[INFO] fetching crate scan4df 0.2.1...
[INFO] testing scan4df-0.2.1 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate scan4df 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate scan4df 0.2.1 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scan4df 0.2.1
[INFO] finished tweaking crates.io crate scan4df 0.2.1
[INFO] tweaked toml for crates.io crate scan4df 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate scan4df 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dia-args v0.51.6
[INFO] [stderr]   Downloaded kib v4.0.0
[INFO] [stderr]   Downloaded zeros v7.1.0
[INFO] [stderr]   Downloaded dia-files v0.11.1
[INFO] [stderr]   Downloaded sub-strs v0.23.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13fe18cbe7d3e343f81f6be0ad021cb72134b7970aa8b9e7b692af1e29c671c5
[INFO] running `Command { std: "docker" "start" "-a" "13fe18cbe7d3e343f81f6be0ad021cb72134b7970aa8b9e7b692af1e29c671c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13fe18cbe7d3e343f81f6be0ad021cb72134b7970aa8b9e7b692af1e29c671c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13fe18cbe7d3e343f81f6be0ad021cb72134b7970aa8b9e7b692af1e29c671c5", kill_on_drop: false }`
[INFO] [stdout] 13fe18cbe7d3e343f81f6be0ad021cb72134b7970aa8b9e7b692af1e29c671c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ee0a58ef3769dff266202b32a56e16c0c2bc5a85d5fab6d47d89d5ba1c3a018
[INFO] running `Command { std: "docker" "start" "-a" "8ee0a58ef3769dff266202b32a56e16c0c2bc5a85d5fab6d47d89d5ba1c3a018", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling scan4df v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "8ee0a58ef3769dff266202b32a56e16c0c2bc5a85d5fab6d47d89d5ba1c3a018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ee0a58ef3769dff266202b32a56e16c0c2bc5a85d5fab6d47d89d5ba1c3a018", kill_on_drop: false }`
[INFO] [stdout] 8ee0a58ef3769dff266202b32a56e16c0c2bc5a85d5fab6d47d89d5ba1c3a018
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bceba095e035d73bebb5b3f7adf0c62ec70e5bcf3c92673c1243207152e14d3d
[INFO] running `Command { std: "docker" "start" "-a" "bceba095e035d73bebb5b3f7adf0c62ec70e5bcf3c92673c1243207152e14d3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling scan4df v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "bceba095e035d73bebb5b3f7adf0c62ec70e5bcf3c92673c1243207152e14d3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bceba095e035d73bebb5b3f7adf0c62ec70e5bcf3c92673c1243207152e14d3d", kill_on_drop: false }`
[INFO] [stdout] bceba095e035d73bebb5b3f7adf0c62ec70e5bcf3c92673c1243207152e14d3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f9527e7de8cca369c91214c30cda0e4adbc77a1908f8efa516de290eb28d3f4b
[INFO] running `Command { std: "docker" "start" "-a" "f9527e7de8cca369c91214c30cda0e4adbc77a1908f8efa516de290eb28d3f4b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/scan4df-49e85965024a5181)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests scan4df
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_crate_version ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "f9527e7de8cca369c91214c30cda0e4adbc77a1908f8efa516de290eb28d3f4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9527e7de8cca369c91214c30cda0e4adbc77a1908f8efa516de290eb28d3f4b", kill_on_drop: false }`
[INFO] [stdout] f9527e7de8cca369c91214c30cda0e4adbc77a1908f8efa516de290eb28d3f4b