[INFO] cloning repository https://github.com/rust-cas/rust_cas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-cas/rust_cas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-cas%2Frust_cas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-cas%2Frust_cas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24daf69a3159c25ee3ba7b12538ca6a1f84851ca
[INFO] testing rust-cas/rust_cas against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-cas%2Frust_cas" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-cas/rust_cas on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rust-cas/rust_cas
[INFO] finished tweaking git repo https://github.com/rust-cas/rust_cas
[INFO] tweaked toml for git repo https://github.com/rust-cas/rust_cas written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-cas/rust_cas already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.9.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] [stderr]   Downloaded regex v1.3.7
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b513196a4f0b946c2fa0a5f9844adaffe2b8cdf7e5b416ec2e6b31137454dc7
[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" "7b513196a4f0b946c2fa0a5f9844adaffe2b8cdf7e5b416ec2e6b31137454dc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b513196a4f0b946c2fa0a5f9844adaffe2b8cdf7e5b416ec2e6b31137454dc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b513196a4f0b946c2fa0a5f9844adaffe2b8cdf7e5b416ec2e6b31137454dc7", kill_on_drop: false }`
[INFO] [stdout] 7b513196a4f0b946c2fa0a5f9844adaffe2b8cdf7e5b416ec2e6b31137454dc7
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9c22ed418f934f398d541fdc74045a5bec7a6654536b58f6c6989a6c077bcd1
[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" "b9c22ed418f934f398d541fdc74045a5bec7a6654536b58f6c6989a6c077bcd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling rust_cas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/main.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt::{Formatter, Debug, Display};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_power`
[INFO] [stdout]    --> src/main.rs:418:8
[INFO] [stdout]     |
[INFO] [stdout] 418 |     fn is_power(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.85s
[INFO] running `Command { std: "docker" "inspect" "b9c22ed418f934f398d541fdc74045a5bec7a6654536b58f6c6989a6c077bcd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9c22ed418f934f398d541fdc74045a5bec7a6654536b58f6c6989a6c077bcd1", kill_on_drop: false }`
[INFO] [stdout] b9c22ed418f934f398d541fdc74045a5bec7a6654536b58f6c6989a6c077bcd1
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] 38ba959634f51e5cb723730041895d90cfca24a6a07b3cdefef9d41dadab1443
[INFO] running `Command { std: "docker" "start" "-a" "38ba959634f51e5cb723730041895d90cfca24a6a07b3cdefef9d41dadab1443", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_cas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/main.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt::{Formatter, Debug, Display};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_power`
[INFO] [stdout]    --> src/main.rs:418:8
[INFO] [stdout]     |
[INFO] [stdout] 418 |     fn is_power(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "38ba959634f51e5cb723730041895d90cfca24a6a07b3cdefef9d41dadab1443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38ba959634f51e5cb723730041895d90cfca24a6a07b3cdefef9d41dadab1443", kill_on_drop: false }`
[INFO] [stdout] 38ba959634f51e5cb723730041895d90cfca24a6a07b3cdefef9d41dadab1443
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] 4f3a28959b77427f4a5a8334411e437709b72920850f5884c14e56eb3d7f4bff
[INFO] running `Command { std: "docker" "start" "-a" "4f3a28959b77427f4a5a8334411e437709b72920850f5884c14e56eb3d7f4bff", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Display`
[INFO] [stderr]  --> src/main.rs:6:34
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fmt::{Formatter, Debug, Display};
[INFO] [stderr]   |                                  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_power`
[INFO] [stderr]    --> src/main.rs:418:8
[INFO] [stderr]     |
[INFO] [stderr] 418 |     fn is_power(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_cas-e90891a3c7e1e675
[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" "4f3a28959b77427f4a5a8334411e437709b72920850f5884c14e56eb3d7f4bff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f3a28959b77427f4a5a8334411e437709b72920850f5884c14e56eb3d7f4bff", kill_on_drop: false }`
[INFO] [stdout] 4f3a28959b77427f4a5a8334411e437709b72920850f5884c14e56eb3d7f4bff