[INFO] cloning repository https://github.com/Techno-coder/lucent
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Techno-coder/lucent" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechno-coder%2Flucent", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechno-coder%2Flucent'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5c95b296c80b0fd8e829b9ff3cf6a74717e08ca
[INFO] testing Techno-coder/lucent against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechno-coder%2Flucent" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Techno-coder/lucent on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Techno-coder/lucent
[INFO] finished tweaking git repo https://github.com/Techno-coder/lucent
[INFO] tweaked toml for git repo https://github.com/Techno-coder/lucent written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Techno-coder/lucent already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded autocfg v1.0.0
[INFO] [stderr]   Downloaded scroll_derive v0.10.2
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded syn v1.0.33
[INFO] [stderr]   Downloaded smallvec v1.4.0
[INFO] [stderr]   Downloaded parking_lot_core v0.7.2
[INFO] [stderr]   Downloaded libc v0.2.71
[INFO] [stderr]   Downloaded scopeguard v1.1.0
[INFO] [stderr]   Downloaded aho-corasick v0.7.10
[INFO] [stderr]   Downloaded unicode-xid v0.2.1
[INFO] [stderr]   Downloaded cc v1.0.54
[INFO] [stderr]   Downloaded proc-macro2 v1.0.18
[INFO] [stderr]   Downloaded scroll v0.10.1
[INFO] [stderr]   Downloaded hermit-abi v0.1.13
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded termcolor v1.1.0
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.16
[INFO] [stderr]   Downloaded num_cpus v1.13.0
[INFO] [stderr]   Downloaded memchr v2.3.3
[INFO] [stderr]   Downloaded const-random-macro v0.1.8
[INFO] [stderr]   Downloaded thread_local v1.0.1
[INFO] [stderr]   Downloaded getrandom v0.1.14
[INFO] [stderr]   Downloaded wasi v0.9.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded const-random v0.1.8
[INFO] [stderr]   Downloaded plain v0.2.3
[INFO] [stderr]   Downloaded ahash v0.3.5
[INFO] [stderr]   Downloaded static_assertions v0.3.4
[INFO] [stderr]   Downloaded lock_api v0.3.4
[INFO] [stderr]   Downloaded indexmap v1.4.0
[INFO] [stderr]   Downloaded codespan-reporting v0.9.4
[INFO] [stderr]   Downloaded parking_lot v0.10.2
[INFO] [stderr]   Downloaded codespan v0.9.4
[INFO] [stderr]   Downloaded dashmap v3.11.2
[INFO] [stderr]   Downloaded regex v1.3.7
[INFO] [stderr]   Downloaded tree-sitter v0.16.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] [stderr]   Downloaded goblin v0.2.3
[INFO] [stderr]   Downloaded iced-x86 v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 97eb91e134321bbe837731128452ff7afea69c17b71a2a30197ccc799528cea9
[INFO] running `Command { std: "docker" "start" "-a" "97eb91e134321bbe837731128452ff7afea69c17b71a2a30197ccc799528cea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97eb91e134321bbe837731128452ff7afea69c17b71a2a30197ccc799528cea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97eb91e134321bbe837731128452ff7afea69c17b71a2a30197ccc799528cea9", kill_on_drop: false }`
[INFO] [stdout] 97eb91e134321bbe837731128452ff7afea69c17b71a2a30197ccc799528cea9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdbee70172269f161042ed669882003ea4f6fa2553eac0c5afe8a0d0df3acb70
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cdbee70172269f161042ed669882003ea4f6fa2553eac0c5afe8a0d0df3acb70", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling static_assertions v0.3.4
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling iced-x86 v1.2.0
[INFO] [stderr]    Compiling codespan-reporting v0.9.4
[INFO] [stderr]    Compiling codespan v0.9.4
[INFO] [stderr]    Compiling tree-sitter v0.16.0
[INFO] [stderr]    Compiling lucent v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr] warning: In file included from tree-sitter-lucent/src/parser.c:1:
[INFO] [stderr] warning: tree-sitter-lucent/src/parser.c: In function 'ts_lex_keywords':
[INFO] [stderr] warning: tree-sitter-lucent/src/tree_sitter/parser.h:131:8: warning: variable 'eof' set but not used [-Wunused-but-set-variable]
[INFO] [stderr] warning:   131 |   bool eof = false;             \
[INFO] [stderr] warning:       |        ^~~
[INFO] [stderr] warning: tree-sitter-lucent/src/parser.c:2471:3: note: in expansion of macro 'START_LEXER'
[INFO] [stderr] warning:  2471 |   START_LEXER();
[INFO] [stderr] warning:       |   ^~~~~~~~~~~
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling const-random v0.1.8
[INFO] [stderr]    Compiling ahash v0.3.5
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling dashmap v3.11.2
[INFO] [stderr]    Compiling scroll_derive v0.10.2
[INFO] [stderr]    Compiling scroll v0.10.1
[INFO] [stderr]    Compiling goblin v0.2.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(option_unwrap_none)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(entry_insert)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(concat_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(bindings_after_at)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(array_value_iter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: In file included from tree-sitter-lucent/src/parser.c:1:
[INFO] [stderr] warning: tree-sitter-lucent/src/parser.c: In function 'ts_lex_keywords':
[INFO] [stderr] warning: tree-sitter-lucent/src/tree_sitter/parser.h:131:8: warning: variable 'eof' set but not used [-Wunused-but-set-variable]
[INFO] [stderr] warning:   131 |   bool eof = false;             \
[INFO] [stderr] warning:       |        ^~~
[INFO] [stderr] warning: tree-sitter-lucent/src/parser.c:2471:3: note: in expansion of macro 'START_LEXER'
[INFO] [stderr] warning:  2471 |   START_LEXER();
[INFO] [stderr] warning:       |   ^~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `lucent`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "cdbee70172269f161042ed669882003ea4f6fa2553eac0c5afe8a0d0df3acb70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdbee70172269f161042ed669882003ea4f6fa2553eac0c5afe8a0d0df3acb70", kill_on_drop: false }`
[INFO] [stdout] cdbee70172269f161042ed669882003ea4f6fa2553eac0c5afe8a0d0df3acb70