[INFO] fetching crate async-rdma 0.5.0...
[INFO] testing async-rdma-0.5.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate async-rdma 0.5.0 into /workspace/builds/worker-4-tc1/source
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate async-rdma 0.5.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate async-rdma 0.5.0
[INFO] tweaked toml for crates.io crate async-rdma 0.5.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate async-rdma 0.5.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate async-rdma 0.5.0 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clippy-utilities v0.1.0
[INFO] [stderr]   Downloaded numeric_cast v0.1.2
[INFO] [stderr]   Downloaded async-bincode v0.6.2
[INFO] [stderr]   Downloaded async-trait v0.1.64
[INFO] [stderr]   Downloaded const-str v0.3.2
[INFO] [stderr]   Downloaded futures v0.3.26
[INFO] [stderr]   Downloaded neli v0.5.3
[INFO] [stderr]   Downloaded const-str-proc-macro v0.3.2
[INFO] [stderr]   Downloaded futures-sink v0.3.26
[INFO] [stderr]   Downloaded minstant v0.1.2
[INFO] [stderr]   Downloaded local-ip-address v0.4.9
[INFO] [stderr]   Downloaded lockfree-cuckoohash v0.1.0
[INFO] [stderr]   Downloaded rdma-sys v0.3.0
[INFO] [stderr]   Downloaded sealed v0.4.0
[INFO] [stderr]   Downloaded simd-abstraction v0.5.1
[INFO] [stderr]   Downloaded hex-simd v0.5.1
[INFO] [stderr]   Downloaded portpicker v0.1.1
[INFO] [stderr]   Downloaded tokio v1.25.0
[INFO] [stderr]   Downloaded tikv-jemalloc-sys v0.4.3+5.2.1-patched.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d787894f10a4a2d9376760bafafd01b05bc3e19c8ccce4e3487bb7eb4e024e9c
[INFO] running `Command { std: "docker" "start" "-a" "d787894f10a4a2d9376760bafafd01b05bc3e19c8ccce4e3487bb7eb4e024e9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d787894f10a4a2d9376760bafafd01b05bc3e19c8ccce4e3487bb7eb4e024e9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d787894f10a4a2d9376760bafafd01b05bc3e19c8ccce4e3487bb7eb4e024e9c", kill_on_drop: false }`
[INFO] [stdout] d787894f10a4a2d9376760bafafd01b05bc3e19c8ccce4e3487bb7eb4e024e9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 1483f946853e2eff5410d41219fbb5ca3936c25dba7c3f1852bb06f26190edb2
[INFO] running `Command { std: "docker" "start" "-a" "1483f946853e2eff5410d41219fbb5ca3936c25dba7c3f1852bb06f26190edb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling futures-sink v0.3.26
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/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 ansi_term v0.12.1
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[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" "1483f946853e2eff5410d41219fbb5ca3936c25dba7c3f1852bb06f26190edb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1483f946853e2eff5410d41219fbb5ca3936c25dba7c3f1852bb06f26190edb2", kill_on_drop: false }`
[INFO] [stdout] 1483f946853e2eff5410d41219fbb5ca3936c25dba7c3f1852bb06f26190edb2