[INFO] updating cached repository silversupreme/reckon
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/silversupreme/reckon
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/silversupreme/reckon" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/silversupreme/reckon"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/silversupreme/reckon'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/silversupreme/reckon" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/silversupreme/reckon"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/silversupreme/reckon'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1f31eb6ef6455b21d35fac53fbb4470315d5100f
[INFO] sha for GitHub repo silversupreme/reckon: 1f31eb6ef6455b21d35fac53fbb4470315d5100f
[INFO] validating manifest of silversupreme/reckon 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 silversupreme/reckon 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 silversupreme/reckon
[INFO] finished frobbing silversupreme/reckon
[INFO] frobbed toml for silversupreme/reckon written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/silversupreme/reckon/Cargo.toml
[INFO] started frobbing silversupreme/reckon
[INFO] finished frobbing silversupreme/reckon
[INFO] frobbed toml for silversupreme/reckon written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/silversupreme/reckon/Cargo.toml
[INFO] crate silversupreme/reckon 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 silversupreme/reckon against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-4/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/silversupreme/reckon:/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] 6670b1900aa2a6d1a04740e9d1660a9c4006d7fcf612c3a9565cb41b545f6a54
[INFO] running `"docker" "start" "-a" "6670b1900aa2a6d1a04740e9d1660a9c4006d7fcf612c3a9565cb41b545f6a54"`
[INFO] [stderr]     Checking reckon v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0599]: no method named `chars` found for type `&mut std::process::ChildStdout` in the current scope
[INFO] [stderr]    --> src/base.rs:154:28
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let mut c = stdout.chars();
[INFO] [stderr]     |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `reckon`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `chars` found for type `&mut std::process::ChildStdout` in the current scope
[INFO] [stderr]    --> src/base.rs:154:28
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let mut c = stdout.chars();
[INFO] [stderr]     |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `reckon`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6670b1900aa2a6d1a04740e9d1660a9c4006d7fcf612c3a9565cb41b545f6a54"`
[INFO] running `"docker" "rm" "-f" "6670b1900aa2a6d1a04740e9d1660a9c4006d7fcf612c3a9565cb41b545f6a54"`
[INFO] [stdout] 6670b1900aa2a6d1a04740e9d1660a9c4006d7fcf612c3a9565cb41b545f6a54