[INFO] crate gearley 0.0.4 is already in cache
[INFO] testing gearley-0.0.4 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate gearley 0.0.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate gearley 0.0.4 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 crates.io crate gearley 0.0.4
[INFO] finished tweaking crates.io crate gearley 0.0.4
[INFO] tweaked toml for crates.io crate gearley 0.0.4 written to /workspace/builds/worker-2/source/Cargo.toml
[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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 0f83daeb54661481788870b412073f3da63dcb94304a014b34f9b5260bb92cdc
[INFO] running `"docker" "start" "-a" "0f83daeb54661481788870b412073f3da63dcb94304a014b34f9b5260bb92cdc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling ref_slice v1.2.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling optional v0.5.0
[INFO] [stderr]    Compiling bit-matrix v0.6.0
[INFO] [stderr]    Compiling cfg v0.5.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling gearley v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `nop`
[INFO] [stderr]    --> src/forest/node.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     nop: NopRepr,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `nop`
[INFO] [stderr]    --> src/forest/node.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     nop: u16,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.56s
[INFO] running `"docker" "inspect" "0f83daeb54661481788870b412073f3da63dcb94304a014b34f9b5260bb92cdc"`
[INFO] running `"docker" "rm" "-f" "0f83daeb54661481788870b412073f3da63dcb94304a014b34f9b5260bb92cdc"`
[INFO] [stdout] 0f83daeb54661481788870b412073f3da63dcb94304a014b34f9b5260bb92cdc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2c182a3aec52553ce2621b16ef5d7e9d56e5613519c8d634044540338b3d2bae
[INFO] running `"docker" "start" "-a" "2c182a3aec52553ce2621b16ef5d7e9d56e5613519c8d634044540338b3d2bae"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling internship v0.6.0
[INFO] [stderr]    Compiling phf_macros v0.7.24
[INFO] [stderr] warning: field is never read: `nop`
[INFO] [stderr]    --> src/forest/node.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     nop: NopRepr,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `nop`
[INFO] [stderr]    --> src/forest/node.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     nop: u16,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling c_lexer v0.1.1
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/c_lexer-0.1.1/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(proc_macro_hygiene)]
[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 E0554`.
[INFO] [stderr] error: could not compile `c_lexer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2c182a3aec52553ce2621b16ef5d7e9d56e5613519c8d634044540338b3d2bae"`
[INFO] running `"docker" "rm" "-f" "2c182a3aec52553ce2621b16ef5d7e9d56e5613519c8d634044540338b3d2bae"`
[INFO] [stdout] 2c182a3aec52553ce2621b16ef5d7e9d56e5613519c8d634044540338b3d2bae