[INFO] fetching crate susie 0.1.0...
[INFO] checking susie-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate susie 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate susie 0.1.0 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 crates.io crate susie 0.1.0
[INFO] finished tweaking crates.io crate susie 0.1.0
[INFO] tweaked toml for crates.io crate susie 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate susie 0.1.0 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blake2b_simd v0.5.9
[INFO] [stderr]   Downloaded rustyline v5.0.4
[INFO] [stderr]   Downloaded thiserror-impl v1.0.5
[INFO] [stderr]   Downloaded smallvec v1.0.0
[INFO] [stderr]   Downloaded thiserror v1.0.5
[INFO] [stderr]   Downloaded target-lexicon v0.9.0
[INFO] [stderr]   Downloaded indexmap v1.3.0
[INFO] [stderr]   Downloaded rug v1.6.0
[INFO] [stderr]   Downloaded cranelift v0.50.0
[INFO] [stderr]   Downloaded cranelift-entity v0.50.0
[INFO] [stderr]   Downloaded prolog_parser v0.8.34
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.50.0
[INFO] [stderr]   Downloaded cranelift-bforest v0.50.0
[INFO] [stderr]   Downloaded cranelift-frontend v0.50.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.50.0
[INFO] [stderr]   Downloaded scryer-prolog v0.8.115
[INFO] [stderr]   Downloaded cranelift-codegen v0.50.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.1.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0959040cd4a945a7c29efe924a91ae38da2b6f88e50acc4c791c52ab6084dbb4
[INFO] running `Command { std: "docker" "start" "-a" "0959040cd4a945a7c29efe924a91ae38da2b6f88e50acc4c791c52ab6084dbb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0959040cd4a945a7c29efe924a91ae38da2b6f88e50acc4c791c52ab6084dbb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0959040cd4a945a7c29efe924a91ae38da2b6f88e50acc4c791c52ab6084dbb4", kill_on_drop: false }`
[INFO] [stdout] 0959040cd4a945a7c29efe924a91ae38da2b6f88e50acc4c791c52ab6084dbb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 375e116dd3e2afe18a127ba4c370e0acf8d208a6e806de9fe2e162f5013da052
[INFO] running `Command { std: "docker" "start" "-a" "375e116dd3e2afe18a127ba4c370e0acf8d208a6e806de9fe2e162f5013da052", kill_on_drop: false }`
[INFO] [stderr] warning: susie v0.1.0 (/opt/rustwide/workdir) ignoring invalid dependency `scryer-prolog` which is missing a lib target
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling cranelift-entity v0.50.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.50.0
[INFO] [stderr]    Compiling target-lexicon v0.9.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking smallvec v1.0.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.50.0
[INFO] [stderr]     Checking cranelift-bforest v0.50.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.5
[INFO] [stderr]     Checking thiserror v1.0.5
[INFO] [stderr]    Compiling cranelift-codegen v0.50.0
[INFO] [stderr]     Checking cranelift-frontend v0.50.0
[INFO] [stderr]     Checking cranelift v0.50.0
[INFO] [stderr]     Checking susie v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.51s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.50.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "375e116dd3e2afe18a127ba4c370e0acf8d208a6e806de9fe2e162f5013da052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "375e116dd3e2afe18a127ba4c370e0acf8d208a6e806de9fe2e162f5013da052", kill_on_drop: false }`
[INFO] [stdout] 375e116dd3e2afe18a127ba4c370e0acf8d208a6e806de9fe2e162f5013da052