[INFO] cloning repository https://github.com/layonthehorn/continued_testing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/layonthehorn/continued_testing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flayonthehorn%2Fcontinued_testing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flayonthehorn%2Fcontinued_testing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e655768284675af55f814d774fb93454461b7965
[INFO] checking layonthehorn/continued_testing against master#c756124775121dea0e640652c5ee3c89e3dd0eb4 for pr-154971-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flayonthehorn%2Fcontinued_testing" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/layonthehorn/continued_testing
[INFO] finished tweaking git repo https://github.com/layonthehorn/continued_testing
[INFO] tweaked toml for git repo https://github.com/layonthehorn/continued_testing written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/layonthehorn/continued_testing on toolchain c756124775121dea0e640652c5ee3c89e3dd0eb4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/layonthehorn/continued_testing 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" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.32
[INFO] [stderr]   Downloaded text_io v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09404cde255022e8b801f638206b67bc984bc8650a9f012e63c0928e900b1b08
[INFO] running `Command { std: "docker" "start" "-a" "09404cde255022e8b801f638206b67bc984bc8650a9f012e63c0928e900b1b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09404cde255022e8b801f638206b67bc984bc8650a9f012e63c0928e900b1b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09404cde255022e8b801f638206b67bc984bc8650a9f012e63c0928e900b1b08", kill_on_drop: false }`
[INFO] [stdout] 09404cde255022e8b801f638206b67bc984bc8650a9f012e63c0928e900b1b08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7f46690bccb25dc3710d614269f386e86ca50b36bc2b315e56b5aedbf941932
[INFO] running `Command { std: "docker" "start" "-a" "e7f46690bccb25dc3710d614269f386e86ca50b36bc2b315e56b5aedbf941932", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]     Checking continued_testing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/errors.rs:3:39
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn propagating_errors() -> Result<(i32)> {
[INFO] [stdout]   |                                       ^   ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 3 - pub fn propagating_errors() -> Result<(i32)> {
[INFO] [stdout] 3 + pub fn propagating_errors() -> Result<i32 > {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::min`
[INFO] [stdout]  --> src/vectors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::min;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/vectors.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut number = (low - 1);
[INFO] [stdout]    |                      ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -     let mut number = (low - 1);
[INFO] [stdout] 61 +     let mut number = low - 1 ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/errors.rs:3:39
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn propagating_errors() -> Result<(i32)> {
[INFO] [stdout]   |                                       ^   ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 3 - pub fn propagating_errors() -> Result<(i32)> {
[INFO] [stdout] 3 + pub fn propagating_errors() -> Result<i32 > {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::min`
[INFO] [stdout]  --> src/vectors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::min;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/vectors.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut number = (low - 1);
[INFO] [stdout]    |                      ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -     let mut number = (low - 1);
[INFO] [stdout] 61 +     let mut number = low - 1 ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/vectors.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut min_value = index;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/vectors.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn partition(mut vector: &mut Vec<i32>, low: i32, high: i32) -> i32{
[INFO] [stdout]    |              ----^^^^^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/vectors.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut min_value = index;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dictionary` is never constructed
[INFO] [stdout]  --> src/hash_map.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Dictionary {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `new`, `add_key`, `delete_key`, and `get_value` are never used
[INFO] [stdout]   --> src/hash_map.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl Dictionary {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout]  8 |     pub fn new(&self) -> Dictionary {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn add_key(&mut self, key: &str, number: i32) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn delete_key(&mut self, key: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn get_value(&self, value: &str) -> Option<&i32> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse_dismantle_vec` is never used
[INFO] [stdout]  --> src/vectors.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn reverse_dismantle_vec(mut vector: Vec<i32>) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `forward_dismantle_vec` is never used
[INFO] [stdout]   --> src/vectors.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn forward_dismantle_vec(mut vector: Vec<i32>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `selection_sort` is never used
[INFO] [stdout]   --> src/vectors.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn selection_sort(mut vector: Vec<i32>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]   --> src/vectors.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn bubble_sort(mut vector: Vec<i32>) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/vectors.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn partition(mut vector: &mut Vec<i32>, low: i32, high: i32) -> i32{
[INFO] [stdout]    |              ----^^^^^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dictionary` is never constructed
[INFO] [stdout]  --> src/hash_map.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Dictionary {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `new`, `add_key`, `delete_key`, and `get_value` are never used
[INFO] [stdout]   --> src/hash_map.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl Dictionary {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout]  8 |     pub fn new(&self) -> Dictionary {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn add_key(&mut self, key: &str, number: i32) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn delete_key(&mut self, key: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn get_value(&self, value: &str) -> Option<&i32> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse_dismantle_vec` is never used
[INFO] [stdout]  --> src/vectors.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn reverse_dismantle_vec(mut vector: Vec<i32>) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `forward_dismantle_vec` is never used
[INFO] [stdout]   --> src/vectors.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn forward_dismantle_vec(mut vector: Vec<i32>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `selection_sort` is never used
[INFO] [stdout]   --> src/vectors.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn selection_sort(mut vector: Vec<i32>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]   --> src/vectors.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn bubble_sort(mut vector: Vec<i32>) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "e7f46690bccb25dc3710d614269f386e86ca50b36bc2b315e56b5aedbf941932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f46690bccb25dc3710d614269f386e86ca50b36bc2b315e56b5aedbf941932", kill_on_drop: false }`
[INFO] [stdout] e7f46690bccb25dc3710d614269f386e86ca50b36bc2b315e56b5aedbf941932
