[INFO] cloning repository https://github.com/Mrhealer/erc20_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mrhealer/erc20_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrhealer%2Ferc20_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrhealer%2Ferc20_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97e8f7a0da62b772ed492bcbdb983e1e92c7702a
[INFO] checking Mrhealer/erc20_rust against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrhealer%2Ferc20_rust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mrhealer/erc20_rust 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 git repo https://github.com/Mrhealer/erc20_rust
[INFO] finished tweaking git repo https://github.com/Mrhealer/erc20_rust
[INFO] tweaked toml for git repo https://github.com/Mrhealer/erc20_rust written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Mrhealer/erc20_rust 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]  Downloading crates ...
[INFO] [stderr]   Downloaded ink_metadata v3.0.0-rc7
[INFO] [stderr]   Downloaded ink_allocator v3.0.0-rc7
[INFO] [stderr]   Downloaded ink_storage_derive v3.0.0-rc7
[INFO] [stderr]   Downloaded ink_env v3.0.0-rc7
[INFO] [stderr]   Downloaded ink_eth_compatibility v3.0.0-rc7
[INFO] [stderr]   Downloaded ink_lang_macro v3.0.0-rc7
[INFO] [stderr]   Downloaded ink_lang v3.0.0-rc7
[INFO] [stderr]   Downloaded ink_lang_codegen v3.0.0-rc7
[INFO] [stderr]   Downloaded ink_storage v3.0.0-rc7
[INFO] [stderr]   Downloaded ink_lang_ir v3.0.0-rc7
[INFO] [stderr]   Downloaded ink_prelude v3.0.0-rc7
[INFO] [stderr]   Downloaded ink_primitives v3.0.0-rc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 93ec834456e1316484d7db34646d0221c9c3048813d8f70a3cd71f0aaf8b4598
[INFO] running `Command { std: "docker" "start" "-a" "93ec834456e1316484d7db34646d0221c9c3048813d8f70a3cd71f0aaf8b4598", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93ec834456e1316484d7db34646d0221c9c3048813d8f70a3cd71f0aaf8b4598", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ec834456e1316484d7db34646d0221c9c3048813d8f70a3cd71f0aaf8b4598", kill_on_drop: false }`
[INFO] [stdout] 93ec834456e1316484d7db34646d0221c9c3048813d8f70a3cd71f0aaf8b4598
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3b4aa80093daf36d3a20dae6d86c81a1793e6007d78eae98d7d4688a30dd764a
[INFO] running `Command { std: "docker" "start" "-a" "3b4aa80093daf36d3a20dae6d86c81a1793e6007d78eae98d7d4688a30dd764a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling syn v1.0.83
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking byte-slice-cast v1.2.0
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking bitvec v0.20.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling libsecp256k1-core v0.3.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking ink_prelude v3.0.0-rc7
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]     Checking sha2 v0.9.8
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.3.0
[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking hmac-drbg v0.3.0
[INFO] [stderr]    Compiling libsecp256k1 v0.7.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]    Compiling blake2 v0.9.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking ink_allocator v3.0.0-rc7
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling ink_lang_ir v3.0.0-rc7
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]    Compiling impl-serde v0.3.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking array-init v2.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.1
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling ink_storage_derive v3.0.0-rc7
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v2.3.1
[INFO] [stderr]    Compiling scale-info-derive v1.0.0
[INFO] [stderr]    Compiling parity-scale-codec v2.3.1
[INFO] [stderr]    Compiling ink_primitives v3.0.0-rc7
[INFO] [stderr]    Compiling ink_lang_codegen v3.0.0-rc7
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]    Compiling ink_lang_macro v3.0.0-rc7
[INFO] [stderr]     Checking scale-info v1.0.0
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stderr]     Checking ink_metadata v3.0.0-rc7
[INFO] [stderr]     Checking ink_env v3.0.0-rc7
[INFO] [stderr]     Checking ink_storage v3.0.0-rc7
[INFO] [stderr]     Checking ink_eth_compatibility v3.0.0-rc7
[INFO] [stderr]     Checking ink_lang v3.0.0-rc7
[INFO] [stderr]     Checking erc20 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.14s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[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" "3b4aa80093daf36d3a20dae6d86c81a1793e6007d78eae98d7d4688a30dd764a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b4aa80093daf36d3a20dae6d86c81a1793e6007d78eae98d7d4688a30dd764a", kill_on_drop: false }`
[INFO] [stdout] 3b4aa80093daf36d3a20dae6d86c81a1793e6007d78eae98d7d4688a30dd764a