[INFO] cloning repository https://github.com/cjlucas/tracing-bug-poc [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cjlucas/tracing-bug-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjlucas%2Ftracing-bug-poc", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjlucas%2Ftracing-bug-poc'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ac2285be9160a08fb66e77b4a0fd538554c19b21 [INFO] checking cjlucas/tracing-bug-poc against master#9c3064e131f4939cc95a29bb11413c49bbda1491 for pr-144098 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjlucas%2Ftracing-bug-poc" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/cjlucas/tracing-bug-poc [INFO] finished tweaking git repo https://github.com/cjlucas/tracing-bug-poc [INFO] tweaked toml for git repo https://github.com/cjlucas/tracing-bug-poc written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/cjlucas/tracing-bug-poc on toolchain 9c3064e131f4939cc95a29bb11413c49bbda1491 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c3064e131f4939cc95a29bb11413c49bbda1491" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/cjlucas/tracing-bug-poc 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" "+9c3064e131f4939cc95a29bb11413c49bbda1491" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tracing-serde v0.1.0 [INFO] [stderr] Downloaded tracing-core v0.1.8 [INFO] [stderr] Downloaded sharded-slab v0.0.7 [INFO] [stderr] Downloaded serde v1.0.104 [INFO] [stderr] Downloaded tracing v0.1.11 [INFO] [stderr] Downloaded serde_json v1.0.44 [INFO] [stderr] Downloaded chrono v0.4.10 [INFO] [stderr] Downloaded regex-automata v0.1.8 [INFO] [stderr] Downloaded regex-syntax v0.6.12 [INFO] [stderr] Downloaded regex v1.3.1 [INFO] [stderr] Downloaded tracing-attributes v0.1.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+9c3064e131f4939cc95a29bb11413c49bbda1491" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 508652a302ff0f9d09be2cb34dc6a664fac8c803c1b1a6255fd8de9c2d860727 [INFO] running `Command { std: "docker" "start" "-a" "508652a302ff0f9d09be2cb34dc6a664fac8c803c1b1a6255fd8de9c2d860727", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "508652a302ff0f9d09be2cb34dc6a664fac8c803c1b1a6255fd8de9c2d860727", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "508652a302ff0f9d09be2cb34dc6a664fac8c803c1b1a6255fd8de9c2d860727", kill_on_drop: false }` [INFO] [stdout] 508652a302ff0f9d09be2cb34dc6a664fac8c803c1b1a6255fd8de9c2d860727 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+9c3064e131f4939cc95a29bb11413c49bbda1491" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bde22d9f806a4306c925f46744ef065dc83b3852dc361d000844c4c67694e3d7 [INFO] running `Command { std: "docker" "start" "-a" "bde22d9f806a4306c925f46744ef065dc83b3852dc361d000844c4c67694e3d7", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking tracing-core v0.1.8 [INFO] [stderr] Compiling ryu v1.0.2 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling num-traits v0.2.10 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Checking utf8-ranges v1.0.4 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Checking smallvec v0.6.13 [INFO] [stderr] Checking tracing-log v0.1.1 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking sharded-slab v0.0.7 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking chrono v0.4.10 [INFO] [stderr] Checking regex-automata v0.1.8 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking tracing-serde v0.1.0 [INFO] [stderr] Checking serde_json v1.0.44 [INFO] [stderr] Checking tracing-subscriber v0.2.0-alpha.2 (/opt/rustwide/workdir/tracing-subscriber) [INFO] [stdout] warning: lint `const_err` has been removed: converted into hard error, see issue #71800 for more information [INFO] [stdout] --> tracing-subscriber/src/lib.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 61 | const_err, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(renamed_and_removed_lints)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lint `legacy_directory_ownership` has been removed: converted into hard error, see issue #37872 for more information [INFO] [stdout] --> tracing-subscriber/src/lib.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 64 | legacy_directory_ownership, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lint `plugin_as_library` has been removed: plugins have been deprecated and retired [INFO] [stdout] --> tracing-subscriber/src/lib.rs:70:5 [INFO] [stdout] | [INFO] [stdout] 70 | plugin_as_library, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lint `private_in_public` has been removed: replaced with another group of lints, see RFC for more information [INFO] [stdout] --> tracing-subscriber/src/lib.rs:71:5 [INFO] [stdout] | [INFO] [stdout] 71 | private_in_public, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lint `safe_extern_statics` has been removed: converted into hard error, see issue #36247 for more information [INFO] [stdout] --> tracing-subscriber/src/lib.rs:72:5 [INFO] [stdout] | [INFO] [stdout] 72 | safe_extern_statics, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules [INFO] [stdout] --> tracing-subscriber/src/lib.rs:82:1 [INFO] [stdout] | [INFO] [stdout] 82 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> tracing-subscriber/src/lib.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | unused, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] = note: `#[warn(unused_attributes)]` implied by `#[warn(unused)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> tracing-subscriber/src/reload.rs:231:23 [INFO] [stdout] | [INFO] [stdout] 231 | error::Error::description(self).fmt(f) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> tracing-subscriber/src/filter/env/mod.rs:358:42 [INFO] [stdout] | [INFO] [stdout] 358 | ErrorKind::Parse(ref p) => p.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> tracing-subscriber/src/filter/env/mod.rs:359:40 [INFO] [stdout] | [INFO] [stdout] 359 | ErrorKind::Env(ref e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> tracing-subscriber/src/registry/mod.rs:149:14 [INFO] [stdout] | [INFO] [stdout] 149 | fn span(&'a self, id: &Id) -> Option> [INFO] [stdout] | ^^ -- the lifetime gets resolved as `'a` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 149 - fn span(&'a self, id: &Id) -> Option> [INFO] [stdout] 149 + fn span(&'a self, id: &Id) -> Option> [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tracing-attributes v0.1.6 [INFO] [stderr] Checking tracing v0.1.11 [INFO] [stderr] Checking tracing-bug-poc v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.73s [INFO] running `Command { std: "docker" "inspect" "bde22d9f806a4306c925f46744ef065dc83b3852dc361d000844c4c67694e3d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bde22d9f806a4306c925f46744ef065dc83b3852dc361d000844c4c67694e3d7", kill_on_drop: false }` [INFO] [stdout] bde22d9f806a4306c925f46744ef065dc83b3852dc361d000844c4c67694e3d7