[INFO] crate paired 0.19.1 is already in cache
[INFO] checking paired-0.19.1 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate paired 0.19.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate paired 0.19.1 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate paired 0.19.1
[INFO] finished tweaking crates.io crate paired 0.19.1
[INFO] tweaked toml for crates.io crate paired 0.19.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4783c1a7579a04d8ab9d585940a58409546f38be9ad8bf05372012a493c3e3e
[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" "f4783c1a7579a04d8ab9d585940a58409546f38be9ad8bf05372012a493c3e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4783c1a7579a04d8ab9d585940a58409546f38be9ad8bf05372012a493c3e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4783c1a7579a04d8ab9d585940a58409546f38be9ad8bf05372012a493c3e3e", kill_on_drop: false }`
[INFO] [stdout] f4783c1a7579a04d8ab9d585940a58409546f38be9ad8bf05372012a493c3e3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5464fcc87d3858d9d8b33f15e540d4472cfd736c514ea50fb9fb1c21d78aa42c
[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" "5464fcc87d3858d9d8b33f15e540d4472cfd736c514ea50fb9fb1c21d78aa42c", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling fff v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling fff_derive v0.2.2
[INFO] [stderr]     Checking hkdf v0.8.0
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]     Checking sha2ni v0.8.5
[INFO] [stderr]     Checking groupy v0.3.1
[INFO] [stderr]     Checking paired v0.19.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.55
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.17s
[INFO] running `Command { std: "docker" "inspect" "5464fcc87d3858d9d8b33f15e540d4472cfd736c514ea50fb9fb1c21d78aa42c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5464fcc87d3858d9d8b33f15e540d4472cfd736c514ea50fb9fb1c21d78aa42c", kill_on_drop: false }`
[INFO] [stdout] 5464fcc87d3858d9d8b33f15e540d4472cfd736c514ea50fb9fb1c21d78aa42c