[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 beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukimura45z%2Fpagerank-rust" "/workspace/builds/worker-3/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yukimura45z/pagerank-rust on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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-3/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" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-06-03" "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] 4b0c93f5e1eb9065b7bebe155029a82ac65859eb6c5be566544bc9ba6bf760ab [INFO] running `"docker" "start" "-a" "4b0c93f5e1eb9065b7bebe155029a82ac65859eb6c5be566544bc9ba6bf760ab"` [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 [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `"docker" "inspect" "4b0c93f5e1eb9065b7bebe155029a82ac65859eb6c5be566544bc9ba6bf760ab"` [INFO] running `"docker" "rm" "-f" "4b0c93f5e1eb9065b7bebe155029a82ac65859eb6c5be566544bc9ba6bf760ab"` [INFO] [stdout] 4b0c93f5e1eb9065b7bebe155029a82ac65859eb6c5be566544bc9ba6bf760ab [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-06-03" "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] 018a9b3699961c04d190830d75bbefd24ef2ae8b69bdb168de2310746627453b [INFO] running `"docker" "start" "-a" "018a9b3699961c04d190830d75bbefd24ef2ae8b69bdb168de2310746627453b"` [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 [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 [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.15s [INFO] running `"docker" "inspect" "018a9b3699961c04d190830d75bbefd24ef2ae8b69bdb168de2310746627453b"` [INFO] running `"docker" "rm" "-f" "018a9b3699961c04d190830d75bbefd24ef2ae8b69bdb168de2310746627453b"` [INFO] [stdout] 018a9b3699961c04d190830d75bbefd24ef2ae8b69bdb168de2310746627453b [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-06-03" "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] 5ef308445c3552c40ba3f6e5e6947d1a2974e16a106d58fcf69d07d925d7ba34 [INFO] running `"docker" "start" "-a" "5ef308445c3552c40ba3f6e5e6947d1a2974e16a106d58fcf69d07d925d7ba34"` [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 [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 [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/pagerank_rust-7202ec8e1eaa576f [INFO] [stderr] Doc-tests pagerank-rust [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] [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" "5ef308445c3552c40ba3f6e5e6947d1a2974e16a106d58fcf69d07d925d7ba34"` [INFO] running `"docker" "rm" "-f" "5ef308445c3552c40ba3f6e5e6947d1a2974e16a106d58fcf69d07d925d7ba34"` [INFO] [stdout] 5ef308445c3552c40ba3f6e5e6947d1a2974e16a106d58fcf69d07d925d7ba34