[INFO] fetching crate biosignal 0.1.0...
[INFO] testing biosignal-0.1.0 against 1.52.1 for beta-1.52-2
[INFO] extracting crate biosignal 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate biosignal 0.1.0 on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate biosignal 0.1.0
[INFO] finished tweaking crates.io crate biosignal 0.1.0
[INFO] tweaked toml for crates.io crate biosignal 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate biosignal 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "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] 383bf629d83cd2b46102f7cd6a2956ab0a24e457f59ebab6106da34ac384bc0b
[INFO] running `Command { std: "docker" "start" "-a" "383bf629d83cd2b46102f7cd6a2956ab0a24e457f59ebab6106da34ac384bc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "383bf629d83cd2b46102f7cd6a2956ab0a24e457f59ebab6106da34ac384bc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "383bf629d83cd2b46102f7cd6a2956ab0a24e457f59ebab6106da34ac384bc0b", kill_on_drop: false }`
[INFO] [stdout] 383bf629d83cd2b46102f7cd6a2956ab0a24e457f59ebab6106da34ac384bc0b
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "build" "--frozen" "--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] 475223485bf8087918156c03067a21ccb0af7f9193b57e861839a4beed054ae8
[INFO] running `Command { std: "docker" "start" "-a" "475223485bf8087918156c03067a21ccb0af7f9193b57e861839a4beed054ae8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libflate_lz77 v1.0.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling libflate v1.0.0
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]    Compiling matfile v0.2.1
[INFO] [stderr]    Compiling biosignal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.80s
[INFO] running `Command { std: "docker" "inspect" "475223485bf8087918156c03067a21ccb0af7f9193b57e861839a4beed054ae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475223485bf8087918156c03067a21ccb0af7f9193b57e861839a4beed054ae8", kill_on_drop: false }`
[INFO] [stdout] 475223485bf8087918156c03067a21ccb0af7f9193b57e861839a4beed054ae8
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25bfc9ca8788d4c98a3d82ae5a0ebb09096e9b3902a768003efd667b9298fd19
[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" "25bfc9ca8788d4c98a3d82ae5a0ebb09096e9b3902a768003efd667b9298fd19", kill_on_drop: false }`
[INFO] [stderr]    Compiling biosignal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "25bfc9ca8788d4c98a3d82ae5a0ebb09096e9b3902a768003efd667b9298fd19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25bfc9ca8788d4c98a3d82ae5a0ebb09096e9b3902a768003efd667b9298fd19", kill_on_drop: false }`
[INFO] [stdout] 25bfc9ca8788d4c98a3d82ae5a0ebb09096e9b3902a768003efd667b9298fd19
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ff6ecb46a872bdbc12ec6c6a159e2d464efa2ef0622e0ccfc13caa5f4b75ef2f
[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" "ff6ecb46a872bdbc12ec6c6a159e2d464efa2ef0622e0ccfc13caa5f4b75ef2f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/biosignal-9e6468ecf3782874)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests biosignal
[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] [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" "ff6ecb46a872bdbc12ec6c6a159e2d464efa2ef0622e0ccfc13caa5f4b75ef2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6ecb46a872bdbc12ec6c6a159e2d464efa2ef0622e0ccfc13caa5f4b75ef2f", kill_on_drop: false }`
[INFO] [stdout] ff6ecb46a872bdbc12ec6c6a159e2d464efa2ef0622e0ccfc13caa5f4b75ef2f