[INFO] fetching crate rabe 0.2.3...
[INFO] checking rabe-0.2.3 against try#075992eda207e1647b699c8c8ada67b32ce7b115 for pr-77271
[INFO] extracting crate rabe 0.2.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rabe 0.2.3 on toolchain 075992eda207e1647b699c8c8ada67b32ce7b115
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rabe 0.2.3
[INFO] finished tweaking crates.io crate rabe 0.2.3
[INFO] tweaked toml for crates.io crate rabe 0.2.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arrayvec v0.4.12
[INFO] [stderr]   Downloaded rabe-bn v0.4.10
[INFO] [stderr]   Downloaded half v1.6.0
[INFO] [stderr]   Downloaded num-bigint v0.1.44
[INFO] [stderr]   Downloaded maplit v1.0.2
[INFO] [stderr]   Downloaded pest_generator v2.1.3
[INFO] [stderr]   Downloaded nodrop v0.1.14
[INFO] [stderr]   Downloaded constant_time_eq v0.1.5
[INFO] [stderr]   Downloaded ucd-trie v0.1.3
[INFO] [stderr]   Downloaded blake2-rfc v0.2.18
[INFO] [stderr]   Downloaded serde_cbor v0.9.0
[INFO] [stderr]   Downloaded pest_derive v2.1.0
[INFO] [stderr]   Downloaded gcc v0.3.55
[INFO] [stderr]   Downloaded base64 v0.10.1
[INFO] [stderr]   Downloaded pest_meta v2.1.3
[INFO] [stderr]   Downloaded permutation v0.2.5
[INFO] [stderr]   Downloaded pest v2.1.3
[INFO] [stderr]   Downloaded rust-crypto v0.2.36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "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] d026eaff67b00fc619c2f9f948c82e8cb84746d63ec712e1b5f1a68c95ea050e
[INFO] running `Command { std: "docker" "start" "-a" "d026eaff67b00fc619c2f9f948c82e8cb84746d63ec712e1b5f1a68c95ea050e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d026eaff67b00fc619c2f9f948c82e8cb84746d63ec712e1b5f1a68c95ea050e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d026eaff67b00fc619c2f9f948c82e8cb84746d63ec712e1b5f1a68c95ea050e", kill_on_drop: false }`
[INFO] [stdout] d026eaff67b00fc619c2f9f948c82e8cb84746d63ec712e1b5f1a68c95ea050e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "check" "--frozen" "--all" "--all-targets" "--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] eb2e14460922790f25119e28f69510ecea31174c1bde7290a0705c7cb0cb140c
[INFO] running `Command { std: "docker" "start" "-a" "eb2e14460922790f25119e28f69510ecea31174c1bde7290a0705c7cb0cb140c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking permutation v0.2.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking ryu v1.0.5
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking rabe-bn v0.4.10
[INFO] [stderr]     Checking rabe v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.10s
[INFO] running `Command { std: "docker" "inspect" "eb2e14460922790f25119e28f69510ecea31174c1bde7290a0705c7cb0cb140c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb2e14460922790f25119e28f69510ecea31174c1bde7290a0705c7cb0cb140c", kill_on_drop: false }`
[INFO] [stdout] eb2e14460922790f25119e28f69510ecea31174c1bde7290a0705c7cb0cb140c