[INFO] fetching crate ipv6_rs 0.1.0...
[INFO] checking ipv6_rs-0.1.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate ipv6_rs 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ipv6_rs 0.1.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ipv6_rs 0.1.0
[INFO] finished tweaking crates.io crate ipv6_rs 0.1.0
[INFO] tweaked toml for crates.io crate ipv6_rs 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--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" "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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0538fbb25e67a0ea65ba973fc273d47b0be9deaf7c053a48e9e0a2376c7591b7
[INFO] running `Command { std: "docker" "start" "-a" "0538fbb25e67a0ea65ba973fc273d47b0be9deaf7c053a48e9e0a2376c7591b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0538fbb25e67a0ea65ba973fc273d47b0be9deaf7c053a48e9e0a2376c7591b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0538fbb25e67a0ea65ba973fc273d47b0be9deaf7c053a48e9e0a2376c7591b7", kill_on_drop: false }`
[INFO] [stdout] 0538fbb25e67a0ea65ba973fc273d47b0be9deaf7c053a48e9e0a2376c7591b7
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac61b77b27c9b51555e5502c6ea8f2977f2ba82d27741ebd32854dbf4526ade1
[INFO] running `Command { std: "docker" "start" "-a" "ac61b77b27c9b51555e5502c6ea8f2977f2ba82d27741ebd32854dbf4526ade1", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking ipv6_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `addr1` is never read
[INFO] [stdout]   --> src/helper.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 addr1 = addr1.replace(prefix, "");
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stdout] warning: value assigned to `addr1` is never read
[INFO] [stdout]   --> src/helper.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 addr1 = addr1.replace(prefix, "");
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.27s
[INFO] running `Command { std: "docker" "inspect" "ac61b77b27c9b51555e5502c6ea8f2977f2ba82d27741ebd32854dbf4526ade1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac61b77b27c9b51555e5502c6ea8f2977f2ba82d27741ebd32854dbf4526ade1", kill_on_drop: false }`
[INFO] [stdout] ac61b77b27c9b51555e5502c6ea8f2977f2ba82d27741ebd32854dbf4526ade1