[INFO] crate c4 0.1.0 is already in cache
[INFO] extracting crate c4 0.1.0 into work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/reg/c4/0.1.0
[INFO] extracting crate c4 0.1.0 into work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/reg/c4/0.1.0
[INFO] validating manifest of c4-0.1.0 on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of c4-0.1.0 on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing c4-0.1.0
[INFO] finished frobbing c4-0.1.0
[INFO] frobbed toml for c4-0.1.0 written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/reg/c4/0.1.0/Cargo.toml
[INFO] started frobbing c4-0.1.0
[INFO] finished frobbing c4-0.1.0
[INFO] frobbed toml for c4-0.1.0 written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/reg/c4/0.1.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking c4-0.1.0 against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-6/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/reg/c4/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e5b3ce76d361c2160016359e37e1728a602b6f4b7ae8507e70e7e99c722b86a9
[INFO] running `"docker" "start" "-a" "e5b3ce76d361c2160016359e37e1728a602b6f4b7ae8507e70e7e99c722b86a9"`
[INFO] [stderr]     Checking c4 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: enum is never used: `Value`
[INFO] [stderr]  --> src/parser/mod.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub enum Value {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_vec`
[INFO] [stderr]   --> src/parser/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn from_vec(v: Vec<String>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_str`
[INFO] [stderr]   --> src/parser/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn from_str(s: &str) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_string`
[INFO] [stderr]   --> src/parser/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn from_string(s: &String) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Property`
[INFO] [stderr]   --> src/parser/mod.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | struct Property {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/parser/mod.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn new(_id: String, _value: Value) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Rule`
[INFO] [stderr]   --> src/parser/mod.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | struct Rule {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Selector`
[INFO] [stderr]   --> src/parser/mod.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | struct Selector(Vec<Rule>);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Value`
[INFO] [stderr]  --> src/parser/mod.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub enum Value {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_vec`
[INFO] [stderr]   --> src/parser/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn from_vec(v: Vec<String>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_str`
[INFO] [stderr]   --> src/parser/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn from_str(s: &str) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_string`
[INFO] [stderr]   --> src/parser/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn from_string(s: &String) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Property`
[INFO] [stderr]   --> src/parser/mod.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | struct Property {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/parser/mod.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn new(_id: String, _value: Value) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Rule`
[INFO] [stderr]   --> src/parser/mod.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | struct Rule {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Selector`
[INFO] [stderr]   --> src/parser/mod.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | struct Selector(Vec<Rule>);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "e5b3ce76d361c2160016359e37e1728a602b6f4b7ae8507e70e7e99c722b86a9"`
[INFO] running `"docker" "rm" "-f" "e5b3ce76d361c2160016359e37e1728a602b6f4b7ae8507e70e7e99c722b86a9"`
[INFO] [stdout] e5b3ce76d361c2160016359e37e1728a602b6f4b7ae8507e70e7e99c722b86a9