[INFO] crate reckon 0.1.0 is already in cache
[INFO] checking reckon-0.1.0 against master#9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7 for pr-64564
[INFO] extracting crate reckon 0.1.0 into work/builds/worker-5/source
[INFO] validating manifest of crates.io crate reckon 0.1.0 on toolchain 9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate reckon 0.1.0
[INFO] finished tweaking crates.io crate reckon 0.1.0
[INFO] tweaked toml for crates.io crate reckon 0.1.0 written to work/builds/worker-5/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e4180671b0fe5f262475ffabe557df3823f5c91160e611e665868448e48403de
[INFO] running `"docker" "start" "-a" "e4180671b0fe5f262475ffabe557df3823f5c91160e611e665868448e48403de"`
[INFO] [stderr]     Checking reckon v0.1.0 (/opt/rustwide/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]     |                            ^^^^^ method not found in `&mut std::process::ChildStdout`
[INFO] [stderr] 
[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]     |                            ^^^^^ method not found in `&mut std::process::ChildStdout`
[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: 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: could not compile `reckon`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e4180671b0fe5f262475ffabe557df3823f5c91160e611e665868448e48403de"`
[INFO] running `"docker" "rm" "-f" "e4180671b0fe5f262475ffabe557df3823f5c91160e611e665868448e48403de"`
[INFO] [stdout] e4180671b0fe5f262475ffabe557df3823f5c91160e611e665868448e48403de