[INFO] fetching crate twox-hash 1.5.0...
[INFO] checking twox-hash-1.5.0 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate twox-hash 1.5.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate twox-hash 1.5.0 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twox-hash 1.5.0
[INFO] finished tweaking crates.io crate twox-hash 1.5.0
[INFO] tweaked toml for crates.io crate twox-hash 1.5.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate twox-hash 1.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.98
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.5
[INFO] [stderr]   Downloaded typenum v1.10.0
[INFO] [stderr]   Downloaded getrandom v0.1.8
[INFO] [stderr]   Downloaded lazy_static v1.3.0
[INFO] [stderr]   Downloaded itoa v0.4.4
[INFO] [stderr]   Downloaded syn v0.15.42
[INFO] [stderr]   Downloaded ryu v1.0.0
[INFO] [stderr]   Downloaded serde v1.0.98
[INFO] [stderr]   Downloaded rand_core v0.5.0
[INFO] [stderr]   Downloaded c2-chacha v0.2.2
[INFO] [stderr]   Downloaded libc v0.2.60
[INFO] [stderr]   Downloaded rand v0.7.0
[INFO] [stderr]   Downloaded serde_json v1.0.40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95ec1d702bfe70c748fea52bd93812ecf1a55a983d0466e475f41dabe8412b78
[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" "95ec1d702bfe70c748fea52bd93812ecf1a55a983d0466e475f41dabe8412b78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95ec1d702bfe70c748fea52bd93812ecf1a55a983d0466e475f41dabe8412b78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95ec1d702bfe70c748fea52bd93812ecf1a55a983d0466e475f41dabe8412b78", kill_on_drop: false }`
[INFO] [stdout] 95ec1d702bfe70c748fea52bd93812ecf1a55a983d0466e475f41dabe8412b78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 994ff50326ccf0500e944d2cea5e6b79dd376472f7eaaca0eb5b978e9fb8fa7f
[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" "994ff50326ccf0500e944d2cea5e6b79dd376472f7eaaca0eb5b978e9fb8fa7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.8
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking twox-hash v1.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.92s
[INFO] running `Command { std: "docker" "inspect" "994ff50326ccf0500e944d2cea5e6b79dd376472f7eaaca0eb5b978e9fb8fa7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "994ff50326ccf0500e944d2cea5e6b79dd376472f7eaaca0eb5b978e9fb8fa7f", kill_on_drop: false }`
[INFO] [stdout] 994ff50326ccf0500e944d2cea5e6b79dd376472f7eaaca0eb5b978e9fb8fa7f