[INFO] fetching crate rump 0.1.0...
[INFO] testing rump-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rump 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rump 0.1.0 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 rump 0.1.0
[INFO] finished tweaking crates.io crate rump 0.1.0
[INFO] tweaked toml for crates.io crate rump 0.1.0 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] ce04ca9c175d02ece7402ebda55704726bd08fe9720dba86a12b790ce5cf88ca
[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" "ce04ca9c175d02ece7402ebda55704726bd08fe9720dba86a12b790ce5cf88ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce04ca9c175d02ece7402ebda55704726bd08fe9720dba86a12b790ce5cf88ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce04ca9c175d02ece7402ebda55704726bd08fe9720dba86a12b790ce5cf88ca", kill_on_drop: false }`
[INFO] [stdout] ce04ca9c175d02ece7402ebda55704726bd08fe9720dba86a12b790ce5cf88ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 88e6ee5ae6d21e2f7a4c8ff48f23f597cbac6cf15728e569f535881754f52e82
[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" "88e6ee5ae6d21e2f7a4c8ff48f23f597cbac6cf15728e569f535881754f52e82", kill_on_drop: false }`
[INFO] [stderr]    Compiling rump v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/cli.rs:29:30
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let parsed_options = try!(self.options.parse(args));
[INFO] [stdout]    |                              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/data.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut home = env::home_dir().unwrap();
[INFO] [stdout]    |                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.63s
[INFO] running `Command { std: "docker" "inspect" "88e6ee5ae6d21e2f7a4c8ff48f23f597cbac6cf15728e569f535881754f52e82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88e6ee5ae6d21e2f7a4c8ff48f23f597cbac6cf15728e569f535881754f52e82", kill_on_drop: false }`
[INFO] [stdout] 88e6ee5ae6d21e2f7a4c8ff48f23f597cbac6cf15728e569f535881754f52e82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6151ad25cce503bafe76ccdab6f65520acab7e2cc8a65d528e8e7bf7e81e5b2e
[INFO] running `Command { std: "docker" "start" "-a" "6151ad25cce503bafe76ccdab6f65520acab7e2cc8a65d528e8e7bf7e81e5b2e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] running `Command { std: "docker" "inspect" "6151ad25cce503bafe76ccdab6f65520acab7e2cc8a65d528e8e7bf7e81e5b2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6151ad25cce503bafe76ccdab6f65520acab7e2cc8a65d528e8e7bf7e81e5b2e", kill_on_drop: false }`
[INFO] [stdout] 6151ad25cce503bafe76ccdab6f65520acab7e2cc8a65d528e8e7bf7e81e5b2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] afb52b5c8da9c9d3aeb855b3abd9392d538eebadbb621eb3dfcb834feb446c43
[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" "afb52b5c8da9c9d3aeb855b3abd9392d538eebadbb621eb3dfcb834feb446c43", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "afb52b5c8da9c9d3aeb855b3abd9392d538eebadbb621eb3dfcb834feb446c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afb52b5c8da9c9d3aeb855b3abd9392d538eebadbb621eb3dfcb834feb446c43", kill_on_drop: false }`
[INFO] [stdout] afb52b5c8da9c9d3aeb855b3abd9392d538eebadbb621eb3dfcb834feb446c43