[INFO] fetching crate tracers 0.1.0...
[INFO] checking tracers-0.1.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate tracers 0.1.0 into /workspace/builds/worker-35/source
[INFO] validating manifest of crates.io crate tracers 0.1.0 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 tracers 0.1.0
[INFO] finished tweaking crates.io crate tracers 0.1.0
[INFO] tweaked toml for crates.io crate tracers 0.1.0 written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate crates.io crate tracers 0.1.0 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]     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 nom v5.0.1
[INFO] [stderr]   Downloaded criterion v0.3.0
[INFO] [stderr]   Downloaded rand_os v0.2.2
[INFO] [stderr]   Downloaded rand_xoshiro v0.3.1
[INFO] [stderr]   Downloaded tracers-dyn-noop v0.1.0
[INFO] [stderr]   Downloaded tracers-macros-hack v0.1.0
[INFO] [stderr]   Downloaded criterion-plot v0.4.0
[INFO] [stderr]   Downloaded tracers-build v0.1.0
[INFO] [stderr]   Downloaded tracers-dyn-stap v0.1.0
[INFO] [stderr]   Downloaded tracers-libstapsdt-sys v0.1.0
[INFO] [stderr]   Downloaded tracers-macros v0.1.0
[INFO] [stderr]   Downloaded tracers-libelf-sys v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] 939da080d623242e5f03dd751b9e7f8b7cf6f214ff6fb9e4d4652294406ee3fe
[INFO] running `Command { std: "docker" "start" "-a" "939da080d623242e5f03dd751b9e7f8b7cf6f214ff6fb9e4d4652294406ee3fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "939da080d623242e5f03dd751b9e7f8b7cf6f214ff6fb9e4d4652294406ee3fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "939da080d623242e5f03dd751b9e7f8b7cf6f214ff6fb9e4d4652294406ee3fe", kill_on_drop: false }`
[INFO] [stdout] 939da080d623242e5f03dd751b9e7f8b7cf6f214ff6fb9e4d4652294406ee3fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] 1366a7db83646756fc394574d7722d16bb40b88a6169ae4944730bbdc2b23e9e
[INFO] running `Command { std: "docker" "start" "-a" "1366a7db83646756fc394574d7722d16bb40b88a6169ae4944730bbdc2b23e9e", 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]   libc v0.2.65: extra_traits
[INFO] [stderr]   libc v0.2.65 (as host dependency): extra_traits
[INFO] [stderr]   memchr v2.2.1 (as host dependency): libc
[INFO] [stderr] 
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling askama_escape v0.2.0
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling humansize v1.1.0
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling strum v0.16.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling once_cell v1.2.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking itertools v0.8.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.9
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling twox-hash v1.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling tracers-core v0.1.0
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling toml v0.5.5
[INFO] [stderr]    Compiling serde_str v0.1.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling cargo_metadata v0.9.0
[INFO] [stderr]    Compiling askama_shared v0.8.0
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]    Compiling askama_derive v0.8.0
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr]    Compiling askama v0.8.0
[INFO] [stderr]    Compiling tracers-codegen v0.1.0
[INFO] [stderr]    Compiling tracers-build v0.1.0
[INFO] [stderr]    Compiling tracers v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Compiling tracers-macros-hack v0.1.0
[INFO] [stderr]    Migrating build.rs from 2018 edition to 2021
[INFO] [stderr]     Checking tracers-macros v0.1.0
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/custom_provider_names.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/simple.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/simple.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/submodules.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating benches/probe_firing.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.45s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling tracers-core v0.1.0
[INFO] [stderr]    Compiling askama_derive v0.8.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling twox-hash v1.5.0
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr]    Compiling askama v0.8.0
[INFO] [stderr]    Compiling tracers-codegen v0.1.0
[INFO] [stderr]    Compiling tracers-build v0.1.0
[INFO] [stderr]    Compiling tracers v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Compiling tracers-macros-hack v0.1.0
[INFO] [stderr]     Checking tracers-macros v0.1.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.87s
[INFO] running `Command { std: "docker" "inspect" "1366a7db83646756fc394574d7722d16bb40b88a6169ae4944730bbdc2b23e9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1366a7db83646756fc394574d7722d16bb40b88a6169ae4944730bbdc2b23e9e", kill_on_drop: false }`
[INFO] [stdout] 1366a7db83646756fc394574d7722d16bb40b88a6169ae4944730bbdc2b23e9e