[INFO] fetching crate may 0.3.42...
[INFO] checking may-0.3.42 against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113242
[INFO] extracting crate may 0.3.42 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate may 0.3.42 on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate may 0.3.42
[INFO] finished tweaking crates.io crate may 0.3.42
[INFO] tweaked toml for crates.io crate may 0.3.42 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate may 0.3.42 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" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.8
[INFO] [stderr]   Downloaded memoffset v0.7.1
[INFO] [stderr]   Downloaded crossbeam v0.8.2
[INFO] [stderr]   Downloaded core_affinity v0.8.0
[INFO] [stderr]   Downloaded socket2 v0.5.1
[INFO] [stderr]   Downloaded may_queue v0.1.21
[INFO] [stderr]   Downloaded docopt v1.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7df57349a9ea4c72fbc3b0828260da63bde771f6d18b84ecc58b2a0dbce00ee2
[INFO] running `Command { std: "docker" "start" "-a" "7df57349a9ea4c72fbc3b0828260da63bde771f6d18b84ecc58b2a0dbce00ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7df57349a9ea4c72fbc3b0828260da63bde771f6d18b84ecc58b2a0dbce00ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7df57349a9ea4c72fbc3b0828260da63bde771f6d18b84ecc58b2a0dbce00ee2", kill_on_drop: false }`
[INFO] [stdout] 7df57349a9ea4c72fbc3b0828260da63bde771f6d18b84ecc58b2a0dbce00ee2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a4406d95cd7686b14edcf2974e1dda462684b0f16a4ff11ddbd644a64ac66bb
[INFO] running `Command { std: "docker" "start" "-a" "8a4406d95cd7686b14edcf2974e1dda462684b0f16a4ff11ddbd644a64ac66bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]     Checking parking_lot_core v0.9.7
[INFO] [stderr]     Checking openssl-sys v0.9.80
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking regex-syntax v0.6.28
[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] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking core_affinity v0.8.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[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" "8a4406d95cd7686b14edcf2974e1dda462684b0f16a4ff11ddbd644a64ac66bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a4406d95cd7686b14edcf2974e1dda462684b0f16a4ff11ddbd644a64ac66bb", kill_on_drop: false }`
[INFO] [stdout] 8a4406d95cd7686b14edcf2974e1dda462684b0f16a4ff11ddbd644a64ac66bb