[INFO] crate c4 0.1.0 is already in cache
[INFO] extracting crate c4 0.1.0 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/c4/0.1.0
[INFO] extracting crate c4 0.1.0 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/c4/0.1.0
[INFO] validating manifest of c4-0.1.0 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of c4-0.1.0 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-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-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/c4/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing c4-0.1.0 against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/c4/0.1.0:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] d3a5bbb213785b56b9e36c1bb10aea64ac697f95ea76a040bafb21c6b8d94e08
[INFO] running `"docker" "start" "-a" "d3a5bbb213785b56b9e36c1bb10aea64ac697f95ea76a040bafb21c6b8d94e08"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "d3a5bbb213785b56b9e36c1bb10aea64ac697f95ea76a040bafb21c6b8d94e08"`
[INFO] running `"docker" "rm" "-f" "d3a5bbb213785b56b9e36c1bb10aea64ac697f95ea76a040bafb21c6b8d94e08"`
[INFO] [stdout] d3a5bbb213785b56b9e36c1bb10aea64ac697f95ea76a040bafb21c6b8d94e08
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/c4/0.1.0:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] e388cb3be9a9e9b8137ca6c4ff2b8c1e2265a75e2f082ef7f9c18cbf35a916e9
[INFO] running `"docker" "start" "-a" "e388cb3be9a9e9b8137ca6c4ff2b8c1e2265a75e2f082ef7f9c18cbf35a916e9"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "e388cb3be9a9e9b8137ca6c4ff2b8c1e2265a75e2f082ef7f9c18cbf35a916e9"`
[INFO] running `"docker" "rm" "-f" "e388cb3be9a9e9b8137ca6c4ff2b8c1e2265a75e2f082ef7f9c18cbf35a916e9"`
[INFO] [stdout] e388cb3be9a9e9b8137ca6c4ff2b8c1e2265a75e2f082ef7f9c18cbf35a916e9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/c4/0.1.0:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 05809fcfd3db118277c371a377b0fc0d14b9c5f482838a5daf11914a99031bcd
[INFO] running `"docker" "start" "-a" "05809fcfd3db118277c371a377b0fc0d14b9c5f482838a5daf11914a99031bcd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/c4-2555ca2e0eb34df0
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests c4
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "05809fcfd3db118277c371a377b0fc0d14b9c5f482838a5daf11914a99031bcd"`
[INFO] running `"docker" "rm" "-f" "05809fcfd3db118277c371a377b0fc0d14b9c5f482838a5daf11914a99031bcd"`
[INFO] [stdout] 05809fcfd3db118277c371a377b0fc0d14b9c5f482838a5daf11914a99031bcd