[INFO] fetching crate interpreter 0.0.0...
[INFO] testing interpreter-0.0.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate interpreter 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate interpreter 0.0.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "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] c0d4b4bfa9efa6ebae9576176fb97dce66a8a4ddfbd88093986864be0e77014a
[INFO] running `Command { std: "docker" "start" "-a" "c0d4b4bfa9efa6ebae9576176fb97dce66a8a4ddfbd88093986864be0e77014a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0d4b4bfa9efa6ebae9576176fb97dce66a8a4ddfbd88093986864be0e77014a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0d4b4bfa9efa6ebae9576176fb97dce66a8a4ddfbd88093986864be0e77014a", kill_on_drop: false }`
[INFO] [stdout] c0d4b4bfa9efa6ebae9576176fb97dce66a8a4ddfbd88093986864be0e77014a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5429b2a354eeecd379f362fdaefa81521fa4bae76cbc9875f7a1366a784b3c9f
[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" "5429b2a354eeecd379f362fdaefa81521fa4bae76cbc9875f7a1366a784b3c9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling interpreter v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "5429b2a354eeecd379f362fdaefa81521fa4bae76cbc9875f7a1366a784b3c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5429b2a354eeecd379f362fdaefa81521fa4bae76cbc9875f7a1366a784b3c9f", kill_on_drop: false }`
[INFO] [stdout] 5429b2a354eeecd379f362fdaefa81521fa4bae76cbc9875f7a1366a784b3c9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98786a2f6c7af5ad3f7a6b8be573bbc5dda3b2b70fdec693b9517efa573d105b
[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" "98786a2f6c7af5ad3f7a6b8be573bbc5dda3b2b70fdec693b9517efa573d105b", kill_on_drop: false }`
[INFO] [stderr]    Compiling interpreter v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "98786a2f6c7af5ad3f7a6b8be573bbc5dda3b2b70fdec693b9517efa573d105b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98786a2f6c7af5ad3f7a6b8be573bbc5dda3b2b70fdec693b9517efa573d105b", kill_on_drop: false }`
[INFO] [stdout] 98786a2f6c7af5ad3f7a6b8be573bbc5dda3b2b70fdec693b9517efa573d105b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 49301228b0d3ca537ad9dd602fe2dca403275c7993ed5e6b98af52eee5ff76a4
[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" "49301228b0d3ca537ad9dd602fe2dca403275c7993ed5e6b98af52eee5ff76a4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/interpreter-b5a6d2e8b4a67aef
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests interpreter
[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; finished in 0.01s
[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" "49301228b0d3ca537ad9dd602fe2dca403275c7993ed5e6b98af52eee5ff76a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49301228b0d3ca537ad9dd602fe2dca403275c7993ed5e6b98af52eee5ff76a4", kill_on_drop: false }`
[INFO] [stdout] 49301228b0d3ca537ad9dd602fe2dca403275c7993ed5e6b98af52eee5ff76a4