[INFO] crate ipv6_rs 0.1.0 is already in cache
[INFO] testing ipv6_rs-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate ipv6_rs 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate ipv6_rs 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", 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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a60220917c18d5f98d1263a98b2fe859e3df064c9887a81e4cee47439d9d3147
[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" "a60220917c18d5f98d1263a98b2fe859e3df064c9887a81e4cee47439d9d3147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a60220917c18d5f98d1263a98b2fe859e3df064c9887a81e4cee47439d9d3147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a60220917c18d5f98d1263a98b2fe859e3df064c9887a81e4cee47439d9d3147", kill_on_drop: false }`
[INFO] [stdout] a60220917c18d5f98d1263a98b2fe859e3df064c9887a81e4cee47439d9d3147
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d438ac89727089d2d4da8466116d2b194573df5f03021e2be79320f343640389
[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" "d438ac89727089d2d4da8466116d2b194573df5f03021e2be79320f343640389", 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]    = 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 0.51s
[INFO] running `Command { std: "docker" "inspect" "d438ac89727089d2d4da8466116d2b194573df5f03021e2be79320f343640389", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d438ac89727089d2d4da8466116d2b194573df5f03021e2be79320f343640389", kill_on_drop: false }`
[INFO] [stdout] d438ac89727089d2d4da8466116d2b194573df5f03021e2be79320f343640389
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ee7fbf0f03dd02492ae887917ceda0d41307d6e98d6ba1f149eb426f4d1a2a5
[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" "0ee7fbf0f03dd02492ae887917ceda0d41307d6e98d6ba1f149eb426f4d1a2a5", kill_on_drop: false }`
[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]    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]    = 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 test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "0ee7fbf0f03dd02492ae887917ceda0d41307d6e98d6ba1f149eb426f4d1a2a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ee7fbf0f03dd02492ae887917ceda0d41307d6e98d6ba1f149eb426f4d1a2a5", kill_on_drop: false }`
[INFO] [stdout] 0ee7fbf0f03dd02492ae887917ceda0d41307d6e98d6ba1f149eb426f4d1a2a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4a529b94b329efdb01204f02de38ce7eff10a1b2ebc940ea5624d75d7c94b2ae
[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" "4a529b94b329efdb01204f02de38ce7eff10a1b2ebc940ea5624d75d7c94b2ae", 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]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ipv6_rs-11583af9ba624f41
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ipv6_rs
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4a529b94b329efdb01204f02de38ce7eff10a1b2ebc940ea5624d75d7c94b2ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a529b94b329efdb01204f02de38ce7eff10a1b2ebc940ea5624d75d7c94b2ae", kill_on_drop: false }`
[INFO] [stdout] 4a529b94b329efdb01204f02de38ce7eff10a1b2ebc940ea5624d75d7c94b2ae