[INFO] cloning repository https://github.com/0b01/reggae-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0b01/reggae-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0b01%2Freggae-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0b01%2Freggae-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6c533c2a958a2eca0addd5a373fd9dbc6e9bdcc
[INFO] checking 0b01/reggae-lang against master#119d2a1a98fe87d4ae6cabf12134a0ef2fb95851 for pr-75180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0b01%2Freggae-lang" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0b01/reggae-lang on toolchain 119d2a1a98fe87d4ae6cabf12134a0ef2fb95851
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/0b01/reggae-lang
[INFO] finished tweaking git repo https://github.com/0b01/reggae-lang
[INFO] tweaked toml for git repo https://github.com/0b01/reggae-lang written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/0b01/reggae-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline v6.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f078d16c183c5c6845ad1b4dbece1daa01d8fb48cbdd2bb7aa76689255758037
[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" "f078d16c183c5c6845ad1b4dbece1daa01d8fb48cbdd2bb7aa76689255758037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f078d16c183c5c6845ad1b4dbece1daa01d8fb48cbdd2bb7aa76689255758037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f078d16c183c5c6845ad1b4dbece1daa01d8fb48cbdd2bb7aa76689255758037", kill_on_drop: false }`
[INFO] [stdout] f078d16c183c5c6845ad1b4dbece1daa01d8fb48cbdd2bb7aa76689255758037
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 5392f1fc094e7ebb9803cdef770492e03938683e6fed8990c1d0b9092a75bd24
[INFO] running `Command { std: "docker" "start" "-a" "5392f1fc094e7ebb9803cdef770492e03938683e6fed8990c1d0b9092a75bd24", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rustyline v6.0.0
[INFO] [stderr]     Checking reggae v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `with_index`
[INFO] [stdout]   --> src/lex.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn with_index(msg: &'static str, index: usize) -> LexError {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_index`
[INFO] [stdout]   --> src/lex.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn with_index(msg: &'static str, index: usize) -> LexError {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.37s
[INFO] running `Command { std: "docker" "inspect" "5392f1fc094e7ebb9803cdef770492e03938683e6fed8990c1d0b9092a75bd24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5392f1fc094e7ebb9803cdef770492e03938683e6fed8990c1d0b9092a75bd24", kill_on_drop: false }`
[INFO] [stdout] 5392f1fc094e7ebb9803cdef770492e03938683e6fed8990c1d0b9092a75bd24