[INFO] cloning repository https://github.com/bryanburgers/tracing-blog-post [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bryanburgers/tracing-blog-post" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryanburgers%2Ftracing-blog-post", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryanburgers%2Ftracing-blog-post'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2545a37292675fb3ffd2af8deacd9a62a5b24b69 [INFO] checking bryanburgers/tracing-blog-post against try#bf5ff6675cf10ce009ac02007b064a7cfc4509ac for pr-140558 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryanburgers%2Ftracing-blog-post" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bryanburgers/tracing-blog-post on toolchain bf5ff6675cf10ce009ac02007b064a7cfc4509ac [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bryanburgers/tracing-blog-post [INFO] finished tweaking git repo https://github.com/bryanburgers/tracing-blog-post [INFO] tweaked toml for git repo https://github.com/bryanburgers/tracing-blog-post written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/bryanburgers/tracing-blog-post 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" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2da1c26c22c9ac11992c17fe80330dd32d3f4af3c0d572d63ea2e8408cc38f8a [INFO] running `Command { std: "docker" "start" "-a" "2da1c26c22c9ac11992c17fe80330dd32d3f4af3c0d572d63ea2e8408cc38f8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2da1c26c22c9ac11992c17fe80330dd32d3f4af3c0d572d63ea2e8408cc38f8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2da1c26c22c9ac11992c17fe80330dd32d3f4af3c0d572d63ea2e8408cc38f8a", kill_on_drop: false }` [INFO] [stdout] 2da1c26c22c9ac11992c17fe80330dd32d3f4af3c0d572d63ea2e8408cc38f8a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] acd5e32b4c3b8765302926146ec99521af1a573db90cfafab041f8e29d75936a [INFO] running `Command { std: "docker" "start" "-a" "acd5e32b4c3b8765302926146ec99521af1a573db90cfafab041f8e29d75936a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.80 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Compiling serde_json v1.0.68 [INFO] [stderr] Checking smallvec v1.7.0 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Checking tracing-core v0.1.21 [INFO] [stderr] Checking sharded-slab v0.1.3 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Checking tracing-subscriber v0.3.0 [INFO] [stderr] Compiling tracing-attributes v0.1.18 [INFO] [stderr] Checking tracing v0.1.29 [INFO] [stderr] Checking tracing-blog-post v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/figure_8/custom_layer.rs:93:27 [INFO] [stdout] | [INFO] [stdout] 93 | struct CustomFieldStorage(BTreeMap); [INFO] [stdout] | ------------------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `CustomFieldStorage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.10s [INFO] running `Command { std: "docker" "inspect" "acd5e32b4c3b8765302926146ec99521af1a573db90cfafab041f8e29d75936a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "acd5e32b4c3b8765302926146ec99521af1a573db90cfafab041f8e29d75936a", kill_on_drop: false }` [INFO] [stdout] acd5e32b4c3b8765302926146ec99521af1a573db90cfafab041f8e29d75936a