[INFO] cloning repository https://github.com/rigelrozanski/dicedemon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rigelrozanski/dicedemon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frigelrozanski%2Fdicedemon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frigelrozanski%2Fdicedemon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02fcdf40e827e1eba2e4f66b15c1307b37fd1933
[INFO] testing rigelrozanski/dicedemon against master#404c8471aba60c2d837fa728e7c729a0f52d5830 for pr-87041-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frigelrozanski%2Fdicedemon" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rigelrozanski/dicedemon on toolchain 404c8471aba60c2d837fa728e7c729a0f52d5830
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+404c8471aba60c2d837fa728e7c729a0f52d5830" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rigelrozanski/dicedemon
[INFO] finished tweaking git repo https://github.com/rigelrozanski/dicedemon
[INFO] tweaked toml for git repo https://github.com/rigelrozanski/dicedemon written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/rigelrozanski/dicedemon already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+404c8471aba60c2d837fa728e7c729a0f52d5830" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+404c8471aba60c2d837fa728e7c729a0f52d5830" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf978b4a48c4463365b9213a08864c356b371a53a3cc2d423f610b710e83dc56
[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" "cf978b4a48c4463365b9213a08864c356b371a53a3cc2d423f610b710e83dc56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf978b4a48c4463365b9213a08864c356b371a53a3cc2d423f610b710e83dc56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf978b4a48c4463365b9213a08864c356b371a53a3cc2d423f610b710e83dc56", kill_on_drop: false }`
[INFO] [stdout] cf978b4a48c4463365b9213a08864c356b371a53a3cc2d423f610b710e83dc56
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+404c8471aba60c2d837fa728e7c729a0f52d5830" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] efe91a6b65197992421dfff3c17ccb9433c328f57bb1f7c45ba7f4d5849f5ae3
[INFO] running `Command { std: "docker" "start" "-a" "efe91a6b65197992421dfff3c17ccb9433c328f57bb1f7c45ba7f4d5849f5ae3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling untrusted v0.5.1
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling data-encoding v2.1.1
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling bitreader v0.3.1
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling syn v0.12.13
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling clap v2.30.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling structopt-derive v0.2.3
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]    Compiling structopt v0.2.3
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling bip39 v0.5.0
[INFO] [stderr]    Compiling dicedemon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/main.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     &to_validate.extend(entropy_hash_to_validate_bits.into_iter().take(target_mnemonic.checksum_bits()));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let _ = &to_validate.extend(entropy_hash_to_validate_bits.into_iter().take(target_mnemonic.checksum_bits()));
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.02s
[INFO] running `Command { std: "docker" "inspect" "efe91a6b65197992421dfff3c17ccb9433c328f57bb1f7c45ba7f4d5849f5ae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efe91a6b65197992421dfff3c17ccb9433c328f57bb1f7c45ba7f4d5849f5ae3", kill_on_drop: false }`
[INFO] [stdout] efe91a6b65197992421dfff3c17ccb9433c328f57bb1f7c45ba7f4d5849f5ae3
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+404c8471aba60c2d837fa728e7c729a0f52d5830" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 238a825607c0be4fdbbcda6fa0e85df3d919e219ba4b6647f74332e500900854
[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" "238a825607c0be4fdbbcda6fa0e85df3d919e219ba4b6647f74332e500900854", kill_on_drop: false }`
[INFO] [stderr]    Compiling dicedemon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/main.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     &to_validate.extend(entropy_hash_to_validate_bits.into_iter().take(target_mnemonic.checksum_bits()));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let _ = &to_validate.extend(entropy_hash_to_validate_bits.into_iter().take(target_mnemonic.checksum_bits()));
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "238a825607c0be4fdbbcda6fa0e85df3d919e219ba4b6647f74332e500900854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "238a825607c0be4fdbbcda6fa0e85df3d919e219ba4b6647f74332e500900854", kill_on_drop: false }`
[INFO] [stdout] 238a825607c0be4fdbbcda6fa0e85df3d919e219ba4b6647f74332e500900854
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+404c8471aba60c2d837fa728e7c729a0f52d5830" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5a8f5ef73293fb904202f4ce471095909f42c051b333cc4a5955cf59f79ed92c
[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" "5a8f5ef73293fb904202f4ce471095909f42c051b333cc4a5955cf59f79ed92c", kill_on_drop: false }`
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/main.rs:110:5
[INFO] [stderr]     |
[INFO] [stderr] 110 |     &to_validate.extend(entropy_hash_to_validate_bits.into_iter().take(target_mnemonic.checksum_bits()));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 110 |     let _ = &to_validate.extend(entropy_hash_to_validate_bits.into_iter().take(target_mnemonic.checksum_bits()));
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `dicedemon` (bin "dicedemon" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dicedemon-e7ac789f9bc170dc)
[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" "5a8f5ef73293fb904202f4ce471095909f42c051b333cc4a5955cf59f79ed92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a8f5ef73293fb904202f4ce471095909f42c051b333cc4a5955cf59f79ed92c", kill_on_drop: false }`
[INFO] [stdout] 5a8f5ef73293fb904202f4ce471095909f42c051b333cc4a5955cf59f79ed92c