[INFO] updating cached repository LanaCoyote/rust-irc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LanaCoyote/rust-irc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LanaCoyote/rust-irc" "work/ex/beta-1.38-1/sources/1.37.0/gh/LanaCoyote/rust-irc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/LanaCoyote/rust-irc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LanaCoyote/rust-irc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LanaCoyote/rust-irc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LanaCoyote/rust-irc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 62e820511724c6cb02aa806bd7bff427f2a57756
[INFO] sha for GitHub repo LanaCoyote/rust-irc: 62e820511724c6cb02aa806bd7bff427f2a57756
[INFO] validating manifest of LanaCoyote/rust-irc on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of LanaCoyote/rust-irc on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing LanaCoyote/rust-irc
[INFO] finished frobbing LanaCoyote/rust-irc
[INFO] frobbed toml for LanaCoyote/rust-irc written to work/ex/beta-1.38-1/sources/1.37.0/gh/LanaCoyote/rust-irc/Cargo.toml
[INFO] started frobbing LanaCoyote/rust-irc
[INFO] finished frobbing LanaCoyote/rust-irc
[INFO] frobbed toml for LanaCoyote/rust-irc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LanaCoyote/rust-irc/Cargo.toml
[INFO] crate LanaCoyote/rust-irc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/LanaCoyote/rust-irc/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing LanaCoyote/rust-irc against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/LanaCoyote/rust-irc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 634289d099e7a9d4516df4178191a8f92ff54bc5044ee78f6eabb5363418e845
[INFO] running `"docker" "start" "-a" "634289d099e7a9d4516df4178191a8f92ff54bc5044ee78f6eabb5363418e845"`
[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 rustirc v0.1.3 (/opt/crater/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 stable 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
[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] running `"docker" "inspect" "634289d099e7a9d4516df4178191a8f92ff54bc5044ee78f6eabb5363418e845"`
[INFO] running `"docker" "rm" "-f" "634289d099e7a9d4516df4178191a8f92ff54bc5044ee78f6eabb5363418e845"`
[INFO] [stdout] 634289d099e7a9d4516df4178191a8f92ff54bc5044ee78f6eabb5363418e845