[INFO] fetching crate empty 0.0.4...
[INFO] testing empty-0.0.4 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate empty 0.0.4 into /workspace/builds/worker-99/source
[INFO] validating manifest of crates.io crate empty 0.0.4 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate empty 0.0.4
[INFO] finished tweaking crates.io crate empty 0.0.4
[INFO] tweaked toml for crates.io crate empty 0.0.4 written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d70fd36798ab38b25ccbe4ec9980d818be368ac51b2c8a4048f413b459f7565
[INFO] running `Command { std: "docker" "start" "-a" "6d70fd36798ab38b25ccbe4ec9980d818be368ac51b2c8a4048f413b459f7565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d70fd36798ab38b25ccbe4ec9980d818be368ac51b2c8a4048f413b459f7565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d70fd36798ab38b25ccbe4ec9980d818be368ac51b2c8a4048f413b459f7565", kill_on_drop: false }`
[INFO] [stdout] 6d70fd36798ab38b25ccbe4ec9980d818be368ac51b2c8a4048f413b459f7565
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb7f7c86c4cb7fc0d6a4ac2a209866110f3023bf38747ecceb2f6a2aecfa1091
[INFO] running `Command { std: "docker" "start" "-a" "fb7f7c86c4cb7fc0d6a4ac2a209866110f3023bf38747ecceb2f6a2aecfa1091", kill_on_drop: false }`
[INFO] [stderr]    Compiling empty v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "fb7f7c86c4cb7fc0d6a4ac2a209866110f3023bf38747ecceb2f6a2aecfa1091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb7f7c86c4cb7fc0d6a4ac2a209866110f3023bf38747ecceb2f6a2aecfa1091", kill_on_drop: false }`
[INFO] [stdout] fb7f7c86c4cb7fc0d6a4ac2a209866110f3023bf38747ecceb2f6a2aecfa1091
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e581b48b5509a3c0de3d8d8b4558dc465b6a6fb02b836fe410de5c4acb58ba5
[INFO] running `Command { std: "docker" "start" "-a" "0e581b48b5509a3c0de3d8d8b4558dc465b6a6fb02b836fe410de5c4acb58ba5", kill_on_drop: false }`
[INFO] [stderr]    Compiling empty v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "0e581b48b5509a3c0de3d8d8b4558dc465b6a6fb02b836fe410de5c4acb58ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e581b48b5509a3c0de3d8d8b4558dc465b6a6fb02b836fe410de5c4acb58ba5", kill_on_drop: false }`
[INFO] [stdout] 0e581b48b5509a3c0de3d8d8b4558dc465b6a6fb02b836fe410de5c4acb58ba5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cae20f9b372cb758c424558ecbe641c8af9f4edc68aa2a8ec3887f2ec279fad8
[INFO] running `Command { std: "docker" "start" "-a" "cae20f9b372cb758c424558ecbe641c8af9f4edc68aa2a8ec3887f2ec279fad8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/empty-e8cdbd114c10e4f2)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]    Doc-tests empty
[INFO] [stdout] test test::it_works ... ok
[INFO] [stdout] test test::it_works_2 ... ok
[INFO] [stdout] test test::it_works_iterator ... ok
[INFO] [stdout] test test::len ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cae20f9b372cb758c424558ecbe641c8af9f4edc68aa2a8ec3887f2ec279fad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cae20f9b372cb758c424558ecbe641c8af9f4edc68aa2a8ec3887f2ec279fad8", kill_on_drop: false }`
[INFO] [stdout] cae20f9b372cb758c424558ecbe641c8af9f4edc68aa2a8ec3887f2ec279fad8