[INFO] cloning repository https://github.com/BurNiinTRee/brainfucks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BurNiinTRee/brainfucks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurNiinTRee%2Fbrainfucks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurNiinTRee%2Fbrainfucks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2c6acaddb8e727ed2462072f6d9de9a2c8407ce
[INFO] checking BurNiinTRee/brainfucks against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurNiinTRee%2Fbrainfucks" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BurNiinTRee/brainfucks 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/BurNiinTRee/brainfucks
[INFO] finished tweaking git repo https://github.com/BurNiinTRee/brainfucks
[INFO] tweaked toml for git repo https://github.com/BurNiinTRee/brainfucks written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/BurNiinTRee/brainfucks 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hashbrown v0.9.0
[INFO] [stderr]   Downloaded cranelift-entity v0.66.0
[INFO] [stderr]   Downloaded target-lexicon v0.10.0
[INFO] [stderr]   Downloaded cranelift v0.66.0
[INFO] [stderr]   Downloaded cranelift-frontend v0.66.0
[INFO] [stderr]   Downloaded anyhow v1.0.32
[INFO] [stderr]   Downloaded cranelift-bforest v0.66.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.66.0
[INFO] [stderr]   Downloaded regalloc v0.0.27
[INFO] [stderr]   Downloaded cranelift-codegen v0.66.0
[INFO] [stderr]   Downloaded syn v1.0.41
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.66.0
[INFO] [stderr]   Downloaded cranelift-object v0.66.0
[INFO] [stderr]   Downloaded cranelift-module v0.66.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c34d5af088899af1f959daed3086c75a7111d3ce14846b1e2bbd51f20af1cb02
[INFO] running `Command { std: "docker" "start" "-a" "c34d5af088899af1f959daed3086c75a7111d3ce14846b1e2bbd51f20af1cb02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c34d5af088899af1f959daed3086c75a7111d3ce14846b1e2bbd51f20af1cb02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c34d5af088899af1f959daed3086c75a7111d3ce14846b1e2bbd51f20af1cb02", kill_on_drop: false }`
[INFO] [stdout] c34d5af088899af1f959daed3086c75a7111d3ce14846b1e2bbd51f20af1cb02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e15f2e35abdc28317b9540f5f44251aee1453bc5df6f2805052c8efb0ec88107
[INFO] running `Command { std: "docker" "start" "-a" "e15f2e35abdc28317b9540f5f44251aee1453bc5df6f2805052c8efb0ec88107", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.66.0
[INFO] [stderr]    Compiling cranelift-entity v0.66.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]     Checking parser v0.1.0 (/opt/rustwide/workdir/parser)
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.66.0
[INFO] [stderr]     Checking interpreter v0.1.0 (/opt/rustwide/workdir/interpreter)
[INFO] [stderr]     Checking comp2c v0.1.0 (/opt/rustwide/workdir/comp2c)
[INFO] [stderr]     Checking regalloc v0.0.27
[INFO] [stderr]     Checking cranelift-bforest v0.66.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]    Compiling cranelift-codegen v0.66.0
[INFO] [stderr]     Checking cranelift-module v0.66.0
[INFO] [stderr]     Checking cranelift-frontend v0.66.0
[INFO] [stderr]     Checking cranelift-object v0.66.0
[INFO] [stderr]     Checking cranelift v0.66.0
[INFO] [stderr]     Checking craneliftcomp v0.1.0 (/opt/rustwide/workdir/craneliftcomp)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.28s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.66.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "e15f2e35abdc28317b9540f5f44251aee1453bc5df6f2805052c8efb0ec88107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e15f2e35abdc28317b9540f5f44251aee1453bc5df6f2805052c8efb0ec88107", kill_on_drop: false }`
[INFO] [stdout] e15f2e35abdc28317b9540f5f44251aee1453bc5df6f2805052c8efb0ec88107
[INFO] checking BurNiinTRee/brainfucks against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurNiinTRee%2Fbrainfucks" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BurNiinTRee/brainfucks 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/BurNiinTRee/brainfucks
[INFO] finished tweaking git repo https://github.com/BurNiinTRee/brainfucks
[INFO] tweaked toml for git repo https://github.com/BurNiinTRee/brainfucks written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/BurNiinTRee/brainfucks 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 664bd2c3ae5f88e5f8e297c2f2a889891bc1d2ab772717184965cd44bef5b4f6
[INFO] running `Command { std: "docker" "start" "-a" "664bd2c3ae5f88e5f8e297c2f2a889891bc1d2ab772717184965cd44bef5b4f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "664bd2c3ae5f88e5f8e297c2f2a889891bc1d2ab772717184965cd44bef5b4f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "664bd2c3ae5f88e5f8e297c2f2a889891bc1d2ab772717184965cd44bef5b4f6", kill_on_drop: false }`
[INFO] [stdout] 664bd2c3ae5f88e5f8e297c2f2a889891bc1d2ab772717184965cd44bef5b4f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3eb51b1cdcd870d0a0861e3ba61e6d25ef67061785ba7f4e02b47485a7837c4b
[INFO] running `Command { std: "docker" "start" "-a" "3eb51b1cdcd870d0a0861e3ba61e6d25ef67061785ba7f4e02b47485a7837c4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling cranelift-entity v0.66.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.66.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking parser v0.1.0 (/opt/rustwide/workdir/parser)
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking interpreter v0.1.0 (/opt/rustwide/workdir/interpreter)
[INFO] [stderr]     Checking comp2c v0.1.0 (/opt/rustwide/workdir/comp2c)
[INFO] [stderr]     Checking cranelift-bforest v0.66.0
[INFO] [stderr]     Checking regalloc v0.0.27
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.66.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]    Compiling cranelift-codegen v0.66.0
[INFO] [stderr]     Checking cranelift-module v0.66.0
[INFO] [stderr]     Checking cranelift-frontend v0.66.0
[INFO] [stderr]     Checking cranelift-object v0.66.0
[INFO] [stderr]     Checking cranelift v0.66.0
[INFO] [stderr]     Checking craneliftcomp v0.1.0 (/opt/rustwide/workdir/craneliftcomp)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.05s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.66.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "3eb51b1cdcd870d0a0861e3ba61e6d25ef67061785ba7f4e02b47485a7837c4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb51b1cdcd870d0a0861e3ba61e6d25ef67061785ba7f4e02b47485a7837c4b", kill_on_drop: false }`
[INFO] [stdout] 3eb51b1cdcd870d0a0861e3ba61e6d25ef67061785ba7f4e02b47485a7837c4b