[INFO] fetching crate bifrost 0.4.0-alpha.2...
[INFO] testing bifrost-0.4.0-alpha.2 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate bifrost 0.4.0-alpha.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate bifrost 0.4.0-alpha.2 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bifrost 0.4.0-alpha.2
[INFO] finished tweaking crates.io crate bifrost 0.4.0-alpha.2
[INFO] tweaked toml for crates.io crate bifrost 0.4.0-alpha.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9cba29cd2eb2aa0ca26972f9f3b65764ff74c25e0986736f6e7e86a548bc172b
[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" "9cba29cd2eb2aa0ca26972f9f3b65764ff74c25e0986736f6e7e86a548bc172b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cba29cd2eb2aa0ca26972f9f3b65764ff74c25e0986736f6e7e86a548bc172b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cba29cd2eb2aa0ca26972f9f3b65764ff74c25e0986736f6e7e86a548bc172b", kill_on_drop: false }`
[INFO] [stdout] 9cba29cd2eb2aa0ca26972f9f3b65764ff74c25e0986736f6e7e86a548bc172b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68e6fbda09087e7d19b08d71c3f73dcfee9c74a447dbb9c06b6991b16e21558a
[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" "68e6fbda09087e7d19b08d71c3f73dcfee9c74a447dbb9c06b6991b16e21558a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling vec1 v1.6.0
[INFO] [stderr]    Compiling bifrost-stun v0.1.0-alpha
[INFO] [stderr]    Compiling bifrost-ice v0.1.0-alpha
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling bifrost-sdp v0.1.0
[INFO] [stderr]    Compiling bifrost v0.4.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.06s
[INFO] running `Command { std: "docker" "inspect" "68e6fbda09087e7d19b08d71c3f73dcfee9c74a447dbb9c06b6991b16e21558a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68e6fbda09087e7d19b08d71c3f73dcfee9c74a447dbb9c06b6991b16e21558a", kill_on_drop: false }`
[INFO] [stdout] 68e6fbda09087e7d19b08d71c3f73dcfee9c74a447dbb9c06b6991b16e21558a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", 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] b8e38eb2a5459af2df78bdaed78cab36f7678ba48d7b2bf311e84d36ecabea95
[INFO] running `Command { std: "docker" "start" "-a" "b8e38eb2a5459af2df78bdaed78cab36f7678ba48d7b2bf311e84d36ecabea95", kill_on_drop: false }`
[INFO] [stderr]    Compiling bifrost v0.4.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "b8e38eb2a5459af2df78bdaed78cab36f7678ba48d7b2bf311e84d36ecabea95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e38eb2a5459af2df78bdaed78cab36f7678ba48d7b2bf311e84d36ecabea95", kill_on_drop: false }`
[INFO] [stdout] b8e38eb2a5459af2df78bdaed78cab36f7678ba48d7b2bf311e84d36ecabea95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] 001a352f9122d41370b1c64ca11259ce3ab2a9c9751aab89d8c19de35ae36f8f
[INFO] running `Command { std: "docker" "start" "-a" "001a352f9122d41370b1c64ca11259ce3ab2a9c9751aab89d8c19de35ae36f8f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bifrost-8ffda3de0ea321fc
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bifrost
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "001a352f9122d41370b1c64ca11259ce3ab2a9c9751aab89d8c19de35ae36f8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "001a352f9122d41370b1c64ca11259ce3ab2a9c9751aab89d8c19de35ae36f8f", kill_on_drop: false }`
[INFO] [stdout] 001a352f9122d41370b1c64ca11259ce3ab2a9c9751aab89d8c19de35ae36f8f