[INFO] updating cached repository ceymard/rust-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ceymard/rust-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ceymard/rust-test" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ceymard/rust-test"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ceymard/rust-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ceymard/rust-test" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ceymard/rust-test"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ceymard/rust-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b1b4e5212ac9e80185cd6a1267f09b91d3a0b9e2
[INFO] sha for GitHub repo ceymard/rust-test: b1b4e5212ac9e80185cd6a1267f09b91d3a0b9e2
[INFO] validating manifest of ceymard/rust-test on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ceymard/rust-test on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ceymard/rust-test
[INFO] finished frobbing ceymard/rust-test
[INFO] frobbed toml for ceymard/rust-test written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ceymard/rust-test/Cargo.toml
[INFO] started frobbing ceymard/rust-test
[INFO] finished frobbing ceymard/rust-test
[INFO] frobbed toml for ceymard/rust-test written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ceymard/rust-test/Cargo.toml
[INFO] crate ceymard/rust-test already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ceymard/rust-test against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-2/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ceymard/rust-test:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2a5fcce579301ed36dd096a19844073067904e2c616ec09d63326c19d4d35e85
[INFO] running `"docker" "start" "-a" "2a5fcce579301ed36dd096a19844073067904e2c616ec09d63326c19d4d35e85"`
[INFO] [stderr]     Checking encoding_rs v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.8
[INFO] [stderr]     Checking backtrace-sys v0.1.16
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking backtrace v0.3.4
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking zip v0.2.6
[INFO] [stderr]     Checking quick-xml v0.10.0
[INFO] [stderr]     Checking calamine v0.12.1
[INFO] [stderr]     Checking hello v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `cell_to_json`
[INFO] [stderr]   --> src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn cell_to_json(cell: &DataType) -> std::result::Result<Value, &str> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cell_to_json`
[INFO] [stderr]   --> src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn cell_to_json(cell: &DataType) -> std::result::Result<Value, &str> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.23s
[INFO] running `"docker" "inspect" "2a5fcce579301ed36dd096a19844073067904e2c616ec09d63326c19d4d35e85"`
[INFO] running `"docker" "rm" "-f" "2a5fcce579301ed36dd096a19844073067904e2c616ec09d63326c19d4d35e85"`
[INFO] [stdout] 2a5fcce579301ed36dd096a19844073067904e2c616ec09d63326c19d4d35e85