[INFO] cloning repository https://github.com/HarrySeldonIsCool/discord-bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HarrySeldonIsCool/discord-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarrySeldonIsCool%2Fdiscord-bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarrySeldonIsCool%2Fdiscord-bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0fa59683692c8c8f8126bfb743aa49841e4447a
[INFO] testing HarrySeldonIsCool/discord-bot against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarrySeldonIsCool%2Fdiscord-bot" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HarrySeldonIsCool/discord-bot on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HarrySeldonIsCool/discord-bot
[INFO] finished tweaking git repo https://github.com/HarrySeldonIsCool/discord-bot
[INFO] tweaked toml for git repo https://github.com/HarrySeldonIsCool/discord-bot written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/HarrySeldonIsCool/discord-bot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scan_fmt v0.2.6
[INFO] [stderr]   Downloaded uwl v0.6.0
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.18
[INFO] [stderr]   Downloaded command_attr v0.3.6
[INFO] [stderr]   Downloaded serenity v0.10.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] 46d80363052efeed12f7aefbbbd708024d6a2a6ae6e4530a95f87d9ff31c2751
[INFO] running `Command { std: "docker" "start" "-a" "46d80363052efeed12f7aefbbbd708024d6a2a6ae6e4530a95f87d9ff31c2751", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46d80363052efeed12f7aefbbbd708024d6a2a6ae6e4530a95f87d9ff31c2751", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46d80363052efeed12f7aefbbbd708024d6a2a6ae6e4530a95f87d9ff31c2751", kill_on_drop: false }`
[INFO] [stdout] 46d80363052efeed12f7aefbbbd708024d6a2a6ae6e4530a95f87d9ff31c2751
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27b1709fdf3a02ef7e4f033cbb9971bfe479b13dcde83c015bab2c1f5ce54d51
[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" "27b1709fdf3a02ef7e4f033cbb9971bfe479b13dcde83c015bab2c1f5ce54d51", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling httpdate v1.0.0
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling serenity v0.10.7
[INFO] [stderr]    Compiling typemap_rev v0.1.5
[INFO] [stderr]    Compiling tokio v1.6.0
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling scan_fmt v0.2.6
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling sha-1 v0.9.6
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling sct v0.6.1
[INFO] [stderr]    Compiling rustls v0.19.1
[INFO] [stderr]    Compiling webpki-roots v0.20.0
[INFO] [stderr]    Compiling webpki-roots v0.21.1
[INFO] [stderr]    Compiling http-body v0.4.2
[INFO] [stderr]    Compiling tungstenite v0.11.1
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling command_attr v0.3.6
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stderr]    Compiling tokio-rustls v0.22.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling async-tungstenite v0.11.0
[INFO] [stderr]    Compiling h2 v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling tracing-subscriber v0.2.18
[INFO] [stderr]    Compiling hyper v0.14.7
[INFO] [stderr]    Compiling hyper-rustls v0.22.1
[INFO] [stderr]    Compiling reqwest v0.11.3
[INFO] [stderr]    Compiling e06_sample_bot_structure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/commands/math.rs:289:10
[INFO] [stdout]     |
[INFO] [stdout] 289 |     for (i, x) in input2.char_indices(){
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/commands/math.rs:372:10
[INFO] [stdout]     |
[INFO] [stdout] 372 |     for (i, x) in what.char_indices(){
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/commands/math.rs:402:9
[INFO] [stdout]     |
[INFO] [stdout] 402 |     for i in 1..((base as f32).log(to as f32).floor() as u32 + 2){
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 43s
[INFO] running `Command { std: "docker" "inspect" "27b1709fdf3a02ef7e4f033cbb9971bfe479b13dcde83c015bab2c1f5ce54d51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b1709fdf3a02ef7e4f033cbb9971bfe479b13dcde83c015bab2c1f5ce54d51", kill_on_drop: false }`
[INFO] [stdout] 27b1709fdf3a02ef7e4f033cbb9971bfe479b13dcde83c015bab2c1f5ce54d51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--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] 2f0a14f9f06be09a0df4beee79c7b0e346864acbe95f2ac695271edd6ee71b35
[INFO] running `Command { std: "docker" "start" "-a" "2f0a14f9f06be09a0df4beee79c7b0e346864acbe95f2ac695271edd6ee71b35", kill_on_drop: false }`
[INFO] [stderr]    Compiling e06_sample_bot_structure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/commands/math.rs:289:10
[INFO] [stdout]     |
[INFO] [stdout] 289 |     for (i, x) in input2.char_indices(){
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/commands/math.rs:372:10
[INFO] [stdout]     |
[INFO] [stdout] 372 |     for (i, x) in what.char_indices(){
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/commands/math.rs:402:9
[INFO] [stdout]     |
[INFO] [stdout] 402 |     for i in 1..((base as f32).log(to as f32).floor() as u32 + 2){
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.51s
[INFO] running `Command { std: "docker" "inspect" "2f0a14f9f06be09a0df4beee79c7b0e346864acbe95f2ac695271edd6ee71b35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f0a14f9f06be09a0df4beee79c7b0e346864acbe95f2ac695271edd6ee71b35", kill_on_drop: false }`
[INFO] [stdout] 2f0a14f9f06be09a0df4beee79c7b0e346864acbe95f2ac695271edd6ee71b35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b67bc475656f80832a301c93bba3d5d06108ddb85d37c3a9cbdefde375ba9fe0
[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" "b67bc475656f80832a301c93bba3d5d06108ddb85d37c3a9cbdefde375ba9fe0", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/commands/math.rs:289:10
[INFO] [stderr]     |
[INFO] [stderr] 289 |     for (i, x) in input2.char_indices(){
[INFO] [stderr]     |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/commands/math.rs:372:10
[INFO] [stderr]     |
[INFO] [stderr] 372 |     for (i, x) in what.char_indices(){
[INFO] [stderr]     |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/commands/math.rs:402:9
[INFO] [stderr]     |
[INFO] [stderr] 402 |     for i in 1..((base as f32).log(to as f32).floor() as u32 + 2){
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: `e06_sample_bot_structure` (bin "e06_sample_bot_structure" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/e06_sample_bot_structure-4f81a53f6a14a795)
[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" "b67bc475656f80832a301c93bba3d5d06108ddb85d37c3a9cbdefde375ba9fe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b67bc475656f80832a301c93bba3d5d06108ddb85d37c3a9cbdefde375ba9fe0", kill_on_drop: false }`
[INFO] [stdout] b67bc475656f80832a301c93bba3d5d06108ddb85d37c3a9cbdefde375ba9fe0