[INFO] cloning repository https://github.com/disDeal/vollter-integration
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/disDeal/vollter-integration" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdisDeal%2Fvollter-integration", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdisDeal%2Fvollter-integration'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53fb39f9d8f61fe18c6343d6d0e8e131ea199746
[INFO] testing disDeal/vollter-integration against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdisDeal%2Fvollter-integration" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/disDeal/vollter-integration on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/disDeal/vollter-integration
[INFO] finished tweaking git repo https://github.com/disDeal/vollter-integration
[INFO] tweaked toml for git repo https://github.com/disDeal/vollter-integration written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/disDeal/vollter-integration already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/milliams/plotlib.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace v0.3.37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46e656477ee82ef378b94e24603bb8069f5350e8d84409d15abdca39d575546d
[INFO] running `Command { std: "docker" "start" "-a" "46e656477ee82ef378b94e24603bb8069f5350e8d84409d15abdca39d575546d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46e656477ee82ef378b94e24603bb8069f5350e8d84409d15abdca39d575546d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46e656477ee82ef378b94e24603bb8069f5350e8d84409d15abdca39d575546d", kill_on_drop: false }`
[INFO] [stdout] 46e656477ee82ef378b94e24603bb8069f5350e8d84409d15abdca39d575546d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3211eb7d629b35c8935d71c84d4c58cc88f025e524e9c7a8fbe0c94016fbd8bd
[INFO] running `Command { std: "docker" "start" "-a" "3211eb7d629b35c8935d71c84d4c58cc88f025e524e9c7a8fbe0c94016fbd8bd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling svg v0.5.12
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling backtrace v0.3.37
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling plotlib v0.4.0 (https://github.com/milliams/plotlib.git?branch=master#000aee05)
[INFO] [stderr]    Compiling volter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `K` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let K = |x: f64, s: f64| (x * x - s * s).exp();
[INFO] [stdout]   |         ^ help: convert the identifier to snake case (notice the capitalization): `k`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.38s
[INFO] running `Command { std: "docker" "inspect" "3211eb7d629b35c8935d71c84d4c58cc88f025e524e9c7a8fbe0c94016fbd8bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3211eb7d629b35c8935d71c84d4c58cc88f025e524e9c7a8fbe0c94016fbd8bd", kill_on_drop: false }`
[INFO] [stdout] 3211eb7d629b35c8935d71c84d4c58cc88f025e524e9c7a8fbe0c94016fbd8bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5298a6ed6cadc637661e67a7bcba31932885267b259a52965c59da23cdc4712c
[INFO] running `Command { std: "docker" "start" "-a" "5298a6ed6cadc637661e67a7bcba31932885267b259a52965c59da23cdc4712c", kill_on_drop: false }`
[INFO] [stderr]    Compiling volter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `K` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let K = |x: f64, s: f64| (x * x - s * s).exp();
[INFO] [stdout]   |         ^ help: convert the identifier to snake case (notice the capitalization): `k`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "5298a6ed6cadc637661e67a7bcba31932885267b259a52965c59da23cdc4712c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5298a6ed6cadc637661e67a7bcba31932885267b259a52965c59da23cdc4712c", kill_on_drop: false }`
[INFO] [stdout] 5298a6ed6cadc637661e67a7bcba31932885267b259a52965c59da23cdc4712c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 94e147748f32321ac866f1a0b9e27d4b8ee2f0ff70ac73012314c76ee2a4c1fa
[INFO] running `Command { std: "docker" "start" "-a" "94e147748f32321ac866f1a0b9e27d4b8ee2f0ff70ac73012314c76ee2a4c1fa", kill_on_drop: false }`
[INFO] [stderr] warning: variable `K` should have a snake case name
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let K = |x: f64, s: f64| (x * x - s * s).exp();
[INFO] [stderr]   |         ^ help: convert the identifier to snake case (notice the capitalization): `k`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `volter` (bin "volter" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/volter-cb64fbedd1cd7534)
[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" "94e147748f32321ac866f1a0b9e27d4b8ee2f0ff70ac73012314c76ee2a4c1fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e147748f32321ac866f1a0b9e27d4b8ee2f0ff70ac73012314c76ee2a4c1fa", kill_on_drop: false }`
[INFO] [stdout] 94e147748f32321ac866f1a0b9e27d4b8ee2f0ff70ac73012314c76ee2a4c1fa