[INFO] fetching crate standback 0.4.4...
[INFO] testing standback-0.4.4 against 1.60.0 for beta-1.61-1
[INFO] extracting crate standback 0.4.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate standback 0.4.4 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate standback 0.4.4
[INFO] finished tweaking crates.io crate standback 0.4.4
[INFO] tweaked toml for crates.io crate standback 0.4.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded easy-ext v1.0.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 580b7d4f78d05a9359b6feb992b56062970ce464d9f1c7d3bd981f13f9a81487
[INFO] running `Command { std: "docker" "start" "-a" "580b7d4f78d05a9359b6feb992b56062970ce464d9f1c7d3bd981f13f9a81487", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "580b7d4f78d05a9359b6feb992b56062970ce464d9f1c7d3bd981f13f9a81487", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "580b7d4f78d05a9359b6feb992b56062970ce464d9f1c7d3bd981f13f9a81487", kill_on_drop: false }`
[INFO] [stdout] 580b7d4f78d05a9359b6feb992b56062970ce464d9f1c7d3bd981f13f9a81487
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb3de5790eeb611a0d0ddb401abba71e8ec2f635d47bfc76807f5cc3d0fa13d3
[INFO] running `Command { std: "docker" "start" "-a" "fb3de5790eeb611a0d0ddb401abba71e8ec2f635d47bfc76807f5cc3d0fa13d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling easy-ext v1.0.0
[INFO] [stderr]    Compiling standback v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `Command { std: "docker" "inspect" "fb3de5790eeb611a0d0ddb401abba71e8ec2f635d47bfc76807f5cc3d0fa13d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb3de5790eeb611a0d0ddb401abba71e8ec2f635d47bfc76807f5cc3d0fa13d3", kill_on_drop: false }`
[INFO] [stdout] fb3de5790eeb611a0d0ddb401abba71e8ec2f635d47bfc76807f5cc3d0fa13d3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf2b37dcbcd85b53111542a7f191027eb12c7d84e020928b4c9080a4a4932521
[INFO] running `Command { std: "docker" "start" "-a" "bf2b37dcbcd85b53111542a7f191027eb12c7d84e020928b4c9080a4a4932521", kill_on_drop: false }`
[INFO] [stderr]    Compiling standback v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "bf2b37dcbcd85b53111542a7f191027eb12c7d84e020928b4c9080a4a4932521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf2b37dcbcd85b53111542a7f191027eb12c7d84e020928b4c9080a4a4932521", kill_on_drop: false }`
[INFO] [stdout] bf2b37dcbcd85b53111542a7f191027eb12c7d84e020928b4c9080a4a4932521
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 646f6770bcf683f8da1efc2eee9b6ca7299d2946dbe83c19067f5bc11795c9f8
[INFO] running `Command { std: "docker" "start" "-a" "646f6770bcf683f8da1efc2eee9b6ca7299d2946dbe83c19067f5bc11795c9f8", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/standback-f23b79d556b43ffa)
[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 standback
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 17) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 24) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "646f6770bcf683f8da1efc2eee9b6ca7299d2946dbe83c19067f5bc11795c9f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "646f6770bcf683f8da1efc2eee9b6ca7299d2946dbe83c19067f5bc11795c9f8", kill_on_drop: false }`
[INFO] [stdout] 646f6770bcf683f8da1efc2eee9b6ca7299d2946dbe83c19067f5bc11795c9f8