[INFO] fetching crate mathical 0.1.3...
[INFO] testing mathical-0.1.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mathical 0.1.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate mathical 0.1.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mathical 0.1.3
[INFO] finished tweaking crates.io crate mathical 0.1.3
[INFO] tweaked toml for crates.io crate mathical 0.1.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate mathical 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.62
[INFO] [stderr]   Downloaded fltk-derive v0.15.6
[INFO] [stderr]   Downloaded fltk v0.15.6
[INFO] [stderr]   Downloaded fltk-sys v0.15.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b22181a6a515a91f0dbd2169aedfcfa30cc77d0b87d40ba1d50116eec9d159cb
[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" "b22181a6a515a91f0dbd2169aedfcfa30cc77d0b87d40ba1d50116eec9d159cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b22181a6a515a91f0dbd2169aedfcfa30cc77d0b87d40ba1d50116eec9d159cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b22181a6a515a91f0dbd2169aedfcfa30cc77d0b87d40ba1d50116eec9d159cb", kill_on_drop: false }`
[INFO] [stdout] b22181a6a515a91f0dbd2169aedfcfa30cc77d0b87d40ba1d50116eec9d159cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2a8e19c168f5dcf6a5ac4a1720b3ce5ffdcd0b4e5ad9b67fe62e4d7ecbd1628
[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" "d2a8e19c168f5dcf6a5ac4a1720b3ce5ffdcd0b4e5ad9b67fe62e4d7ecbd1628", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.62
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling fltk-sys v0.15.6
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling fltk-derive v0.15.6
[INFO] [stderr]    Compiling fltk v0.15.6
[INFO] [stderr]    Compiling mathical v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 51s
[INFO] running `Command { std: "docker" "inspect" "d2a8e19c168f5dcf6a5ac4a1720b3ce5ffdcd0b4e5ad9b67fe62e4d7ecbd1628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2a8e19c168f5dcf6a5ac4a1720b3ce5ffdcd0b4e5ad9b67fe62e4d7ecbd1628", kill_on_drop: false }`
[INFO] [stdout] d2a8e19c168f5dcf6a5ac4a1720b3ce5ffdcd0b4e5ad9b67fe62e4d7ecbd1628
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e21a38ac0b886dc5d98ecf0e2b93849ce129dc2c83631fc2de1e189a826e352
[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" "4e21a38ac0b886dc5d98ecf0e2b93849ce129dc2c83631fc2de1e189a826e352", kill_on_drop: false }`
[INFO] [stderr]    Compiling mathical v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "4e21a38ac0b886dc5d98ecf0e2b93849ce129dc2c83631fc2de1e189a826e352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e21a38ac0b886dc5d98ecf0e2b93849ce129dc2c83631fc2de1e189a826e352", kill_on_drop: false }`
[INFO] [stdout] 4e21a38ac0b886dc5d98ecf0e2b93849ce129dc2c83631fc2de1e189a826e352
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 54cf7c24b168b49adde8ed620f212988ed11616319cf62d3a8f998eb66c7f87e
[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" "54cf7c24b168b49adde8ed620f212988ed11616319cf62d3a8f998eb66c7f87e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mathical-2a578b58b448af66)
[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 unittests (/opt/rustwide/target/debug/deps/mathical-123eb3854073f039)
[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 mathical
[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" "54cf7c24b168b49adde8ed620f212988ed11616319cf62d3a8f998eb66c7f87e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54cf7c24b168b49adde8ed620f212988ed11616319cf62d3a8f998eb66c7f87e", kill_on_drop: false }`
[INFO] [stdout] 54cf7c24b168b49adde8ed620f212988ed11616319cf62d3a8f998eb66c7f87e