[INFO] updating cached repository https://github.com/manesho/rustyising
[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] b037297b199d2faa153d9e057ea65b493bd94d78
[INFO] checking manesho/rustyising against try#ba14a92a10441c4b839ce71e6ef5f7a48bbff18f for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanesho%2Frustyising" "/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/manesho/rustyising on toolchain ba14a92a10441c4b839ce71e6ef5f7a48bbff18f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/manesho/rustyising
[INFO] removed path dependency sdl from git repo https://github.com/manesho/rustyising
[INFO] finished tweaking git repo https://github.com/manesho/rustyising
[INFO] tweaked toml for git repo https://github.com/manesho/rustyising written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/manesho/rustyising already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (sdl) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (sdl) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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=forbid" "-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" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a38323b1282ce700adc89cb5a7b133816cab43492d4d23f0209cb05876879b1c
[INFO] running `"docker" "start" "-a" "a38323b1282ce700adc89cb5a7b133816cab43492d4d23f0209cb05876879b1c"`
[INFO] [stderr] warning: dependency (sdl) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking sdl v0.3.6
[INFO] [stderr]     Checking rustyising v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `geometry`
[INFO] [stderr]  --> src/algorithms.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use geometry;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/algorithms.rs:38:16
[INFO] [stderr]    |
[INFO] [stderr] 38 |               if ((!self.isdiscovered[nb]) &&
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 39 | |                      m.spins[nb] == m.spins[ri]){
[INFO] [stderr]    | |________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 38 |             if (!self.isdiscovered[nb]) &&
[INFO] [stderr] 39 |                      m.spins[nb] == m.spins[ri] {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `geometry`
[INFO] [stderr]  --> src/algorithms.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use geometry;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/algorithms.rs:38:16
[INFO] [stderr]    |
[INFO] [stderr] 38 |               if ((!self.isdiscovered[nb]) &&
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 39 | |                      m.spins[nb] == m.spins[ri]){
[INFO] [stderr]    | |________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 38 |             if (!self.isdiscovered[nb]) &&
[INFO] [stderr] 39 |                      m.spins[nb] == m.spins[ri] {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 |    for i in 0..200{
[INFO] [stderr]    |        ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         for i in 0..5{
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:89:29
[INFO] [stderr]    |
[INFO] [stderr] 89 |                         for i in 0..n{
[INFO] [stderr]    |                             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |     for i in 0..1000{
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:117:13
[INFO] [stderr]     |
[INFO] [stderr] 117 |         for i in 0..20{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:34:8
[INFO] [stderr]    |
[INFO] [stderr] 34 |    let mut lat = geometry::Lattice::new(&sizes);
[INFO] [stderr]    |        ----^^^
[INFO] [stderr]    |        |
[INFO] [stderr]    |        help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |     let mut lat = geometry::Lattice::new(&sizes);
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/geometry.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let mut numsites:i32 =  sizes.iter().product();
[INFO] [stderr]    |             ----^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/geometry.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |             let mut cx = Lattice::index2coords(i,&sizes);
[INFO] [stderr]    |                 ----^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/models.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 |        let mut spins = vec![1; lattice.numsites as usize];
[INFO] [stderr]    |            ----^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/algorithms.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let mut isdiscovered = vec![false; m.lattice.numsites as usize];
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `asci_print`
[INFO] [stderr]   --> src/models.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn asci_print(& mut self){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main2`
[INFO] [stderr]    --> src/main.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn main2() {
[INFO] [stderr]     | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/models.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |             stdout().flush();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 |    for i in 0..200{
[INFO] [stderr]    |        ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         for i in 0..5{
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:89:29
[INFO] [stderr]    |
[INFO] [stderr] 89 |                         for i in 0..n{
[INFO] [stderr]    |                             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |     for i in 0..1000{
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:117:13
[INFO] [stderr]     |
[INFO] [stderr] 117 |         for i in 0..20{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:34:8
[INFO] [stderr]    |
[INFO] [stderr] 34 |    let mut lat = geometry::Lattice::new(&sizes);
[INFO] [stderr]    |        ----^^^
[INFO] [stderr]    |        |
[INFO] [stderr]    |        help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |     let mut lat = geometry::Lattice::new(&sizes);
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/geometry.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let mut numsites:i32 =  sizes.iter().product();
[INFO] [stderr]    |             ----^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/geometry.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |             let mut cx = Lattice::index2coords(i,&sizes);
[INFO] [stderr]    |                 ----^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/models.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 |        let mut spins = vec![1; lattice.numsites as usize];
[INFO] [stderr]    |            ----^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/algorithms.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let mut isdiscovered = vec![false; m.lattice.numsites as usize];
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `asci_print`
[INFO] [stderr]   --> src/models.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn asci_print(& mut self){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main2`
[INFO] [stderr]    --> src/main.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn main2() {
[INFO] [stderr]     | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/models.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |             stdout().flush();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.74s
[INFO] running `"docker" "inspect" "a38323b1282ce700adc89cb5a7b133816cab43492d4d23f0209cb05876879b1c"`
[INFO] running `"docker" "rm" "-f" "a38323b1282ce700adc89cb5a7b133816cab43492d4d23f0209cb05876879b1c"`
[INFO] [stdout] a38323b1282ce700adc89cb5a7b133816cab43492d4d23f0209cb05876879b1c