[INFO] cloning repository https://github.com/divieurora/tutorial8-subscriber
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/divieurora/tutorial8-subscriber" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivieurora%2Ftutorial8-subscriber", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivieurora%2Ftutorial8-subscriber'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4965d579146c72c7220431d3adc000588bf4f22d
[INFO] checking divieurora/tutorial8-subscriber against try#6cbf54b1453b438241487f195740266bb9d8c8ba for pr-139587-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivieurora%2Ftutorial8-subscriber" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
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[INFO] validating manifest of git repo https://github.com/divieurora/tutorial8-subscriber on toolchain 6cbf54b1453b438241487f195740266bb9d8c8ba
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/divieurora/tutorial8-subscriber
[INFO] finished tweaking git repo https://github.com/divieurora/tutorial8-subscriber
[INFO] tweaked toml for git repo https://github.com/divieurora/tutorial8-subscriber written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/divieurora/tutorial8-subscriber 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" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfda4d1fec349c4e13225f1be4d3bbabc6673d532c9963c283326eb75831499e
[INFO] running `Command { std: "docker" "start" "-a" "bfda4d1fec349c4e13225f1be4d3bbabc6673d532c9963c283326eb75831499e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfda4d1fec349c4e13225f1be4d3bbabc6673d532c9963c283326eb75831499e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfda4d1fec349c4e13225f1be4d3bbabc6673d532c9963c283326eb75831499e", kill_on_drop: false }`
[INFO] [stdout] bfda4d1fec349c4e13225f1be4d3bbabc6673d532c9963c283326eb75831499e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e42c8b7e39cbb20d7c2e175a6188a03485715c5e804f52471ac36992cb842c97
[INFO] running `Command { std: "docker" "start" "-a" "e42c8b7e39cbb20d7c2e175a6188a03485715c5e804f52471ac36992cb842c97", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
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[INFO] [stderr]    Compiling serde v1.0.198
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[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]     Checking amq-protocol-types v1.2.0
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[INFO] [stderr]    Compiling cargo-lock v8.0.3
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[INFO] [stderr]    Compiling borsh-derive v0.9.3
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[INFO] [stderr]     Checking crosstown_bus v0.5.3
[INFO] [stderr]     Checking subscriber v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/main.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let now = time::Instant::now();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/main.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let now = time::Instant::now();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 53.15s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "e42c8b7e39cbb20d7c2e175a6188a03485715c5e804f52471ac36992cb842c97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e42c8b7e39cbb20d7c2e175a6188a03485715c5e804f52471ac36992cb842c97", kill_on_drop: false }`
[INFO] [stdout] e42c8b7e39cbb20d7c2e175a6188a03485715c5e804f52471ac36992cb842c97