[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#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fengusmaze%2Fquantum-rand" "/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/engusmaze/quantum-rand on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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-6-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.tags
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 256fe1675c081494f2cb62fe6dbf037a9c11203095ba900cab606074b586945b
[INFO] running `Command { std: "docker" "start" "-a" "256fe1675c081494f2cb62fe6dbf037a9c11203095ba900cab606074b586945b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "256fe1675c081494f2cb62fe6dbf037a9c11203095ba900cab606074b586945b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "256fe1675c081494f2cb62fe6dbf037a9c11203095ba900cab606074b586945b", kill_on_drop: false }`
[INFO] [stdout] 256fe1675c081494f2cb62fe6dbf037a9c11203095ba900cab606074b586945b
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16321e7ca47410726e3c7f5043238196002418091b25d52b966d08194afc6589
[INFO] running `Command { std: "docker" "start" "-a" "16321e7ca47410726e3c7f5043238196002418091b25d52b966d08194afc6589", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.tags
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking quantum-rand v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking fdeflate v0.3.3
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.29s
[INFO] running `Command { std: "docker" "inspect" "16321e7ca47410726e3c7f5043238196002418091b25d52b966d08194afc6589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16321e7ca47410726e3c7f5043238196002418091b25d52b966d08194afc6589", kill_on_drop: false }`
[INFO] [stdout] 16321e7ca47410726e3c7f5043238196002418091b25d52b966d08194afc6589
[INFO] checking engusmaze/quantum-rand against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fengusmaze%2Fquantum-rand" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/engusmaze/quantum-rand on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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-6-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.tags
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ae0bebd6a43f6cc2d56d5f296217b50d1a581721c239bf5b5046e75ecc36f42
[INFO] running `Command { std: "docker" "start" "-a" "6ae0bebd6a43f6cc2d56d5f296217b50d1a581721c239bf5b5046e75ecc36f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ae0bebd6a43f6cc2d56d5f296217b50d1a581721c239bf5b5046e75ecc36f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ae0bebd6a43f6cc2d56d5f296217b50d1a581721c239bf5b5046e75ecc36f42", kill_on_drop: false }`
[INFO] [stdout] 6ae0bebd6a43f6cc2d56d5f296217b50d1a581721c239bf5b5046e75ecc36f42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c5744c10b808946bf1db54b63712bf2dfefeb97c41fb99fa325d17939237d78
[INFO] running `Command { std: "docker" "start" "-a" "9c5744c10b808946bf1db54b63712bf2dfefeb97c41fb99fa325d17939237d78", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.tags
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking quantum-rand v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking fdeflate v0.3.3
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.00s
[INFO] running `Command { std: "docker" "inspect" "9c5744c10b808946bf1db54b63712bf2dfefeb97c41fb99fa325d17939237d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c5744c10b808946bf1db54b63712bf2dfefeb97c41fb99fa325d17939237d78", kill_on_drop: false }`
[INFO] [stdout] 9c5744c10b808946bf1db54b63712bf2dfefeb97c41fb99fa325d17939237d78