[INFO] cloning repository https://github.com/nedkamburov/scatter-plotter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nedkamburov/scatter-plotter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnedkamburov%2Fscatter-plotter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnedkamburov%2Fscatter-plotter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee03f7c3f7692a0b1fdb7c402db4420d79329732
[INFO] testing nedkamburov/scatter-plotter against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnedkamburov%2Fscatter-plotter" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nedkamburov/scatter-plotter on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nedkamburov/scatter-plotter
[INFO] finished tweaking git repo https://github.com/nedkamburov/scatter-plotter
[INFO] tweaked toml for git repo https://github.com/nedkamburov/scatter-plotter written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/nedkamburov/scatter-plotter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1514b800a18867d213a40ca5d15fb894f234dee250bf6cdde13b79b24b5de37e
[INFO] running `Command { std: "docker" "start" "-a" "1514b800a18867d213a40ca5d15fb894f234dee250bf6cdde13b79b24b5de37e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1514b800a18867d213a40ca5d15fb894f234dee250bf6cdde13b79b24b5de37e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1514b800a18867d213a40ca5d15fb894f234dee250bf6cdde13b79b24b5de37e", kill_on_drop: false }`
[INFO] [stdout] 1514b800a18867d213a40ca5d15fb894f234dee250bf6cdde13b79b24b5de37e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c7d07ce1fc1e874404174e8423dfdedc4b51dbe35c79b7ef45b881cec3fa072
[INFO] running `Command { std: "docker" "start" "-a" "3c7d07ce1fc1e874404174e8423dfdedc4b51dbe35c79b7ef45b881cec3fa072", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.61
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling wasm-bindgen v0.2.61
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.61
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.61
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.61
[INFO] [stderr]    Compiling scatter_plotter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `stern`
[INFO] [stdout]  --> src/lib.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn stern(n: u32) -> u32 { 
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hof`
[INFO] [stdout]   --> src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn hof(n: u32) -> u32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.05s
[INFO] running `Command { std: "docker" "inspect" "3c7d07ce1fc1e874404174e8423dfdedc4b51dbe35c79b7ef45b881cec3fa072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c7d07ce1fc1e874404174e8423dfdedc4b51dbe35c79b7ef45b881cec3fa072", kill_on_drop: false }`
[INFO] [stdout] 3c7d07ce1fc1e874404174e8423dfdedc4b51dbe35c79b7ef45b881cec3fa072
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a25595d211685be2d8268aa56402dc276236e00d21ae65d97bcfaba14f37924c
[INFO] running `Command { std: "docker" "start" "-a" "a25595d211685be2d8268aa56402dc276236e00d21ae65d97bcfaba14f37924c", kill_on_drop: false }`
[INFO] [stderr]    Compiling scatter_plotter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `stern`
[INFO] [stdout]  --> src/lib.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn stern(n: u32) -> u32 { 
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hof`
[INFO] [stdout]   --> src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn hof(n: u32) -> u32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "a25595d211685be2d8268aa56402dc276236e00d21ae65d97bcfaba14f37924c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a25595d211685be2d8268aa56402dc276236e00d21ae65d97bcfaba14f37924c", kill_on_drop: false }`
[INFO] [stdout] a25595d211685be2d8268aa56402dc276236e00d21ae65d97bcfaba14f37924c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f7816ed4ed46aef8c42213ee2665483f8e9c7131c99253ae6bd05e897d52869c
[INFO] running `Command { std: "docker" "start" "-a" "f7816ed4ed46aef8c42213ee2665483f8e9c7131c99253ae6bd05e897d52869c", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `stern`
[INFO] [stderr]  --> src/lib.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn stern(n: u32) -> u32 { 
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hof`
[INFO] [stderr]   --> src/lib.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn hof(n: u32) -> u32 {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `scatter_plotter` (bin "scatter_plotter" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/scatter_plotter-5cb9a20cda14b46d)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/scatter_plotter-1723b820ea412fb1)
[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" "f7816ed4ed46aef8c42213ee2665483f8e9c7131c99253ae6bd05e897d52869c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7816ed4ed46aef8c42213ee2665483f8e9c7131c99253ae6bd05e897d52869c", kill_on_drop: false }`
[INFO] [stdout] f7816ed4ed46aef8c42213ee2665483f8e9c7131c99253ae6bd05e897d52869c