[INFO] cloning repository https://github.com/engusmaze/quantum-rand
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/engusmaze/quantum-rand" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fengusmaze%2Fquantum-rand", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fengusmaze%2Fquantum-rand'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3c0bddd36032a7221f977a5f872a6f479fa8db5
[INFO] checking engusmaze/quantum-rand against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fengusmaze%2Fquantum-rand" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/engusmaze/quantum-rand 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/engusmaze/quantum-rand
[INFO] finished tweaking git repo https://github.com/engusmaze/quantum-rand
[INFO] tweaked toml for git repo https://github.com/engusmaze/quantum-rand written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/engusmaze/quantum-rand 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] warning: unused manifest key: package.tags
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fdeflate v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 61aac2b1a944559c32bddb4cdd0bf2de6e17a12d22dba341cfe3b66836024ee1
[INFO] running `Command { std: "docker" "start" "-a" "61aac2b1a944559c32bddb4cdd0bf2de6e17a12d22dba341cfe3b66836024ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61aac2b1a944559c32bddb4cdd0bf2de6e17a12d22dba341cfe3b66836024ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61aac2b1a944559c32bddb4cdd0bf2de6e17a12d22dba341cfe3b66836024ee1", kill_on_drop: false }`
[INFO] [stdout] 61aac2b1a944559c32bddb4cdd0bf2de6e17a12d22dba341cfe3b66836024ee1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 39b1a56d574ca84d1428b24ee8a72bc2aa5aa94c56263cee29b43d1fda622e76
[INFO] running `Command { std: "docker" "start" "-a" "39b1a56d574ca84d1428b24ee8a72bc2aa5aa94c56263cee29b43d1fda622e76", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.tags
[INFO] [stderr]     Checking fdeflate v0.3.3
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking quantum-rand v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `Command { std: "docker" "inspect" "39b1a56d574ca84d1428b24ee8a72bc2aa5aa94c56263cee29b43d1fda622e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39b1a56d574ca84d1428b24ee8a72bc2aa5aa94c56263cee29b43d1fda622e76", kill_on_drop: false }`
[INFO] [stdout] 39b1a56d574ca84d1428b24ee8a72bc2aa5aa94c56263cee29b43d1fda622e76