[INFO] fetching crate serializer 2.1.2...
[INFO] building serializer-2.1.2 against try#d5c88c22807925c189328ef9d923c5d2b11a95b8+rustflags=-Zprofile-closures for pr-87066-3
[INFO] extracting crate serializer 2.1.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate serializer 2.1.2 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serializer 2.1.2
[INFO] finished tweaking crates.io crate serializer 2.1.2
[INFO] tweaked toml for crates.io crate serializer 2.1.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3bee0a140f43f5d7073633e3182c9f3194b5317582271cdf8e1a135261af09a
[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" "d3bee0a140f43f5d7073633e3182c9f3194b5317582271cdf8e1a135261af09a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3bee0a140f43f5d7073633e3182c9f3194b5317582271cdf8e1a135261af09a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3bee0a140f43f5d7073633e3182c9f3194b5317582271cdf8e1a135261af09a", kill_on_drop: false }`
[INFO] [stdout] d3bee0a140f43f5d7073633e3182c9f3194b5317582271cdf8e1a135261af09a
[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=forbid -Zprofile-closures" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5be861ca2f0c059aa6d6ff678235006f6db2fc92251a464848d3fdd909a3aee2
[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" "5be861ca2f0c059aa6d6ff678235006f6db2fc92251a464848d3fdd909a3aee2", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (6512727ba8785d1b, 965e2de2bfbfef5c), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (e949f8fd868440b6, 8b6731077899d65c), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (89283d6413827cb2, 26695d7199f78f6b), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (70e2343179761711, aba7edce02f439f9), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (19304ec9462326d2, 497f7e565dd31571), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (24de04809f378528, 59c2ba87640ea6c7), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (c4ae3230884c02e4, fe02e6898db0e0a4), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (9cccc653dca637ab, 67a7b629d71e46ae), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (65e98cb298ead06c, 207f188e4711526), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (c2eb7e3e84fd1516, 47cd9011e8d0d05), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (c2eb7e3e84fd1516, 47cd9011e8d0d05), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (373f8fce48b171d5, 3858372071d42b06), 16, 16
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (4e3d571c24efd376, 29f217734199dff8), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (2d88385047df7932, 76e14764fc8937dc), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (e2bd80c7fb9a6816, 305089ef58b4ca5c), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (cc20f28bf97f2ce0, 7e1a455aca4d6a19), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (cc20f28bf97f2ce0, 7e1a455aca4d6a19), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (4c5838df0d1cfcea, b1c8b4a51223bdce), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (9125e534bcb45a92, 433f7e1b425411cb), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (4b3b183b8c229bdb, 98453a2e934af234), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (1ca9c3298d2111f, 2c1c308930618dd1), 8, 8
[INFO] [stderr]    Compiling serializer v2.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.91s
[INFO] running `Command { std: "docker" "inspect" "5be861ca2f0c059aa6d6ff678235006f6db2fc92251a464848d3fdd909a3aee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5be861ca2f0c059aa6d6ff678235006f6db2fc92251a464848d3fdd909a3aee2", kill_on_drop: false }`
[INFO] [stdout] 5be861ca2f0c059aa6d6ff678235006f6db2fc92251a464848d3fdd909a3aee2
[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=forbid -Zprofile-closures" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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] aea281a29b0bdf4f99ecd9d6a3d209bf883f46b9b35d0301d49031dc1874d752
[INFO] running `Command { std: "docker" "start" "-a" "aea281a29b0bdf4f99ecd9d6a3d209bf883f46b9b35d0301d49031dc1874d752", kill_on_drop: false }`
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (6512727ba8785d1b, 965e2de2bfbfef5c), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (e949f8fd868440b6, 8b6731077899d65c), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (89283d6413827cb2, 26695d7199f78f6b), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (70e2343179761711, aba7edce02f439f9), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (19304ec9462326d2, 497f7e565dd31571), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (24de04809f378528, 59c2ba87640ea6c7), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (c4ae3230884c02e4, fe02e6898db0e0a4), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (9cccc653dca637ab, 67a7b629d71e46ae), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (65e98cb298ead06c, 207f188e4711526), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (c2eb7e3e84fd1516, 47cd9011e8d0d05), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (c2eb7e3e84fd1516, 47cd9011e8d0d05), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (373f8fce48b171d5, 3858372071d42b06), 16, 16
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (4e3d571c24efd376, 29f217734199dff8), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (2d88385047df7932, 76e14764fc8937dc), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (e2bd80c7fb9a6816, 305089ef58b4ca5c), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (cc20f28bf97f2ce0, 7e1a455aca4d6a19), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (cc20f28bf97f2ce0, 7e1a455aca4d6a19), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (4c5838df0d1cfcea, b1c8b4a51223bdce), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (9125e534bcb45a92, 433f7e1b425411cb), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (4b3b183b8c229bdb, 98453a2e934af234), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: serde_json, (1ca9c3298d2111f, 2c1c308930618dd1), 8, 8
[INFO] [stderr]    Compiling serializer v2.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "aea281a29b0bdf4f99ecd9d6a3d209bf883f46b9b35d0301d49031dc1874d752", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aea281a29b0bdf4f99ecd9d6a3d209bf883f46b9b35d0301d49031dc1874d752", kill_on_drop: false }`
[INFO] [stdout] aea281a29b0bdf4f99ecd9d6a3d209bf883f46b9b35d0301d49031dc1874d752