[INFO] fetching crate flowc 0.31.0...
[INFO] checking flowc-0.31.0 against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] extracting crate flowc 0.31.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate flowc 0.31.0 on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flowc 0.31.0
[INFO] finished tweaking crates.io crate flowc 0.31.0
[INFO] tweaked toml for crates.io crate flowc 0.31.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate flowc 0.31.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c9a015711006189d49cdeda0630f9c75bd8d174316c8e37956ed692c3d36a99
[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" "4c9a015711006189d49cdeda0630f9c75bd8d174316c8e37956ed692c3d36a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c9a015711006189d49cdeda0630f9c75bd8d174316c8e37956ed692c3d36a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c9a015711006189d49cdeda0630f9c75bd8d174316c8e37956ed692c3d36a99", kill_on_drop: false }`
[INFO] [stdout] 4c9a015711006189d49cdeda0630f9c75bd8d174316c8e37956ed692c3d36a99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d233616edfea1d1d21ead16d89f451408b1fe756310ce6d26fd2d56ccaeeefb
[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" "0d233616edfea1d1d21ead16d89f451408b1fe756310ce6d26fd2d56ccaeeefb", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking simpath v1.4.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling curl-sys v0.4.38+curl-7.73.0
[INFO] [stderr]     Checking tinyvec v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking socket2 v0.3.16
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking simplog v1.2.2
[INFO] [stderr]     Checking error-chain v0.12.4
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking unicode-normalization v0.1.14
[INFO] [stderr]     Checking flow_impl v0.21.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling shrinkwraprs v0.2.3
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]     Checking provider v0.25.0
[INFO] [stderr]     Checking flowrstructs v0.25.0
[INFO] [stderr]     Checking flowc v0.31.0 (/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" "0d233616edfea1d1d21ead16d89f451408b1fe756310ce6d26fd2d56ccaeeefb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d233616edfea1d1d21ead16d89f451408b1fe756310ce6d26fd2d56ccaeeefb", kill_on_drop: false }`
[INFO] [stdout] 0d233616edfea1d1d21ead16d89f451408b1fe756310ce6d26fd2d56ccaeeefb