[INFO] updating cached repository NikosEfthias/rust-lessons-code
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/NikosEfthias/rust-lessons-code
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/NikosEfthias/rust-lessons-code" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/NikosEfthias/rust-lessons-code"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/NikosEfthias/rust-lessons-code'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/NikosEfthias/rust-lessons-code" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/NikosEfthias/rust-lessons-code"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/NikosEfthias/rust-lessons-code'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 85e333d4fe442602b75f5ef9df5c9d0634970e9c
[INFO] sha for GitHub repo NikosEfthias/rust-lessons-code: 85e333d4fe442602b75f5ef9df5c9d0634970e9c
[INFO] validating manifest of NikosEfthias/rust-lessons-code on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of NikosEfthias/rust-lessons-code on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing NikosEfthias/rust-lessons-code
[INFO] finished frobbing NikosEfthias/rust-lessons-code
[INFO] frobbed toml for NikosEfthias/rust-lessons-code written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/NikosEfthias/rust-lessons-code/Cargo.toml
[INFO] started frobbing NikosEfthias/rust-lessons-code
[INFO] finished frobbing NikosEfthias/rust-lessons-code
[INFO] frobbed toml for NikosEfthias/rust-lessons-code written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/NikosEfthias/rust-lessons-code/Cargo.toml
[INFO] crate NikosEfthias/rust-lessons-code already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking NikosEfthias/rust-lessons-code against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-1/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/NikosEfthias/rust-lessons-code:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d3e96ae3477e3003b08754c095108d799886cbfae5a267e94bf73daf07a40afb
[INFO] running `"docker" "start" "-a" "d3e96ae3477e3003b08754c095108d799886cbfae5a267e94bf73daf07a40afb"`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling curl v0.4.22
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling chttp v0.4.5
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking futures-core-preview v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]     Checking futures-channel-preview v0.2.2
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking futures-sink-preview v0.2.2
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking socket2 v0.3.9
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling openssl-sys v0.9.48
[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 futures-io-preview v0.2.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking futures-util-preview v0.2.2
[INFO] [stderr]     Checking crossbeam v0.7.1
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]     Checking chrono v0.4.7
[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]    Compiling withers_derive v0.2.0
[INFO] [stderr]     Checking repo v0.1.0 (/opt/crater/workdir)
[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] 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(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[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: 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: 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 48.91s
[INFO] running `"docker" "inspect" "d3e96ae3477e3003b08754c095108d799886cbfae5a267e94bf73daf07a40afb"`
[INFO] running `"docker" "rm" "-f" "d3e96ae3477e3003b08754c095108d799886cbfae5a267e94bf73daf07a40afb"`
[INFO] [stdout] d3e96ae3477e3003b08754c095108d799886cbfae5a267e94bf73daf07a40afb