[INFO] cloning repository https://github.com/studio-lucia/fontbuild
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/studio-lucia/fontbuild" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudio-lucia%2Ffontbuild", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudio-lucia%2Ffontbuild'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7b3ee04e5046046aee3a6a2e8fa467bc2146fbf
[INFO] checking studio-lucia/fontbuild against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudio-lucia%2Ffontbuild" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/studio-lucia/fontbuild on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/studio-lucia/fontbuild
[INFO] finished tweaking git repo https://github.com/studio-lucia/fontbuild
[INFO] tweaked toml for git repo https://github.com/studio-lucia/fontbuild written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/studio-lucia/fontbuild 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.1.39
[INFO] [stderr]   Downloaded byteorder v1.0.0
[INFO] [stderr]   Downloaded num-iter v0.1.33
[INFO] [stderr]   Downloaded num-integer v0.1.34
[INFO] [stderr]   Downloaded thread_local v0.3.4
[INFO] [stderr]   Downloaded regex v0.2.2
[INFO] [stderr]   Downloaded clap v2.25.0
[INFO] [stderr]   Downloaded deflate v0.7.13
[INFO] [stderr]   Downloaded libc v0.2.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abd0edd90499f71d28e0b887d22f73ac6f30afeda3ffcd4f52c0de0bfd5f7d2d
[INFO] running `Command { std: "docker" "start" "-a" "abd0edd90499f71d28e0b887d22f73ac6f30afeda3ffcd4f52c0de0bfd5f7d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abd0edd90499f71d28e0b887d22f73ac6f30afeda3ffcd4f52c0de0bfd5f7d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd0edd90499f71d28e0b887d22f73ac6f30afeda3ffcd4f52c0de0bfd5f7d2d", kill_on_drop: false }`
[INFO] [stdout] abd0edd90499f71d28e0b887d22f73ac6f30afeda3ffcd4f52c0de0bfd5f7d2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f84370b3face0148db5e67cb9e57e372a8100752d63e7c5a19eced617bd693a
[INFO] running `Command { std: "docker" "start" "-a" "9f84370b3face0148db5e67cb9e57e372a8100752d63e7c5a19eced617bd693a", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.26
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]     Checking adler32 v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking inflate v0.2.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking deflate v0.7.13
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking textwrap v0.6.0
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking clap v2.25.0
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking png v0.9.0
[INFO] [stderr]     Checking fontbuild v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `png` is imported redundantly
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use png;
[INFO] [stdout]    |     ^^^ the item `png` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `png` is imported redundantly
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use png;
[INFO] [stdout]    |     ^^^ the item `png` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `Command { std: "docker" "inspect" "9f84370b3face0148db5e67cb9e57e372a8100752d63e7c5a19eced617bd693a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f84370b3face0148db5e67cb9e57e372a8100752d63e7c5a19eced617bd693a", kill_on_drop: false }`
[INFO] [stdout] 9f84370b3face0148db5e67cb9e57e372a8100752d63e7c5a19eced617bd693a