[INFO] cloning repository https://github.com/dcdavidcheung/png_to_svg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dcdavidcheung/png_to_svg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcdavidcheung%2Fpng_to_svg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcdavidcheung%2Fpng_to_svg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0aa8f29417196e9e95b6c7378d951d33de5b9874
[INFO] checking dcdavidcheung/png_to_svg against try#724e78794d2cf06eef820a24c9a4608d63435e1d for pr-149145
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcdavidcheung%2Fpng_to_svg" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dcdavidcheung/png_to_svg
[INFO] finished tweaking git repo https://github.com/dcdavidcheung/png_to_svg
[INFO] tweaked toml for git repo https://github.com/dcdavidcheung/png_to_svg written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dcdavidcheung/png_to_svg on toolchain 724e78794d2cf06eef820a24c9a4608d63435e1d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dcdavidcheung/png_to_svg 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" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking dcdavidcheung/png_to_svg against try#724e78794d2cf06eef820a24c9a4608d63435e1d for pr-149145
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcdavidcheung%2Fpng_to_svg" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dcdavidcheung/png_to_svg
[INFO] finished tweaking git repo https://github.com/dcdavidcheung/png_to_svg
[INFO] tweaked toml for git repo https://github.com/dcdavidcheung/png_to_svg written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dcdavidcheung/png_to_svg on toolchain 724e78794d2cf06eef820a24c9a4608d63435e1d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dcdavidcheung/png_to_svg 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" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded roots v0.0.6
[INFO] [stderr]   Downloaded visioncortex v0.8.0
[INFO] [stderr]   Downloaded flo_curves v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 240d0ea398287215e3a698f721cca0ba39c2b23b041a1b6f2e315c7618254cd7
[INFO] running `Command { std: "docker" "start" "-a" "240d0ea398287215e3a698f721cca0ba39c2b23b041a1b6f2e315c7618254cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "240d0ea398287215e3a698f721cca0ba39c2b23b041a1b6f2e315c7618254cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "240d0ea398287215e3a698f721cca0ba39c2b23b041a1b6f2e315c7618254cd7", kill_on_drop: false }`
[INFO] [stdout] 240d0ea398287215e3a698f721cca0ba39c2b23b041a1b6f2e315c7618254cd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ed9480a837a483bf5758fcc804aa5efc8b102695e4ac95529f503e385250eb5
[INFO] running `Command { std: "docker" "start" "-a" "4ed9480a837a483bf5758fcc804aa5efc8b102695e4ac95529f503e385250eb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling rayon-core v1.10.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking roots v0.0.6
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking bytemuck v1.13.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking flo_curves v0.3.1
[INFO] [stderr]     Checking rayon v1.6.1
[INFO] [stderr]     Checking visioncortex v0.8.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking png_to_svg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.91s
[INFO] running `Command { std: "docker" "inspect" "4ed9480a837a483bf5758fcc804aa5efc8b102695e4ac95529f503e385250eb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ed9480a837a483bf5758fcc804aa5efc8b102695e4ac95529f503e385250eb5", kill_on_drop: false }`
[INFO] [stdout] 4ed9480a837a483bf5758fcc804aa5efc8b102695e4ac95529f503e385250eb5