[INFO] fetching crate may 0.3.42...
[INFO] checking may-0.3.42 against try#45b14c26f76a39a9945ef8518d3276f1bc880008 for pr-113242
[INFO] extracting crate may 0.3.42 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate may 0.3.42 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 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-tc2/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" "+45b14c26f76a39a9945ef8518d3276f1bc880008" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] 6f65b079587ae0120e1c5fb76a3c09c7fd51e5727637d64553927d1f7f2a862c
[INFO] running `Command { std: "docker" "start" "-a" "6f65b079587ae0120e1c5fb76a3c09c7fd51e5727637d64553927d1f7f2a862c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f65b079587ae0120e1c5fb76a3c09c7fd51e5727637d64553927d1f7f2a862c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f65b079587ae0120e1c5fb76a3c09c7fd51e5727637d64553927d1f7f2a862c", kill_on_drop: false }`
[INFO] [stdout] 6f65b079587ae0120e1c5fb76a3c09c7fd51e5727637d64553927d1f7f2a862c
[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] 5f0f72bbd263c224f422d52467958360788741ab2f2caaf5d356a7a93eecfde7
[INFO] running `Command { std: "docker" "start" "-a" "5f0f72bbd263c224f422d52467958360788741ab2f2caaf5d356a7a93eecfde7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustversion v1.0.12
[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 openssl-sys v0.9.80
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]     Checking parking_lot_core v0.9.7
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]    Compiling openssl v0.10.45
[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 static_assertions v1.1.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking cpufeatures v0.2.5
[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" "5f0f72bbd263c224f422d52467958360788741ab2f2caaf5d356a7a93eecfde7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f0f72bbd263c224f422d52467958360788741ab2f2caaf5d356a7a93eecfde7", kill_on_drop: false }`
[INFO] [stdout] 5f0f72bbd263c224f422d52467958360788741ab2f2caaf5d356a7a93eecfde7