[INFO] cloning repository https://github.com/ljl222/ink_erc20
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ljl222/ink_erc20" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fljl222%2Fink_erc20", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fljl222%2Fink_erc20'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9fab4c45f4cb041bfd134efda4316eca43222e55
[INFO] testing ljl222/ink_erc20 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fljl222%2Fink_erc20" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ljl222/ink_erc20
[INFO] finished tweaking git repo https://github.com/ljl222/ink_erc20
[INFO] tweaked toml for git repo https://github.com/ljl222/ink_erc20 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ljl222/ink_erc20 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ljl222/ink_erc20 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parity-scale-codec v2.3.1
[INFO] [stderr]   Downloaded byte-slice-cast v1.2.0
[INFO] [stderr]   Downloaded impl-trait-for-tuples v0.2.1
[INFO] [stderr]   Downloaded scale-info-derive v1.0.0
[INFO] [stderr]   Downloaded serde_derive v1.0.135
[INFO] [stderr]   Downloaded scale-info v1.0.0
[INFO] [stderr]   Downloaded libsecp256k1-gen-ecmult v0.3.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.79
[INFO] [stderr]   Downloaded ink_prelude v3.0.0-rc8
[INFO] [stderr]   Downloaded libsecp256k1-core v0.3.0
[INFO] [stderr]   Downloaded libsecp256k1-gen-genmult v0.3.0
[INFO] [stderr]   Downloaded libsecp256k1 v0.7.0
[INFO] [stderr]   Downloaded ink_storage v3.0.0-rc8
[INFO] [stderr]   Downloaded ink_lang_codegen v3.0.0-rc8
[INFO] [stderr]   Downloaded rayon-core v1.9.1
[INFO] [stderr]   Downloaded ink_lang v3.0.0-rc8
[INFO] [stderr]   Downloaded sha3 v0.10.0
[INFO] [stderr]   Downloaded array-init v2.0.0
[INFO] [stderr]   Downloaded semver v1.0.4
[INFO] [stderr]   Downloaded criterion-plot v0.4.4
[INFO] [stderr]   Downloaded plotters-svg v0.3.1
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.2
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.79
[INFO] [stderr]   Downloaded serde_json v1.0.78
[INFO] [stderr]   Downloaded rayon v1.5.1
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.79
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.6
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.6
[INFO] [stderr]   Downloaded bstr v0.2.17
[INFO] [stderr]   Downloaded ink_allocator v3.0.0-rc8
[INFO] [stderr]   Downloaded secp256k1 v0.21.2
[INFO] [stderr]   Downloaded impl-serde v0.3.2
[INFO] [stderr]   Downloaded web-sys v0.3.56
[INFO] [stderr]   Downloaded ink_eth_compatibility v3.0.0-rc8
[INFO] [stderr]   Downloaded ink_lang_macro v3.0.0-rc8
[INFO] [stderr]   Downloaded plotters-backend v0.3.2
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.79
[INFO] [stderr]   Downloaded csv v1.1.6
[INFO] [stderr]   Downloaded js-sys v0.3.56
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.79
[INFO] [stderr]   Downloaded criterion v0.3.5
[INFO] [stderr]   Downloaded sha2 v0.10.1
[INFO] [stderr]   Downloaded ink_metadata v3.0.0-rc8
[INFO] [stderr]   Downloaded ink_primitives v3.0.0-rc8
[INFO] [stderr]   Downloaded funty v1.1.0
[INFO] [stderr]   Downloaded radium v0.6.2
[INFO] [stderr]   Downloaded bitvec v0.20.4
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.1
[INFO] [stderr]   Downloaded serde_cbor v0.11.2
[INFO] [stderr]   Downloaded blake2 v0.10.2
[INFO] [stderr]   Downloaded serde v1.0.135
[INFO] [stderr]   Downloaded parity-scale-codec-derive v2.3.1
[INFO] [stderr]   Downloaded plotters v0.3.1
[INFO] [stderr]   Downloaded ink_storage_derive v3.0.0-rc8
[INFO] [stderr]   Downloaded ink_lang_ir v3.0.0-rc8
[INFO] [stderr]   Downloaded ink_env v3.0.0-rc8
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 109f777d6e28fca4143b1cb91fef9de412c8ffaf8942687dcf9ce72fa0d1fe17
[INFO] running `Command { std: "docker" "start" "-a" "109f777d6e28fca4143b1cb91fef9de412c8ffaf8942687dcf9ce72fa0d1fe17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "109f777d6e28fca4143b1cb91fef9de412c8ffaf8942687dcf9ce72fa0d1fe17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "109f777d6e28fca4143b1cb91fef9de412c8ffaf8942687dcf9ce72fa0d1fe17", kill_on_drop: false }`
[INFO] [stdout] 109f777d6e28fca4143b1cb91fef9de412c8ffaf8942687dcf9ce72fa0d1fe17
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 227a205b853b5b2ad7367f44ec6b26bf8371a8b58c5d916a6dd6622a08ef75c3
[INFO] running `Command { std: "docker" "start" "-a" "227a205b853b5b2ad7367f44ec6b26bf8371a8b58c5d916a6dd6622a08ef75c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling serde v1.0.135
[INFO] [stderr]    Compiling serde_derive v1.0.135
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.6
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling byte-slice-cast v1.2.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling ink_prelude v3.0.0-rc8
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling bitvec v0.20.4
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling ink_allocator v3.0.0-rc8
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling secp256k1-sys v0.4.2
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling block-buffer v0.10.0
[INFO] [stderr]    Compiling crypto-common v0.1.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling libsecp256k1-core v0.3.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling digest v0.10.1
[INFO] [stderr]    Compiling blake2 v0.10.2
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling sha3 v0.10.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling sha2 v0.10.1
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.3.0
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.3.0
[INFO] [stderr]    Compiling secp256k1 v0.21.2
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling array-init v2.0.0
[INFO] [stderr]    Compiling libsecp256k1 v0.7.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling impl-serde v0.3.2
[INFO] [stderr]    Compiling ink_lang_ir v3.0.0-rc8
[INFO] [stderr]    Compiling synstructure v0.12.6
[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-rc8
[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_lang_codegen v3.0.0-rc8
[INFO] [stderr]    Compiling ink_primitives v3.0.0-rc8
[INFO] [stderr]    Compiling ink_lang_macro v3.0.0-rc8
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling scale-info v1.0.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling ink_metadata v3.0.0-rc8
[INFO] [stderr]    Compiling ink_env v3.0.0-rc8
[INFO] [stderr]    Compiling ink_eth_compatibility v3.0.0-rc8
[INFO] [stderr]    Compiling ink_storage v3.0.0-rc8
[INFO] [stderr]    Compiling ink_lang v3.0.0-rc8
[INFO] [stderr]    Compiling erc2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Decode` and `Encode`
[INFO] [stdout]   --> lib.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |     use scale::{Encode, Decode};
[INFO] [stdout]    |                 ^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.63s
[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 2`
[INFO] running `Command { std: "docker" "inspect" "227a205b853b5b2ad7367f44ec6b26bf8371a8b58c5d916a6dd6622a08ef75c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "227a205b853b5b2ad7367f44ec6b26bf8371a8b58c5d916a6dd6622a08ef75c3", kill_on_drop: false }`
[INFO] [stdout] 227a205b853b5b2ad7367f44ec6b26bf8371a8b58c5d916a6dd6622a08ef75c3
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e95c914d8d6a0f2f5872192619ad8ab8bc2d205fd48ff3af6833274a28faa4b3
[INFO] running `Command { std: "docker" "start" "-a" "e95c914d8d6a0f2f5872192619ad8ab8bc2d205fd48ff3af6833274a28faa4b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling erc2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Decode` and `Encode`
[INFO] [stdout]   --> lib.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |     use scale::{Encode, Decode};
[INFO] [stdout]    |                 ^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.35s
[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 2`
[INFO] running `Command { std: "docker" "inspect" "e95c914d8d6a0f2f5872192619ad8ab8bc2d205fd48ff3af6833274a28faa4b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e95c914d8d6a0f2f5872192619ad8ab8bc2d205fd48ff3af6833274a28faa4b3", kill_on_drop: false }`
[INFO] [stdout] e95c914d8d6a0f2f5872192619ad8ab8bc2d205fd48ff3af6833274a28faa4b3
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ca6f0f9389956ad72c8f499820ed40e6a0ef3e6f01c15739700d65cbff7571d8
[INFO] running `Command { std: "docker" "start" "-a" "ca6f0f9389956ad72c8f499820ed40e6a0ef3e6f01c15739700d65cbff7571d8", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Decode` and `Encode`
[INFO] [stderr]   --> lib.rs:11:17
[INFO] [stderr]    |
[INFO] [stderr] 11 |     use scale::{Encode, Decode};
[INFO] [stderr]    |                 ^^^^^^  ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `erc2` (lib test) generated 1 warning (run `cargo fix --lib -p erc2 --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[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 2`
[INFO] [stderr]      Running unittests lib.rs (/opt/rustwide/target/debug/deps/erc2-ddcf510857dff3d8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ca6f0f9389956ad72c8f499820ed40e6a0ef3e6f01c15739700d65cbff7571d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca6f0f9389956ad72c8f499820ed40e6a0ef3e6f01c15739700d65cbff7571d8", kill_on_drop: false }`
[INFO] [stdout] ca6f0f9389956ad72c8f499820ed40e6a0ef3e6f01c15739700d65cbff7571d8