[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 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-cas%2Frust_cas" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-cas/rust_cas on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-28/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" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cee5d85dd8f620dccd57cfe2e116270cec4ddeddb2bf7b6190991f56912bf9c2
[INFO] running `Command { std: "docker" "start" "-a" "cee5d85dd8f620dccd57cfe2e116270cec4ddeddb2bf7b6190991f56912bf9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cee5d85dd8f620dccd57cfe2e116270cec4ddeddb2bf7b6190991f56912bf9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cee5d85dd8f620dccd57cfe2e116270cec4ddeddb2bf7b6190991f56912bf9c2", kill_on_drop: false }`
[INFO] [stdout] cee5d85dd8f620dccd57cfe2e116270cec4ddeddb2bf7b6190991f56912bf9c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9db047e1dcacc9c9909e50e905f5c0fb3cd9dad34a35f04fed40fd2e29c52cc2
[INFO] running `Command { std: "docker" "start" "-a" "9db047e1dcacc9c9909e50e905f5c0fb3cd9dad34a35f04fed40fd2e29c52cc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling itertools v0.9.0
[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 7.32s
[INFO] running `Command { std: "docker" "inspect" "9db047e1dcacc9c9909e50e905f5c0fb3cd9dad34a35f04fed40fd2e29c52cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9db047e1dcacc9c9909e50e905f5c0fb3cd9dad34a35f04fed40fd2e29c52cc2", kill_on_drop: false }`
[INFO] [stdout] 9db047e1dcacc9c9909e50e905f5c0fb3cd9dad34a35f04fed40fd2e29c52cc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4549bf74a9917ad228adf2b580e7e43dc33daa4fda51f6515df80e89188681a
[INFO] running `Command { std: "docker" "start" "-a" "b4549bf74a9917ad228adf2b580e7e43dc33daa4fda51f6515df80e89188681a", 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 0.78s
[INFO] running `Command { std: "docker" "inspect" "b4549bf74a9917ad228adf2b580e7e43dc33daa4fda51f6515df80e89188681a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4549bf74a9917ad228adf2b580e7e43dc33daa4fda51f6515df80e89188681a", kill_on_drop: false }`
[INFO] [stdout] b4549bf74a9917ad228adf2b580e7e43dc33daa4fda51f6515df80e89188681a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 98cfeeb8ed513e75e776fb04a009dfb7e35e427aa6306f4c0484f5a266cbfb51
[INFO] running `Command { std: "docker" "start" "-a" "98cfeeb8ed513e75e776fb04a009dfb7e35e427aa6306f4c0484f5a266cbfb51", 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: `rust_cas` (bin "rust_cas" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_cas-cb7475f59f9eca26)
[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" "98cfeeb8ed513e75e776fb04a009dfb7e35e427aa6306f4c0484f5a266cbfb51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98cfeeb8ed513e75e776fb04a009dfb7e35e427aa6306f4c0484f5a266cbfb51", kill_on_drop: false }`
[INFO] [stdout] 98cfeeb8ed513e75e776fb04a009dfb7e35e427aa6306f4c0484f5a266cbfb51