[INFO] cloning repository https://github.com/ruckc/mcr
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruckc/mcr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruckc%2Fmcr"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruckc%2Fmcr'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fc0734752846b14b3828d56403c693cc03db35da
[INFO] checking ruckc/mcr against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruckc%2Fmcr" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ruckc/mcr on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ruckc/mcr
[INFO] finished tweaking git repo https://github.com/ruckc/mcr
[INFO] tweaked toml for git repo https://github.com/ruckc/mcr written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ruckc/mcr already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b1bd4f681638a497acfde3a9c8968742ab912b5aafe9dabac39356b8ba5e60dc
[INFO] running `"docker" "start" "-a" "b1bd4f681638a497acfde3a9c8968742ab912b5aafe9dabac39356b8ba5e60dc"`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking hexdump v0.1.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking syslog v4.0.1
[INFO] [stderr]     Checking clokwerk v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking mcr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected one of `.`, `;`, `?`, or an operator, found `let`
[INFO] [stderr]   --> src/config.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |         .about("Sets up multicast routing for pure IGMP (Layer 2) management.")
[INFO] [stderr]    |                                                                                - help: a semicolon may be missing here
[INFO] [stderr] ...
[INFO] [stderr] 21 |     let config_ini = ini::Ini::load_from_file(configfile.expect("No configuration file specified")).unwrap()    ;
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `.`, `;`, `?`, or an operator, found `let`
[INFO] [stderr]   --> src/config.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |         .about("Sets up multicast routing for pure IGMP (Layer 2) management.")
[INFO] [stderr]    |                                                                                - help: a semicolon may be missing here
[INFO] [stderr] ...
[INFO] [stderr] 21 |     let config_ini = ini::Ini::load_from_file(configfile.expect("No configuration file specified")).unwrap()    ;
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `mcr`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mcr`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b1bd4f681638a497acfde3a9c8968742ab912b5aafe9dabac39356b8ba5e60dc"`
[INFO] running `"docker" "rm" "-f" "b1bd4f681638a497acfde3a9c8968742ab912b5aafe9dabac39356b8ba5e60dc"`
[INFO] [stdout] b1bd4f681638a497acfde3a9c8968742ab912b5aafe9dabac39356b8ba5e60dc