[INFO] cloning repository https://github.com/wareya/humbucker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wareya/humbucker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwareya%2Fhumbucker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwareya%2Fhumbucker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b84755a594bc34d7da9aab0f6d2e66b8e6451ab
[INFO] checking wareya/humbucker against master#f7b43542838f0a4a6cfdb17fbeadf45002042a77 for pr-138499
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwareya%2Fhumbucker" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wareya/humbucker on toolchain f7b43542838f0a4a6cfdb17fbeadf45002042a77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wareya/humbucker
[INFO] finished tweaking git repo https://github.com/wareya/humbucker
[INFO] tweaked toml for git repo https://github.com/wareya/humbucker written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wareya/humbucker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plotlib v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09d82bca4e043e3fd0eb9157b97d30791500a1a4a722224dafc14c3bd2e5d25d
[INFO] running `Command { std: "docker" "start" "-a" "09d82bca4e043e3fd0eb9157b97d30791500a1a4a722224dafc14c3bd2e5d25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09d82bca4e043e3fd0eb9157b97d30791500a1a4a722224dafc14c3bd2e5d25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09d82bca4e043e3fd0eb9157b97d30791500a1a4a722224dafc14c3bd2e5d25d", kill_on_drop: false }`
[INFO] [stdout] 09d82bca4e043e3fd0eb9157b97d30791500a1a4a722224dafc14c3bd2e5d25d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98a42cfa84080eb20dbee18b66b68bbda322909ff415894a529607878a9ecc0e
[INFO] running `Command { std: "docker" "start" "-a" "98a42cfa84080eb20dbee18b66b68bbda322909ff415894a529607878a9ecc0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking svg v0.7.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking plotlib v0.5.1
[INFO] [stderr]     Checking humbucker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `PointMarker`
[INFO] [stdout]  --> src/main.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | use plotlib::style::{PointMarker, LineStyle};
[INFO] [stdout]   |                      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PointMarker`
[INFO] [stdout]  --> src/main.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | use plotlib::style::{PointMarker, LineStyle};
[INFO] [stdout]   |                      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.66s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.7.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "98a42cfa84080eb20dbee18b66b68bbda322909ff415894a529607878a9ecc0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98a42cfa84080eb20dbee18b66b68bbda322909ff415894a529607878a9ecc0e", kill_on_drop: false }`
[INFO] [stdout] 98a42cfa84080eb20dbee18b66b68bbda322909ff415894a529607878a9ecc0e