[INFO] cloning repository https://github.com/deifactor/clockwork-mage
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deifactor/clockwork-mage" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeifactor%2Fclockwork-mage", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeifactor%2Fclockwork-mage'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd33adabdf8d30278d82d2c4c61588324f2840cf
[INFO] checking deifactor/clockwork-mage against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeifactor%2Fclockwork-mage" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/deifactor/clockwork-mage on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/deifactor/clockwork-mage
[INFO] finished tweaking git repo https://github.com/deifactor/clockwork-mage
[INFO] tweaked toml for git repo https://github.com/deifactor/clockwork-mage written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/deifactor/clockwork-mage already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8db1fefc54c761b51c30fdd94cff3444b456068d13b997c50ca9ea57e5ef523
[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" "d8db1fefc54c761b51c30fdd94cff3444b456068d13b997c50ca9ea57e5ef523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8db1fefc54c761b51c30fdd94cff3444b456068d13b997c50ca9ea57e5ef523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8db1fefc54c761b51c30fdd94cff3444b456068d13b997c50ca9ea57e5ef523", kill_on_drop: false }`
[INFO] [stdout] d8db1fefc54c761b51c30fdd94cff3444b456068d13b997c50ca9ea57e5ef523
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cf3255de42ca73ca400401d56aa5a6a852bf5d8fd8f22c9576ef227cb61d3e4
[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" "8cf3255de42ca73ca400401d56aa5a6a852bf5d8fd8f22c9576ef227cb61d3e4", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking libflate v0.1.18
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking slog-scope v4.0.1
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking slog-kvfilter v0.7.0
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling trackable_derive v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking trackable v0.2.20
[INFO] [stderr]     Checking sloggers v0.3.0
[INFO] [stderr]     Checking clockwork-mage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `target`
[INFO] [stdout]   --> src/simulator.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     target: Target,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `event_log`
[INFO] [stdout]   --> src/simulator.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn event_log(&self) -> &Vec<Event> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `target`
[INFO] [stdout]   --> src/simulator.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     target: Target,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.50s
[INFO] running `Command { std: "docker" "inspect" "8cf3255de42ca73ca400401d56aa5a6a852bf5d8fd8f22c9576ef227cb61d3e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf3255de42ca73ca400401d56aa5a6a852bf5d8fd8f22c9576ef227cb61d3e4", kill_on_drop: false }`
[INFO] [stdout] 8cf3255de42ca73ca400401d56aa5a6a852bf5d8fd8f22c9576ef227cb61d3e4