[INFO] cloning repository https://github.com/zesterer/funkicrab [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zesterer/funkicrab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Ffunkicrab"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Ffunkicrab'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 98528cc593478391a0ef0f91ff533592cf263914 [INFO] testing zesterer/funkicrab against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Ffunkicrab" "/workspace/builds/worker-5/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zesterer/funkicrab 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/zesterer/funkicrab [INFO] finished tweaking git repo https://github.com/zesterer/funkicrab [INFO] tweaked toml for git repo https://github.com/zesterer/funkicrab written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/zesterer/funkicrab 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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] fc6a840c3e3587808b9db86a81b511a5663be37854a26fa39f08732faa8708ba [INFO] running `"docker" "start" "-a" "fc6a840c3e3587808b9db86a81b511a5663be37854a26fa39f08732faa8708ba"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling bimap v0.1.5 [INFO] [stderr] Compiling funkicrab v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(label_break_value)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::Error` [INFO] [stderr] --> src/exec.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use super::Error; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/hir.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `iter::FromIterator` [INFO] [stderr] --> src/llir.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | iter::FromIterator, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/llir.rs:242:20 [INFO] [stderr] | [INFO] [stderr] 242 | if (if let CellAccessInfo::Exactly(cells) = &cell_reads { [INFO] [stderr] | ____________________^ [INFO] [stderr] 243 | | cells.len() == 0 [INFO] [stderr] 244 | | } else { [INFO] [stderr] 245 | | false [INFO] [stderr] 246 | | }) { [INFO] [stderr] | |__________________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 242 | if if let CellAccessInfo::Exactly(cells) = &cell_reads { [INFO] [stderr] 243 | cells.len() == 0 [INFO] [stderr] 244 | } else { [INFO] [stderr] 245 | false [INFO] [stderr] 246 | } { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused import: `CellAccessInfo` [INFO] [stderr] --> src/opt.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | CellAccessInfo, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/opt.rs:73:5 [INFO] [stderr] | [INFO] [stderr] 65 | / loop { [INFO] [stderr] 66 | | let new_prog = optimise_program(prog.clone()); [INFO] [stderr] 67 | | if prog == new_prog { [INFO] [stderr] 68 | | return prog; [INFO] [stderr] ... | [INFO] [stderr] 71 | | } [INFO] [stderr] 72 | | } [INFO] [stderr] | |_____- any code following this expression is unreachable [INFO] [stderr] 73 | prog [INFO] [stderr] | ^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error; 6 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `funkicrab`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "fc6a840c3e3587808b9db86a81b511a5663be37854a26fa39f08732faa8708ba"` [INFO] running `"docker" "rm" "-f" "fc6a840c3e3587808b9db86a81b511a5663be37854a26fa39f08732faa8708ba"` [INFO] [stdout] fc6a840c3e3587808b9db86a81b511a5663be37854a26fa39f08732faa8708ba