[INFO] fetching crate bcount 0.1.0...
[INFO] testing bcount-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate bcount 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate bcount 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bcount 0.1.0
[INFO] finished tweaking crates.io crate bcount 0.1.0
[INFO] tweaked toml for crates.io crate bcount 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.49.0" "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] 16385bc9c244daff375a2cf44a0e8bc0b76549f399af04766d7a8ae16d4d8676
[INFO] running `Command { std: "docker" "start" "-a" "16385bc9c244daff375a2cf44a0e8bc0b76549f399af04766d7a8ae16d4d8676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16385bc9c244daff375a2cf44a0e8bc0b76549f399af04766d7a8ae16d4d8676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16385bc9c244daff375a2cf44a0e8bc0b76549f399af04766d7a8ae16d4d8676", kill_on_drop: false }`
[INFO] [stdout] 16385bc9c244daff375a2cf44a0e8bc0b76549f399af04766d7a8ae16d4d8676
[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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f7125870fea915f332dde8162ff1fed6294568cbf621cbfc9950906b473c779
[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" "7f7125870fea915f332dde8162ff1fed6294568cbf621cbfc9950906b473c779", kill_on_drop: false }`
[INFO] [stderr]    Compiling bcount v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "7f7125870fea915f332dde8162ff1fed6294568cbf621cbfc9950906b473c779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f7125870fea915f332dde8162ff1fed6294568cbf621cbfc9950906b473c779", kill_on_drop: false }`
[INFO] [stdout] 7f7125870fea915f332dde8162ff1fed6294568cbf621cbfc9950906b473c779
[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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff70b7d035bdb3fbb7e02a41d29833f9cf34877ee3219543c28b1879586d46f0
[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" "ff70b7d035bdb3fbb7e02a41d29833f9cf34877ee3219543c28b1879586d46f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling bcount v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "ff70b7d035bdb3fbb7e02a41d29833f9cf34877ee3219543c28b1879586d46f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff70b7d035bdb3fbb7e02a41d29833f9cf34877ee3219543c28b1879586d46f0", kill_on_drop: false }`
[INFO] [stdout] ff70b7d035bdb3fbb7e02a41d29833f9cf34877ee3219543c28b1879586d46f0
[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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7fea1f20e7c41d5f2e7d48ea4af2bd5482eb79ec4622ccafb1fae914812b0508
[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" "7fea1f20e7c41d5f2e7d48ea4af2bd5482eb79ec4622ccafb1fae914812b0508", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bcount-80ec40dd7ccf179d
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bcount
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::non_mutable ... ok
[INFO] [stdout] test tests::count ... ok
[INFO] [stdout] test tests::overflow ... ok
[INFO] [stdout] test tests::reset ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 53) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7fea1f20e7c41d5f2e7d48ea4af2bd5482eb79ec4622ccafb1fae914812b0508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fea1f20e7c41d5f2e7d48ea4af2bd5482eb79ec4622ccafb1fae914812b0508", kill_on_drop: false }`
[INFO] [stdout] 7fea1f20e7c41d5f2e7d48ea4af2bd5482eb79ec4622ccafb1fae914812b0508