[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 try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flayonthehorn%2Fcontinued_testing" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/layonthehorn/continued_testing on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-3/source/Cargo.toml
[INFO] crate git repo https://github.com/layonthehorn/continued_testing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ecacf75e00283a0da10d49384bc1079caa544a09d9c2c8e5ade6411892dbfec
[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" "3ecacf75e00283a0da10d49384bc1079caa544a09d9c2c8e5ade6411892dbfec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ecacf75e00283a0da10d49384bc1079caa544a09d9c2c8e5ade6411892dbfec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ecacf75e00283a0da10d49384bc1079caa544a09d9c2c8e5ade6411892dbfec", kill_on_drop: false }`
[INFO] [stdout] 3ecacf75e00283a0da10d49384bc1079caa544a09d9c2c8e5ade6411892dbfec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8403c4581fc268366b13a93f9c8e0de2fe5ea9dc995e25c1f81a76299d32d884
[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" "8403c4581fc268366b13a93f9c8e0de2fe5ea9dc995e25c1f81a76299d32d884", kill_on_drop: false }`
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]     Checking anyhow v1.0.32
[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]   |                                       ^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[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)]` 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]    |                      ^^^^^^^^^ help: remove these parentheses
[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]   |                                       ^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[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)]` 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]    |                      ^^^^^^^^^ help: remove these parentheses
[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)]` 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: struct is never constructed: `Dictionary`
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/hash_map.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(&self) -> Dictionary {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_key`
[INFO] [stdout]   --> src/hash_map.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn add_key(&mut self, key: &str, number: i32) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_key`
[INFO] [stdout]   --> src/hash_map.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn delete_key(&mut self, key: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_value`
[INFO] [stdout]   --> src/hash_map.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn get_value(&self, value: &str) -> Option<&i32> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse_dismantle_vec`
[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 is never used: `forward_dismantle_vec`
[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 is never used: `selection_sort`
[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 is never used: `bubble_sort`
[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: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)]` 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: struct is never constructed: `Dictionary`
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/hash_map.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(&self) -> Dictionary {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_key`
[INFO] [stdout]   --> src/hash_map.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn add_key(&mut self, key: &str, number: i32) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_key`
[INFO] [stdout]   --> src/hash_map.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn delete_key(&mut self, key: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_value`
[INFO] [stdout]   --> src/hash_map.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn get_value(&self, value: &str) -> Option<&i32> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse_dismantle_vec`
[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 is never used: `forward_dismantle_vec`
[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 is never used: `selection_sort`
[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 is never used: `bubble_sort`
[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: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "8403c4581fc268366b13a93f9c8e0de2fe5ea9dc995e25c1f81a76299d32d884", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8403c4581fc268366b13a93f9c8e0de2fe5ea9dc995e25c1f81a76299d32d884", kill_on_drop: false }`
[INFO] [stdout] 8403c4581fc268366b13a93f9c8e0de2fe5ea9dc995e25c1f81a76299d32d884