[INFO] fetching crate env-test-util 1.0.1...
[INFO] testing env-test-util-1.0.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate env-test-util 1.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate env-test-util 1.0.1 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 env-test-util 1.0.1
[INFO] finished tweaking crates.io crate env-test-util 1.0.1
[INFO] tweaked toml for crates.io crate env-test-util 1.0.1 written to /workspace/builds/worker-7/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-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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ce0116e6a99b7a9bcab650d4d10aa8912b9ef6844efa874943f84e9cdfb050f
[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" "7ce0116e6a99b7a9bcab650d4d10aa8912b9ef6844efa874943f84e9cdfb050f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ce0116e6a99b7a9bcab650d4d10aa8912b9ef6844efa874943f84e9cdfb050f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce0116e6a99b7a9bcab650d4d10aa8912b9ef6844efa874943f84e9cdfb050f", kill_on_drop: false }`
[INFO] [stdout] 7ce0116e6a99b7a9bcab650d4d10aa8912b9ef6844efa874943f84e9cdfb050f
[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" "+beta-2021-01-01" "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] 34db99ea00e65751df09cb7316c685b22a7c37e3dbc84d08b55d1d3a69551f3f
[INFO] running `Command { std: "docker" "start" "-a" "34db99ea00e65751df09cb7316c685b22a7c37e3dbc84d08b55d1d3a69551f3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling env-test-util v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "34db99ea00e65751df09cb7316c685b22a7c37e3dbc84d08b55d1d3a69551f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34db99ea00e65751df09cb7316c685b22a7c37e3dbc84d08b55d1d3a69551f3f", kill_on_drop: false }`
[INFO] [stdout] 34db99ea00e65751df09cb7316c685b22a7c37e3dbc84d08b55d1d3a69551f3f
[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" "+beta-2021-01-01" "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] 2cf3a7d9d82c3ea042cefd1cbbaac99be3104a5c2f40a7a469172a775aa7ae35
[INFO] running `Command { std: "docker" "start" "-a" "2cf3a7d9d82c3ea042cefd1cbbaac99be3104a5c2f40a7a469172a775aa7ae35", kill_on_drop: false }`
[INFO] [stderr]    Compiling env-test-util v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "2cf3a7d9d82c3ea042cefd1cbbaac99be3104a5c2f40a7a469172a775aa7ae35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cf3a7d9d82c3ea042cefd1cbbaac99be3104a5c2f40a7a469172a775aa7ae35", kill_on_drop: false }`
[INFO] [stdout] 2cf3a7d9d82c3ea042cefd1cbbaac99be3104a5c2f40a7a469172a775aa7ae35
[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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0089d2e94c55e0b462173955668312cc37aaf357a31459d70afcf2c64b3de718
[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" "0089d2e94c55e0b462173955668312cc37aaf357a31459d70afcf2c64b3de718", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/env_test_util-8caae65acc673268
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::with_non_existing_variable ... ok
[INFO] [stdout] test tests::with_existing_variable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests env-test-util
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - TempEnvVar (line 23) ... ok
[INFO] [stdout] test src/lib.rs - TempEnvVar (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0089d2e94c55e0b462173955668312cc37aaf357a31459d70afcf2c64b3de718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0089d2e94c55e0b462173955668312cc37aaf357a31459d70afcf2c64b3de718", kill_on_drop: false }`
[INFO] [stdout] 0089d2e94c55e0b462173955668312cc37aaf357a31459d70afcf2c64b3de718