[INFO] cloning repository https://github.com/mammothbane/antrelay
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mammothbane/antrelay" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmammothbane%2Fantrelay", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmammothbane%2Fantrelay'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa7ca986c9d20b481dfac2d7227552bdea7f1a7d
[INFO] checking mammothbane/antrelay against try#95813608313bff49cfc1afc393a946a3c085b772 for pr-148946
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmammothbane%2Fantrelay" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/mammothbane/antrelay
[INFO] finished tweaking git repo https://github.com/mammothbane/antrelay
[INFO] tweaked toml for git repo https://github.com/mammothbane/antrelay written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mammothbane/antrelay on toolchain 95813608313bff49cfc1afc393a946a3c085b772
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mammothbane/antrelay 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" "+95813608313bff49cfc1afc393a946a3c085b772" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline-async v0.2.6
[INFO] [stderr]   Downloaded packed_struct v0.10.0
[INFO] [stderr]   Downloaded packed_struct_codegen v0.10.0
[INFO] [stderr]   Downloaded socket2 v0.5.4
[INFO] [stderr]   Downloaded enum-iterator v0.8.1
[INFO] [stderr]   Downloaded enum-iterator-derive v0.8.1
[INFO] [stderr]   Downloaded vergen v0.1.1
[INFO] [stderr]   Downloaded exec v0.3.1
[INFO] [stderr]   Downloaded actix-broker v0.4.3
[INFO] [stderr]   Downloaded vergen v6.0.2
[INFO] [stderr]   Downloaded nonempty v0.8.0
[INFO] [stderr]   Downloaded console-subscriber v0.1.8
[INFO] [stderr]   Downloaded thingbuf v0.1.3
[INFO] [stderr]   Downloaded tonic v0.8.2
[INFO] [stderr]   Downloaded console-api v0.4.0
[INFO] [stderr]   Downloaded sysinfo v0.23.13
[INFO] [stderr]   Downloaded tokio-serial v5.4.3
[INFO] [stderr]   Downloaded async-stream-impl v0.3.4
[INFO] [stderr]   Downloaded bitvec v0.22.3
[INFO] [stderr]   Downloaded mio-serial v5.0.2
[INFO] [stderr]   Downloaded git2 v0.14.4
[INFO] [stderr]   Downloaded syn v2.0.3
[INFO] [stderr]   Downloaded async-stream v0.3.4
[INFO] [stderr]   Downloaded async-compat v0.2.1
[INFO] [stderr]   Downloaded funty v1.2.0
[INFO] [stderr]   Downloaded wyz v0.4.0
[INFO] [stderr]   Downloaded hdrhistogram v7.5.2
[INFO] [stderr]   Downloaded libz-sys v1.1.6
[INFO] [stderr]   Downloaded libgit2-sys v0.13.4+1.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f7b786e8914e643adf7f0c2451218e1685b9b9016afc2e54f2c2212f0ea33bf
[INFO] running `Command { std: "docker" "start" "-a" "2f7b786e8914e643adf7f0c2451218e1685b9b9016afc2e54f2c2212f0ea33bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f7b786e8914e643adf7f0c2451218e1685b9b9016afc2e54f2c2212f0ea33bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f7b786e8914e643adf7f0c2451218e1685b9b9016afc2e54f2c2212f0ea33bf", kill_on_drop: false }`
[INFO] [stdout] 2f7b786e8914e643adf7f0c2451218e1685b9b9016afc2e54f2c2212f0ea33bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd8604900479902189c78a8806baa9ed18287fb1d473df45d518aea1e8d1432b
[INFO] running `Command { std: "docker" "start" "-a" "bd8604900479902189c78a8806baa9ed18287fb1d473df45d518aea1e8d1432b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling semver v1.0.9
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.52/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 tinyvec v1.6.0
[INFO] [stderr]     Checking http v0.2.9
[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" "bd8604900479902189c78a8806baa9ed18287fb1d473df45d518aea1e8d1432b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd8604900479902189c78a8806baa9ed18287fb1d473df45d518aea1e8d1432b", kill_on_drop: false }`
[INFO] [stdout] bd8604900479902189c78a8806baa9ed18287fb1d473df45d518aea1e8d1432b