[INFO] fetching crate dumper 0.1.0...
[INFO] testing dumper-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate dumper 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dumper 0.1.0 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 crates.io crate dumper 0.1.0
[INFO] finished tweaking crates.io crate dumper 0.1.0
[INFO] tweaked toml for crates.io crate dumper 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate dumper 0.1.0 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 46c3b37c57bfe40300171eeb33898d1f50fd97ae031d78af112bcafdbf9fb223
[INFO] running `Command { std: "docker" "start" "-a" "46c3b37c57bfe40300171eeb33898d1f50fd97ae031d78af112bcafdbf9fb223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46c3b37c57bfe40300171eeb33898d1f50fd97ae031d78af112bcafdbf9fb223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46c3b37c57bfe40300171eeb33898d1f50fd97ae031d78af112bcafdbf9fb223", kill_on_drop: false }`
[INFO] [stdout] 46c3b37c57bfe40300171eeb33898d1f50fd97ae031d78af112bcafdbf9fb223
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e2116a0414ed707c66375acfaa705cf635d15db03b7f16322fe6d8b85e99cc7
[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" "8e2116a0414ed707c66375acfaa705cf635d15db03b7f16322fe6d8b85e99cc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling dumper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "8e2116a0414ed707c66375acfaa705cf635d15db03b7f16322fe6d8b85e99cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e2116a0414ed707c66375acfaa705cf635d15db03b7f16322fe6d8b85e99cc7", kill_on_drop: false }`
[INFO] [stdout] 8e2116a0414ed707c66375acfaa705cf635d15db03b7f16322fe6d8b85e99cc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d061fa9e1392af224917b4d9805ea6228951ec9e8834e1a588fd77f19fda1b8
[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" "7d061fa9e1392af224917b4d9805ea6228951ec9e8834e1a588fd77f19fda1b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling dumper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "7d061fa9e1392af224917b4d9805ea6228951ec9e8834e1a588fd77f19fda1b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d061fa9e1392af224917b4d9805ea6228951ec9e8834e1a588fd77f19fda1b8", kill_on_drop: false }`
[INFO] [stdout] 7d061fa9e1392af224917b4d9805ea6228951ec9e8834e1a588fd77f19fda1b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] 583251df4ad79a921d8976525910aaf0e3f3835949042d7d492ea5b07c8a514b
[INFO] running `Command { std: "docker" "start" "-a" "583251df4ad79a921d8976525910aaf0e3f3835949042d7d492ea5b07c8a514b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dumper-cc7d125ba660b1ed
[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" "583251df4ad79a921d8976525910aaf0e3f3835949042d7d492ea5b07c8a514b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "583251df4ad79a921d8976525910aaf0e3f3835949042d7d492ea5b07c8a514b", kill_on_drop: false }`
[INFO] [stdout] 583251df4ad79a921d8976525910aaf0e3f3835949042d7d492ea5b07c8a514b