[INFO] cloning repository https://github.com/yufengwng/loxscript
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yufengwng/loxscript" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyufengwng%2Floxscript", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyufengwng%2Floxscript'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 60002e91534c0d980840b373cab5402d5b80f12e
[INFO] checking yufengwng/loxscript against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyufengwng%2Floxscript" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yufengwng/loxscript on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yufengwng/loxscript
[INFO] finished tweaking git repo https://github.com/yufengwng/loxscript
[INFO] tweaked toml for git repo https://github.com/yufengwng/loxscript written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/yufengwng/loxscript already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4680b02aac6ac8e85611dc63a0b6fadeaeb0f1990fe87be128d28fa86329745e
[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" "4680b02aac6ac8e85611dc63a0b6fadeaeb0f1990fe87be128d28fa86329745e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4680b02aac6ac8e85611dc63a0b6fadeaeb0f1990fe87be128d28fa86329745e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4680b02aac6ac8e85611dc63a0b6fadeaeb0f1990fe87be128d28fa86329745e", kill_on_drop: false }`
[INFO] [stdout] 4680b02aac6ac8e85611dc63a0b6fadeaeb0f1990fe87be128d28fa86329745e
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c0add0fbec2e8d3ecbe1a8b80bda34bc7dadf52291f12a7961287c7f8e8de13
[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" "3c0add0fbec2e8d3ecbe1a8b80bda34bc7dadf52291f12a7961287c7f8e8de13", 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]     Checking loxscript v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `constants_len` found for struct `bytecode::Chunk` in the current scope
[INFO] [stdout]    --> src/bytecode.rs:182:29
[INFO] [stdout]     |
[INFO] [stdout] 61  | pub struct Chunk {
[INFO] [stdout]     | ---------------- method `constants_len` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 182 |         assert_eq!(0, chunk.constants_len());
[INFO] [stdout]     |                             ^^^^^^^^^^^^^ method not found in `bytecode::Chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `constants_len` found for struct `bytecode::Chunk` in the current scope
[INFO] [stdout]    --> src/bytecode.rs:184:29
[INFO] [stdout]     |
[INFO] [stdout] 61  | pub struct Chunk {
[INFO] [stdout]     | ---------------- method `constants_len` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 184 |         assert_eq!(1, chunk.constants_len());
[INFO] [stdout]     |                             ^^^^^^^^^^^^^ method not found in `bytecode::Chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `emit_byte`
[INFO] [stdout]    --> src/compile.rs:189:8
[INFO] [stdout]     |
[INFO] [stdout] 189 |     fn emit_byte(&mut self, byte: u8) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `emit_pair`
[INFO] [stdout]    --> src/compile.rs:193:8
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn emit_pair(&mut self, byte1: u8, byte2: u8) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `loxscript`
[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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3c0add0fbec2e8d3ecbe1a8b80bda34bc7dadf52291f12a7961287c7f8e8de13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c0add0fbec2e8d3ecbe1a8b80bda34bc7dadf52291f12a7961287c7f8e8de13", kill_on_drop: false }`
[INFO] [stdout] 3c0add0fbec2e8d3ecbe1a8b80bda34bc7dadf52291f12a7961287c7f8e8de13