[INFO] cloning repository https://github.com/carlosdamazio/spawner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/carlosdamazio/spawner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosdamazio%2Fspawner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosdamazio%2Fspawner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 319e86a5df579e1bfeda9d191d4b8ddae9bbd449
[INFO] checking carlosdamazio/spawner against try#2c4e58eac5a232e49065e517c1cf50b2715ccf85 for pr-140283
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosdamazio%2Fspawner" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/carlosdamazio/spawner
[INFO] finished tweaking git repo https://github.com/carlosdamazio/spawner
[INFO] tweaked toml for git repo https://github.com/carlosdamazio/spawner written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/carlosdamazio/spawner on toolchain 2c4e58eac5a232e49065e517c1cf50b2715ccf85
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/carlosdamazio/spawner 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" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prost v0.11.0
[INFO] [stderr]   Downloaded prost-derive v0.11.0
[INFO] [stderr]   Downloaded axum-core v0.2.9
[INFO] [stderr]   Downloaded prost-build v0.11.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded tonic-build v0.8.2
[INFO] [stderr]   Downloaded prettyplease v0.1.21
[INFO] [stderr]   Downloaded prost-types v0.11.1
[INFO] [stderr]   Downloaded openssl-sys v0.9.76
[INFO] [stderr]   Downloaded async-trait v0.1.58
[INFO] [stderr]   Downloaded tonic v0.8.2
[INFO] [stderr]   Downloaded axum v0.5.17
[INFO] [stderr]   Downloaded openssl v0.10.42
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded libc v0.2.134
[INFO] [stderr]   Downloaded tokio v1.21.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 391e4ba1333d7aebdf3ccb36a81d94a238eaacc257d085133dec2d8589d53b77
[INFO] running `Command { std: "docker" "start" "-a" "391e4ba1333d7aebdf3ccb36a81d94a238eaacc257d085133dec2d8589d53b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "391e4ba1333d7aebdf3ccb36a81d94a238eaacc257d085133dec2d8589d53b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "391e4ba1333d7aebdf3ccb36a81d94a238eaacc257d085133dec2d8589d53b77", kill_on_drop: false }`
[INFO] [stdout] 391e4ba1333d7aebdf3ccb36a81d94a238eaacc257d085133dec2d8589d53b77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b17b0f74d3d33e00bb212f2b83935281e7c53b23135bf7671fb06109fd9f8848
[INFO] running `Command { std: "docker" "start" "-a" "b17b0f74d3d33e00bb212f2b83935281e7c53b23135bf7671fb06109fd9f8848", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/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 futures-channel v0.3.25
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking num_cpus v1.13.1
[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" "b17b0f74d3d33e00bb212f2b83935281e7c53b23135bf7671fb06109fd9f8848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b17b0f74d3d33e00bb212f2b83935281e7c53b23135bf7671fb06109fd9f8848", kill_on_drop: false }`
[INFO] [stdout] b17b0f74d3d33e00bb212f2b83935281e7c53b23135bf7671fb06109fd9f8848