[INFO] cloning repository https://github.com/SirVer/shell_grunt2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SirVer/shell_grunt2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirVer%2Fshell_grunt2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirVer%2Fshell_grunt2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec7f16ca066ceb9ab37f3db0fbb23b486cfeb26a
[INFO] checking SirVer/shell_grunt2/ec7f16ca066ceb9ab37f3db0fbb23b486cfeb26a against master#e0e204f3e97ad5f79524b9c259dc38df606ed82c for pr-149218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirVer%2Fshell_grunt2" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SirVer/shell_grunt2
[INFO] finished tweaking git repo https://github.com/SirVer/shell_grunt2
[INFO] tweaked toml for git repo https://github.com/SirVer/shell_grunt2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SirVer/shell_grunt2 on toolchain e0e204f3e97ad5f79524b9c259dc38df606ed82c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SirVer/shell_grunt2 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" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pathdiff v0.1.0
[INFO] [stderr]   Downloaded term v0.6.1
[INFO] [stderr]   Downloaded ctrlc v3.2.5
[INFO] [stderr]   Downloaded indicatif v0.11.0
[INFO] [stderr]   Downloaded self_update v0.7.0
[INFO] [stderr]   Downloaded floating-duration v0.1.2
[INFO] [stderr]   Downloaded lua v0.0.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfe1f0ef53a9d549060dd393fbb2d05c40b12cbec5714cfe1db3d2c7d9d5646e
[INFO] running `Command { std: "docker" "start" "-a" "dfe1f0ef53a9d549060dd393fbb2d05c40b12cbec5714cfe1db3d2c7d9d5646e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfe1f0ef53a9d549060dd393fbb2d05c40b12cbec5714cfe1db3d2c7d9d5646e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfe1f0ef53a9d549060dd393fbb2d05c40b12cbec5714cfe1db3d2c7d9d5646e", kill_on_drop: false }`
[INFO] [stdout] dfe1f0ef53a9d549060dd393fbb2d05c40b12cbec5714cfe1db3d2c7d9d5646e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 227f135a1ffd680c14f2f0918391d8299436166aafdb845e6a49888682519c31
[INFO] running `Command { std: "docker" "start" "-a" "227f135a1ffd680c14f2f0918391d8299436166aafdb845e6a49888682519c31", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]     Checking unicode-bidi v0.3.10
[INFO] [stderr]    Compiling openssl-sys v0.9.80
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]     Checking gimli v0.27.2
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking object v0.30.3
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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 idna v0.2.3
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking url v1.7.2
[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" "227f135a1ffd680c14f2f0918391d8299436166aafdb845e6a49888682519c31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "227f135a1ffd680c14f2f0918391d8299436166aafdb845e6a49888682519c31", kill_on_drop: false }`
[INFO] [stdout] 227f135a1ffd680c14f2f0918391d8299436166aafdb845e6a49888682519c31
