[INFO] crate rebar 0.0.1 is already in cache
[INFO] checking rebar-0.0.1 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate rebar 0.0.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rebar 0.0.1 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rebar 0.0.1
[INFO] finished tweaking crates.io crate rebar 0.0.1
[INFO] tweaked toml for crates.io crate rebar 0.0.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7728801efbc43c03f1f7cf7157ffcbf241945cae01c1b6d8c73e3cd3c620655e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7728801efbc43c03f1f7cf7157ffcbf241945cae01c1b6d8c73e3cd3c620655e"`
[INFO] [stderr]     Checking rebar v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no function or associated item named `from_str` found for struct `std::string::String` in the current scope
[INFO] [stderr]   --> src/lib.rs:25:28
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut line = String::from_str("\r");
[INFO] [stderr]    |                            ^^^^^^^^ function or associated item not found in `std::string::String`
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the trait is in scope
[INFO] [stderr] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stderr]    |
[INFO] [stderr] 4  | use std::str::FromStr;
[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 `rebar`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no function or associated item named `from_str` found for struct `std::string::String` in the current scope
[INFO] [stderr]   --> src/lib.rs:25:28
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut line = String::from_str("\r");
[INFO] [stderr]    |                            ^^^^^^^^ function or associated item not found in `std::string::String`
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the trait is in scope
[INFO] [stderr] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stderr]    |
[INFO] [stderr] 4  | use std::str::FromStr;
[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 `rebar`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7728801efbc43c03f1f7cf7157ffcbf241945cae01c1b6d8c73e3cd3c620655e"`
[INFO] running `"docker" "rm" "-f" "7728801efbc43c03f1f7cf7157ffcbf241945cae01c1b6d8c73e3cd3c620655e"`
[INFO] [stdout] 7728801efbc43c03f1f7cf7157ffcbf241945cae01c1b6d8c73e3cd3c620655e
