[INFO] fetching crate safe-mac-cli 0.1.5...
[INFO] testing safe-mac-cli-0.1.5 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate safe-mac-cli 0.1.5 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate safe-mac-cli 0.1.5
[INFO] finished tweaking crates.io crate safe-mac-cli 0.1.5
[INFO] tweaked toml for crates.io crate safe-mac-cli 0.1.5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate safe-mac-cli 0.1.5 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate safe-mac-cli 0.1.5 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b6a006929f9d0b82952560e3756676b2f5e0ff14cb64b33601659d157478f81
[INFO] running `Command { std: "docker" "start" "-a" "5b6a006929f9d0b82952560e3756676b2f5e0ff14cb64b33601659d157478f81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b6a006929f9d0b82952560e3756676b2f5e0ff14cb64b33601659d157478f81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6a006929f9d0b82952560e3756676b2f5e0ff14cb64b33601659d157478f81", kill_on_drop: false }`
[INFO] [stdout] 5b6a006929f9d0b82952560e3756676b2f5e0ff14cb64b33601659d157478f81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64630bac34599b1a8c663f13437b9f2027ae848843825f4af39bc0af2a83f548
[INFO] running `Command { std: "docker" "start" "-a" "64630bac34599b1a8c663f13437b9f2027ae848843825f4af39bc0af2a83f548", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling no-std-net v0.6.0
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling anyhow v1.0.66
[INFO] [stderr]    Compiling pnet_base v0.31.0
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling pnet v0.31.0
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling pnet_macros_support v0.31.0
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling either v1.8.0
[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" "64630bac34599b1a8c663f13437b9f2027ae848843825f4af39bc0af2a83f548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64630bac34599b1a8c663f13437b9f2027ae848843825f4af39bc0af2a83f548", kill_on_drop: false }`
[INFO] [stdout] 64630bac34599b1a8c663f13437b9f2027ae848843825f4af39bc0af2a83f548
