[INFO] cloning repository https://github.com/kimrutherford/pombase_rc_string
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kimrutherford/pombase_rc_string" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimrutherford%2Fpombase_rc_string", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimrutherford%2Fpombase_rc_string'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cabbbc21a834a7b23adb5552fab390db75310568
[INFO] checking kimrutherford/pombase_rc_string against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimrutherford%2Fpombase_rc_string" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kimrutherford/pombase_rc_string on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kimrutherford/pombase_rc_string
[INFO] finished tweaking git repo https://github.com/kimrutherford/pombase_rc_string
[INFO] tweaked toml for git repo https://github.com/kimrutherford/pombase_rc_string written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kimrutherford/pombase_rc_string already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded version_check v0.1.4
[INFO] [stderr]   Downloaded lazy_static v1.1.0
[INFO] [stderr]   Downloaded unicode-xid v0.1.0
[INFO] [stderr]   Downloaded quote v0.6.8
[INFO] [stderr]   Downloaded itoa v0.4.2
[INFO] [stderr]   Downloaded proc-macro2 v0.4.13
[INFO] [stderr]   Downloaded serde_json v1.0.26
[INFO] [stderr]   Downloaded syn v0.14.9
[INFO] [stderr]   Downloaded ryu v0.2.5
[INFO] [stderr]   Downloaded weak-table v0.2.3
[INFO] [stderr]   Downloaded serde_derive v1.0.75
[INFO] [stderr]   Downloaded serde v1.0.75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2aa59433e3ae91550150b441aa12e6707bc818fa7bd81e6f10d533daf365686f
[INFO] running `Command { std: "docker" "start" "-a" "2aa59433e3ae91550150b441aa12e6707bc818fa7bd81e6f10d533daf365686f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2aa59433e3ae91550150b441aa12e6707bc818fa7bd81e6f10d533daf365686f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aa59433e3ae91550150b441aa12e6707bc818fa7bd81e6f10d533daf365686f", kill_on_drop: false }`
[INFO] [stdout] 2aa59433e3ae91550150b441aa12e6707bc818fa7bd81e6f10d533daf365686f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b5c387f66c6b7e2cf23e2293d0233104b39448c8273f208d740f28662e069f6
[INFO] running `Command { std: "docker" "start" "-a" "9b5c387f66c6b7e2cf23e2293d0233104b39448c8273f208d740f28662e069f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling ryu v0.2.5
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling serde v1.0.75
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]     Checking weak-table v0.2.3
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling serde_derive v1.0.75
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking pombase_rc_string v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: static variable `cache` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     static ref cache: Mutex<WeakHashSet<Weak<String>>> = Mutex::new(WeakHashSet::new());
[INFO] [stdout]    |                ^^^^^ help: convert the identifier to upper case: `CACHE`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `cache` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     static ref cache: Mutex<WeakHashSet<Weak<String>>> = Mutex::new(WeakHashSet::new());
[INFO] [stdout]    |                ^^^^^ help: convert the identifier to upper case: `CACHE`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.18s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "9b5c387f66c6b7e2cf23e2293d0233104b39448c8273f208d740f28662e069f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b5c387f66c6b7e2cf23e2293d0233104b39448c8273f208d740f28662e069f6", kill_on_drop: false }`
[INFO] [stdout] 9b5c387f66c6b7e2cf23e2293d0233104b39448c8273f208d740f28662e069f6