[INFO] fetching crate seance 0.4.0...
[INFO] testing seance-0.4.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate seance 0.4.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate seance 0.4.0 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 seance 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate seance 0.4.0
[INFO] tweaked toml for crates.io crate seance 0.4.0 written to /workspace/builds/worker-9/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] 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a4f464ae67f937808b1e65d6a4fcfdec5f248633e27e99def355784a50d18c9
[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" "0a4f464ae67f937808b1e65d6a4fcfdec5f248633e27e99def355784a50d18c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a4f464ae67f937808b1e65d6a4fcfdec5f248633e27e99def355784a50d18c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a4f464ae67f937808b1e65d6a4fcfdec5f248633e27e99def355784a50d18c9", kill_on_drop: false }`
[INFO] [stdout] 0a4f464ae67f937808b1e65d6a4fcfdec5f248633e27e99def355784a50d18c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] d19a6977e86e84464847e3e206d5060bb39284007faee23fe7d9de1ead669a6d
[INFO] running `Command { std: "docker" "start" "-a" "d19a6977e86e84464847e3e206d5060bb39284007faee23fe7d9de1ead669a6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling snafu v0.6.10
[INFO] [stderr]    Compiling seance v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.00s
[INFO] running `Command { std: "docker" "inspect" "d19a6977e86e84464847e3e206d5060bb39284007faee23fe7d9de1ead669a6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d19a6977e86e84464847e3e206d5060bb39284007faee23fe7d9de1ead669a6d", kill_on_drop: false }`
[INFO] [stdout] d19a6977e86e84464847e3e206d5060bb39284007faee23fe7d9de1ead669a6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 3e1ba3671018a78658bc222fcd7bcb902c2b1cd1a62019a45a4cb9167349e5bc
[INFO] running `Command { std: "docker" "start" "-a" "3e1ba3671018a78658bc222fcd7bcb902c2b1cd1a62019a45a4cb9167349e5bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling seance v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `Command { std: "docker" "inspect" "3e1ba3671018a78658bc222fcd7bcb902c2b1cd1a62019a45a4cb9167349e5bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e1ba3671018a78658bc222fcd7bcb902c2b1cd1a62019a45a4cb9167349e5bc", kill_on_drop: false }`
[INFO] [stdout] 3e1ba3671018a78658bc222fcd7bcb902c2b1cd1a62019a45a4cb9167349e5bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4a03321f43f2bbe76acd2c7f83aed4bc229f0e6b1145789e4fe83074cf2e2873
[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" "4a03321f43f2bbe76acd2c7f83aed4bc229f0e6b1145789e4fe83074cf2e2873", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/seance-1db90b39b14b4d77
[INFO] [stdout] test value::tests::serialize_value_ref ... ok
[INFO] [stdout] test value::tests::serialize_value ... ok
[INFO] [stderr]    Doc-tests seance
[INFO] [stdout] test value::tests::deserialize_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4a03321f43f2bbe76acd2c7f83aed4bc229f0e6b1145789e4fe83074cf2e2873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a03321f43f2bbe76acd2c7f83aed4bc229f0e6b1145789e4fe83074cf2e2873", kill_on_drop: false }`
[INFO] [stdout] 4a03321f43f2bbe76acd2c7f83aed4bc229f0e6b1145789e4fe83074cf2e2873