[INFO] fetching crate tars-core 0.1.0...
[INFO] testing tars-core-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate tars-core 0.1.0 into /workspace/builds/worker-68/source
[INFO] validating manifest of crates.io crate tars-core 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tars-core 0.1.0
[INFO] finished tweaking crates.io crate tars-core 0.1.0
[INFO] tweaked toml for crates.io crate tars-core 0.1.0 written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81d3c7ab206fa0b21e6517dbc3c9cb1787d25bffe3c5bf40773f8853d7626705
[INFO] running `Command { std: "docker" "start" "-a" "81d3c7ab206fa0b21e6517dbc3c9cb1787d25bffe3c5bf40773f8853d7626705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81d3c7ab206fa0b21e6517dbc3c9cb1787d25bffe3c5bf40773f8853d7626705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81d3c7ab206fa0b21e6517dbc3c9cb1787d25bffe3c5bf40773f8853d7626705", kill_on_drop: false }`
[INFO] [stdout] 81d3c7ab206fa0b21e6517dbc3c9cb1787d25bffe3c5bf40773f8853d7626705
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 764455306e476f0a4e4c1417c5d3e2a246e93beafdd63998b9d4499906865a2a
[INFO] running `Command { std: "docker" "start" "-a" "764455306e476f0a4e4c1417c5d3e2a246e93beafdd63998b9d4499906865a2a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tars-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.82s
[INFO] running `Command { std: "docker" "inspect" "764455306e476f0a4e4c1417c5d3e2a246e93beafdd63998b9d4499906865a2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "764455306e476f0a4e4c1417c5d3e2a246e93beafdd63998b9d4499906865a2a", kill_on_drop: false }`
[INFO] [stdout] 764455306e476f0a4e4c1417c5d3e2a246e93beafdd63998b9d4499906865a2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9efd8485fbee8f6fe92855825bd0d9b4e1699d31fdb5c57268a8ecffa0ab7364
[INFO] running `Command { std: "docker" "start" "-a" "9efd8485fbee8f6fe92855825bd0d9b4e1699d31fdb5c57268a8ecffa0ab7364", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tars-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.90s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/tars_core-bc039f3b9cf7302d)
[INFO] running `Command { std: "docker" "inspect" "9efd8485fbee8f6fe92855825bd0d9b4e1699d31fdb5c57268a8ecffa0ab7364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9efd8485fbee8f6fe92855825bd0d9b4e1699d31fdb5c57268a8ecffa0ab7364", kill_on_drop: false }`
[INFO] [stdout] 9efd8485fbee8f6fe92855825bd0d9b4e1699d31fdb5c57268a8ecffa0ab7364
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 26fd200516ca9b4d6cede604a55d8acb60a9e9ac21d17768fcc666c021ab9cfe
[INFO] running `Command { std: "docker" "start" "-a" "26fd200516ca9b4d6cede604a55d8acb60a9e9ac21d17768fcc666c021ab9cfe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tars_core-bc039f3b9cf7302d)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tars-core
[INFO] [stdout] test result: ok. 0 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 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "26fd200516ca9b4d6cede604a55d8acb60a9e9ac21d17768fcc666c021ab9cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26fd200516ca9b4d6cede604a55d8acb60a9e9ac21d17768fcc666c021ab9cfe", kill_on_drop: false }`
[INFO] [stdout] 26fd200516ca9b4d6cede604a55d8acb60a9e9ac21d17768fcc666c021ab9cfe