[INFO] fetching crate environment 0.1.1...
[INFO] testing environment-0.1.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate environment 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate environment 0.1.1 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 environment 0.1.1
[INFO] finished tweaking crates.io crate environment 0.1.1
[INFO] tweaked toml for crates.io crate environment 0.1.1 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 43439468fc32fce7067f0a4ef09c2e96985545c6788dfa39e3ef8ff666b06ff8
[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" "43439468fc32fce7067f0a4ef09c2e96985545c6788dfa39e3ef8ff666b06ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43439468fc32fce7067f0a4ef09c2e96985545c6788dfa39e3ef8ff666b06ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43439468fc32fce7067f0a4ef09c2e96985545c6788dfa39e3ef8ff666b06ff8", kill_on_drop: false }`
[INFO] [stdout] 43439468fc32fce7067f0a4ef09c2e96985545c6788dfa39e3ef8ff666b06ff8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] a743b7687208947c0383bdc7f5a99b633ce4064ec57d4c45ed18cd68c1658761
[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" "a743b7687208947c0383bdc7f5a99b633ce4064ec57d4c45ed18cd68c1658761", kill_on_drop: false }`
[INFO] [stderr]    Compiling environment v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "a743b7687208947c0383bdc7f5a99b633ce4064ec57d4c45ed18cd68c1658761", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a743b7687208947c0383bdc7f5a99b633ce4064ec57d4c45ed18cd68c1658761", kill_on_drop: false }`
[INFO] [stdout] a743b7687208947c0383bdc7f5a99b633ce4064ec57d4c45ed18cd68c1658761
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 8b8bc29b8b1bbd2d707cde7f1f1fd75afd5061ad4afad1bb2abc9c8d7ff1e90f
[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" "8b8bc29b8b1bbd2d707cde7f1f1fd75afd5061ad4afad1bb2abc9c8d7ff1e90f", kill_on_drop: false }`
[INFO] [stderr]    Compiling environment v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "8b8bc29b8b1bbd2d707cde7f1f1fd75afd5061ad4afad1bb2abc9c8d7ff1e90f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b8bc29b8b1bbd2d707cde7f1f1fd75afd5061ad4afad1bb2abc9c8d7ff1e90f", kill_on_drop: false }`
[INFO] [stdout] 8b8bc29b8b1bbd2d707cde7f1f1fd75afd5061ad4afad1bb2abc9c8d7ff1e90f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] e78635caa48064a4e63135faa23c232ea3bc9d5ccadd12c92c7f179912f7d001
[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" "e78635caa48064a4e63135faa23c232ea3bc9d5ccadd12c92c7f179912f7d001", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/environment-2b93c069ea104e2f
[INFO] [stdout] test test::in_place_mod ... ok
[INFO] [stdout] test test::empty_env ... ok
[INFO] [stdout] test test::take_ownership ... ok
[INFO] [stderr]    Doc-tests environment
[INFO] [stdout] test test::in_place_mod3 ... ok
[INFO] [stdout] test test::in_place_mod2 ... ok
[INFO] [stdout] test test::take_vec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Environment::insert (line 60) ... ok
[INFO] [stdout] test src/lib.rs - Environment::inherit (line 26) ... ok
[INFO] [stdout] test src/lib.rs - Environment::empty (line 46) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.92s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e78635caa48064a4e63135faa23c232ea3bc9d5ccadd12c92c7f179912f7d001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e78635caa48064a4e63135faa23c232ea3bc9d5ccadd12c92c7f179912f7d001", kill_on_drop: false }`
[INFO] [stdout] e78635caa48064a4e63135faa23c232ea3bc9d5ccadd12c92c7f179912f7d001