[INFO] cloning repository https://github.com/NikosEfthias/rust-lessons-code
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NikosEfthias/rust-lessons-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikosEfthias%2Frust-lessons-code"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikosEfthias%2Frust-lessons-code'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 85e333d4fe442602b75f5ef9df5c9d0634970e9c
[INFO] checking NikosEfthias/rust-lessons-code against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikosEfthias%2Frust-lessons-code" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NikosEfthias/rust-lessons-code on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/NikosEfthias/rust-lessons-code
[INFO] finished tweaking git repo https://github.com/NikosEfthias/rust-lessons-code
[INFO] tweaked toml for git repo https://github.com/NikosEfthias/rust-lessons-code written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/NikosEfthias/rust-lessons-code already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chttp v0.4.5
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9bbcfad54b82edd68c2a67750bffdcf9e3ca6a08f18b83e80b095a4330eebcce
[INFO] running `"docker" "start" "-a" "9bbcfad54b82edd68c2a67750bffdcf9e3ca6a08f18b83e80b095a4330eebcce"`
[INFO] [stderr]    Compiling curl v0.4.22
[INFO] [stderr]    Compiling chttp v0.4.5
[INFO] [stderr]     Checking futures-core-preview v0.2.3
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.1
[INFO] [stderr]    Compiling curl-sys v0.4.20
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking socket2 v0.3.9
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking futures-channel-preview v0.2.2
[INFO] [stderr]     Checking futures-io-preview v0.2.2
[INFO] [stderr]     Checking futures-sink-preview v0.2.2
[INFO] [stderr]     Checking crossbeam v0.7.1
[INFO] [stderr]     Checking futures-util-preview v0.2.2
[INFO] [stderr]    Compiling withers_derive v0.2.0
[INFO] [stderr]     Checking futures-executor-preview v0.2.2
[INFO] [stderr]     Checking futures-stable-preview v0.2.3
[INFO] [stderr]     Checking futures-async-runtime-preview v0.2.3
[INFO] [stderr]     Checking futures-preview v0.2.2
[INFO] [stderr]     Checking repo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never used: `phone`
[INFO] [stderr]   --> src/structs.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     phone: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/traits.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let mut my_money = Currency::new(12, 50);
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]   --> src/traits.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn add(&self, c: &Currency) -> Self
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_mut`
[INFO] [stderr]   --> src/traits.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn add_mut(&mut self, c: &Currency) -> &Self
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `phone`
[INFO] [stderr]   --> src/structs.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     phone: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/traits.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let mut my_money = Currency::new(12, 50);
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]   --> src/traits.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn add(&self, c: &Currency) -> Self
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_mut`
[INFO] [stderr]   --> src/traits.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn add_mut(&mut self, c: &Currency) -> &Self
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `IpError::*`
[INFO] [stderr]  --> src/enums.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     use IpError::*;
[INFO] [stderr]   |         ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `IpError::*`
[INFO] [stderr]  --> src/enums.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     use IpError::*;
[INFO] [stderr]   |         ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Yerel`
[INFO] [stderr]   --> src/enums.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Yerel(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Yerel`
[INFO] [stderr]   --> src/enums.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Yerel(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.81s
[INFO] running `"docker" "inspect" "9bbcfad54b82edd68c2a67750bffdcf9e3ca6a08f18b83e80b095a4330eebcce"`
[INFO] running `"docker" "rm" "-f" "9bbcfad54b82edd68c2a67750bffdcf9e3ca6a08f18b83e80b095a4330eebcce"`
[INFO] [stdout] 9bbcfad54b82edd68c2a67750bffdcf9e3ca6a08f18b83e80b095a4330eebcce