[INFO] fetching crate busybee 0.2.0...
[INFO] testing busybee-0.2.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate busybee 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate busybee 0.2.0
[INFO] finished tweaking crates.io crate busybee 0.2.0
[INFO] tweaked toml for crates.io crate busybee 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate busybee 0.2.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate busybee 0.2.0 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a1a051f2d16318e490f5b1e2aa02b39b87a1b0d60056e912c81da9ee0a331a8
[INFO] running `Command { std: "docker" "start" "-a" "4a1a051f2d16318e490f5b1e2aa02b39b87a1b0d60056e912c81da9ee0a331a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a1a051f2d16318e490f5b1e2aa02b39b87a1b0d60056e912c81da9ee0a331a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a1a051f2d16318e490f5b1e2aa02b39b87a1b0d60056e912c81da9ee0a331a8", kill_on_drop: false }`
[INFO] [stdout] 4a1a051f2d16318e490f5b1e2aa02b39b87a1b0d60056e912c81da9ee0a331a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37b10efa8372f2ea43a1f04adc58d134b1db981be6e14511fa8f686ebcbec31e
[INFO] running `Command { std: "docker" "start" "-a" "37b10efa8372f2ea43a1f04adc58d134b1db981be6e14511fa8f686ebcbec31e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling buffertk v0.3.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling zerror v0.1.1
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling bindgen v0.60.1
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling biometrics v0.3.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling foreign-types-shared v0.3.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling sync42 v0.2.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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 cmake v0.1.50
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling crc32c v0.6.3
[INFO] [stderr]    Compiling utilz v0.1.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[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" "37b10efa8372f2ea43a1f04adc58d134b1db981be6e14511fa8f686ebcbec31e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37b10efa8372f2ea43a1f04adc58d134b1db981be6e14511fa8f686ebcbec31e", kill_on_drop: false }`
[INFO] [stdout] 37b10efa8372f2ea43a1f04adc58d134b1db981be6e14511fa8f686ebcbec31e