[INFO] cloning repository https://github.com/yukimura45z/pagerank-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yukimura45z/pagerank-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukimura45z%2Fpagerank-rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukimura45z%2Fpagerank-rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c069cea0ffa492f860ec7b4229e3e98da37698fa
[INFO] testing yukimura45z/pagerank-rust against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukimura45z%2Fpagerank-rust" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yukimura45z/pagerank-rust 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/yukimura45z/pagerank-rust
[INFO] finished tweaking git repo https://github.com/yukimura45z/pagerank-rust
[INFO] tweaked toml for git repo https://github.com/yukimura45z/pagerank-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/yukimura45z/pagerank-rust 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] d69e4a9de3f60f47e28e43cfc19f03569ec57942462cec63eee19556993a04b4
[INFO] running `"docker" "start" "-a" "d69e4a9de3f60f47e28e43cfc19f03569ec57942462cec63eee19556993a04b4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling pagerank-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: cannot borrow `score` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/lib.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |       let dst_current_score = score.get(dst).unwrap_or(&0f64);
[INFO] [stderr]    |                               ----- immutable borrow occurs here
[INFO] [stderr] 32 |       let src_current_score = current_score_vector.get(src).unwrap_or(&0f64);
[INFO] [stderr] 33 |       &score.insert(dst.to_string(), *dst_current_score + *src_current_score * *value);
[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 0.73s
[INFO] running `"docker" "inspect" "d69e4a9de3f60f47e28e43cfc19f03569ec57942462cec63eee19556993a04b4"`
[INFO] running `"docker" "rm" "-f" "d69e4a9de3f60f47e28e43cfc19f03569ec57942462cec63eee19556993a04b4"`
[INFO] [stdout] d69e4a9de3f60f47e28e43cfc19f03569ec57942462cec63eee19556993a04b4
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] afd449e60bb3a1ac125e3dd472422f01e3ff31ab57faabdebb0fdae875d1d90e
[INFO] running `"docker" "start" "-a" "afd449e60bb3a1ac125e3dd472422f01e3ff31ab57faabdebb0fdae875d1d90e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling pagerank-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: cannot borrow `score` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/lib.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |       let dst_current_score = score.get(dst).unwrap_or(&0f64);
[INFO] [stderr]    |                               ----- immutable borrow occurs here
[INFO] [stderr] 32 |       let src_current_score = current_score_vector.get(src).unwrap_or(&0f64);
[INFO] [stderr] 33 |       &score.insert(dst.to_string(), *dst_current_score + *src_current_score * *value);
[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] warning: cannot borrow `score` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/lib.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |       let dst_current_score = score.get(dst).unwrap_or(&0f64);
[INFO] [stderr]    |                               ----- immutable borrow occurs here
[INFO] [stderr] 32 |       let src_current_score = current_score_vector.get(src).unwrap_or(&0f64);
[INFO] [stderr] 33 |       &score.insert(dst.to_string(), *dst_current_score + *src_current_score * *value);
[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 1.10s
[INFO] running `"docker" "inspect" "afd449e60bb3a1ac125e3dd472422f01e3ff31ab57faabdebb0fdae875d1d90e"`
[INFO] running `"docker" "rm" "-f" "afd449e60bb3a1ac125e3dd472422f01e3ff31ab57faabdebb0fdae875d1d90e"`
[INFO] [stdout] afd449e60bb3a1ac125e3dd472422f01e3ff31ab57faabdebb0fdae875d1d90e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a823b948bdbba8dc64a394134e5bf0b18f7cb67f5dd7605edea03e76d68c5174
[INFO] running `"docker" "start" "-a" "a823b948bdbba8dc64a394134e5bf0b18f7cb67f5dd7605edea03e76d68c5174"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: cannot borrow `score` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/lib.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |       let dst_current_score = score.get(dst).unwrap_or(&0f64);
[INFO] [stderr]    |                               ----- immutable borrow occurs here
[INFO] [stderr] 32 |       let src_current_score = current_score_vector.get(src).unwrap_or(&0f64);
[INFO] [stderr] 33 |       &score.insert(dst.to_string(), *dst_current_score + *src_current_score * *value);
[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] warning: cannot borrow `score` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/lib.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |       let dst_current_score = score.get(dst).unwrap_or(&0f64);
[INFO] [stderr]    |                               ----- immutable borrow occurs here
[INFO] [stderr] 32 |       let src_current_score = current_score_vector.get(src).unwrap_or(&0f64);
[INFO] [stderr] 33 |       &score.insert(dst.to_string(), *dst_current_score + *src_current_score * *value);
[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 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/pagerank_rust-252519ffaf5ba67a
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_pagerank ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pagerank-rust
[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" "a823b948bdbba8dc64a394134e5bf0b18f7cb67f5dd7605edea03e76d68c5174"`
[INFO] running `"docker" "rm" "-f" "a823b948bdbba8dc64a394134e5bf0b18f7cb67f5dd7605edea03e76d68c5174"`
[INFO] [stdout] a823b948bdbba8dc64a394134e5bf0b18f7cb67f5dd7605edea03e76d68c5174