[INFO] updating cached repository https://github.com/Biacco42/rusty_blockchain_study
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 06407706ba244043b8ec4030636504fd6894bbb1
[INFO] testing Biacco42/rusty_blockchain_study against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBiacco42%2Frusty_blockchain_study" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Biacco42/rusty_blockchain_study on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Biacco42/rusty_blockchain_study
[INFO] finished tweaking git repo https://github.com/Biacco42/rusty_blockchain_study
[INFO] tweaked toml for git repo https://github.com/Biacco42/rusty_blockchain_study written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Biacco42/rusty_blockchain_study already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ef51b7e391e19868b8ca2aba057cc77a90d80e6c96b946650e1246cc730bde1f
[INFO] running `"docker" "start" "-a" "ef51b7e391e19868b8ca2aba057cc77a90d80e6c96b946650e1246cc730bde1f"`
[INFO] [stderr]    Compiling rusty_blockchain_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `hello`
[INFO] [stderr]  --> src/node/mod.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn hello() -> String {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `"docker" "inspect" "ef51b7e391e19868b8ca2aba057cc77a90d80e6c96b946650e1246cc730bde1f"`
[INFO] running `"docker" "rm" "-f" "ef51b7e391e19868b8ca2aba057cc77a90d80e6c96b946650e1246cc730bde1f"`
[INFO] [stdout] ef51b7e391e19868b8ca2aba057cc77a90d80e6c96b946650e1246cc730bde1f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c5ca2d00419b430840a81dc8457d9cdeac5a29a3f518d9751c0177903b182ee0
[INFO] running `"docker" "start" "-a" "c5ca2d00419b430840a81dc8457d9cdeac5a29a3f518d9751c0177903b182ee0"`
[INFO] [stderr]    Compiling rusty_blockchain_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `hello`
[INFO] [stderr]  --> src/node/mod.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn hello() -> String {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hello`
[INFO] [stderr]  --> src/node/mod.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn hello() -> String {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `"docker" "inspect" "c5ca2d00419b430840a81dc8457d9cdeac5a29a3f518d9751c0177903b182ee0"`
[INFO] running `"docker" "rm" "-f" "c5ca2d00419b430840a81dc8457d9cdeac5a29a3f518d9751c0177903b182ee0"`
[INFO] [stdout] c5ca2d00419b430840a81dc8457d9cdeac5a29a3f518d9751c0177903b182ee0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a1dcc52d4675ff27d1b8f18b5749e9fbe0244f8a9714124f9c253c78d7a888db
[INFO] running `"docker" "start" "-a" "a1dcc52d4675ff27d1b8f18b5749e9fbe0244f8a9714124f9c253c78d7a888db"`
[INFO] [stderr] warning: function is never used: `hello`
[INFO] [stderr]  --> src/node/mod.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn hello() -> String {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hello`
[INFO] [stderr]  --> src/node/mod.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn hello() -> String {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rusty_blockchain_study-665d38012da07c89
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rusty_blockchain_study-82f4dfe75f66927d
[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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusty_blockchain_study
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a1dcc52d4675ff27d1b8f18b5749e9fbe0244f8a9714124f9c253c78d7a888db"`
[INFO] running `"docker" "rm" "-f" "a1dcc52d4675ff27d1b8f18b5749e9fbe0244f8a9714124f9c253c78d7a888db"`
[INFO] [stdout] a1dcc52d4675ff27d1b8f18b5749e9fbe0244f8a9714124f9c253c78d7a888db