[INFO] fetching crate merkle-tree-bulletin-board-backend-mysql 0.3.0...
[INFO] building merkle-tree-bulletin-board-backend-mysql-0.3.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate merkle-tree-bulletin-board-backend-mysql 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate merkle-tree-bulletin-board-backend-mysql 0.3.0
[INFO] finished tweaking crates.io crate merkle-tree-bulletin-board-backend-mysql 0.3.0
[INFO] tweaked toml for crates.io crate merkle-tree-bulletin-board-backend-mysql 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate merkle-tree-bulletin-board-backend-mysql 0.3.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate merkle-tree-bulletin-board-backend-mysql 0.3.0 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded named_pipe v0.4.1
[INFO] [stderr]   Downloaded mysql v23.0.1
[INFO] [stderr]   Downloaded ahash v0.7.6
[INFO] [stderr]   Downloaded rkyv v0.7.40
[INFO] [stderr]   Downloaded rend v0.4.0
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[INFO] [stderr]   Downloaded bufstream v0.1.4
[INFO] [stderr]   Downloaded bigdecimal v0.3.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.7
[INFO] [stderr]   Downloaded merkle-tree-bulletin-board v0.3.0
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[INFO] [stderr]   Downloaded rust_decimal v1.28.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1da7c4424d5a897d2a2745c6c985aebe712a9c871d91231f169f67ee2d0bbb6
[INFO] running `Command { std: "docker" "start" "-a" "c1da7c4424d5a897d2a2745c6c985aebe712a9c871d91231f169f67ee2d0bbb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1da7c4424d5a897d2a2745c6c985aebe712a9c871d91231f169f67ee2d0bbb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1da7c4424d5a897d2a2745c6c985aebe712a9c871d91231f169f67ee2d0bbb6", kill_on_drop: false }`
[INFO] [stdout] c1da7c4424d5a897d2a2745c6c985aebe712a9c871d91231f169f67ee2d0bbb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 474fa97b45b5f7e4a3cc6e23f485283a53b1e0554b407e1b2af80512c596c351
[INFO] running `Command { std: "docker" "start" "-a" "474fa97b45b5f7e4a3cc6e23f485283a53b1e0554b407e1b2af80512c596c351", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.154
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling serde v1.0.154
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling lexical-util v0.8.5
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling frunk_core v0.4.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling clang-sys v1.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling openssl-sys v0.9.80
[INFO] [stderr]    Compiling lexical-write-integer v0.8.5
[INFO] [stderr]    Compiling lexical-parse-integer v0.8.6
[INFO] [stderr]    Compiling libz-sys v1.1.8
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "474fa97b45b5f7e4a3cc6e23f485283a53b1e0554b407e1b2af80512c596c351", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "474fa97b45b5f7e4a3cc6e23f485283a53b1e0554b407e1b2af80512c596c351", kill_on_drop: false }`
[INFO] [stdout] 474fa97b45b5f7e4a3cc6e23f485283a53b1e0554b407e1b2af80512c596c351