[INFO] cloning repository https://github.com/mickvangelderen/incremental
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mickvangelderen/incremental" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickvangelderen%2Fincremental", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickvangelderen%2Fincremental'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80c9859a0a33af8b196256c0cf65153e447f48ca
[INFO] checking mickvangelderen/incremental against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickvangelderen%2Fincremental" "/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/mickvangelderen/incremental on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mickvangelderen/incremental
[INFO] finished tweaking git repo https://github.com/mickvangelderen/incremental
[INFO] tweaked toml for git repo https://github.com/mickvangelderen/incremental written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mickvangelderen/incremental already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "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" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f601b9ec07afce5f984269e40cc43a58eced11bbb8ceccb50d033ed4e9a92f9
[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" "6f601b9ec07afce5f984269e40cc43a58eced11bbb8ceccb50d033ed4e9a92f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f601b9ec07afce5f984269e40cc43a58eced11bbb8ceccb50d033ed4e9a92f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f601b9ec07afce5f984269e40cc43a58eced11bbb8ceccb50d033ed4e9a92f9", kill_on_drop: false }`
[INFO] [stdout] 6f601b9ec07afce5f984269e40cc43a58eced11bbb8ceccb50d033ed4e9a92f9
[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" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ceef719ba5b420863af1bc6410ceb93491672d1890185771b01a9ee83aa70b71
[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" "ceef719ba5b420863af1bc6410ceb93491672d1890185771b01a9ee83aa70b71", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking incremental v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/bin/asdf.rs:293:5
[INFO] [stdout]     |
[INFO] [stdout] 293 | /     std::mem::replace(
[INFO] [stdout] 294 | |         disk.files.get_mut(Path::new("a.txt")).unwrap(),
[INFO] [stdout] 295 | |         vec![
[INFO] [stdout] 296 | |             Token::Literal("a.txt:1\n".to_string()),
[INFO] [stdout] 297 | |             Token::Include(PathBuf::from("d.txt")),
[INFO] [stdout] 298 | |         ],
[INFO] [stdout] 299 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/bin/asdf.rs:293:5
[INFO] [stdout]     |
[INFO] [stdout] 293 | /     std::mem::replace(
[INFO] [stdout] 294 | |         disk.files.get_mut(Path::new("a.txt")).unwrap(),
[INFO] [stdout] 295 | |         vec![
[INFO] [stdout] 296 | |             Token::Literal("a.txt:1\n".to_string()),
[INFO] [stdout] 297 | |             Token::Include(PathBuf::from("d.txt")),
[INFO] [stdout] 298 | |         ],
[INFO] [stdout] 299 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "ceef719ba5b420863af1bc6410ceb93491672d1890185771b01a9ee83aa70b71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceef719ba5b420863af1bc6410ceb93491672d1890185771b01a9ee83aa70b71", kill_on_drop: false }`
[INFO] [stdout] ceef719ba5b420863af1bc6410ceb93491672d1890185771b01a9ee83aa70b71