[INFO] updating cached repository https://github.com/harshu4/easy_assign
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d19526850a96a26dbfd98791c6ce7e64db7e43d9
[INFO] testing harshu4/easy_assign against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharshu4%2Feasy_assign" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/harshu4/easy_assign on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/harshu4/easy_assign
[INFO] finished tweaking git repo https://github.com/harshu4/easy_assign
[INFO] tweaked toml for git repo https://github.com/harshu4/easy_assign written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/harshu4/easy_assign already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3d1136dc7c87696f16868cf706f72a1054ece6104b7f2b6880d61d7aec409673
[INFO] running `"docker" "start" "-a" "3d1136dc7c87696f16868cf706f72a1054ece6104b7f2b6880d61d7aec409673"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling standback v0.2.2
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling pom v3.1.0
[INFO] [stderr]    Compiling cmd_lib v0.7.8
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling rusttype v0.8.2
[INFO] [stderr]    Compiling png v0.16.2
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling time-macros-impl v0.1.0
[INFO] [stderr]    Compiling lopdf v0.24.0
[INFO] [stderr]    Compiling image v0.23.3
[INFO] [stderr]    Compiling time-macros v0.1.0
[INFO] [stderr]    Compiling time v0.2.9
[INFO] [stderr]    Compiling printpdf v0.3.2
[INFO] [stderr]    Compiling get_output v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufReader`
[INFO] [stderr]  --> src/pdf.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::BufReader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_utf8` found for type `str` in the current scope
[INFO] [stderr]    --> src/main.rs:108:42
[INFO] [stderr]     |
[INFO] [stderr] 108 |         let xterm_process:Vec<&str>=str::from_utf8(&xterm_process.stdout).unwrap().split(" ").collect(); 
[INFO] [stderr]     |                                          ^^^^^^^^^ function or associated item not found in `str`
[INFO] [stderr]     |
[INFO] [stderr] help: you are looking for the module in `std`, not the primitive type
[INFO] [stderr]     |
[INFO] [stderr] 108 |         let xterm_process:Vec<&str>=std::str::from_utf8(&xterm_process.stdout).unwrap().split(" ").collect(); 
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_utf8` found for type `str` in the current scope
[INFO] [stderr]    --> src/main.rs:123:41
[INFO] [stderr]     |
[INFO] [stderr] 123 |         let xvfb_process:Vec<&str>=str::from_utf8(&xvfb_process.stdout).unwrap().split(" ").collect(); 
[INFO] [stderr]     |                                         ^^^^^^^^^ function or associated item not found in `str`
[INFO] [stderr]     |
[INFO] [stderr] help: you are looking for the module in `std`, not the primitive type
[INFO] [stderr]     |
[INFO] [stderr] 123 |         let xvfb_process:Vec<&str>=std::str::from_utf8(&xvfb_process.stdout).unwrap().split(" ").collect(); 
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `get_output`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3d1136dc7c87696f16868cf706f72a1054ece6104b7f2b6880d61d7aec409673"`
[INFO] running `"docker" "rm" "-f" "3d1136dc7c87696f16868cf706f72a1054ece6104b7f2b6880d61d7aec409673"`
[INFO] [stdout] 3d1136dc7c87696f16868cf706f72a1054ece6104b7f2b6880d61d7aec409673