[INFO] updating cached repository https://github.com/FuSoftware/Rust-Parser
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f0a59b67f65ad3e05ce00ffd36fac958dbb77e45
[INFO] testing FuSoftware/Rust-Parser against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuSoftware%2FRust-Parser" "work/builds/worker-8/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FuSoftware/Rust-Parser on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/FuSoftware/Rust-Parser
[INFO] finished tweaking git repo https://github.com/FuSoftware/Rust-Parser
[INFO] tweaked toml for git repo https://github.com/FuSoftware/Rust-Parser written to work/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/FuSoftware/Rust-Parser already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "build" "--frozen"`
[INFO] [stdout] b15f4933413764bc2aba346f8269896f535f2e90aca207cf72a3a57908fff714
[INFO] running `"docker" "start" "-a" "b15f4933413764bc2aba346f8269896f535f2e90aca207cf72a3a57908fff714"`
[INFO] [stderr]    Compiling rust_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `peek_one`
[INFO] [stderr]   --> src/parsing/lexer.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn peek_one<T>(&mut self, c: char, v: T) -> Option<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `"docker" "inspect" "b15f4933413764bc2aba346f8269896f535f2e90aca207cf72a3a57908fff714"`
[INFO] running `"docker" "rm" "-f" "b15f4933413764bc2aba346f8269896f535f2e90aca207cf72a3a57908fff714"`
[INFO] [stdout] b15f4933413764bc2aba346f8269896f535f2e90aca207cf72a3a57908fff714
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 96753a38b1b356451994d16cffc4e965ad02c77dd7b57fbc0bbba8cb1bfb4a2e
[INFO] running `"docker" "start" "-a" "96753a38b1b356451994d16cffc4e965ad02c77dd7b57fbc0bbba8cb1bfb4a2e"`
[INFO] [stderr]    Compiling rust_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `peek_one`
[INFO] [stderr]   --> src/parsing/lexer.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn peek_one<T>(&mut self, c: char, v: T) -> Option<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "96753a38b1b356451994d16cffc4e965ad02c77dd7b57fbc0bbba8cb1bfb4a2e"`
[INFO] running `"docker" "rm" "-f" "96753a38b1b356451994d16cffc4e965ad02c77dd7b57fbc0bbba8cb1bfb4a2e"`
[INFO] [stdout] 96753a38b1b356451994d16cffc4e965ad02c77dd7b57fbc0bbba8cb1bfb4a2e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 5e8db2be64ec82ad367675190a8a58f062a5e8fd293c642cc9cefa8f1829dcd2
[INFO] running `"docker" "start" "-a" "5e8db2be64ec82ad367675190a8a58f062a5e8fd293c642cc9cefa8f1829dcd2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_compiler-2ac1f15bd7311508
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_compiler-eea93edcdb248b9a
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_compiler
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5e8db2be64ec82ad367675190a8a58f062a5e8fd293c642cc9cefa8f1829dcd2"`
[INFO] running `"docker" "rm" "-f" "5e8db2be64ec82ad367675190a8a58f062a5e8fd293c642cc9cefa8f1829dcd2"`
[INFO] [stdout] 5e8db2be64ec82ad367675190a8a58f062a5e8fd293c642cc9cefa8f1829dcd2