[INFO] cloning repository https://github.com/raaaaayn/sorting-visualizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raaaaayn/sorting-visualizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraaaaayn%2Fsorting-visualizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraaaaayn%2Fsorting-visualizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68805c027e4b0a8bd21ec6b3f0df1fc151632746
[INFO] checking raaaaayn/sorting-visualizer against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraaaaayn%2Fsorting-visualizer" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/raaaaayn/sorting-visualizer 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/raaaaayn/sorting-visualizer
[INFO] finished tweaking git repo https://github.com/raaaaayn/sorting-visualizer
[INFO] tweaked toml for git repo https://github.com/raaaaayn/sorting-visualizer written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/raaaaayn/sorting-visualizer 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ee3fa76088d5eda326e79f309595701890894d832d17a51d8fa6f519942fea75
[INFO] running `Command { std: "docker" "start" "-a" "ee3fa76088d5eda326e79f309595701890894d832d17a51d8fa6f519942fea75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee3fa76088d5eda326e79f309595701890894d832d17a51d8fa6f519942fea75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee3fa76088d5eda326e79f309595701890894d832d17a51d8fa6f519942fea75", kill_on_drop: false }`
[INFO] [stdout] ee3fa76088d5eda326e79f309595701890894d832d17a51d8fa6f519942fea75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a7c31cebd5d2da564c89704195bcafa293a2ad3b8e145b8eecfcdb6e64045260
[INFO] running `Command { std: "docker" "start" "-a" "a7c31cebd5d2da564c89704195bcafa293a2ad3b8e145b8eecfcdb6e64045260", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.82
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling bumpalo v3.10.0
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.82
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.82
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.82
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.82
[INFO] [stderr]     Checking js-sys v0.3.59
[INFO] [stderr]     Checking web-sys v0.3.59
[INFO] [stderr]     Checking sorting-visualizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.92s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.82
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "a7c31cebd5d2da564c89704195bcafa293a2ad3b8e145b8eecfcdb6e64045260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c31cebd5d2da564c89704195bcafa293a2ad3b8e145b8eecfcdb6e64045260", kill_on_drop: false }`
[INFO] [stdout] a7c31cebd5d2da564c89704195bcafa293a2ad3b8e145b8eecfcdb6e64045260
[INFO] checking raaaaayn/sorting-visualizer against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraaaaayn%2Fsorting-visualizer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/raaaaayn/sorting-visualizer 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/raaaaayn/sorting-visualizer
[INFO] finished tweaking git repo https://github.com/raaaaayn/sorting-visualizer
[INFO] tweaked toml for git repo https://github.com/raaaaayn/sorting-visualizer written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/raaaaayn/sorting-visualizer 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ea07b8709959b756e496f5e58ff18d900247d9ff91c6d10a75e2d5d16ba01617
[INFO] running `Command { std: "docker" "start" "-a" "ea07b8709959b756e496f5e58ff18d900247d9ff91c6d10a75e2d5d16ba01617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea07b8709959b756e496f5e58ff18d900247d9ff91c6d10a75e2d5d16ba01617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea07b8709959b756e496f5e58ff18d900247d9ff91c6d10a75e2d5d16ba01617", kill_on_drop: false }`
[INFO] [stdout] ea07b8709959b756e496f5e58ff18d900247d9ff91c6d10a75e2d5d16ba01617
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7cf0997eda5da8af2799a0d78541effa3a0c0789fe8afeeb4cfef8efbfe9c5c4
[INFO] running `Command { std: "docker" "start" "-a" "7cf0997eda5da8af2799a0d78541effa3a0c0789fe8afeeb4cfef8efbfe9c5c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.82
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling bumpalo v3.10.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling wasm-bindgen v0.2.82
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.82
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.82
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.82
[INFO] [stderr]     Checking js-sys v0.3.59
[INFO] [stderr]     Checking web-sys v0.3.59
[INFO] [stderr]     Checking sorting-visualizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.17s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.82
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "7cf0997eda5da8af2799a0d78541effa3a0c0789fe8afeeb4cfef8efbfe9c5c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cf0997eda5da8af2799a0d78541effa3a0c0789fe8afeeb4cfef8efbfe9c5c4", kill_on_drop: false }`
[INFO] [stdout] 7cf0997eda5da8af2799a0d78541effa3a0c0789fe8afeeb4cfef8efbfe9c5c4