[INFO] updating cached repository https://github.com/b4skyx/logchain
[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] 1cb26b5867f96991516d772b6432ed8fb89c1181
[INFO] testing b4skyx/logchain against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fb4skyx%2Flogchain" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/b4skyx/logchain on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/b4skyx/logchain
[INFO] finished tweaking git repo https://github.com/b4skyx/logchain
[INFO] tweaked toml for git repo https://github.com/b4skyx/logchain written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/b4skyx/logchain already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=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" "+1.44.0" "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] 4e49829c95bf753ef9dd41f0e9bb05e8e0fc2eec532d51b7fd822749039d0cda
[INFO] running `"docker" "start" "-a" "4e49829c95bf753ef9dd41f0e9bb05e8e0fc2eec532d51b7fd822749039d0cda"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling blake2 v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling block_log v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: cannot borrow `chain` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let previous_index = &chain.last().unwrap().index;
[INFO] [stderr]    |                               ----- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 87 |         chain.push(create_block(*previous_index, logt, data, previous_hash, String::from(&salt)));
[INFO] [stderr]    |         ^^^^^                   --------------- immutable borrow later used here
[INFO] [stderr]    |         |
[INFO] [stderr]    |         mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.99s
[INFO] running `"docker" "inspect" "4e49829c95bf753ef9dd41f0e9bb05e8e0fc2eec532d51b7fd822749039d0cda"`
[INFO] running `"docker" "rm" "-f" "4e49829c95bf753ef9dd41f0e9bb05e8e0fc2eec532d51b7fd822749039d0cda"`
[INFO] [stdout] 4e49829c95bf753ef9dd41f0e9bb05e8e0fc2eec532d51b7fd822749039d0cda
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=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" "+1.44.0" "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] 23ed5450c9f16b6fce23d3ad1a787136b1276010d21729517f506f4620ee1f75
[INFO] running `"docker" "start" "-a" "23ed5450c9f16b6fce23d3ad1a787136b1276010d21729517f506f4620ee1f75"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling block_log v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: cannot borrow `chain` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let previous_index = &chain.last().unwrap().index;
[INFO] [stderr]    |                               ----- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 87 |         chain.push(create_block(*previous_index, logt, data, previous_hash, String::from(&salt)));
[INFO] [stderr]    |         ^^^^^                   --------------- immutable borrow later used here
[INFO] [stderr]    |         |
[INFO] [stderr]    |         mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "23ed5450c9f16b6fce23d3ad1a787136b1276010d21729517f506f4620ee1f75"`
[INFO] running `"docker" "rm" "-f" "23ed5450c9f16b6fce23d3ad1a787136b1276010d21729517f506f4620ee1f75"`
[INFO] [stdout] 23ed5450c9f16b6fce23d3ad1a787136b1276010d21729517f506f4620ee1f75
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=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" "+1.44.0" "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] df7369ed3dd3e8dd9aef5f4d1d618492ea997e8515731f89af460739fa63e429
[INFO] running `"docker" "start" "-a" "df7369ed3dd3e8dd9aef5f4d1d618492ea997e8515731f89af460739fa63e429"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: cannot borrow `chain` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let previous_index = &chain.last().unwrap().index;
[INFO] [stderr]    |                               ----- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 87 |         chain.push(create_block(*previous_index, logt, data, previous_hash, String::from(&salt)));
[INFO] [stderr]    |         ^^^^^                   --------------- immutable borrow later used here
[INFO] [stderr]    |         |
[INFO] [stderr]    |         mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[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/block_log-14fe82316e782528
[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" "df7369ed3dd3e8dd9aef5f4d1d618492ea997e8515731f89af460739fa63e429"`
[INFO] running `"docker" "rm" "-f" "df7369ed3dd3e8dd9aef5f4d1d618492ea997e8515731f89af460739fa63e429"`
[INFO] [stdout] df7369ed3dd3e8dd9aef5f4d1d618492ea997e8515731f89af460739fa63e429