[INFO] fetching crate if_empty 0.2.0...
[INFO] testing if_empty-0.2.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate if_empty 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate if_empty 0.2.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate if_empty 0.2.0
[INFO] finished tweaking crates.io crate if_empty 0.2.0
[INFO] tweaked toml for crates.io crate if_empty 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate if_empty 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96352a2cbae53437c9e1391cd4a50c364a518905f8b94c444e1b9b8c545d8931
[INFO] running `Command { std: "docker" "start" "-a" "96352a2cbae53437c9e1391cd4a50c364a518905f8b94c444e1b9b8c545d8931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96352a2cbae53437c9e1391cd4a50c364a518905f8b94c444e1b9b8c545d8931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96352a2cbae53437c9e1391cd4a50c364a518905f8b94c444e1b9b8c545d8931", kill_on_drop: false }`
[INFO] [stdout] 96352a2cbae53437c9e1391cd4a50c364a518905f8b94c444e1b9b8c545d8931
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66a4963a068850571131887d62a37707b5efcdd46efa7d852ac68ac71a74e1da
[INFO] running `Command { std: "docker" "start" "-a" "66a4963a068850571131887d62a37707b5efcdd46efa7d852ac68ac71a74e1da", kill_on_drop: false }`
[INFO] [stderr]    Compiling if_empty v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "66a4963a068850571131887d62a37707b5efcdd46efa7d852ac68ac71a74e1da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66a4963a068850571131887d62a37707b5efcdd46efa7d852ac68ac71a74e1da", kill_on_drop: false }`
[INFO] [stdout] 66a4963a068850571131887d62a37707b5efcdd46efa7d852ac68ac71a74e1da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 207e77bae34345a1ff859a1515f89dd52fbc75014f9796ce6fde7c1c7c713da5
[INFO] running `Command { std: "docker" "start" "-a" "207e77bae34345a1ff859a1515f89dd52fbc75014f9796ce6fde7c1c7c713da5", kill_on_drop: false }`
[INFO] [stderr]    Compiling if_empty v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "207e77bae34345a1ff859a1515f89dd52fbc75014f9796ce6fde7c1c7c713da5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "207e77bae34345a1ff859a1515f89dd52fbc75014f9796ce6fde7c1c7c713da5", kill_on_drop: false }`
[INFO] [stdout] 207e77bae34345a1ff859a1515f89dd52fbc75014f9796ce6fde7c1c7c713da5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9afc5e41530ff169ce15d23ce1de96a2cb504e4dd06151ad49dd2ea1dcb8b7c4
[INFO] running `Command { std: "docker" "start" "-a" "9afc5e41530ff169ce15d23ce1de96a2cb504e4dd06151ad49dd2ea1dcb8b7c4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 5 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/if_empty-f6c858d835b82bbd)
[INFO] [stdout] test tests::string ... ok
[INFO] [stdout] test tests::str ... ok
[INFO] [stdout] test tests::custom ... ok
[INFO] [stdout] test tests::os_string ... ok
[INFO] [stderr]    Doc-tests if_empty
[INFO] [stdout] test tests::os_str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 59) ... ok
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9afc5e41530ff169ce15d23ce1de96a2cb504e4dd06151ad49dd2ea1dcb8b7c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9afc5e41530ff169ce15d23ce1de96a2cb504e4dd06151ad49dd2ea1dcb8b7c4", kill_on_drop: false }`
[INFO] [stdout] 9afc5e41530ff169ce15d23ce1de96a2cb504e4dd06151ad49dd2ea1dcb8b7c4