[INFO] cloning repository https://github.com/joshuahenderson-nec/hangman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joshuahenderson-nec/hangman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuahenderson-nec%2Fhangman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuahenderson-nec%2Fhangman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dade973186685dc8435d4918da0636fe6ff2dbf1
[INFO] checking joshuahenderson-nec/hangman against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuahenderson-nec%2Fhangman" "/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/joshuahenderson-nec/hangman on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joshuahenderson-nec/hangman
[INFO] finished tweaking git repo https://github.com/joshuahenderson-nec/hangman
[INFO] tweaked toml for git repo https://github.com/joshuahenderson-nec/hangman written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/joshuahenderson-nec/hangman already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfbfe58b988ac24a5dc7c4122649fd3d520ee8a7c4232ec016e31ec99e1e8020
[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" "bfbfe58b988ac24a5dc7c4122649fd3d520ee8a7c4232ec016e31ec99e1e8020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfbfe58b988ac24a5dc7c4122649fd3d520ee8a7c4232ec016e31ec99e1e8020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfbfe58b988ac24a5dc7c4122649fd3d520ee8a7c4232ec016e31ec99e1e8020", kill_on_drop: false }`
[INFO] [stdout] bfbfe58b988ac24a5dc7c4122649fd3d520ee8a7c4232ec016e31ec99e1e8020
[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=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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] b536e289039ebcb2e75cfc887f139f0c9cec446a2ff79077ea8d3532f98be15e
[INFO] running `Command { std: "docker" "start" "-a" "b536e289039ebcb2e75cfc887f139f0c9cec446a2ff79077ea8d3532f98be15e", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.24
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking hangman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/dictionary.rs:36:77
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     Err(why) => panic!("Couldn't read {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/dictionary.rs:40:69
[INFO] [stdout]    |
[INFO] [stdout] 40 |             Err(why) => panic!("Couldn't open {}: {}", display, why.description())
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/dictionary.rs:36:77
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     Err(why) => panic!("Couldn't read {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/dictionary.rs:40:69
[INFO] [stdout]    |
[INFO] [stdout] 40 |             Err(why) => panic!("Couldn't open {}: {}", display, why.description())
[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 2.02s
[INFO] running `Command { std: "docker" "inspect" "b536e289039ebcb2e75cfc887f139f0c9cec446a2ff79077ea8d3532f98be15e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b536e289039ebcb2e75cfc887f139f0c9cec446a2ff79077ea8d3532f98be15e", kill_on_drop: false }`
[INFO] [stdout] b536e289039ebcb2e75cfc887f139f0c9cec446a2ff79077ea8d3532f98be15e