[INFO] cloning repository https://github.com/samrat/rusl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samrat/rusl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamrat%2Frusl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamrat%2Frusl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ba0f772f1cba32e0751770cb63cfc065b7a6a66
[INFO] checking samrat/rusl against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamrat%2Frusl" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samrat/rusl on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/samrat/rusl
[INFO] finished tweaking git repo https://github.com/samrat/rusl
[INFO] tweaked toml for git repo https://github.com/samrat/rusl written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/samrat/rusl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 457bc82dade5db755f0d5f4bdc2d69cf4e5f880e32e4c09ad9c731820a1475ce
[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" "457bc82dade5db755f0d5f4bdc2d69cf4e5f880e32e4c09ad9c731820a1475ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "457bc82dade5db755f0d5f4bdc2d69cf4e5f880e32e4c09ad9c731820a1475ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "457bc82dade5db755f0d5f4bdc2d69cf4e5f880e32e4c09ad9c731820a1475ce", kill_on_drop: false }`
[INFO] [stdout] 457bc82dade5db755f0d5f4bdc2d69cf4e5f880e32e4c09ad9c731820a1475ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e12e44d40a987bca1fc8990ab90ed951b394022a391b5dd571fc4689c5f8da6
[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" "2e12e44d40a987bca1fc8990ab90ed951b394022a391b5dd571fc4689c5f8da6", kill_on_drop: false }`
[INFO] [stderr]     Checking rusl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]    --> src/parser.rs:169:4
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ensure_bool`
[INFO] [stdout]    --> src/x86.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn ensure_bool(a: X86Arg) -> Vec<X86> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]    --> src/parser.rs:169:4
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ensure_bool`
[INFO] [stdout]    --> src/x86.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn ensure_bool(a: X86Arg) -> Vec<X86> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2e12e44d40a987bca1fc8990ab90ed951b394022a391b5dd571fc4689c5f8da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e12e44d40a987bca1fc8990ab90ed951b394022a391b5dd571fc4689c5f8da6", kill_on_drop: false }`
[INFO] [stdout] 2e12e44d40a987bca1fc8990ab90ed951b394022a391b5dd571fc4689c5f8da6