[INFO] cloning repository https://github.com/viktordanov/rust-mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/viktordanov/rust-mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviktordanov%2Frust-mandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviktordanov%2Frust-mandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df117848e99ac64db12b82c9e73368cd4529081b
[INFO] checking viktordanov/rust-mandelbrot against try#0f31acebf540c89e4a4d5d114959fe91973419cb for pr-147017
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviktordanov%2Frust-mandelbrot" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/viktordanov/rust-mandelbrot
[INFO] finished tweaking git repo https://github.com/viktordanov/rust-mandelbrot
[INFO] tweaked toml for git repo https://github.com/viktordanov/rust-mandelbrot written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/viktordanov/rust-mandelbrot on toolchain 0f31acebf540c89e4a4d5d114959fe91973419cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/viktordanov/rust-mandelbrot 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" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking viktordanov/rust-mandelbrot against try#0f31acebf540c89e4a4d5d114959fe91973419cb for pr-147017
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviktordanov%2Frust-mandelbrot" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/viktordanov/rust-mandelbrot
[INFO] finished tweaking git repo https://github.com/viktordanov/rust-mandelbrot
[INFO] tweaked toml for git repo https://github.com/viktordanov/rust-mandelbrot written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/viktordanov/rust-mandelbrot on toolchain 0f31acebf540c89e4a4d5d114959fe91973419cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/viktordanov/rust-mandelbrot 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" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "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 proc-macro2 v1.0.44
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.10
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.11
[INFO] [stderr]   Downloaded clap_derive v3.2.18
[INFO] [stderr]   Downloaded textwrap v0.15.1
[INFO] [stderr]   Downloaded clap v3.2.22
[INFO] [stderr]   Downloaded png v0.17.6
[INFO] [stderr]   Downloaded libc v0.2.133
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ff1e5f634f0c529698616b6b38a62bad7dfcecfb8ac80c6bce0a1c947ea7275
[INFO] running `Command { std: "docker" "start" "-a" "3ff1e5f634f0c529698616b6b38a62bad7dfcecfb8ac80c6bce0a1c947ea7275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ff1e5f634f0c529698616b6b38a62bad7dfcecfb8ac80c6bce0a1c947ea7275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ff1e5f634f0c529698616b6b38a62bad7dfcecfb8ac80c6bce0a1c947ea7275", kill_on_drop: false }`
[INFO] [stdout] 3ff1e5f634f0c529698616b6b38a62bad7dfcecfb8ac80c6bce0a1c947ea7275
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c28c1c6bee64b787311b38ca901135e4c4c715cce8eafcd790b63de2c7d79412
[INFO] running `Command { std: "docker" "start" "-a" "c28c1c6bee64b787311b38ca901135e4c4c715cce8eafcd790b63de2c7d79412", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.44
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking textwrap v0.15.1
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.44/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 phf v0.8.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[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" "c28c1c6bee64b787311b38ca901135e4c4c715cce8eafcd790b63de2c7d79412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c28c1c6bee64b787311b38ca901135e4c4c715cce8eafcd790b63de2c7d79412", kill_on_drop: false }`
[INFO] [stdout] c28c1c6bee64b787311b38ca901135e4c4c715cce8eafcd790b63de2c7d79412