[INFO] cloning repository https://github.com/alelavelli/realearning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alelavelli/realearning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelavelli%2Frealearning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelavelli%2Frealearning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c98b8a859db3fc636ae096ba10ac432fa4f5476d
[INFO] fixing alelavelli/realearning/c98b8a859db3fc636ae096ba10ac432fa4f5476d against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelavelli%2Frealearning" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alelavelli/realearning
[INFO] finished tweaking git repo https://github.com/alelavelli/realearning
[INFO] tweaked toml for git repo https://github.com/alelavelli/realearning written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alelavelli/realearning on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alelavelli/realearning 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polars-utils v0.28.0
[INFO] [stderr]   Downloaded foreign_vec v0.1.0
[INFO] [stderr]   Downloaded json-deserializer v0.4.4
[INFO] [stderr]   Downloaded polars-time v0.28.0
[INFO] [stderr]   Downloaded polars-error v0.28.0
[INFO] [stderr]   Downloaded multiversion v0.7.1
[INFO] [stderr]   Downloaded polars-row v0.28.0
[INFO] [stderr]   Downloaded dyn-clone v1.0.11
[INFO] [stderr]   Downloaded multiversion-macros v0.7.1
[INFO] [stderr]   Downloaded target-features v0.1.3
[INFO] [stderr]   Downloaded hash_hasher v2.0.3
[INFO] [stderr]   Downloaded polars-ops v0.28.0
[INFO] [stderr]   Downloaded array-init-cursor v0.2.0
[INFO] [stderr]   Downloaded polars v0.28.0
[INFO] [stderr]   Downloaded arrow-format v0.8.1
[INFO] [stderr]   Downloaded planus v0.3.1
[INFO] [stderr]   Downloaded polars-arrow v0.28.0
[INFO] [stderr]   Downloaded sysinfo v0.28.4
[INFO] [stderr]   Downloaded plotters-bitmap v0.3.2
[INFO] [stderr]   Downloaded value-trait v0.5.1
[INFO] [stderr]   Downloaded halfbrown v0.1.18
[INFO] [stderr]   Downloaded enum_dispatch v0.3.11
[INFO] [stderr]   Downloaded yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]   Downloaded fast-float v0.2.0
[INFO] [stderr]   Downloaded const-cstr v0.3.0
[INFO] [stderr]   Downloaded clap-verbosity-flag v2.0.1
[INFO] [stderr]   Downloaded codepage v0.1.1
[INFO] [stderr]   Downloaded polars-io v0.28.0
[INFO] [stderr]   Downloaded syn v2.0.13
[INFO] [stderr]   Downloaded colorous v1.0.10
[INFO] [stderr]   Downloaded assert_fs v1.0.13
[INFO] [stderr]   Downloaded polars-pipe v0.28.0
[INFO] [stderr]   Downloaded indicatif v0.17.3
[INFO] [stderr]   Downloaded font-kit v0.11.0
[INFO] [stderr]   Downloaded zip v0.6.4
[INFO] [stderr]   Downloaded ignore v0.4.20
[INFO] [stderr]   Downloaded polars-lazy v0.28.0
[INFO] [stderr]   Downloaded assert_cmd v2.0.11
[INFO] [stderr]   Downloaded simd-json v0.7.0
[INFO] [stderr]   Downloaded calamine v0.19.1
[INFO] [stderr]   Downloaded polars-plan v0.28.0
[INFO] [stderr]   Downloaded pest v2.5.7
[INFO] [stderr]   Downloaded polars-core v0.28.0
[INFO] [stderr]   Downloaded image v0.24.6
[INFO] [stderr]   Downloaded rustix v0.37.13
[INFO] [stderr]   Downloaded arrow2 v0.17.0
[INFO] [stderr]   Downloaded quick-xml v0.25.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7a0c761c3329ec6692c40d0550f3b3ba4f293caa8ce8c6a58678d0eb0f2bc391
[INFO] running `Command { std: "docker" "start" "7a0c761c3329ec6692c40d0550f3b3ba4f293caa8ce8c6a58678d0eb0f2bc391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7a0c761c3329ec6692c40d0550f3b3ba4f293caa8ce8c6a58678d0eb0f2bc391" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a0c761c3329ec6692c40d0550f3b3ba4f293caa8ce8c6a58678d0eb0f2bc391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7a0c761c3329ec6692c40d0550f3b3ba4f293caa8ce8c6a58678d0eb0f2bc391" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]     Checking lexical-util v0.8.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling target-features v0.1.3
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling zstd-safe v6.0.5+zstd.1.5.4
[INFO] [stderr]     Checking array-init-cursor v0.2.0
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]     Checking simdutf8 v0.1.4
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7a0c761c3329ec6692c40d0550f3b3ba4f293caa8ce8c6a58678d0eb0f2bc391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a0c761c3329ec6692c40d0550f3b3ba4f293caa8ce8c6a58678d0eb0f2bc391", kill_on_drop: false }`
[INFO] [stdout] 7a0c761c3329ec6692c40d0550f3b3ba4f293caa8ce8c6a58678d0eb0f2bc391
