Dec 18 08:11:03.541 INFO checking CheukNgai/PageRank_Timely against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:11:03.541 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/CheukNgai/PageRank_Timely:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:11:05.275 INFO [stdout] 7abc5d756803467df2fcc7a559f6ef2971874bd701a7363d5b8e19fdae301efe
Dec 18 08:11:05.277 INFO running `"docker" "start" "-a" "7abc5d756803467df2fcc7a559f6ef2971874bd701a7363d5b8e19fdae301efe"`
Dec 18 08:11:05.800 INFO [stderr]     Checking file v1.1.2
Dec 18 08:11:05.816 INFO [stderr]     Checking timely_sort v0.1.6
Dec 18 08:11:05.816 INFO [stderr]     Checking timely_communication v0.6.0
Dec 18 08:11:06.968 INFO [stderr]     Checking timely v0.6.0
Dec 18 08:11:11.849 INFO [stderr]     Checking pagerank v0.1.0 (/opt/crater/workdir)
Dec 18 08:11:12.240 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 18 08:11:12.240 INFO [stderr]    --> src/main.rs:197:13
Dec 18 08:11:12.240 INFO [stderr]     |
Dec 18 08:11:12.240 INFO [stderr] 197 |             if (index == 0) {
Dec 18 08:11:12.240 INFO [stderr]     |                ^^^^^^^^^^^^ help: remove these parentheses
Dec 18 08:11:12.240 INFO [stderr]     |
Dec 18 08:11:12.240 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 18 08:11:12.240 INFO [stderr] 
Dec 18 08:11:12.260 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 18 08:11:12.260 INFO [stderr]    --> src/main.rs:197:13
Dec 18 08:11:12.260 INFO [stderr]     |
Dec 18 08:11:12.260 INFO [stderr] 197 |             if (index == 0) {
Dec 18 08:11:12.260 INFO [stderr]     |                ^^^^^^^^^^^^ help: remove these parentheses
Dec 18 08:11:12.260 INFO [stderr]     |
Dec 18 08:11:12.260 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 18 08:11:12.260 INFO [stderr] 
Dec 18 08:11:12.392 INFO [stderr] warning: unused variable: `diff`
Dec 18 08:11:12.392 INFO [stderr]    --> src/main.rs:115:43
Dec 18 08:11:12.392 INFO [stderr]     |
Dec 18 08:11:12.392 INFO [stderr] 115 |                                 for (dst, diff) in rank_changes.iter_mut() {
Dec 18 08:11:12.392 INFO [stderr]     |                                           ^^^^ help: consider using `_diff` instead
Dec 18 08:11:12.392 INFO [stderr]     |
Dec 18 08:11:12.392 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 08:11:12.392 INFO [stderr] 
Dec 18 08:11:12.424 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:12.424 INFO [stderr]    --> src/main.rs:163:13
Dec 18 08:11:12.424 INFO [stderr]     |
Dec 18 08:11:12.424 INFO [stderr] 163 |         let mut round = 0;
Dec 18 08:11:12.424 INFO [stderr]     |             ----^^^^^
Dec 18 08:11:12.424 INFO [stderr]     |             |
Dec 18 08:11:12.424 INFO [stderr]     |             help: remove this `mut`
Dec 18 08:11:12.424 INFO [stderr]     |
Dec 18 08:11:12.424 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 08:11:12.424 INFO [stderr] 
Dec 18 08:11:12.424 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:12.424 INFO [stderr]    --> src/main.rs:163:13
Dec 18 08:11:12.424 INFO [stderr]     |
Dec 18 08:11:12.424 INFO [stderr] 163 |         let mut round = 0;
Dec 18 08:11:12.424 INFO [stderr]     |             ----^^^^^
Dec 18 08:11:12.424 INFO [stderr]     |             |
Dec 18 08:11:12.424 INFO [stderr]     |             help: remove this `mut`
Dec 18 08:11:12.424 INFO [stderr] 
Dec 18 08:11:12.424 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:12.424 INFO [stderr]    --> src/main.rs:187:6
Dec 18 08:11:12.424 INFO [stderr]     |
Dec 18 08:11:12.425 INFO [stderr] 187 |     let mut file = BufReader::new(&f);
Dec 18 08:11:12.425 INFO [stderr]     |         ----^^^^
Dec 18 08:11:12.425 INFO [stderr]     |         |
Dec 18 08:11:12.425 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:11:12.425 INFO [stderr] 
Dec 18 08:11:12.425 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:12.425 INFO [stderr]    --> src/main.rs:209:9
Dec 18 08:11:12.425 INFO [stderr]     |
Dec 18 08:11:12.425 INFO [stderr] 209 |     let mut node_number = node_list.len();
Dec 18 08:11:12.425 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 18 08:11:12.425 INFO [stderr]     |         |
Dec 18 08:11:12.425 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:11:12.425 INFO [stderr] 
Dec 18 08:11:12.430 INFO [stderr] warning: variable `default_PR` should have a snake case name such as `default_pr`
Dec 18 08:11:12.430 INFO [stderr]   --> src/main.rs:24:13
Dec 18 08:11:12.430 INFO [stderr]    |
Dec 18 08:11:12.430 INFO [stderr] 24 |         let default_PR:f32 = 1.0 / node_number as f32;
Dec 18 08:11:12.430 INFO [stderr]    |             ^^^^^^^^^^
Dec 18 08:11:12.430 INFO [stderr]    |
Dec 18 08:11:12.430 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 18 08:11:12.430 INFO [stderr] 
Dec 18 08:11:12.514 INFO [stderr] warning: unused variable: `diff`
Dec 18 08:11:12.514 INFO [stderr]    --> src/main.rs:115:43
Dec 18 08:11:12.514 INFO [stderr]     |
Dec 18 08:11:12.514 INFO [stderr] 115 |                                 for (dst, diff) in rank_changes.iter_mut() {
Dec 18 08:11:12.514 INFO [stderr]     |                                           ^^^^ help: consider using `_diff` instead
Dec 18 08:11:12.514 INFO [stderr]     |
Dec 18 08:11:12.514 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 08:11:12.514 INFO [stderr] 
Dec 18 08:11:12.550 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:12.550 INFO [stderr]    --> src/main.rs:163:13
Dec 18 08:11:12.550 INFO [stderr]     |
Dec 18 08:11:12.550 INFO [stderr] 163 |         let mut round = 0;
Dec 18 08:11:12.550 INFO [stderr]     |             ----^^^^^
Dec 18 08:11:12.550 INFO [stderr]     |             |
Dec 18 08:11:12.550 INFO [stderr]     |             help: remove this `mut`
Dec 18 08:11:12.550 INFO [stderr]     |
Dec 18 08:11:12.550 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 08:11:12.550 INFO [stderr] 
Dec 18 08:11:12.550 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:12.550 INFO [stderr]    --> src/main.rs:163:13
Dec 18 08:11:12.550 INFO [stderr]     |
Dec 18 08:11:12.550 INFO [stderr] 163 |         let mut round = 0;
Dec 18 08:11:12.550 INFO [stderr]     |             ----^^^^^
Dec 18 08:11:12.550 INFO [stderr]     |             |
Dec 18 08:11:12.550 INFO [stderr]     |             help: remove this `mut`
Dec 18 08:11:12.550 INFO [stderr] 
Dec 18 08:11:12.556 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:12.556 INFO [stderr]    --> src/main.rs:187:6
Dec 18 08:11:12.556 INFO [stderr]     |
Dec 18 08:11:12.556 INFO [stderr] 187 |     let mut file = BufReader::new(&f);
Dec 18 08:11:12.556 INFO [stderr]     |         ----^^^^
Dec 18 08:11:12.556 INFO [stderr]     |         |
Dec 18 08:11:12.556 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:11:12.556 INFO [stderr] 
Dec 18 08:11:12.556 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:12.556 INFO [stderr]    --> src/main.rs:209:9
Dec 18 08:11:12.556 INFO [stderr]     |
Dec 18 08:11:12.556 INFO [stderr] 209 |     let mut node_number = node_list.len();
Dec 18 08:11:12.556 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 18 08:11:12.556 INFO [stderr]     |         |
Dec 18 08:11:12.556 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:11:12.557 INFO [stderr] 
Dec 18 08:11:12.557 INFO [stderr] warning: variable `default_PR` should have a snake case name such as `default_pr`
Dec 18 08:11:12.558 INFO [stderr]   --> src/main.rs:24:13
Dec 18 08:11:12.558 INFO [stderr]    |
Dec 18 08:11:12.558 INFO [stderr] 24 |         let default_PR:f32 = 1.0 / node_number as f32;
Dec 18 08:11:12.558 INFO [stderr]    |             ^^^^^^^^^^
Dec 18 08:11:12.558 INFO [stderr]    |
Dec 18 08:11:12.558 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 18 08:11:12.558 INFO [stderr] 
Dec 18 08:11:12.607 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.86s
Dec 18 08:11:13.703 INFO running `"docker" "inspect" "7abc5d756803467df2fcc7a559f6ef2971874bd701a7363d5b8e19fdae301efe"`
Dec 18 08:11:14.016 INFO running `"docker" "rm" "-f" "7abc5d756803467df2fcc7a559f6ef2971874bd701a7363d5b8e19fdae301efe"`
Dec 18 08:11:14.332 INFO [stdout] 7abc5d756803467df2fcc7a559f6ef2971874bd701a7363d5b8e19fdae301efe