h33d0dddec5216160
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x5596d8f457b7 - std::panicking::try::do_call::h144b3048b546f835
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   38:     0x5596d8f457b7 - std::panicking::try::h978244d04646189f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   39:     0x5596d8f457b7 - std::panic::catch_unwind::hdf436369d188fe86
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x5596d8f457b7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h87329cbdd33c79ec
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   41:     0x5596d8f457b7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h401abbe67897d450
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5596d8fb5605 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5d7c8f150ab9c84c
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   43:     0x5596d8fb5605 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h570d5b005c242c15
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   44:     0x5596d8fb5605 - std::sys::unix::thread::Thread::new::thread_start::h36b0a20c0b2361ad
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7f1e625aaac3 - <unknown>
[INFO] [stdout]   46:     0x7f1e6263bbf4 - __clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test::test_saveload
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin simplechain`
[INFO] running `Command { std: "docker" "inspect" "3f1d5c010b6a3837762e946e3f49dedc4146d839b0f5531d6694fa351e699194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f1d5c010b6a3837762e946e3f49dedc4146d839b0f5531d6694fa351e699194", kill_on_drop: false }`
[INFO] [stdout] 3f1d5c010b6a3837762e946e3f49dedc4146d839b0f5531d6694fa351e699194
