[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] testing mickvangelderen/incremental against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickvangelderen%2Fincremental" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mickvangelderen/incremental on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-1/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] f754a13be68bd172c44d736cf385a7e3ce68fabb314f1ffe3e44e74600ba13fc
[INFO] running `Command { std: "docker" "start" "-a" "f754a13be68bd172c44d736cf385a7e3ce68fabb314f1ffe3e44e74600ba13fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f754a13be68bd172c44d736cf385a7e3ce68fabb314f1ffe3e44e74600ba13fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f754a13be68bd172c44d736cf385a7e3ce68fabb314f1ffe3e44e74600ba13fc", kill_on_drop: false }`
[INFO] [stdout] f754a13be68bd172c44d736cf385a7e3ce68fabb314f1ffe3e44e74600ba13fc
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3486efb6f4fff364275d9b976f104f25bcb6fd66ee88d6fe02450a60e6df59c6
[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" "3486efb6f4fff364275d9b976f104f25bcb6fd66ee88d6fe02450a60e6df59c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "3486efb6f4fff364275d9b976f104f25bcb6fd66ee88d6fe02450a60e6df59c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3486efb6f4fff364275d9b976f104f25bcb6fd66ee88d6fe02450a60e6df59c6", kill_on_drop: false }`
[INFO] [stdout] 3486efb6f4fff364275d9b976f104f25bcb6fd66ee88d6fe02450a60e6df59c6
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] ee2b9d790183ad163c45b3cd93f076881476eba4f16d7e8b9038d89fa79428b5
[INFO] running `Command { std: "docker" "start" "-a" "ee2b9d790183ad163c45b3cd93f076881476eba4f16d7e8b9038d89fa79428b5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "ee2b9d790183ad163c45b3cd93f076881476eba4f16d7e8b9038d89fa79428b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee2b9d790183ad163c45b3cd93f076881476eba4f16d7e8b9038d89fa79428b5", kill_on_drop: false }`
[INFO] [stdout] ee2b9d790183ad163c45b3cd93f076881476eba4f16d7e8b9038d89fa79428b5
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1c949e50f5ad5798233b7692720d95f27e31073482cf94f9a0a976de1d90f7d2
[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" "1c949e50f5ad5798233b7692720d95f27e31073482cf94f9a0a976de1d90f7d2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/bin/asdf.rs:293:5
[INFO] [stderr]     |
[INFO] [stderr] 293 | /     std::mem::replace(
[INFO] [stderr] 294 | |         disk.files.get_mut(Path::new("a.txt")).unwrap(),
[INFO] [stderr] 295 | |         vec![
[INFO] [stderr] 296 | |             Token::Literal("a.txt:1\n".to_string()),
[INFO] [stderr] 297 | |             Token::Include(PathBuf::from("d.txt")),
[INFO] [stderr] 298 | |         ],
[INFO] [stderr] 299 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/incremental-d71a7af562568e53
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/asdf-88496b5566d6f48f
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests incremental
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1c949e50f5ad5798233b7692720d95f27e31073482cf94f9a0a976de1d90f7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c949e50f5ad5798233b7692720d95f27e31073482cf94f9a0a976de1d90f7d2", kill_on_drop: false }`
[INFO] [stdout] 1c949e50f5ad5798233b7692720d95f27e31073482cf94f9a0a976de1d90f7d2