[INFO] cloning repository https://github.com/Zhihang-Liu/cardlang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Zhihang-Liu/cardlang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZhihang-Liu%2Fcardlang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZhihang-Liu%2Fcardlang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66e12728805185101d0c48c200c78aea4d50b8ae
[INFO] checking Zhihang-Liu/cardlang against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZhihang-Liu%2Fcardlang" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Zhihang-Liu/cardlang on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Zhihang-Liu/cardlang
[INFO] finished tweaking git repo https://github.com/Zhihang-Liu/cardlang
[INFO] tweaked toml for git repo https://github.com/Zhihang-Liu/cardlang written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Zhihang-Liu/cardlang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "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] 3edee8f90ec0e7fe6e463a3eced4628a73bbb50d9db3af95617f14d55d43c5da
[INFO] running `Command { std: "docker" "start" "-a" "3edee8f90ec0e7fe6e463a3eced4628a73bbb50d9db3af95617f14d55d43c5da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3edee8f90ec0e7fe6e463a3eced4628a73bbb50d9db3af95617f14d55d43c5da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3edee8f90ec0e7fe6e463a3eced4628a73bbb50d9db3af95617f14d55d43c5da", kill_on_drop: false }`
[INFO] [stdout] 3edee8f90ec0e7fe6e463a3eced4628a73bbb50d9db3af95617f14d55d43c5da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3731316f7b90f88d8c843925c43c488f7223b46981d7ccc82c01b21e47102d0e
[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" "3731316f7b90f88d8c843925c43c488f7223b46981d7ccc82c01b21e47102d0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking cardlang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `CardParser`
[INFO] [stdout]  --> src/parser.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct CardParser;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_card_parser`
[INFO] [stdout]   --> src/parser.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn parse_card_parser(input: &str) -> Result<(), Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CardParser`
[INFO] [stdout]  --> src/parser.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct CardParser;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_card_parser`
[INFO] [stdout]   --> src/parser.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn parse_card_parser(input: &str) -> Result<(), Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.99s
[INFO] running `Command { std: "docker" "inspect" "3731316f7b90f88d8c843925c43c488f7223b46981d7ccc82c01b21e47102d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3731316f7b90f88d8c843925c43c488f7223b46981d7ccc82c01b21e47102d0e", kill_on_drop: false }`
[INFO] [stdout] 3731316f7b90f88d8c843925c43c488f7223b46981d7ccc82c01b21e47102d0e