[INFO] cloning repository https://github.com/djthegr8/rst
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djthegr8/rst" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjthegr8%2Frst", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjthegr8%2Frst'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa1b69d0ea9597e25d4e2fab72dfcc80b98fcf29
[INFO] checking djthegr8/rst against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjthegr8%2Frst" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/djthegr8/rst
[INFO] finished tweaking git repo https://github.com/djthegr8/rst
[INFO] tweaked toml for git repo https://github.com/djthegr8/rst written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/djthegr8/rst on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/djthegr8/rst 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d4c516b6226d3e0993c031c26ee0b673d253d47ac557c1881cacb3b662ede1f
[INFO] running `Command { std: "docker" "start" "-a" "4d4c516b6226d3e0993c031c26ee0b673d253d47ac557c1881cacb3b662ede1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d4c516b6226d3e0993c031c26ee0b673d253d47ac557c1881cacb3b662ede1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d4c516b6226d3e0993c031c26ee0b673d253d47ac557c1881cacb3b662ede1f", kill_on_drop: false }`
[INFO] [stdout] 4d4c516b6226d3e0993c031c26ee0b673d253d47ac557c1881cacb3b662ede1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5f623edaf1b75b7f89337a94035f36ac9043b1d4cc2f0c347ab08f2bcfc10fd
[INFO] running `Command { std: "docker" "start" "-a" "c5f623edaf1b75b7f89337a94035f36ac9043b1d4cc2f0c347ab08f2bcfc10fd", kill_on_drop: false }`
[INFO] [stderr]     Checking mathVecRst v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/util.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FromIterator` and `Skip`
[INFO] [stdout]  --> src/util.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter::{FromIterator, Skip};
[INFO] [stdout]   |                 ^^^^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/util.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FromIterator` and `Skip`
[INFO] [stdout]  --> src/util.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter::{FromIterator, Skip};
[INFO] [stdout]   |                 ^^^^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_mean` is never used
[INFO] [stdout]   --> src/util.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn calc_mean(list: &Vec<i32>) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_median` is never used
[INFO] [stdout]   --> src/util.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn calc_median(list: &Vec<i32>) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_mode` is never used
[INFO] [stdout]   --> src/util.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn calc_mode(list: &Vec<i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_pig_latin` is never used
[INFO] [stdout]   --> src/util.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn to_pig_latin(english_: &String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_mean` is never used
[INFO] [stdout]   --> src/util.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn calc_mean(list: &Vec<i32>) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_median` is never used
[INFO] [stdout]   --> src/util.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn calc_median(list: &Vec<i32>) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_mode` is never used
[INFO] [stdout]   --> src/util.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn calc_mode(list: &Vec<i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_pig_latin` is never used
[INFO] [stdout]   --> src/util.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn to_pig_latin(english_: &String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         inp.to_lowercase();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let _ = inp.to_lowercase();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         inp.to_lowercase();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let _ = inp.to_lowercase();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "c5f623edaf1b75b7f89337a94035f36ac9043b1d4cc2f0c347ab08f2bcfc10fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5f623edaf1b75b7f89337a94035f36ac9043b1d4cc2f0c347ab08f2bcfc10fd", kill_on_drop: false }`
[INFO] [stdout] c5f623edaf1b75b7f89337a94035f36ac9043b1d4cc2f0c347ab08f2bcfc10fd