[INFO] cloning repository https://github.com/warnp/demo_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/warnp/demo_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwarnp%2Fdemo_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwarnp%2Fdemo_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6fd631ff77ac2545b089af87685519032e2c3f78
[INFO] testing warnp/demo_rust against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwarnp%2Fdemo_rust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/warnp/demo_rust on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/warnp/demo_rust
[INFO] finished tweaking git repo https://github.com/warnp/demo_rust
[INFO] tweaked toml for git repo https://github.com/warnp/demo_rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/warnp/demo_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 47ae62ce679d95c7d0f6173125c0244adcb4d962ca38c53d60cca7520dad5985
[INFO] running `Command { std: "docker" "start" "-a" "47ae62ce679d95c7d0f6173125c0244adcb4d962ca38c53d60cca7520dad5985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47ae62ce679d95c7d0f6173125c0244adcb4d962ca38c53d60cca7520dad5985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47ae62ce679d95c7d0f6173125c0244adcb4d962ca38c53d60cca7520dad5985", kill_on_drop: false }`
[INFO] [stdout] 47ae62ce679d95c7d0f6173125c0244adcb4d962ca38c53d60cca7520dad5985
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c4a154ee02ef48eaceb777c44166030bad3e3fdea874bdfe83913944ea394b97
[INFO] running `Command { std: "docker" "start" "-a" "c4a154ee02ef48eaceb777c44166030bad3e3fdea874bdfe83913944ea394b97", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling futures-io v0.3.19
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling futures-executor v0.3.19
[INFO] [stderr]    Compiling futures v0.3.19
[INFO] [stderr]    Compiling demo_rust_easy_mode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow`
[INFO] [stdout]  --> src/main.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `format`, `write`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Display, format, Formatter, write};
[INFO] [stdout]   |                         ^^^^^^             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::executor::block_on`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::join`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::join;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spawn`
[INFO] [stdout]    --> src/main.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let spawn = tokio::spawn(async move {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_spawn`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bad_guy_attack_result`
[INFO] [stdout]    --> src/main.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let bad_guy_attack_result = bad_guy.lock().unwrap().attack(our_hero.clone());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bad_guy_attack_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/main.rs:139:17
[INFO] [stdout]     |
[INFO] [stdout] 139 |             Err(r) => {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `damage_amount`
[INFO] [stdout]   --> src/main.rs:42:30
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn get_damage(&mut self, damage_amount: i32) -> Result<i32, LifeError> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_damage_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut bad_guy = BadGuy {
[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: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.86s
[INFO] running `Command { std: "docker" "inspect" "c4a154ee02ef48eaceb777c44166030bad3e3fdea874bdfe83913944ea394b97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4a154ee02ef48eaceb777c44166030bad3e3fdea874bdfe83913944ea394b97", kill_on_drop: false }`
[INFO] [stdout] c4a154ee02ef48eaceb777c44166030bad3e3fdea874bdfe83913944ea394b97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6dfc0cf5a6faa4b523aea118d58ca3410be55f7032a44df28c6c7daa8667fb6
[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" "e6dfc0cf5a6faa4b523aea118d58ca3410be55f7032a44df28c6c7daa8667fb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling demo_rust_easy_mode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow`
[INFO] [stdout]  --> src/main.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `format`, `write`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Display, format, Formatter, write};
[INFO] [stdout]   |                         ^^^^^^             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::executor::block_on`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::join`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::join;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spawn`
[INFO] [stdout]    --> src/main.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let spawn = tokio::spawn(async move {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_spawn`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bad_guy_attack_result`
[INFO] [stdout]    --> src/main.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let bad_guy_attack_result = bad_guy.lock().unwrap().attack(our_hero.clone());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bad_guy_attack_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/main.rs:139:17
[INFO] [stdout]     |
[INFO] [stdout] 139 |             Err(r) => {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `damage_amount`
[INFO] [stdout]   --> src/main.rs:42:30
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn get_damage(&mut self, damage_amount: i32) -> Result<i32, LifeError> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_damage_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut bad_guy = BadGuy {
[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: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "e6dfc0cf5a6faa4b523aea118d58ca3410be55f7032a44df28c6c7daa8667fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6dfc0cf5a6faa4b523aea118d58ca3410be55f7032a44df28c6c7daa8667fb6", kill_on_drop: false }`
[INFO] [stdout] e6dfc0cf5a6faa4b523aea118d58ca3410be55f7032a44df28c6c7daa8667fb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e2c2a1f3038ddd9561d6c13b34e112124cf63488cd5c6866178f6fb27f8f6c8d
[INFO] running `Command { std: "docker" "start" "-a" "e2c2a1f3038ddd9561d6c13b34e112124cf63488cd5c6866178f6fb27f8f6c8d", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `BorrowMut`, `Borrow`
[INFO] [stderr]  --> src/main.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stderr]   |                   ^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `format`, `write`
[INFO] [stderr]  --> src/main.rs:3:25
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fmt::{Display, format, Formatter, write};
[INFO] [stderr]   |                         ^^^^^^             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::executor::block_on`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use futures::executor::block_on;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::join`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::join;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `spawn`
[INFO] [stderr]    --> src/main.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |         let spawn = tokio::spawn(async move {
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_spawn`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bad_guy_attack_result`
[INFO] [stderr]    --> src/main.rs:135:13
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let bad_guy_attack_result = bad_guy.lock().unwrap().attack(our_hero.clone());
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bad_guy_attack_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/main.rs:139:17
[INFO] [stderr]     |
[INFO] [stderr] 139 |             Err(r) => {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `damage_amount`
[INFO] [stderr]   --> src/main.rs:42:30
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn get_damage(&mut self, damage_amount: i32) -> Result<i32, LifeError> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_damage_amount`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:104:9
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let mut bad_guy = BadGuy {
[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: `demo_rust_easy_mode` (bin "demo_rust_easy_mode" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/demo_rust_easy_mode-ad18879364556921)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e2c2a1f3038ddd9561d6c13b34e112124cf63488cd5c6866178f6fb27f8f6c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2c2a1f3038ddd9561d6c13b34e112124cf63488cd5c6866178f6fb27f8f6c8d", kill_on_drop: false }`
[INFO] [stdout] e2c2a1f3038ddd9561d6c13b34e112124cf63488cd5c6866178f6fb27f8f6c8d