[INFO] fetching crate ipv6_rs 0.1.0...
[INFO] testing ipv6_rs-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate ipv6_rs 0.1.0 into /workspace/builds/worker-3-tc1/source
[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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ipv6_rs 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 64 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 164f5ac6cfda288e0b64ade4239f7ce7357227530cdde4e80149e9044a64429c
[INFO] running `Command { std: "docker" "start" "-a" "164f5ac6cfda288e0b64ade4239f7ce7357227530cdde4e80149e9044a64429c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "164f5ac6cfda288e0b64ade4239f7ce7357227530cdde4e80149e9044a64429c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "164f5ac6cfda288e0b64ade4239f7ce7357227530cdde4e80149e9044a64429c", kill_on_drop: false }`
[INFO] [stdout] 164f5ac6cfda288e0b64ade4239f7ce7357227530cdde4e80149e9044a64429c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4ba23b6b35205756b303165cb1f057cd3fc64fd3add8d6822bf510505819188
[INFO] running `Command { std: "docker" "start" "-a" "e4ba23b6b35205756b303165cb1f057cd3fc64fd3add8d6822bf510505819188", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "e4ba23b6b35205756b303165cb1f057cd3fc64fd3add8d6822bf510505819188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4ba23b6b35205756b303165cb1f057cd3fc64fd3add8d6822bf510505819188", kill_on_drop: false }`
[INFO] [stdout] e4ba23b6b35205756b303165cb1f057cd3fc64fd3add8d6822bf510505819188
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b110b5006fee7e18f2421be7fcb8b2851b209a7b268f52cc70c956f064a571ab
[INFO] running `Command { std: "docker" "start" "-a" "b110b5006fee7e18f2421be7fcb8b2851b209a7b268f52cc70c956f064a571ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling csv-core v0.1.12
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[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]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling csv v1.3.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling 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]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.91s
[INFO] running `Command { std: "docker" "inspect" "b110b5006fee7e18f2421be7fcb8b2851b209a7b268f52cc70c956f064a571ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b110b5006fee7e18f2421be7fcb8b2851b209a7b268f52cc70c956f064a571ab", kill_on_drop: false }`
[INFO] [stdout] b110b5006fee7e18f2421be7fcb8b2851b209a7b268f52cc70c956f064a571ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 140468560ac7ca89f5796e0ee994a4e2c905e56d9af2fc140d40c5782a94f829
[INFO] running `Command { std: "docker" "start" "-a" "140468560ac7ca89f5796e0ee994a4e2c905e56d9af2fc140d40c5782a94f829", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `addr1` is never read
[INFO] [stderr]   --> src/helper.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |                 addr1 = addr1.replace(prefix, "");
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ipv6_rs` (lib) generated 1 warning
[INFO] [stderr] warning: `ipv6_rs` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ipv6_rs-0329327a54e62f3b)
[INFO] [stderr]    Doc-tests ipv6_rs
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "140468560ac7ca89f5796e0ee994a4e2c905e56d9af2fc140d40c5782a94f829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "140468560ac7ca89f5796e0ee994a4e2c905e56d9af2fc140d40c5782a94f829", kill_on_drop: false }`
[INFO] [stdout] 140468560ac7ca89f5796e0ee994a4e2c905e56d9af2fc140d40c5782a94f829