[INFO] fetching crate interpreter 0.0.0...
[INFO] testing interpreter-0.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate interpreter 0.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate interpreter 0.0.0 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 interpreter 0.0.0
[INFO] finished tweaking crates.io crate interpreter 0.0.0
[INFO] tweaked toml for crates.io crate interpreter 0.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 5e03aace95f0721c274cb9e7abb54a9c8179b4c907c7797c09f18fa965c0f466
[INFO] running `Command { std: "docker" "start" "-a" "5e03aace95f0721c274cb9e7abb54a9c8179b4c907c7797c09f18fa965c0f466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e03aace95f0721c274cb9e7abb54a9c8179b4c907c7797c09f18fa965c0f466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e03aace95f0721c274cb9e7abb54a9c8179b4c907c7797c09f18fa965c0f466", kill_on_drop: false }`
[INFO] [stdout] 5e03aace95f0721c274cb9e7abb54a9c8179b4c907c7797c09f18fa965c0f466
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d72607e747f584ceaa39a8cbefb694b93b683a6d36f08e4b3380ec55cf365b30
[INFO] running `Command { std: "docker" "start" "-a" "d72607e747f584ceaa39a8cbefb694b93b683a6d36f08e4b3380ec55cf365b30", kill_on_drop: false }`
[INFO] [stderr]    Compiling interpreter v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "d72607e747f584ceaa39a8cbefb694b93b683a6d36f08e4b3380ec55cf365b30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72607e747f584ceaa39a8cbefb694b93b683a6d36f08e4b3380ec55cf365b30", kill_on_drop: false }`
[INFO] [stdout] d72607e747f584ceaa39a8cbefb694b93b683a6d36f08e4b3380ec55cf365b30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 3deaf3eabe896f2c9aef2985b3ca76f2f2da11c484b9e6e4fc762f1d19adce91
[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" "3deaf3eabe896f2c9aef2985b3ca76f2f2da11c484b9e6e4fc762f1d19adce91", kill_on_drop: false }`
[INFO] [stderr]    Compiling interpreter v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "3deaf3eabe896f2c9aef2985b3ca76f2f2da11c484b9e6e4fc762f1d19adce91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3deaf3eabe896f2c9aef2985b3ca76f2f2da11c484b9e6e4fc762f1d19adce91", kill_on_drop: false }`
[INFO] [stdout] 3deaf3eabe896f2c9aef2985b3ca76f2f2da11c484b9e6e4fc762f1d19adce91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 6e87c19a4b21374996fe4ade191e03ae60a608057a79919023ea19ada0bd7f8a
[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" "6e87c19a4b21374996fe4ade191e03ae60a608057a79919023ea19ada0bd7f8a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/interpreter-31528f944fefefaa
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests interpreter
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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] running `Command { std: "docker" "inspect" "6e87c19a4b21374996fe4ade191e03ae60a608057a79919023ea19ada0bd7f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e87c19a4b21374996fe4ade191e03ae60a608057a79919023ea19ada0bd7f8a", kill_on_drop: false }`
[INFO] [stdout] 6e87c19a4b21374996fe4ade191e03ae60a608057a79919023ea19ada0bd7f8a