[INFO] cloning repository https://github.com/KambangSinclaire/rust-playaround
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KambangSinclaire/rust-playaround" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKambangSinclaire%2Frust-playaround", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKambangSinclaire%2Frust-playaround'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f085886144c0c0ff0f494580ca5be5b8f19b4094
[INFO] checking KambangSinclaire/rust-playaround against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKambangSinclaire%2Frust-playaround" "/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/KambangSinclaire/rust-playaround on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KambangSinclaire/rust-playaround
[INFO] finished tweaking git repo https://github.com/KambangSinclaire/rust-playaround
[INFO] tweaked toml for git repo https://github.com/KambangSinclaire/rust-playaround written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KambangSinclaire/rust-playaround 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded primitive-types v0.12.1
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[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6773fff8a9d32049bf5bfb6f4135c6ec7656fdfa995c05571957eed7ce5688b
[INFO] running `Command { std: "docker" "start" "-a" "c6773fff8a9d32049bf5bfb6f4135c6ec7656fdfa995c05571957eed7ce5688b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6773fff8a9d32049bf5bfb6f4135c6ec7656fdfa995c05571957eed7ce5688b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6773fff8a9d32049bf5bfb6f4135c6ec7656fdfa995c05571957eed7ce5688b", kill_on_drop: false }`
[INFO] [stdout] c6773fff8a9d32049bf5bfb6f4135c6ec7656fdfa995c05571957eed7ce5688b
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bf04662369a610c17f37bc155d6ba6ea24a6104f262be81773976d585730380
[INFO] running `Command { std: "docker" "start" "-a" "0bf04662369a610c17f37bc155d6ba6ea24a6104f262be81773976d585730380", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling serde v1.0.174
[INFO] [stderr]    Compiling serde_derive v1.0.174
[INFO] [stderr]     Checking zeroize v1.6.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling winnow v0.5.0
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking const-oid v0.9.4
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking der v0.7.7
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking byte-slice-cast v1.2.2
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking keccak v0.1.4
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking spki v0.7.2
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking sec1 v0.7.3
[INFO] [stderr]     Checking crypto-bigint v0.5.2
[INFO] [stderr]    Compiling serde_json v1.0.103
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling openssl-sys v0.9.90
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking signature v2.1.0
[INFO] [stderr]     Checking rfc6979 v0.4.0
[INFO] [stderr]     Checking fixed-hash v0.8.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking unicode-ident v1.0.11
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.87
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling rustls v0.21.5
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking elliptic-curve v0.13.5
[INFO] [stderr]    Compiling openssl v0.10.55
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking ecdsa v0.16.8
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]    Compiling bumpalo v3.13.0
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking impl-serde v0.4.0
[INFO] [stderr]     Checking cargo-platform v0.1.3
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking k256 v0.13.1
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]    Compiling serde_spanned v0.6.3
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling toml_edit v0.19.14
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]     Checking regex-automata v0.3.3
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.87
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]    Compiling wasm-bindgen v0.2.87
[INFO] [stderr]    Compiling prettyplease v0.2.12
[INFO] [stderr]     Checking tempfile v3.7.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls-webpki v0.101.1
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking bs58 v0.4.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.87
[INFO] [stderr]     Checking ripemd v0.1.3
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1f12b9b0fdbe735968ac002792a720f0ba4faca6/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=ba0266cdfdf70d42 -C extra-filename=-ba0266cdfdf70d42 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f22e03594a544300.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-6ebacdf3f0cba727.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-c50f7aaa526ef20c.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0bf04662369a610c17f37bc155d6ba6ea24a6104f262be81773976d585730380", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bf04662369a610c17f37bc155d6ba6ea24a6104f262be81773976d585730380", kill_on_drop: false }`
[INFO] [stdout] 0bf04662369a610c17f37bc155d6ba6ea24a6104f262be81773976d585730380
[INFO] checking KambangSinclaire/rust-playaround against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKambangSinclaire%2Frust-playaround" "/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/KambangSinclaire/rust-playaround on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KambangSinclaire/rust-playaround
[INFO] finished tweaking git repo https://github.com/KambangSinclaire/rust-playaround
[INFO] tweaked toml for git repo https://github.com/KambangSinclaire/rust-playaround written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KambangSinclaire/rust-playaround 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6900e262d75a5e851f95e84c8cffd6fbdab7447866c22442459dd3a5cb8b64d
[INFO] running `Command { std: "docker" "start" "-a" "d6900e262d75a5e851f95e84c8cffd6fbdab7447866c22442459dd3a5cb8b64d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6900e262d75a5e851f95e84c8cffd6fbdab7447866c22442459dd3a5cb8b64d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6900e262d75a5e851f95e84c8cffd6fbdab7447866c22442459dd3a5cb8b64d", kill_on_drop: false }`
[INFO] [stdout] d6900e262d75a5e851f95e84c8cffd6fbdab7447866c22442459dd3a5cb8b64d
[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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab15dafac56156d5ed066063450c5b6339e89273c2c2046758e5216adc2fff05
[INFO] running `Command { std: "docker" "start" "-a" "ab15dafac56156d5ed066063450c5b6339e89273c2c2046758e5216adc2fff05", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
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[INFO] [stderr]    Compiling serde_derive v1.0.174
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[INFO] [stderr]     Checking ethers-signers v2.0.8
[INFO] [stderr]     Checking ethers-contract-abigen v2.0.8
[INFO] [stderr]     Checking ethers-providers v2.0.8
[INFO] [stderr]     Checking ethers-etherscan v2.0.8
[INFO] [stderr]     Checking ethers-addressbook v2.0.8
[INFO] [stderr]    Compiling ethers-contract-derive v2.0.8
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[INFO] [stderr]     Checking ethers-middleware v2.0.8
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[INFO] [stderr]     Checking playaround v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/m6_pattern_matching.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `increment_signin_count`, `change_email`, and `get_user_email` are never used
[INFO] [stdout]   --> src/m2_structs.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl User {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 12 |     fn increment_signin_count(&mut self){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn change_email(&mut self,new_email:&str){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn get_user_email(&self)->String{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change_username` is never used
[INFO] [stdout]   --> src/m2_structs.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn change_username(user:&mut User,new_username:&str){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Scholar` is never used
[INFO] [stdout]  --> src/m3_traits.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Scholar {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Character` is never used
[INFO] [stdout]  --> src/m3_traits.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Character {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EtherAddress` is never used
[INFO] [stdout]  --> src/m4_polimorphism.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait EtherAddress {
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ether_data` is never used
[INFO] [stdout]   --> src/m4_polimorphism.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn get_ether_data<T: EtherAddress>(address: T) -> Address {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tests`
[INFO] [stdout]  --> src/m6_pattern_matching.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |         let tests = match number {
[INFO] [stdout]   |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_tests`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/m6_pattern_matching.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let result = match test_enum {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_data`
[INFO] [stdout]   --> src/m6_pattern_matching.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let my_data = if let Some(data) = test_enum { data } else { 1 };
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `increment_signin_count` is never used
[INFO] [stdout]   --> src/m2_structs.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl User {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 12 |     fn increment_signin_count(&mut self){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `choose_strategy` is never used
[INFO] [stdout]  --> src/m3_traits.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Scholar {
[INFO] [stdout]   |       ------- method in this trait
[INFO] [stdout] 2 |     fn choose_style(&self) -> String;
[INFO] [stdout] 3 |     fn choose_strategy(&self) -> String;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Warrior` and `Teacher` are never constructed
[INFO] [stdout]   --> src/m3_traits.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | enum Character {
[INFO] [stdout]    |      --------- variants in this enum
[INFO] [stdout] 8  |     Warrior,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 9  |     Pastor,
[INFO] [stdout] 10 |     Teacher,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Character` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/m1_enums.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |         dbg!(under5_result_built_in);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 43.38s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.87
[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" "ab15dafac56156d5ed066063450c5b6339e89273c2c2046758e5216adc2fff05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab15dafac56156d5ed066063450c5b6339e89273c2c2046758e5216adc2fff05", kill_on_drop: false }`
[INFO] [stdout] ab15dafac56156d5ed066063450c5b6339e89273c2c2046758e5216adc2fff05