[INFO] cloning repository https://github.com/codebje/vtrs20
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codebje/vtrs20" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodebje%2Fvtrs20", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodebje%2Fvtrs20'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee1f69cee0624577b449a39b9a9a44558f14ca1f
[INFO] checking codebje/vtrs20 against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodebje%2Fvtrs20" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/codebje/vtrs20 on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/codebje/vtrs20
[INFO] finished tweaking git repo https://github.com/codebje/vtrs20
[INFO] tweaked toml for git repo https://github.com/codebje/vtrs20 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/codebje/vtrs20 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "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] b4381f7fe7877b32fe08192c2ab6306653d6aeb63cacdeede19a29b8cbe0e795
[INFO] running `Command { std: "docker" "start" "-a" "b4381f7fe7877b32fe08192c2ab6306653d6aeb63cacdeede19a29b8cbe0e795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4381f7fe7877b32fe08192c2ab6306653d6aeb63cacdeede19a29b8cbe0e795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4381f7fe7877b32fe08192c2ab6306653d6aeb63cacdeede19a29b8cbe0e795", kill_on_drop: false }`
[INFO] [stdout] b4381f7fe7877b32fe08192c2ab6306653d6aeb63cacdeede19a29b8cbe0e795
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdd8af99a676b085319f0fd56d89aad582a3a27e1959cbe5a2b6cb4ae059890e
[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" "fdd8af99a676b085319f0fd56d89aad582a3a27e1959cbe5a2b6cb4ae059890e", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking vtrs20 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `flags`
[INFO] [stdout]    --> src/cpu/mod.rs:127:12
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn flags(&self) -> Flags {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/ram.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn write(&self, address: u32, data: &[u8]) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `load_file`
[INFO] [stdout]   --> src/ram.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn load_file(&self, address: u32, filename: &str) -> Result<(), std::io::Error> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "fdd8af99a676b085319f0fd56d89aad582a3a27e1959cbe5a2b6cb4ae059890e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdd8af99a676b085319f0fd56d89aad582a3a27e1959cbe5a2b6cb4ae059890e", kill_on_drop: false }`
[INFO] [stdout] fdd8af99a676b085319f0fd56d89aad582a3a27e1959cbe5a2b6cb4ae059890e