[INFO] updating cached repository https://github.com/anurse/overseer
[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] 74a3d345c50e8d844509cbae7e4592899381c333
[INFO] testing anurse/overseer against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanurse%2Foverseer" "/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/anurse/overseer 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/anurse/overseer
[INFO] finished tweaking git repo https://github.com/anurse/overseer
[INFO] tweaked toml for git repo https://github.com/anurse/overseer written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/anurse/overseer 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] 1da76490d62d880a3dee594a6b2c6f87ffe19c585d18ab05831b677bd399261b
[INFO] running `"docker" "start" "-a" "1da76490d62d880a3dee594a6b2c6f87ffe19c585d18ab05831b677bd399261b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling overseer v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved imports `self::getopts::optopt`, `self::getopts::getopts`
[INFO] [stderr]  --> src/driver.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | use self::getopts::{optopt, getopts};
[INFO] [stderr]   |                     ^^^^^^  ^^^^^^^ no `getopts` in the root
[INFO] [stderr]   |                     |
[INFO] [stderr]   |                     no `optopt` in the root
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `fail` in this scope
[INFO] [stderr]   --> src/driver.rs:19:14
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Err(f) => fail!(f.to_string())
[INFO] [stderr]    |                       ^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]  --> src/driver.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate getopts;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `tail` found for struct `std::vec::Vec<std::string::String>` in the current scope
[INFO] [stderr]   --> src/driver.rs:17:36
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let matches = match getopts(args.tail(), opts) {
[INFO] [stderr]    |                                          ^^^^ method not found in `std::vec::Vec<std::string::String>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for reference `&std::string::String` in the current scope
[INFO] [stderr]   --> src/driver.rs:29:30
[INFO] [stderr]    |
[INFO] [stderr] 29 |             Some(ref val) => Some(val.as_slice()),
[INFO] [stderr]    |                                       ^^^^^^^^ method not found in `&std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `std::option::Option<&str>` doesn't implement `std::fmt::Display`
[INFO] [stderr]   --> src/driver.rs:37:37
[INFO] [stderr]    |
[INFO] [stderr] 37 |         println!("Using config file: {}", opts.config_file());
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^ `std::option::Option<&str>` cannot be formatted with the default formatter
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Display` is not implemented for `std::option::Option<&str>`
[INFO] [stderr]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stderr]    = note: required by `std::fmt::Display::fmt`
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0432, E0599, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `overseer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1da76490d62d880a3dee594a6b2c6f87ffe19c585d18ab05831b677bd399261b"`
[INFO] running `"docker" "rm" "-f" "1da76490d62d880a3dee594a6b2c6f87ffe19c585d18ab05831b677bd399261b"`
[INFO] [stdout] 1da76490d62d880a3dee594a6b2c6f87ffe19c585d18ab05831b677bd399261b