[INFO] fetching crate siren 1.3.1...
[INFO] testing siren-1.3.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate siren 1.3.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate siren 1.3.1 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 siren 1.3.1
[INFO] finished tweaking crates.io crate siren 1.3.1
[INFO] tweaked toml for crates.io crate siren 1.3.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate siren 1.3.1 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 redox_syscall v0.1.44
[INFO] [stderr]   Downloaded libc v0.2.29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] d2e53a8237487cbfa659d332447d3c74584e27b3f455f0ca24efbc8d75dd935f
[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" "d2e53a8237487cbfa659d332447d3c74584e27b3f455f0ca24efbc8d75dd935f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2e53a8237487cbfa659d332447d3c74584e27b3f455f0ca24efbc8d75dd935f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2e53a8237487cbfa659d332447d3c74584e27b3f455f0ca24efbc8d75dd935f", kill_on_drop: false }`
[INFO] [stdout] d2e53a8237487cbfa659d332447d3c74584e27b3f455f0ca24efbc8d75dd935f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 02db7ee0b57b43ee99b67d4cc454b5364ad92f99facfcecb298e2dcca2f955fd
[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" "02db7ee0b57b43ee99b67d4cc454b5364ad92f99facfcecb298e2dcca2f955fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling libc v0.2.29
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling siren v1.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.84s
[INFO] running `Command { std: "docker" "inspect" "02db7ee0b57b43ee99b67d4cc454b5364ad92f99facfcecb298e2dcca2f955fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02db7ee0b57b43ee99b67d4cc454b5364ad92f99facfcecb298e2dcca2f955fd", kill_on_drop: false }`
[INFO] [stdout] 02db7ee0b57b43ee99b67d4cc454b5364ad92f99facfcecb298e2dcca2f955fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d7853c6d41a99ebb3c4183c2ece4633617e6f19037825c5e7b36d2fbbc0927e1
[INFO] running `Command { std: "docker" "start" "-a" "d7853c6d41a99ebb3c4183c2ece4633617e6f19037825c5e7b36d2fbbc0927e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling siren v1.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "d7853c6d41a99ebb3c4183c2ece4633617e6f19037825c5e7b36d2fbbc0927e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7853c6d41a99ebb3c4183c2ece4633617e6f19037825c5e7b36d2fbbc0927e1", kill_on_drop: false }`
[INFO] [stdout] d7853c6d41a99ebb3c4183c2ece4633617e6f19037825c5e7b36d2fbbc0927e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 1d02b9a2ea940ddc0e2b159ec76f962bf9b474938d20659bd03f95a26ba4c598
[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" "1d02b9a2ea940ddc0e2b159ec76f962bf9b474938d20659bd03f95a26ba4c598", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/siren-2daa2ae17926846a
[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" "1d02b9a2ea940ddc0e2b159ec76f962bf9b474938d20659bd03f95a26ba4c598", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d02b9a2ea940ddc0e2b159ec76f962bf9b474938d20659bd03f95a26ba4c598", kill_on_drop: false }`
[INFO] [stdout] 1d02b9a2ea940ddc0e2b159ec76f962bf9b474938d20659bd03f95a26ba4c598