[INFO] fetching crate tracing-callgraph 0.1.0-alpha.1...
[INFO] checking tracing-callgraph-0.1.0-alpha.1 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate tracing-callgraph 0.1.0-alpha.1 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate tracing-callgraph 0.1.0-alpha.1 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-callgraph 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate tracing-callgraph 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate tracing-callgraph 0.1.0-alpha.1 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] crate crates.io crate tracing-callgraph 0.1.0-alpha.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-core v0.1.12
[INFO] [stderr]   Downloaded hashbrown v0.8.1
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.10
[INFO] [stderr]   Downloaded indexmap v1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a3ce69ce1ab75f70b3a11f3ab0cac49c3293018b001e92c5cb93c711fe1cef0
[INFO] running `Command { std: "docker" "start" "-a" "2a3ce69ce1ab75f70b3a11f3ab0cac49c3293018b001e92c5cb93c711fe1cef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a3ce69ce1ab75f70b3a11f3ab0cac49c3293018b001e92c5cb93c711fe1cef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a3ce69ce1ab75f70b3a11f3ab0cac49c3293018b001e92c5cb93c711fe1cef0", kill_on_drop: false }`
[INFO] [stdout] 2a3ce69ce1ab75f70b3a11f3ab0cac49c3293018b001e92c5cb93c711fe1cef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a36096277157d2f24bc800a46504fc5a1ac082b721d02042d638e4981427a6f
[INFO] running `Command { std: "docker" "start" "-a" "0a36096277157d2f24bc800a46504fc5a1ac082b721d02042d638e4981427a6f", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   tracing-subscriber v0.2.10: registry, sharded-slab
[INFO] [stderr] 
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]     Checking tracing-core v0.1.12
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]     Checking tracing-subscriber v0.2.10
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]     Checking tracing v0.1.18
[INFO] [stderr]     Checking tracing-callgraph v0.1.0-alpha.1 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/basic.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.21s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking tracing-callgraph v0.1.0-alpha.1 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "0a36096277157d2f24bc800a46504fc5a1ac082b721d02042d638e4981427a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a36096277157d2f24bc800a46504fc5a1ac082b721d02042d638e4981427a6f", kill_on_drop: false }`
[INFO] [stdout] 0a36096277157d2f24bc800a46504fc5a1ac082b721d02042d638e4981427a6f