[INFO] fetching crate flowc 0.32.0...
[INFO] testing flowc-0.32.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate flowc 0.32.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate flowc 0.32.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flowc 0.32.0
[INFO] finished tweaking crates.io crate flowc 0.32.0
[INFO] tweaked toml for crates.io crate flowc 0.32.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate flowc 0.32.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a2c26e9a6745b86fe5a1b172a71739cc08e6496eae78cdc8dc4d35e6a5e50d1c
[INFO] running `Command { std: "docker" "start" "-a" "a2c26e9a6745b86fe5a1b172a71739cc08e6496eae78cdc8dc4d35e6a5e50d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2c26e9a6745b86fe5a1b172a71739cc08e6496eae78cdc8dc4d35e6a5e50d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2c26e9a6745b86fe5a1b172a71739cc08e6496eae78cdc8dc4d35e6a5e50d1c", kill_on_drop: false }`
[INFO] [stdout] a2c26e9a6745b86fe5a1b172a71739cc08e6496eae78cdc8dc4d35e6a5e50d1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db864bb3992be5091fcc60cb74a609ede8589886e0b531931306dedefbeceee4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "db864bb3992be5091fcc60cb74a609ede8589886e0b531931306dedefbeceee4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling openssl-sys v0.9.59
[INFO] [stderr]    Compiling curl-sys v0.4.39+curl-7.74.0
[INFO] [stderr]    Compiling socket2 v0.3.17
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling serde_yaml v0.8.14
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling flow_impl v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling shrinkwraprs v0.2.3
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]    Compiling provider v0.25.0
[INFO] [stderr]    Compiling flowrstructs v0.25.0
[INFO] [stderr]    Compiling flowc v0.32.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "db864bb3992be5091fcc60cb74a609ede8589886e0b531931306dedefbeceee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db864bb3992be5091fcc60cb74a609ede8589886e0b531931306dedefbeceee4", kill_on_drop: false }`
[INFO] [stdout] db864bb3992be5091fcc60cb74a609ede8589886e0b531931306dedefbeceee4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ac156b89311cc3b686b3bfb4d42cee80ebe9121fe4d2bb4b2a4468a48e93223
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1ac156b89311cc3b686b3bfb4d42cee80ebe9121fe4d2bb4b2a4468a48e93223", kill_on_drop: false }`
[INFO] [stderr]    Compiling flowc v0.32.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read src/compiler/../../tests/test_libs/Cargo.toml: No such file or directory (os error 2)
[INFO] [stdout]    --> src/compiler/loader.rs:203:24
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let contents = include_str!("../../tests/test_libs/Cargo.toml");
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flowc`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1ac156b89311cc3b686b3bfb4d42cee80ebe9121fe4d2bb4b2a4468a48e93223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ac156b89311cc3b686b3bfb4d42cee80ebe9121fe4d2bb4b2a4468a48e93223", kill_on_drop: false }`
[INFO] [stdout] 1ac156b89311cc3b686b3bfb4d42cee80ebe9121fe4d2bb4b2a4468a48e93223