[INFO] cloning repository https://github.com/tomhosking/MarkovTrump
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomhosking/MarkovTrump" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomhosking%2FMarkovTrump", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomhosking%2FMarkovTrump'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 768c8f21f6edbc9a2ef3e0b1ab88a1041a2805f5
[INFO] checking tomhosking/MarkovTrump against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomhosking%2FMarkovTrump" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomhosking/MarkovTrump on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tomhosking/MarkovTrump
[INFO] finished tweaking git repo https://github.com/tomhosking/MarkovTrump
[INFO] tweaked toml for git repo https://github.com/tomhosking/MarkovTrump written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/tomhosking/MarkovTrump already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", 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] c3ca170ca928ff1781cff0d35a5d7a49923632fb9e1ed3d2482b92360cb06960
[INFO] running `Command { std: "docker" "start" "-a" "c3ca170ca928ff1781cff0d35a5d7a49923632fb9e1ed3d2482b92360cb06960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3ca170ca928ff1781cff0d35a5d7a49923632fb9e1ed3d2482b92360cb06960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3ca170ca928ff1781cff0d35a5d7a49923632fb9e1ed3d2482b92360cb06960", kill_on_drop: false }`
[INFO] [stdout] c3ca170ca928ff1781cff0d35a5d7a49923632fb9e1ed3d2482b92360cb06960
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 514fdc46ccb3fc8595eacead480ff05ed553f5d484e50511a828424e7431d63f
[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" "514fdc46ccb3fc8595eacead480ff05ed553f5d484e50511a828424e7431d63f", kill_on_drop: false }`
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking serde v1.0.11
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Checking generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         lazy_static! {
[INFO] [stdout] 41 | |             static ref RE_NONALPHA : regex::Regex = regex::Regex::new(r"[^A-Za-z\s@#_\-,!?.0-9]").unwrap();
[INFO] [stdout] 42 | |             static ref RE_URL : regex::Regex = regex::Regex::new(r"https?://[^\s]+").unwrap(); // This is very greedy!
[INFO] [stdout] 43 | |             static ref RE_TERMINATORS : regex::Regex = regex::Regex::new(r"([^A-Z])([!.?]+)(\s|$)").unwrap();
[INFO] [stdout] 44 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.60s
[INFO] running `Command { std: "docker" "inspect" "514fdc46ccb3fc8595eacead480ff05ed553f5d484e50511a828424e7431d63f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "514fdc46ccb3fc8595eacead480ff05ed553f5d484e50511a828424e7431d63f", kill_on_drop: false }`
[INFO] [stdout] 514fdc46ccb3fc8595eacead480ff05ed553f5d484e50511a828424e7431d63f