[INFO] cloning repository https://github.com/SHoltzen/rs-perm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SHoltzen/rs-perm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSHoltzen%2Frs-perm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSHoltzen%2Frs-perm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 70a9c857f2bc023e2bdae27c9cfafcd2d239c21f
[INFO] checking SHoltzen/rs-perm against e3607d549209cc9fdfe7e907123b4185210e2c2b for pr-158915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSHoltzen%2Frs-perm" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SHoltzen/rs-perm
[INFO] finished tweaking git repo https://github.com/SHoltzen/rs-perm
[INFO] tweaked toml for git repo https://github.com/SHoltzen/rs-perm written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SHoltzen/rs-perm on toolchain e3607d549209cc9fdfe7e907123b4185210e2c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SHoltzen/rs-perm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] aee2bc004e56248feac8b455a1b47756de071eed1b5f4f276d4017103a5fefc7
[INFO] running `Command { std: "docker" "start" "aee2bc004e56248feac8b455a1b47756de071eed1b5f4f276d4017103a5fefc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aee2bc004e56248feac8b455a1b47756de071eed1b5f4f276d4017103a5fefc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aee2bc004e56248feac8b455a1b47756de071eed1b5f4f276d4017103a5fefc7" "/opt/rustwide/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aee2bc004e56248feac8b455a1b47756de071eed1b5f4f276d4017103a5fefc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aee2bc004e56248feac8b455a1b47756de071eed1b5f4f276d4017103a5fefc7" "/opt/rustwide/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking rs-perm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `perm::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use perm::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `perm::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use perm::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/group.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct GroupRNG {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     id: Perm,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `g` and `base` are never read
[INFO] [stdout]   --> src/group.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct StabView<'a> {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 71 |     g: Vec<&'a Perm>,
[INFO] [stdout]    |     ^
[INFO] [stdout] 72 |     /// the set of stabilized points
[INFO] [stdout] 73 |     base: Vec<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StabView` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_gen` is never used
[INFO] [stdout]    --> src/group.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout]  80 | impl<'a> StabView<'a> {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn add_gen(&mut self, g: &'a Perm) -> () {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `chooseR` should have a snake case name
[INFO] [stdout]   --> src/group.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let chooseR : bool = self.rng.gen_bool(0.5);
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `choose_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/group.rs:200:23
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn gen_stab_chain(&self, base: &Vec<usize>) -> Vec<StabView> {
[INFO] [stdout]     |                       ^^^^^                            ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn gen_stab_chain(&self, base: &Vec<usize>) -> Vec<StabView<'_>> {
[INFO] [stdout]     |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/group.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct GroupRNG {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     id: Perm,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `g` and `base` are never read
[INFO] [stdout]   --> src/group.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct StabView<'a> {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 71 |     g: Vec<&'a Perm>,
[INFO] [stdout]    |     ^
[INFO] [stdout] 72 |     /// the set of stabilized points
[INFO] [stdout] 73 |     base: Vec<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StabView` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_gen` is never used
[INFO] [stdout]    --> src/group.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout]  80 | impl<'a> StabView<'a> {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn add_gen(&mut self, g: &'a Perm) -> () {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `chooseR` should have a snake case name
[INFO] [stdout]   --> src/group.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let chooseR : bool = self.rng.gen_bool(0.5);
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `choose_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/group.rs:200:23
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn gen_stab_chain(&self, base: &Vec<usize>) -> Vec<StabView> {
[INFO] [stdout]     |                       ^^^^^                            ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn gen_stab_chain(&self, base: &Vec<usize>) -> Vec<StabView<'_>> {
[INFO] [stdout]     |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "aee2bc004e56248feac8b455a1b47756de071eed1b5f4f276d4017103a5fefc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee2bc004e56248feac8b455a1b47756de071eed1b5f4f276d4017103a5fefc7", kill_on_drop: false }`
[INFO] [stdout] aee2bc004e56248feac8b455a1b47756de071eed1b5f4f276d4017103a5fefc7
