[INFO] fetching crate lucet-module-data 0.1.2...
[INFO] checking lucet-module-data-0.1.2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate lucet-module-data 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate lucet-module-data 0.1.2 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 lucet-module-data 0.1.2
[INFO] finished tweaking crates.io crate lucet-module-data 0.1.2
[INFO] tweaked toml for crates.io crate lucet-module-data 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 75 packages
[INFO] [stderr]       Adding base64 v0.10.1 (latest: v0.22.0)
[INFO] [stderr]       Adding bincode v1.0.1 (latest: v1.3.3)
[INFO] [stderr]       Adding block-buffer v0.7.3 (latest: v0.10.4)
[INFO] [stderr]       Adding block-padding v0.1.5 (latest: v0.3.3)
[INFO] [stderr]       Adding cranelift-bforest v0.31.0 (latest: v0.106.1)
[INFO] [stderr]       Adding cranelift-codegen v0.31.0 (latest: v0.106.1)
[INFO] [stderr]       Adding cranelift-codegen-meta v0.31.0 (latest: v0.106.1)
[INFO] [stderr]       Adding cranelift-entity v0.31.0 (latest: v0.106.1)
[INFO] [stderr]       Adding crypto-mac v0.7.0 (latest: v0.11.1)
[INFO] [stderr]       Adding digest v0.8.1 (latest: v0.10.7)
[INFO] [stderr]       Adding generic-array v0.12.4 (latest: v1.0.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding goblin v0.0.22 (latest: v0.8.0)
[INFO] [stderr]       Adding hmac v0.7.1 (latest: v0.12.1)
[INFO] [stderr]       Adding minisign v0.5.11 (latest: v0.7.6)
[INFO] [stderr]       Adding num-derive v0.2.5 (latest: v0.4.2)
[INFO] [stderr]       Adding object v0.12.0 (latest: v0.34.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding opaque-debug v0.2.3 (latest: v0.3.1)
[INFO] [stderr]       Adding parity-wasm v0.38.0 (latest: v0.45.0)
[INFO] [stderr]       Adding pbkdf2 v0.3.0 (latest: v0.12.2)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.79)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.35)
[INFO] [stderr]       Adding rpassword v3.0.2 (latest: v7.3.1)
[INFO] [stderr]       Adding rustc_version v0.2.3 (latest: v0.4.0)
[INFO] [stderr]       Adding scroll v0.9.2 (latest: v0.12.0)
[INFO] [stderr]       Adding scroll_derive v0.9.5 (latest: v0.12.0)
[INFO] [stderr]       Adding scrypt v0.2.0 (latest: v0.11.0)
[INFO] [stderr]       Adding semver v0.9.0 (latest: v1.0.22)
[INFO] [stderr]       Adding semver-parser v0.7.0 (latest: v0.10.2)
[INFO] [stderr]       Adding sha2 v0.8.2 (latest: v0.10.8)
[INFO] [stderr]       Adding subtle v1.0.0 (latest: v2.5.0)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.58)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] [stderr]       Adding target-lexicon v0.4.0 (latest: v0.12.14)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.4)
[INFO] [stderr]       Adding uuid v0.7.4 (latest: v1.8.0)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded target-lexicon v0.4.0
[INFO] [stderr]   Downloaded scrypt v0.2.0
[INFO] [stderr]   Downloaded rpassword v3.0.2
[INFO] [stderr]   Downloaded scroll_derive v0.9.5
[INFO] [stderr]   Downloaded object v0.12.0
[INFO] [stderr]   Downloaded bincode v1.0.1
[INFO] [stderr]   Downloaded cranelift-bforest v0.31.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.31.0
[INFO] [stderr]   Downloaded scroll v0.9.2
[INFO] [stderr]   Downloaded cranelift-entity v0.31.0
[INFO] [stderr]   Downloaded minisign v0.5.11
[INFO] [stderr]   Downloaded parity-wasm v0.38.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.31.0
[INFO] [stderr]   Downloaded goblin v0.0.22
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b56f250161a0da9a21cd19b91d8489320d944d89eb8ac66f510565eb5f3d9f52
[INFO] running `Command { std: "docker" "start" "-a" "b56f250161a0da9a21cd19b91d8489320d944d89eb8ac66f510565eb5f3d9f52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b56f250161a0da9a21cd19b91d8489320d944d89eb8ac66f510565eb5f3d9f52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b56f250161a0da9a21cd19b91d8489320d944d89eb8ac66f510565eb5f3d9f52", kill_on_drop: false }`
[INFO] [stdout] b56f250161a0da9a21cd19b91d8489320d944d89eb8ac66f510565eb5f3d9f52
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd25b481abbdb694b59ca737e3c8317cf0978d83dd9f19e868abe627f622346e
[INFO] running `Command { std: "docker" "start" "-a" "bd25b481abbdb694b59ca737e3c8317cf0978d83dd9f19e868abe627f622346e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling cranelift-entity v0.31.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking rpassword v3.0.2
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking parity-wasm v0.38.0
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.31.0
[INFO] [stderr]     Checking cranelift-bforest v0.31.0
[INFO] [stderr]     Checking scrypt v0.2.0
[INFO] [stderr]     Checking minisign v0.5.11
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling target-lexicon v0.4.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling cranelift-codegen v0.31.0
[INFO] [stderr]     Checking goblin v0.0.22
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking object v0.12.0
[INFO] [stderr]     Checking lucet-module-data v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/bindings.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde_json::{self, Map, Value};
[INFO] [stdout]   |                  ^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/bindings.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde_json::{self, Map, Value};
[INFO] [stdout]   |                  ^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.32s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.31.0
[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" "bd25b481abbdb694b59ca737e3c8317cf0978d83dd9f19e868abe627f622346e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd25b481abbdb694b59ca737e3c8317cf0978d83dd9f19e868abe627f622346e", kill_on_drop: false }`
[INFO] [stdout] bd25b481abbdb694b59ca737e3c8317cf0978d83dd9f19e868abe627f622346e