[INFO] cloning repository https://github.com/neelayjunnarkar/Proj_Euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neelayjunnarkar/Proj_Euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneelayjunnarkar%2FProj_Euler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneelayjunnarkar%2FProj_Euler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fcfe938b1c1c1701e44573307a329796fa3186f
[INFO] checking neelayjunnarkar/Proj_Euler against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneelayjunnarkar%2FProj_Euler" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/neelayjunnarkar/Proj_Euler on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/neelayjunnarkar/Proj_Euler
[INFO] finished tweaking git repo https://github.com/neelayjunnarkar/Proj_Euler
[INFO] tweaked toml for git repo https://github.com/neelayjunnarkar/Proj_Euler written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/neelayjunnarkar/Proj_Euler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb38ea2214c9e419a4b47764d06ac32874264f4975616f3855b63221d83362f3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "eb38ea2214c9e419a4b47764d06ac32874264f4975616f3855b63221d83362f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb38ea2214c9e419a4b47764d06ac32874264f4975616f3855b63221d83362f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb38ea2214c9e419a4b47764d06ac32874264f4975616f3855b63221d83362f3", kill_on_drop: false }`
[INFO] [stdout] eb38ea2214c9e419a4b47764d06ac32874264f4975616f3855b63221d83362f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b16fa16c3ce5cdd6b82d483d2c18833a748a6236a66de1ffc225a9de91b5539
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4b16fa16c3ce5cdd6b82d483d2c18833a748a6236a66de1ffc225a9de91b5539", kill_on_drop: false }`
[INFO] [stderr]     Checking Proj_Euler v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::num::*`
[INFO] [stdout]  --> src/prob3.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::num::*;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: label name `'y_pos` shadows a label name that is already in scope
[INFO] [stdout]    --> src/prob11.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 90  |         'y_pos: for y in 0..(h-n_adjacents) {
[INFO] [stdout]     |         ------ first declared here
[INFO] [stdout] ...
[INFO] [stdout] 106 |         'y_pos: for y in 0..(h-n_adjacents) {
[INFO] [stdout]     |         ^^^^^^ lifetime 'y_pos already in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::*`
[INFO] [stdout]  --> src/prob3.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::num::*;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: label name `'y_pos` shadows a label name that is already in scope
[INFO] [stdout]    --> src/prob11.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 90  |         'y_pos: for y in 0..(h-n_adjacents) {
[INFO] [stdout]     |         ------ first declared here
[INFO] [stdout] ...
[INFO] [stdout] 106 |         'y_pos: for y in 0..(h-n_adjacents) {
[INFO] [stdout]     |         ^^^^^^ lifetime 'y_pos already in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `temp_max` is never read
[INFO] [stdout]   --> src/prob11.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut temp_max = 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `temp_max` is never read
[INFO] [stdout]   --> src/prob11.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     temp_max = 1;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `temp_max` is never read
[INFO] [stdout]   --> src/prob11.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     temp_max = 1;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `temp_max` is never read
[INFO] [stdout]    --> src/prob11.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     temp_max = 1;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `factorial`
[INFO] [stdout]   --> src/prob15.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn factorial(n: u64) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Proj_Euler` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `proj_euler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `temp_max` is never read
[INFO] [stdout]   --> src/prob11.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut temp_max = 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `temp_max` is never read
[INFO] [stdout]   --> src/prob11.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     temp_max = 1;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `temp_max` is never read
[INFO] [stdout]   --> src/prob11.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     temp_max = 1;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `temp_max` is never read
[INFO] [stdout]    --> src/prob11.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     temp_max = 1;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/prob7.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | /     (1..55_250).map(|x|x*2+1)
[INFO] [stdout] 7  | |         .filter(|&x| -> bool {
[INFO] [stdout] 8  | |                 for prime in &primes { 
[INFO] [stdout] 9  | |                     if x % *prime == 0 && x != *prime { return false }
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |             })
[INFO] [stdout] 15 | |         .collect::<Vec<u32>>();
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `factorial`
[INFO] [stdout]   --> src/prob15.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn factorial(n: u64) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Proj_Euler` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `proj_euler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/prob7.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | /     (1..55_250).map(|x|x*2+1)
[INFO] [stdout] 7  | |         .filter(|&x| -> bool {
[INFO] [stdout] 8  | |                 for prime in &primes { 
[INFO] [stdout] 9  | |                     if x % *prime == 0 && x != *prime { return false }
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |             })
[INFO] [stdout] 15 | |         .collect::<Vec<u32>>();
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use(run)]
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use(run)]
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Proj_Euler` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `proj_euler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Proj_Euler` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `proj_euler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "4b16fa16c3ce5cdd6b82d483d2c18833a748a6236a66de1ffc225a9de91b5539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b16fa16c3ce5cdd6b82d483d2c18833a748a6236a66de1ffc225a9de91b5539", kill_on_drop: false }`
[INFO] [stdout] 4b16fa16c3ce5cdd6b82d483d2c18833a748a6236a66de1ffc225a9de91b5539