[INFO] fetching crate rustwrap 1.0.5...
[INFO] checking rustwrap-1.0.5 against try#45b14c26f76a39a9945ef8518d3276f1bc880008 for pr-113242
[INFO] extracting crate rustwrap 1.0.5 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate rustwrap 1.0.5 on toolchain 45b14c26f76a39a9945ef8518d3276f1bc880008
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+45b14c26f76a39a9945ef8518d3276f1bc880008" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustwrap 1.0.5
[INFO] finished tweaking crates.io crate rustwrap 1.0.5
[INFO] tweaked toml for crates.io crate rustwrap 1.0.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate rustwrap 1.0.5 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" "+45b14c26f76a39a9945ef8518d3276f1bc880008" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+45b14c26f76a39a9945ef8518d3276f1bc880008" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 588d050cdd2c58331dc2832e1459278bf791525637527c9feb7a4c0547226e5d
[INFO] running `Command { std: "docker" "start" "-a" "588d050cdd2c58331dc2832e1459278bf791525637527c9feb7a4c0547226e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "588d050cdd2c58331dc2832e1459278bf791525637527c9feb7a4c0547226e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "588d050cdd2c58331dc2832e1459278bf791525637527c9feb7a4c0547226e5d", kill_on_drop: false }`
[INFO] [stdout] 588d050cdd2c58331dc2832e1459278bf791525637527c9feb7a4c0547226e5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+45b14c26f76a39a9945ef8518d3276f1bc880008" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a4be8647e9c3d03dd90ba92a0cf841a7131f156632d93680b3d7a6f6e385378
[INFO] running `Command { std: "docker" "start" "-a" "5a4be8647e9c3d03dd90ba92a0cf841a7131f156632d93680b3d7a6f6e385378", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking generic-array v0.14.6
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking futures-io v0.3.26
[INFO] [stderr]    Compiling io-lifetimes v1.0.6
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]     Checking futures-sink v0.3.26
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]    Compiling rustix v0.36.9
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]     Checking time-core v0.1.0
[INFO] [stderr]     Checking password-hash v0.4.2
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling portable-atomic v0.3.19
[INFO] [stderr]     Checking unicode-bidi v0.3.10
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking time v0.3.20
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5a4be8647e9c3d03dd90ba92a0cf841a7131f156632d93680b3d7a6f6e385378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a4be8647e9c3d03dd90ba92a0cf841a7131f156632d93680b3d7a6f6e385378", kill_on_drop: false }`
[INFO] [stdout] 5a4be8647e9c3d03dd90ba92a0cf841a7131f156632d93680b3d7a6f6e385378