[INFO] cloning repository https://github.com/LanaCoyote/rust-irc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LanaCoyote/rust-irc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLanaCoyote%2Frust-irc"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLanaCoyote%2Frust-irc'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 62e820511724c6cb02aa806bd7bff427f2a57756
[INFO] testing LanaCoyote/rust-irc against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLanaCoyote%2Frust-irc" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LanaCoyote/rust-irc on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/LanaCoyote/rust-irc
[INFO] finished tweaking git repo https://github.com/LanaCoyote/rust-irc
[INFO] tweaked toml for git repo https://github.com/LanaCoyote/rust-irc written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/LanaCoyote/rust-irc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (regex) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (regex) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2020-06-03" "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] 34c98fa10af8977b3a2b4b8f1fb8af21ecace69c6ed9726f5f6e2d4ca09129fa
[INFO] running `"docker" "start" "-a" "34c98fa10af8977b3a2b4b8f1fb8af21ecace69c6ed9726f5f6e2d4ca09129fa"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: dependency (regex) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling rustirc v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unknown lint: `unstable`
[INFO] [stderr]  --> src/lib.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![allow(unstable)]
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::old_io`
[INFO] [stderr]  --> src/client.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::old_io as io;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ no `old_io` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::old_io`
[INFO] [stderr]  --> src/connection.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::old_io as io;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ no `old_io` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::old_io`
[INFO] [stderr]  --> src/reader.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::old_io as io;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ no `old_io` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]    --> src/info.rs:282:12
[INFO] [stderr]     |
[INFO] [stderr] 282 |   for i in range( 0, v.len( ) ) {
[INFO] [stderr]     |            ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slicing_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0223]: ambiguous associated type
[INFO] [stderr]    --> src/info.rs:304:23
[INFO] [stderr]     |
[INFO] [stderr] 304 | fn strip_colon ( s : &str::Str ) -> String {
[INFO] [stderr]     |                       ^^^^^^^^ help: use fully-qualified syntax: `<str as Trait>::Str`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0223, E0425, E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0223`.
[INFO] [stderr] error: could not compile `rustirc`.
[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: build failed
[INFO] running `"docker" "inspect" "34c98fa10af8977b3a2b4b8f1fb8af21ecace69c6ed9726f5f6e2d4ca09129fa"`
[INFO] running `"docker" "rm" "-f" "34c98fa10af8977b3a2b4b8f1fb8af21ecace69c6ed9726f5f6e2d4ca09129fa"`
[INFO] [stdout] 34c98fa10af8977b3a2b4b8f1fb8af21ecace69c6ed9726f5f6e2d4ca09129fa