[INFO] cloning repository https://github.com/0x1042/learnrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0x1042/learnrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x1042%2Flearnrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x1042%2Flearnrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eac6df71845e1fb6ac9fdc48c2757de1300b5f61
[INFO] checking 0x1042/learnrust/eac6df71845e1fb6ac9fdc48c2757de1300b5f61 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x1042%2Flearnrust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0x1042/learnrust on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/0x1042/learnrust
[INFO] finished tweaking git repo https://github.com/0x1042/learnrust
[INFO] tweaked toml for git repo https://github.com/0x1042/learnrust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/0x1042/learnrust 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded axum-core v0.2.8
[INFO] [stderr]   Downloaded diesel_derives v2.0.1
[INFO] [stderr]   Downloaded axum v0.5.16
[INFO] [stderr]   Downloaded redis v0.21.6
[INFO] [stderr]   Downloaded hdrhistogram v7.5.2
[INFO] [stderr]   Downloaded diesel v2.0.2
[INFO] [stderr]   Downloaded libsqlite3-sys v0.25.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f55b002b232bf40ebe51dc55f20153a2cf2c40d03cb157d5889abec5670b28d3
[INFO] running `Command { std: "docker" "start" "-a" "f55b002b232bf40ebe51dc55f20153a2cf2c40d03cb157d5889abec5670b28d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f55b002b232bf40ebe51dc55f20153a2cf2c40d03cb157d5889abec5670b28d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f55b002b232bf40ebe51dc55f20153a2cf2c40d03cb157d5889abec5670b28d3", kill_on_drop: false }`
[INFO] [stdout] f55b002b232bf40ebe51dc55f20153a2cf2c40d03cb157d5889abec5670b28d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06b2a955ad791ec39756958ac68ba164096cdea6b68fc5555e5e8d5089476172
[INFO] running `Command { std: "docker" "start" "-a" "06b2a955ad791ec39756958ac68ba164096cdea6b68fc5555e5e8d5089476172", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling serde_json v1.0.86
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.46/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "06b2a955ad791ec39756958ac68ba164096cdea6b68fc5555e5e8d5089476172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06b2a955ad791ec39756958ac68ba164096cdea6b68fc5555e5e8d5089476172", kill_on_drop: false }`
[INFO] [stdout] 06b2a955ad791ec39756958ac68ba164096cdea6b68fc5555e5e8d5089476172