[INFO] cloning repository https://github.com/chanelmoreno/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chanelmoreno/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchanelmoreno%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchanelmoreno%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7e957693483fe5d33f0d5d1ac034c67f7ea3c05
[INFO] testing chanelmoreno/rust-playground against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchanelmoreno%2Frust-playground" "/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/chanelmoreno/rust-playground on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chanelmoreno/rust-playground
[INFO] finished tweaking git repo https://github.com/chanelmoreno/rust-playground
[INFO] tweaked toml for git repo https://github.com/chanelmoreno/rust-playground written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/chanelmoreno/rust-playground 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const-hex v1.9.1
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbd0f10a43f2d646ccc9f69380372a8453e81625f1ea1406d3e028cf95fae8e3
[INFO] running `Command { std: "docker" "start" "-a" "fbd0f10a43f2d646ccc9f69380372a8453e81625f1ea1406d3e028cf95fae8e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbd0f10a43f2d646ccc9f69380372a8453e81625f1ea1406d3e028cf95fae8e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd0f10a43f2d646ccc9f69380372a8453e81625f1ea1406d3e028cf95fae8e3", kill_on_drop: false }`
[INFO] [stdout] fbd0f10a43f2d646ccc9f69380372a8453e81625f1ea1406d3e028cf95fae8e3
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bca4911c18b8693a7f5f778cb7250e1a4517d3a4555e65b5027e29bcd6bdd249
[INFO] running `Command { std: "docker" "start" "-a" "bca4911c18b8693a7f5f778cb7250e1a4517d3a4555e65b5027e29bcd6bdd249", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde v1.0.189
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling const-oid v0.9.5
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling zeroize v1.6.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling hashbrown v0.14.1
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling winnow v0.5.17
[INFO] [stderr]    Compiling cpufeatures v0.2.9
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling base16ct v0.2.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling keccak v0.1.4
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling der v0.7.8
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling indexmap v2.0.2
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling smallvec v1.11.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling regex-syntax v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling socket2 v0.5.4
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling ff v0.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling group v0.13.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling spki v0.7.2
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling pkcs8 v0.10.2
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling sec1 v0.7.3
[INFO] [stderr]    Compiling crypto-bigint v0.5.3
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling sha3 v0.10.8
[INFO] [stderr]    Compiling rustix v0.38.19
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling rfc6979 v0.4.0
[INFO] [stderr]    Compiling fixed-hash v0.8.0
[INFO] [stderr]    Compiling signature v2.1.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling regex-automata v0.4.1
[INFO] [stderr]    Compiling uint v0.9.5
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling base64 v0.21.4
[INFO] [stderr]    Compiling openssl-sys v0.9.93
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.87
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling elliptic-curve v0.13.6
[INFO] [stderr]    Compiling rustls v0.21.7
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling bumpalo v3.14.0
[INFO] [stderr]    Compiling ecdsa v0.16.8
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling openssl v0.10.57
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling k256 v0.13.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling inout v0.1.3
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling tempfile v3.8.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.87
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling const-hex v1.9.1
[INFO] [stderr]    Compiling regex v1.10.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling wasm-bindgen v0.2.87
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling prettyplease v0.2.15
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]    Compiling time-macros v0.2.15
[INFO] [stderr]    Compiling sct v0.7.0
[INFO] [stderr]    Compiling rustls-webpki v0.101.6
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.87
[INFO] [stderr]    Compiling deranged v0.3.9
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling async-trait v0.1.73
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling webpki-roots v0.25.2
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling rustls-pemfile v1.0.3
[INFO] [stderr]    Compiling bs58 v0.5.0
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling ripemd v0.1.3
[INFO] [stderr]    Compiling encoding_rs v0.8.33
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling data-encoding v2.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.189
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling strum_macros v0.25.2
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]    Compiling rlp-derive v0.1.0
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling auto_impl v1.1.0
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.87
[INFO] [stderr]    Compiling time v0.3.30
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling bech32 v0.9.1
[INFO] [stderr]    Compiling ipnet v2.8.0
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling tracing v0.1.39
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling dunce v1.0.4
[INFO] [stderr]    Compiling strum v0.25.0
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling pem v1.1.1
[INFO] [stderr]    Compiling salsa20 v0.10.2
[INFO] [stderr]    Compiling pbkdf2 v0.11.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling js-sys v0.3.64
[INFO] [stderr]    Compiling send_wrapper v0.4.0
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling hashers v1.0.1
[INFO] [stderr]    Compiling scrypt v0.10.0
[INFO] [stderr]    Compiling ctr v0.9.2
[INFO] [stderr]    Compiling simple_asn1 v0.6.2
[INFO] [stderr]    Compiling aes v0.8.3
[INFO] [stderr]    Compiling pin-project v1.1.3
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling pbkdf2 v0.12.2
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling futures-locks v0.7.1
[INFO] [stderr]    Compiling gloo-timers v0.2.6
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling serde_spanned v0.6.3
[INFO] [stderr]    Compiling impl-serde v0.4.0
[INFO] [stderr]    Compiling cargo-platform v0.1.4
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling coins-core v0.8.7
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling coins-bip32 v0.8.7
[INFO] [stderr]    Compiling rlp v0.5.2
[INFO] [stderr]    Compiling tokio v1.33.0
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling open-fastrlp-derive v0.1.1
[INFO] [stderr]    Compiling impl-rlp v0.3.0
[INFO] [stderr]    Compiling enr v0.9.1
[INFO] [stderr]    Compiling coins-bip39 v0.8.7
[INFO] [stderr]    Compiling cargo_metadata v0.17.0
[INFO] [stderr]    Compiling jsonwebtoken v8.3.0
[INFO] [stderr]    Compiling eth-keystore v0.5.0
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling tungstenite v0.20.1
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling toml v0.7.8
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.6.5
[INFO] [stderr]    Compiling scale-info-derive v2.9.0
[INFO] [stderr]    Compiling num_enum_derive v0.7.0
[INFO] [stderr]    Compiling num_enum v0.7.0
[INFO] [stderr]    Compiling parity-scale-codec v3.6.5
[INFO] [stderr]    Compiling tokio-util v0.7.9
[INFO] [stderr]    Compiling tokio-rustls v0.24.1
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling scale-info v2.9.0
[INFO] [stderr]    Compiling impl-codec v0.6.0
[INFO] [stderr]    Compiling tokio-tungstenite v0.20.1
[INFO] [stderr]    Compiling h2 v0.3.21
[INFO] [stderr]    Compiling primitive-types v0.12.2
[INFO] [stderr]    Compiling ethbloom v0.13.0
[INFO] [stderr]    Compiling ethereum-types v0.14.1
[INFO] [stderr]    Compiling ethabi v18.0.0
[INFO] [stderr]    Compiling open-fastrlp v0.1.4
[INFO] [stderr]    Compiling hyper v0.14.27
[INFO] [stderr]    Compiling ethers-core v2.0.10
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling hyper-rustls v0.24.1
[INFO] [stderr]    Compiling reqwest v0.11.22
[INFO] [stderr]    Compiling ethers-contract-abigen v2.0.10
[INFO] [stderr]    Compiling ethers-providers v2.0.10
[INFO] [stderr]    Compiling ethers-signers v2.0.10
[INFO] [stderr]    Compiling ethers-etherscan v2.0.10
[INFO] [stderr]    Compiling ethers-addressbook v2.0.10
[INFO] [stderr]    Compiling ethers-contract-derive v2.0.10
[INFO] [stderr]    Compiling ethers-contract v2.0.10
[INFO] [stderr]    Compiling ethers-middleware v2.0.10
[INFO] [stderr]    Compiling ethers v2.0.10
[INFO] [stderr]    Compiling playaround v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`
[INFO] [stdout]  --> src/m8_collections.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/m2_structs.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct User {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `increment_signin_count`, `change_email`, `change_username`, and `change_activestate` 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] 17 |     fn change_email(&mut self, new_email: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn change_username(&mut self, new_username: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn change_activestate(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change_username_manual` is never used
[INFO] [stdout]   --> src/m2_structs.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn change_username_manual(user: &mut User, new_username: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Attacker` is never used
[INFO] [stdout]  --> src/m3_traits.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Attacker {
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Character` is never used
[INFO] [stdout]  --> src/m3_traits.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | enum Character {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EthAddress` is never used
[INFO] [stdout]  --> src/m4_polymorphism.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait EthAddress {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_eth_data` is never used
[INFO] [stdout]   --> src/m4_polymorphism.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn get_eth_data<T: EthAddress>(address: T) -> Address {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `my_async_call` is never used
[INFO] [stdout]  --> src/m7_async.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | async fn my_async_call(url: &str) -> Result<serde_json::Value, reqwest::Error> { //
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.84s
[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" "bca4911c18b8693a7f5f778cb7250e1a4517d3a4555e65b5027e29bcd6bdd249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bca4911c18b8693a7f5f778cb7250e1a4517d3a4555e65b5027e29bcd6bdd249", kill_on_drop: false }`
[INFO] [stdout] bca4911c18b8693a7f5f778cb7250e1a4517d3a4555e65b5027e29bcd6bdd249
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] caa5efdd0ed6c6fb071707e41653cb60d055b2ff7118c96feb18f4056cdd681b
[INFO] running `Command { std: "docker" "start" "-a" "caa5efdd0ed6c6fb071707e41653cb60d055b2ff7118c96feb18f4056cdd681b", kill_on_drop: false }`
[INFO] [stderr]    Compiling playaround v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/m6_patterns.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/m6_patterns.rs:67:22
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Location{x, y:0} => println!("y is on the axis"),
[INFO] [stdout]    |                      ^ help: try ignoring the field: `x: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/m6_patterns.rs:68:27
[INFO] [stdout]    |
[INFO] [stdout] 68 |             Location{x:0, y} => println!("x is on the axis"),
[INFO] [stdout]    |                           ^ help: try ignoring the field: `y: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/m6_patterns.rs:69:22
[INFO] [stdout]    |
[INFO] [stdout] 69 |             Location{x, y} => println!("neither is on the axis")
[INFO] [stdout]    |                      ^ help: try ignoring the field: `x: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/m6_patterns.rs:69:25
[INFO] [stdout]    |
[INFO] [stdout] 69 |             Location{x, y} => println!("neither is on the axis")
[INFO] [stdout]    |                         ^ help: try ignoring the field: `y: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test_score`
[INFO] [stdout]   --> src/m8_collections.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let test_score = results_hm.get(person1);
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `active` is never read
[INFO] [stdout]  --> src/m2_structs.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct User {
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8 |     active: bool,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `change_username` and `change_activestate` are never used
[INFO] [stdout]   --> src/m2_structs.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl User {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn change_username(&mut self, new_username: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn change_activestate(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Warrior` and `Wizard` are never constructed
[INFO] [stdout]   --> src/m3_traits.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | enum Character {
[INFO] [stdout]    |      --------- variants in this enum
[INFO] [stdout] 10 |     Warrior,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 11 |     Archer,
[INFO] [stdout] 12 |     Wizard,
[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:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |         dbg!(check_under_five_built_in_result_enum_result);
[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: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/m1_enums.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         dbg!(check_under_five_built_in_result_enum_result);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.49s
[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" "caa5efdd0ed6c6fb071707e41653cb60d055b2ff7118c96feb18f4056cdd681b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caa5efdd0ed6c6fb071707e41653cb60d055b2ff7118c96feb18f4056cdd681b", kill_on_drop: false }`
[INFO] [stdout] caa5efdd0ed6c6fb071707e41653cb60d055b2ff7118c96feb18f4056cdd681b
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f7dc8b3ff6dc2d2f8dc4d4c5970e5f9eab6ecc9d8ed17038466f4a3c70e83d92
[INFO] running `Command { std: "docker" "start" "-a" "f7dc8b3ff6dc2d2f8dc4d4c5970e5f9eab6ecc9d8ed17038466f4a3c70e83d92", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]  --> src/m6_patterns.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     use super::*;
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/m6_patterns.rs:67:22
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Location{x, y:0} => println!("y is on the axis"),
[INFO] [stderr]    |                      ^ help: try ignoring the field: `x: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/m6_patterns.rs:68:27
[INFO] [stderr]    |
[INFO] [stderr] 68 |             Location{x:0, y} => println!("x is on the axis"),
[INFO] [stderr]    |                           ^ help: try ignoring the field: `y: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/m6_patterns.rs:69:22
[INFO] [stderr]    |
[INFO] [stderr] 69 |             Location{x, y} => println!("neither is on the axis")
[INFO] [stderr]    |                      ^ help: try ignoring the field: `x: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/m6_patterns.rs:69:25
[INFO] [stderr]    |
[INFO] [stderr] 69 |             Location{x, y} => println!("neither is on the axis")
[INFO] [stderr]    |                         ^ help: try ignoring the field: `y: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test_score`
[INFO] [stderr]   --> src/m8_collections.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let test_score = results_hm.get(person1);
[INFO] [stderr]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_score`
[INFO] [stderr] 
[INFO] [stderr] warning: field `active` is never read
[INFO] [stderr]  --> src/m2_structs.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct User {
[INFO] [stderr]   |        ---- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 8 |     active: bool,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `change_username` and `change_activestate` are never used
[INFO] [stderr]   --> src/m2_structs.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl User {
[INFO] [stderr]    | --------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 21 |     fn change_username(&mut self, new_username: &str) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 |     fn change_activestate(&mut self) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Warrior` and `Wizard` are never constructed
[INFO] [stderr]   --> src/m3_traits.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | enum Character {
[INFO] [stderr]    |      --------- variants in this enum
[INFO] [stderr] 10 |     Warrior,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 11 |     Archer,
[INFO] [stderr] 12 |     Wizard,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Character` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/m1_enums.rs:96:9
[INFO] [stderr]    |
[INFO] [stderr] 96 |         dbg!(check_under_five_built_in_result_enum_result);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/m1_enums.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         dbg!(check_under_five_built_in_result_enum_result);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `playaround` (bin "playaround" test) generated 11 warnings (run `cargo fix --bin "playaround" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/playaround-4d80815d3b059333)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test m3_traits::test::tests_traits ... ok
[INFO] [stdout] test m6_patterns::test::tests_match_struct ... ok
[INFO] [stdout] test m6_patterns::test::tests_match_guard ... ok
[INFO] [stdout] test m2_structs::test::tests_struts ... ok
[INFO] [stdout] test m4_polymorphism::test::tests_poly ... ok
[INFO] [stdout] test m1_enums::test::tests_enums ... ok
[INFO] [stdout] test m6_patterns::test::tests_match_option ... ok
[INFO] [stdout] test m6_patterns::test::tests_patterns ... ok
[INFO] [stdout] test m8_collections::test::tests_hashmaps ... ok
[INFO] [stdout] test m8_collections::test::tests_hashsets ... ok
[INFO] [stdout] test m9_decl_macros::tests::tests_declarative_macro ... ok
[INFO] [stdout] test m7_async::tests::tests_calls_async_fn ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f7dc8b3ff6dc2d2f8dc4d4c5970e5f9eab6ecc9d8ed17038466f4a3c70e83d92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7dc8b3ff6dc2d2f8dc4d4c5970e5f9eab6ecc9d8ed17038466f4a3c70e83d92", kill_on_drop: false }`
[INFO] [stdout] f7dc8b3ff6dc2d2f8dc4d4c5970e5f9eab6ecc9d8ed17038466f4a3c70e83d92
