[INFO] fetching crate devserver 0.1.7...
[INFO] testing devserver-0.1.7 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate devserver 0.1.7 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate devserver 0.1.7 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 devserver 0.1.7
[INFO] finished tweaking crates.io crate devserver 0.1.7
[INFO] tweaked toml for crates.io crate devserver 0.1.7 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate devserver 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded devserver_lib v0.1.7
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11e6c779e476f2b3ee9adfc5ec8c84092d89c69013fc2e9c30c2c6baa5736831
[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" "11e6c779e476f2b3ee9adfc5ec8c84092d89c69013fc2e9c30c2c6baa5736831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11e6c779e476f2b3ee9adfc5ec8c84092d89c69013fc2e9c30c2c6baa5736831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11e6c779e476f2b3ee9adfc5ec8c84092d89c69013fc2e9c30c2c6baa5736831", kill_on_drop: false }`
[INFO] [stdout] 11e6c779e476f2b3ee9adfc5ec8c84092d89c69013fc2e9c30c2c6baa5736831
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57b5a6850a243e29c81eeb63106ef8a6f8c2971bd5d5cb81674bf9d9fd71384a
[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" "57b5a6850a243e29c81eeb63106ef8a6f8c2971bd5d5cb81674bf9d9fd71384a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling filetime v0.2.8
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling inotify v0.7.0
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling notify v4.0.15
[INFO] [stderr]    Compiling devserver_lib v0.1.7
[INFO] [stderr]    Compiling devserver v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.49s
[INFO] running `Command { std: "docker" "inspect" "57b5a6850a243e29c81eeb63106ef8a6f8c2971bd5d5cb81674bf9d9fd71384a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57b5a6850a243e29c81eeb63106ef8a6f8c2971bd5d5cb81674bf9d9fd71384a", kill_on_drop: false }`
[INFO] [stdout] 57b5a6850a243e29c81eeb63106ef8a6f8c2971bd5d5cb81674bf9d9fd71384a
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3e594a2a2ec1aaad0c613d631f072221ea5e3daa4e154ac72cbb31a96b48ad5
[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" "f3e594a2a2ec1aaad0c613d631f072221ea5e3daa4e154ac72cbb31a96b48ad5", kill_on_drop: false }`
[INFO] [stderr]    Compiling devserver v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "f3e594a2a2ec1aaad0c613d631f072221ea5e3daa4e154ac72cbb31a96b48ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3e594a2a2ec1aaad0c613d631f072221ea5e3daa4e154ac72cbb31a96b48ad5", kill_on_drop: false }`
[INFO] [stdout] f3e594a2a2ec1aaad0c613d631f072221ea5e3daa4e154ac72cbb31a96b48ad5
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c333d84eb0d01999b65e4a60e565562e01eaeb2c0de235ada74ce503e40818da
[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" "c333d84eb0d01999b65e4a60e565562e01eaeb2c0de235ada74ce503e40818da", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/devserver-2fe431b2bb0f2354
[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" "c333d84eb0d01999b65e4a60e565562e01eaeb2c0de235ada74ce503e40818da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c333d84eb0d01999b65e4a60e565562e01eaeb2c0de235ada74ce503e40818da", kill_on_drop: false }`
[INFO] [stdout] c333d84eb0d01999b65e4a60e565562e01eaeb2c0de235ada74ce503e40818da