[INFO] fetching crate placeholder_closure 0.1.0...
[INFO] testing placeholder_closure-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate placeholder_closure 0.1.0 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate placeholder_closure 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate placeholder_closure 0.1.0
[INFO] finished tweaking crates.io crate placeholder_closure 0.1.0
[INFO] tweaked toml for crates.io crate placeholder_closure 0.1.0 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] crate crates.io crate placeholder_closure 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7d87135fefa7c93a7a6d281cb010870ce94682b48301b9eea73dc4e15722769
[INFO] running `Command { std: "docker" "start" "-a" "e7d87135fefa7c93a7a6d281cb010870ce94682b48301b9eea73dc4e15722769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7d87135fefa7c93a7a6d281cb010870ce94682b48301b9eea73dc4e15722769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7d87135fefa7c93a7a6d281cb010870ce94682b48301b9eea73dc4e15722769", kill_on_drop: false }`
[INFO] [stdout] e7d87135fefa7c93a7a6d281cb010870ce94682b48301b9eea73dc4e15722769
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 456e5fce38f7ea29704bbaed64132de8b10268ea145d2c7ec484cf3483c4a97b
[INFO] running `Command { std: "docker" "start" "-a" "456e5fce38f7ea29704bbaed64132de8b10268ea145d2c7ec484cf3483c4a97b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling placeholder_closure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.88s
[INFO] running `Command { std: "docker" "inspect" "456e5fce38f7ea29704bbaed64132de8b10268ea145d2c7ec484cf3483c4a97b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "456e5fce38f7ea29704bbaed64132de8b10268ea145d2c7ec484cf3483c4a97b", kill_on_drop: false }`
[INFO] [stdout] 456e5fce38f7ea29704bbaed64132de8b10268ea145d2c7ec484cf3483c4a97b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c553f79bb44c314c335f4e0175b5d2f54e7b7039c273cc1219e9a1061a16c4a
[INFO] running `Command { std: "docker" "start" "-a" "6c553f79bb44c314c335f4e0175b5d2f54e7b7039c273cc1219e9a1061a16c4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling placeholder_closure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "6c553f79bb44c314c335f4e0175b5d2f54e7b7039c273cc1219e9a1061a16c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c553f79bb44c314c335f4e0175b5d2f54e7b7039c273cc1219e9a1061a16c4a", kill_on_drop: false }`
[INFO] [stdout] 6c553f79bb44c314c335f4e0175b5d2f54e7b7039c273cc1219e9a1061a16c4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9e05acd1d2974b6ef2172c1b3526518815042092cd449db03af31160eeea2e77
[INFO] running `Command { std: "docker" "start" "-a" "9e05acd1d2974b6ef2172c1b3526518815042092cd449db03af31160eeea2e77", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/placeholder_closure-64d1b3f7d729ee5b)
[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] [stderr]    Doc-tests placeholder_closure
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] test src/lib.rs - (line 32) ... ok
[INFO] [stdout] test src/lib.rs - (line 3) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.44s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9e05acd1d2974b6ef2172c1b3526518815042092cd449db03af31160eeea2e77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e05acd1d2974b6ef2172c1b3526518815042092cd449db03af31160eeea2e77", kill_on_drop: false }`
[INFO] [stdout] 9e05acd1d2974b6ef2172c1b3526518815042092cd449db03af31160eeea2e77