[INFO] fetching crate skimmer 0.0.2...
[INFO] testing skimmer-0.0.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate skimmer 0.0.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate skimmer 0.0.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate skimmer 0.0.2
[INFO] finished tweaking crates.io crate skimmer 0.0.2
[INFO] tweaked toml for crates.io crate skimmer 0.0.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 9227d1d51118e2d0ca108cbbaaa80c8e478f43f1842b46debc61d6a2e3224ccf
[INFO] running `Command { std: "docker" "start" "-a" "9227d1d51118e2d0ca108cbbaaa80c8e478f43f1842b46debc61d6a2e3224ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9227d1d51118e2d0ca108cbbaaa80c8e478f43f1842b46debc61d6a2e3224ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9227d1d51118e2d0ca108cbbaaa80c8e478f43f1842b46debc61d6a2e3224ccf", kill_on_drop: false }`
[INFO] [stdout] 9227d1d51118e2d0ca108cbbaaa80c8e478f43f1842b46debc61d6a2e3224ccf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] ec5258f372b92eb0baff6e5c2a4659f0750a92213b62c1bee0fbf4cd1288dac7
[INFO] running `Command { std: "docker" "start" "-a" "ec5258f372b92eb0baff6e5c2a4659f0750a92213b62c1bee0fbf4cd1288dac7", kill_on_drop: false }`
[INFO] [stderr]    Compiling skimmer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `Command { std: "docker" "inspect" "ec5258f372b92eb0baff6e5c2a4659f0750a92213b62c1bee0fbf4cd1288dac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec5258f372b92eb0baff6e5c2a4659f0750a92213b62c1bee0fbf4cd1288dac7", kill_on_drop: false }`
[INFO] [stdout] ec5258f372b92eb0baff6e5c2a4659f0750a92213b62c1bee0fbf4cd1288dac7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 147fd051cfd531c8b505391c2aeeeee3d252d33e80a1c0b02950b8da42e579c1
[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" "147fd051cfd531c8b505391c2aeeeee3d252d33e80a1c0b02950b8da42e579c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling skimmer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "147fd051cfd531c8b505391c2aeeeee3d252d33e80a1c0b02950b8da42e579c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "147fd051cfd531c8b505391c2aeeeee3d252d33e80a1c0b02950b8da42e579c1", kill_on_drop: false }`
[INFO] [stdout] 147fd051cfd531c8b505391c2aeeeee3d252d33e80a1c0b02950b8da42e579c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 05bab550ff1c029843285881f7d4734f9f9dd3d6be83cf3951398e0b41a4f224
[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" "05bab550ff1c029843285881f7d4734f9f9dd3d6be83cf3951398e0b41a4f224", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/skimmer-a3262dd5670b5fe1)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests skimmer
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "05bab550ff1c029843285881f7d4734f9f9dd3d6be83cf3951398e0b41a4f224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05bab550ff1c029843285881f7d4734f9f9dd3d6be83cf3951398e0b41a4f224", kill_on_drop: false }`
[INFO] [stdout] 05bab550ff1c029843285881f7d4734f9f9dd3d6be83cf3951398e0b41a4f224