[INFO] updating cached repository https://github.com/MonadProject/ledger
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] d8f25f9c9aef42eac40cd7da448105b8c1ef4406
[INFO] testing MonadProject/ledger against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonadProject%2Fledger" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MonadProject/ledger on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/MonadProject/ledger
[INFO] finished tweaking git repo https://github.com/MonadProject/ledger
[INFO] tweaked toml for git repo https://github.com/MonadProject/ledger written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/MonadProject/ledger already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 28cb7a0a773dab1aa6fbd601b8ab95a6d70f2decb82d088fb56a8094fdfdc5fc
[INFO] running `"docker" "start" "-a" "28cb7a0a773dab1aa6fbd601b8ab95a6d70f2decb82d088fb56a8094fdfdc5fc"`
[INFO] [stderr]    Compiling monadledger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]  --> src/main.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let b = &&a[0];
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.05s
[INFO] running `"docker" "inspect" "28cb7a0a773dab1aa6fbd601b8ab95a6d70f2decb82d088fb56a8094fdfdc5fc"`
[INFO] running `"docker" "rm" "-f" "28cb7a0a773dab1aa6fbd601b8ab95a6d70f2decb82d088fb56a8094fdfdc5fc"`
[INFO] [stdout] 28cb7a0a773dab1aa6fbd601b8ab95a6d70f2decb82d088fb56a8094fdfdc5fc
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e912162fb662daf2294523f884132cb7edf0ff822d6827e4919edcd76333d2e8
[INFO] running `"docker" "start" "-a" "e912162fb662daf2294523f884132cb7edf0ff822d6827e4919edcd76333d2e8"`
[INFO] [stderr]    Compiling monadledger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]  --> src/main.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let b = &&a[0];
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "e912162fb662daf2294523f884132cb7edf0ff822d6827e4919edcd76333d2e8"`
[INFO] running `"docker" "rm" "-f" "e912162fb662daf2294523f884132cb7edf0ff822d6827e4919edcd76333d2e8"`
[INFO] [stdout] e912162fb662daf2294523f884132cb7edf0ff822d6827e4919edcd76333d2e8
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] e31d2960692114fc94829a1fbffb1288cc77d1ab0542aee9a4bd15aada9cd3ce
[INFO] running `"docker" "start" "-a" "e31d2960692114fc94829a1fbffb1288cc77d1ab0542aee9a4bd15aada9cd3ce"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/monadledger-8a7999b3a3b0015b
[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" "e31d2960692114fc94829a1fbffb1288cc77d1ab0542aee9a4bd15aada9cd3ce"`
[INFO] running `"docker" "rm" "-f" "e31d2960692114fc94829a1fbffb1288cc77d1ab0542aee9a4bd15aada9cd3ce"`
[INFO] [stdout] e31d2960692114fc94829a1fbffb1288cc77d1ab0542aee9a4bd15aada9cd3ce