[INFO] updating cached repository shenshing/blocktest
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shenshing/blocktest
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shenshing/blocktest" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/shenshing/blocktest"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/shenshing/blocktest'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shenshing/blocktest" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/shenshing/blocktest"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/shenshing/blocktest'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5fca8b6289c7ddddcf64415545790bb1347f08ba
[INFO] sha for GitHub repo shenshing/blocktest: 5fca8b6289c7ddddcf64415545790bb1347f08ba
[INFO] validating manifest of shenshing/blocktest on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of shenshing/blocktest on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing shenshing/blocktest
[INFO] finished frobbing shenshing/blocktest
[INFO] frobbed toml for shenshing/blocktest written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/shenshing/blocktest/Cargo.toml
[INFO] started frobbing shenshing/blocktest
[INFO] finished frobbing shenshing/blocktest
[INFO] frobbed toml for shenshing/blocktest written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/shenshing/blocktest/Cargo.toml
[INFO] crate shenshing/blocktest already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking shenshing/blocktest against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-5/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/shenshing/blocktest:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5f062d776f0bb39829f8546185766f7d3169dd5560310730ef39dce9a9144395
[INFO] running `"docker" "start" "-a" "5f062d776f0bb39829f8546185766f7d3169dd5560310730ef39dce9a9144395"`
[INFO] [stderr]     Checking crypto-hash v0.3.3
[INFO] [stderr]     Checking test2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `DateTime`, `Utc`
[INFO] [stderr]    --> src/main.rs:168:14
[INFO] [stderr]     |
[INFO] [stderr] 168 | use chrono::{DateTime,Utc};
[INFO] [stderr]     |              ^^^^^^^^ ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stderr]    --> src/main.rs:169:17
[INFO] [stderr]     |
[INFO] [stderr] 169 | use std::time::{SystemTime,UNIX_EPOCH};
[INFO] [stderr]     |                 ^^^^^^^^^^ ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `block::current_time`
[INFO] [stderr]    --> src/main.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 | use block::current_time;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DateTime`, `Utc`
[INFO] [stderr]    --> src/main.rs:168:14
[INFO] [stderr]     |
[INFO] [stderr] 168 | use chrono::{DateTime,Utc};
[INFO] [stderr]     |              ^^^^^^^^ ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stderr]    --> src/main.rs:169:17
[INFO] [stderr]     |
[INFO] [stderr] 169 | use std::time::{SystemTime,UNIX_EPOCH};
[INFO] [stderr]     |                 ^^^^^^^^^^ ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `block::current_time`
[INFO] [stderr]    --> src/main.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 | use block::current_time;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `time` is never read
[INFO] [stderr]    --> src/block.rs:164:17
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let mut time = String::new();
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `st` is never read
[INFO] [stderr]    --> src/block.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |     let mut st = String::new();
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s2` is never read
[INFO] [stderr]   --> src/block.rs:65:21
[INFO] [stderr]    |
[INFO] [stderr] 65 |             let mut s2 = String::new();
[INFO] [stderr]    |                     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `value_hash` is never read
[INFO] [stderr]   --> src/block.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |             let mut value_hash: Vec<u8> = Vec::new();
[INFO] [stderr]    |                     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:182:13
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let mut block1 = Block::genesis_block();
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/block.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |             let mut s1 = s2 + &time;
[INFO] [stderr]    |                 ----^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vector_loop`
[INFO] [stderr]    --> src/main.rs:145:1
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn vector_loop(vector: &[String]){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]    --> src/block.rs:195:1
[INFO] [stderr]     |
[INFO] [stderr] 195 | fn main(){
[INFO] [stderr]     | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `time` is never read
[INFO] [stderr]    --> src/block.rs:164:17
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let mut time = String::new();
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `st` is never read
[INFO] [stderr]    --> src/block.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |     let mut st = String::new();
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s2` is never read
[INFO] [stderr]   --> src/block.rs:65:21
[INFO] [stderr]    |
[INFO] [stderr] 65 |             let mut s2 = String::new();
[INFO] [stderr]    |                     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `value_hash` is never read
[INFO] [stderr]   --> src/block.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |             let mut value_hash: Vec<u8> = Vec::new();
[INFO] [stderr]    |                     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:182:13
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let mut block1 = Block::genesis_block();
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/block.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |             let mut s1 = s2 + &time;
[INFO] [stderr]    |                 ----^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vector_loop`
[INFO] [stderr]    --> src/main.rs:145:1
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn vector_loop(vector: &[String]){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]    --> src/block.rs:195:1
[INFO] [stderr]     |
[INFO] [stderr] 195 | fn main(){
[INFO] [stderr]     | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `"docker" "inspect" "5f062d776f0bb39829f8546185766f7d3169dd5560310730ef39dce9a9144395"`
[INFO] running `"docker" "rm" "-f" "5f062d776f0bb39829f8546185766f7d3169dd5560310730ef39dce9a9144395"`
[INFO] [stdout] 5f062d776f0bb39829f8546185766f7d3169dd5560310730ef39dce9a9144395