[INFO] cloning repository https://github.com/popasmuerf/rust_coin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/popasmuerf/rust_coin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpopasmuerf%2Frust_coin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpopasmuerf%2Frust_coin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62b1ee1fafaad2c44cfc023780c869d4c3565c5b
[INFO] testing popasmuerf/rust_coin against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpopasmuerf%2Frust_coin" "/workspace/builds/worker-100/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-100/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/popasmuerf/rust_coin on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/popasmuerf/rust_coin
[INFO] finished tweaking git repo https://github.com/popasmuerf/rust_coin
[INFO] tweaked toml for git repo https://github.com/popasmuerf/rust_coin written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate git repo https://github.com/popasmuerf/rust_coin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f879b7f4833ddbf90ad38fdf72de6f8395b7862aebfe58d86effaeae7d395f5b
[INFO] running `Command { std: "docker" "start" "-a" "f879b7f4833ddbf90ad38fdf72de6f8395b7862aebfe58d86effaeae7d395f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f879b7f4833ddbf90ad38fdf72de6f8395b7862aebfe58d86effaeae7d395f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f879b7f4833ddbf90ad38fdf72de6f8395b7862aebfe58d86effaeae7d395f5b", kill_on_drop: false }`
[INFO] [stdout] f879b7f4833ddbf90ad38fdf72de6f8395b7862aebfe58d86effaeae7d395f5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e4aca7fdadae78a4729a968169aeb4f14f438f9ed07ae1ecda8c7ee6a1331e3
[INFO] running `Command { std: "docker" "start" "-a" "6e4aca7fdadae78a4729a968169aeb4f14f438f9ed07ae1ecda8c7ee6a1331e3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling rust_coin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pre_hash`
[INFO] [stdout]   --> src/block.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let pre_hash = String::new();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre_hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid_chain`
[INFO] [stdout]   --> src/blockchain.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn is_valid_chain(&self) -> bool{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.03s
[INFO] running `Command { std: "docker" "inspect" "6e4aca7fdadae78a4729a968169aeb4f14f438f9ed07ae1ecda8c7ee6a1331e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e4aca7fdadae78a4729a968169aeb4f14f438f9ed07ae1ecda8c7ee6a1331e3", kill_on_drop: false }`
[INFO] [stdout] 6e4aca7fdadae78a4729a968169aeb4f14f438f9ed07ae1ecda8c7ee6a1331e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1225a57c1f9fa16173263f5cd63df5c3800b2d3a3b0dc1e713f6a8fbe8bebd4e
[INFO] running `Command { std: "docker" "start" "-a" "1225a57c1f9fa16173263f5cd63df5c3800b2d3a3b0dc1e713f6a8fbe8bebd4e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_coin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pre_hash`
[INFO] [stdout]   --> src/block.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let pre_hash = String::new();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre_hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pre_hash`
[INFO] [stdout]   --> src/block.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let pre_hash = String::new();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre_hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid_chain`
[INFO] [stdout]   --> src/blockchain.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn is_valid_chain(&self) -> bool{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "1225a57c1f9fa16173263f5cd63df5c3800b2d3a3b0dc1e713f6a8fbe8bebd4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1225a57c1f9fa16173263f5cd63df5c3800b2d3a3b0dc1e713f6a8fbe8bebd4e", kill_on_drop: false }`
[INFO] [stdout] 1225a57c1f9fa16173263f5cd63df5c3800b2d3a3b0dc1e713f6a8fbe8bebd4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 89a7eb453dc0d3164b3dda9094272c98105c250642b73727904072cb6d8a9e3c
[INFO] running `Command { std: "docker" "start" "-a" "89a7eb453dc0d3164b3dda9094272c98105c250642b73727904072cb6d8a9e3c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `pre_hash`
[INFO] [stderr]   --> src/block.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let pre_hash = String::new();
[INFO] [stderr]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre_hash`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_coin` (lib) generated 1 warning
[INFO] [stderr] warning: `rust_coin` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: associated function is never used: `is_valid_chain`
[INFO] [stderr]   --> src/blockchain.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn is_valid_chain(&self) -> bool{
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_coin` (bin "rust_coin" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustcoinlib-a2d2808bba9a23e9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_coin-ce2606b68e40ccf5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustcoinlib
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "89a7eb453dc0d3164b3dda9094272c98105c250642b73727904072cb6d8a9e3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89a7eb453dc0d3164b3dda9094272c98105c250642b73727904072cb6d8a9e3c", kill_on_drop: false }`
[INFO] [stdout] 89a7eb453dc0d3164b3dda9094272c98105c250642b73727904072cb6d8a9e3c