[INFO] cloning repository https://github.com/andylokandy/group_by_avg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andylokandy/group_by_avg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandylokandy%2Fgroup_by_avg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandylokandy%2Fgroup_by_avg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ee481a4a4b1b28ea2eb5a4b89b48a6e99a87559
[INFO] checking andylokandy/group_by_avg against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandylokandy%2Fgroup_by_avg" "/workspace/builds/worker-111/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-111/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andylokandy/group_by_avg 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 git repo https://github.com/andylokandy/group_by_avg
[INFO] finished tweaking git repo https://github.com/andylokandy/group_by_avg
[INFO] tweaked toml for git repo https://github.com/andylokandy/group_by_avg written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] crate git repo https://github.com/andylokandy/group_by_avg 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 bstr v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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] 130595a47a59e4d51cdd58bfdb42faeb77b400d94ad9cb8ef00a1c2ce3a955d2
[INFO] running `Command { std: "docker" "start" "-a" "130595a47a59e4d51cdd58bfdb42faeb77b400d94ad9cb8ef00a1c2ce3a955d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "130595a47a59e4d51cdd58bfdb42faeb77b400d94ad9cb8ef00a1c2ce3a955d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "130595a47a59e4d51cdd58bfdb42faeb77b400d94ad9cb8ef00a1c2ce3a955d2", kill_on_drop: false }`
[INFO] [stdout] 130595a47a59e4d51cdd58bfdb42faeb77b400d94ad9cb8ef00a1c2ce3a955d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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] 4acf372cfcb0b279e056f0e06cd84e58684fcf06541dd6e749ae13796d3073bf
[INFO] running `Command { std: "docker" "start" "-a" "4acf372cfcb0b279e056f0e06cd84e58684fcf06541dd6e749ae13796d3073bf", 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]   lazy_static v1.3.0: spin, spin_no_std
[INFO] [stderr] 
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking walkdir v2.2.8
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking regex-automata v0.1.7
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking group_by_avg v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking bstr v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]    Migrating benches/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/from_file.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.84s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking bstr v0.2.1
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.2.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking group_by_avg v0.1.0 (/tmp/fixit)
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "4acf372cfcb0b279e056f0e06cd84e58684fcf06541dd6e749ae13796d3073bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4acf372cfcb0b279e056f0e06cd84e58684fcf06541dd6e749ae13796d3073bf", kill_on_drop: false }`
[INFO] [stdout] 4acf372cfcb0b279e056f0e06cd84e58684fcf06541dd6e749ae13796d3073bf