[INFO] fetching crate polyhorn 0.4.1...
[INFO] testing polyhorn-0.4.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate polyhorn 0.4.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate polyhorn 0.4.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polyhorn 0.4.1
[INFO] finished tweaking crates.io crate polyhorn 0.4.1
[INFO] tweaked toml for crates.io crate polyhorn 0.4.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate polyhorn 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded combine v4.4.0
[INFO] [stderr]   Downloaded paste v1.0.3
[INFO] [stderr]   Downloaded polyhorn-build v0.4.0
[INFO] [stderr]   Downloaded polyhorn-yoga v0.3.3
[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" "+beta-2021-01-01" "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] 71b95f3c3905964cd720df907ffc5ce51fba51a2d5c687e7acac21a4900ebee6
[INFO] running `Command { std: "docker" "start" "-a" "71b95f3c3905964cd720df907ffc5ce51fba51a2d5c687e7acac21a4900ebee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71b95f3c3905964cd720df907ffc5ce51fba51a2d5c687e7acac21a4900ebee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b95f3c3905964cd720df907ffc5ce51fba51a2d5c687e7acac21a4900ebee6", kill_on_drop: false }`
[INFO] [stdout] 71b95f3c3905964cd720df907ffc5ce51fba51a2d5c687e7acac21a4900ebee6
[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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4b7916abf44bcf3eb2bf6121cc65b657bd27af23afdecd931b4f5385f93c27c
[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" "b4b7916abf44bcf3eb2bf6121cc65b657bd27af23afdecd931b4f5385f93c27c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling polyhorn-macros v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling polyhorn-core v0.4.0
[INFO] [stderr]    Compiling cargo-lock v6.0.0
[INFO] [stderr]    Compiling polyhorn v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.43s
[INFO] running `Command { std: "docker" "inspect" "b4b7916abf44bcf3eb2bf6121cc65b657bd27af23afdecd931b4f5385f93c27c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4b7916abf44bcf3eb2bf6121cc65b657bd27af23afdecd931b4f5385f93c27c", kill_on_drop: false }`
[INFO] [stdout] b4b7916abf44bcf3eb2bf6121cc65b657bd27af23afdecd931b4f5385f93c27c
[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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f79e83b8f0f7f47550de229d2dc5571098068f31cf810001e2e3b6b5d06f991c
[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" "f79e83b8f0f7f47550de229d2dc5571098068f31cf810001e2e3b6b5d06f991c", kill_on_drop: false }`
[INFO] [stderr]    Compiling polyhorn v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "f79e83b8f0f7f47550de229d2dc5571098068f31cf810001e2e3b6b5d06f991c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f79e83b8f0f7f47550de229d2dc5571098068f31cf810001e2e3b6b5d06f991c", kill_on_drop: false }`
[INFO] [stdout] f79e83b8f0f7f47550de229d2dc5571098068f31cf810001e2e3b6b5d06f991c
[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" "+beta-2021-01-01" "test" "--frozen", 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] 37c59fe9ef6cb76f7958f8736f6c2ea86de15cbcae546a165b55c3ddbce48d73
[INFO] running `Command { std: "docker" "start" "-a" "37c59fe9ef6cb76f7958f8736f6c2ea86de15cbcae546a165b55c3ddbce48d73", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/polyhorn-65f7cc54d19f4b5b
[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] [stderr]      Running /opt/rustwide/target/debug/deps/polyhorn-e9a7fce2793a0a2a
[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] [stderr]    Doc-tests polyhorn
[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" "37c59fe9ef6cb76f7958f8736f6c2ea86de15cbcae546a165b55c3ddbce48d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37c59fe9ef6cb76f7958f8736f6c2ea86de15cbcae546a165b55c3ddbce48d73", kill_on_drop: false }`
[INFO] [stdout] 37c59fe9ef6cb76f7958f8736f6c2ea86de15cbcae546a165b55c3ddbce48d73