[INFO] fetching crate empty-box 0.1.1...
[INFO] testing empty-box-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate empty-box 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate empty-box 0.1.1 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 empty-box 0.1.1
[INFO] finished tweaking crates.io crate empty-box 0.1.1
[INFO] tweaked toml for crates.io crate empty-box 0.1.1 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 62629bf7f2048fad6fa8ee7c3f93d3e7d99e1b4643d4de40c0c154c2a9a51985
[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" "62629bf7f2048fad6fa8ee7c3f93d3e7d99e1b4643d4de40c0c154c2a9a51985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62629bf7f2048fad6fa8ee7c3f93d3e7d99e1b4643d4de40c0c154c2a9a51985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62629bf7f2048fad6fa8ee7c3f93d3e7d99e1b4643d4de40c0c154c2a9a51985", kill_on_drop: false }`
[INFO] [stdout] 62629bf7f2048fad6fa8ee7c3f93d3e7d99e1b4643d4de40c0c154c2a9a51985
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 81742cd4e420d63080a7ce367987bf437f1d5f7e527f6375e49c458aef42de54
[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" "81742cd4e420d63080a7ce367987bf437f1d5f7e527f6375e49c458aef42de54", kill_on_drop: false }`
[INFO] [stderr]    Compiling empty-box v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "81742cd4e420d63080a7ce367987bf437f1d5f7e527f6375e49c458aef42de54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81742cd4e420d63080a7ce367987bf437f1d5f7e527f6375e49c458aef42de54", kill_on_drop: false }`
[INFO] [stdout] 81742cd4e420d63080a7ce367987bf437f1d5f7e527f6375e49c458aef42de54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] deeb2659f1b8fb01f199283bc43c2c1d5b03cc22275a2d1e152d6e72f3658f48
[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" "deeb2659f1b8fb01f199283bc43c2c1d5b03cc22275a2d1e152d6e72f3658f48", kill_on_drop: false }`
[INFO] [stderr]    Compiling empty-box v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "deeb2659f1b8fb01f199283bc43c2c1d5b03cc22275a2d1e152d6e72f3658f48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deeb2659f1b8fb01f199283bc43c2c1d5b03cc22275a2d1e152d6e72f3658f48", kill_on_drop: false }`
[INFO] [stdout] deeb2659f1b8fb01f199283bc43c2c1d5b03cc22275a2d1e152d6e72f3658f48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 92d1dbf2c21df973b7d221550bee9854633de41358c37e43d1cd01903ae7acf8
[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" "92d1dbf2c21df973b7d221550bee9854633de41358c37e43d1cd01903ae7acf8", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/empty_box-e6053ffa02dd335c
[INFO] [stdout] test test::drop_counter ... ok
[INFO] [stderr]    Doc-tests empty-box
[INFO] [stdout] test test::two_drop ... ok
[INFO] [stdout] test test::no_drop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "92d1dbf2c21df973b7d221550bee9854633de41358c37e43d1cd01903ae7acf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92d1dbf2c21df973b7d221550bee9854633de41358c37e43d1cd01903ae7acf8", kill_on_drop: false }`
[INFO] [stdout] 92d1dbf2c21df973b7d221550bee9854633de41358c37e43d1cd01903ae7acf8