[INFO] fetching crate pprexec 0.2.2...
[INFO] testing pprexec-0.2.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate pprexec 0.2.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate pprexec 0.2.2 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 pprexec 0.2.2
[INFO] finished tweaking crates.io crate pprexec 0.2.2
[INFO] tweaked toml for crates.io crate pprexec 0.2.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate pprexec 0.2.2 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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] 02fdc74ae5ea002e4d9b64a1322ad145357b363eceda9e416d2f6205c9f23227
[INFO] running `Command { std: "docker" "start" "-a" "02fdc74ae5ea002e4d9b64a1322ad145357b363eceda9e416d2f6205c9f23227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02fdc74ae5ea002e4d9b64a1322ad145357b363eceda9e416d2f6205c9f23227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02fdc74ae5ea002e4d9b64a1322ad145357b363eceda9e416d2f6205c9f23227", kill_on_drop: false }`
[INFO] [stdout] 02fdc74ae5ea002e4d9b64a1322ad145357b363eceda9e416d2f6205c9f23227
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] 2002872905da981420ee7f1ea21c4ce16a8a4fe30a1816a9f8e94cbc124b63ee
[INFO] running `Command { std: "docker" "start" "-a" "2002872905da981420ee7f1ea21c4ce16a8a4fe30a1816a9f8e94cbc124b63ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]    Compiling time v0.2.17
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling time-macros v0.1.0
[INFO] [stderr]    Compiling myutil v0.2.4
[INFO] [stderr]    Compiling pin-project v0.4.23
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling pprexec v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `Command { std: "docker" "inspect" "2002872905da981420ee7f1ea21c4ce16a8a4fe30a1816a9f8e94cbc124b63ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2002872905da981420ee7f1ea21c4ce16a8a4fe30a1816a9f8e94cbc124b63ee", kill_on_drop: false }`
[INFO] [stdout] 2002872905da981420ee7f1ea21c4ce16a8a4fe30a1816a9f8e94cbc124b63ee
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc52b33d7be11352d08341a052430a5d52652df0616d56e80dbf517c9d99862d
[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" "cc52b33d7be11352d08341a052430a5d52652df0616d56e80dbf517c9d99862d", kill_on_drop: false }`
[INFO] [stderr]    Compiling pprexec v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.64s
[INFO] running `Command { std: "docker" "inspect" "cc52b33d7be11352d08341a052430a5d52652df0616d56e80dbf517c9d99862d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc52b33d7be11352d08341a052430a5d52652df0616d56e80dbf517c9d99862d", kill_on_drop: false }`
[INFO] [stdout] cc52b33d7be11352d08341a052430a5d52652df0616d56e80dbf517c9d99862d
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] be80c6e36115fc00888c3771bf6fb354a67ab882087086b85026df7ebc3cf4d7
[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" "be80c6e36115fc00888c3771bf6fb354a67ab882087086b85026df7ebc3cf4d7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[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] [stderr]      Running /opt/rustwide/target/debug/deps/pprexec-25938255098fa083
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/pprexec_cli-dcf092f54fcf0b88
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/pprexec_daemon-3da1f06af6924046
[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] [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] [stderr]      Running /opt/rustwide/target/debug/deps/integration-ac535771490c6976
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests pprexec
[INFO] [stdout] test i_pprexec ... 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" "be80c6e36115fc00888c3771bf6fb354a67ab882087086b85026df7ebc3cf4d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be80c6e36115fc00888c3771bf6fb354a67ab882087086b85026df7ebc3cf4d7", kill_on_drop: false }`
[INFO] [stdout] be80c6e36115fc00888c3771bf6fb354a67ab882087086b85026df7ebc3cf4d7