[INFO] cloning repository https://github.com/pinocchio338/boss_meta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pinocchio338/boss_meta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpinocchio338%2Fboss_meta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpinocchio338%2Fboss_meta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9784501aad18863ddc4a16aa98dca165a23b29f7
[INFO] checking pinocchio338/boss_meta/9784501aad18863ddc4a16aa98dca165a23b29f7 against master#04ff05c9c0cfbca33115c5f1b8bb20a66a54b799 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpinocchio338%2Fboss_meta" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pinocchio338/boss_meta
[INFO] finished tweaking git repo https://github.com/pinocchio338/boss_meta
[INFO] tweaked toml for git repo https://github.com/pinocchio338/boss_meta written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pinocchio338/boss_meta on toolchain 04ff05c9c0cfbca33115c5f1b8bb20a66a54b799
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pinocchio338/boss_meta 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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "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
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6cd535422299d678ffaf122c04377f4cfd623a7d8ed7d4921efd24468649f04
[INFO] running `Command { std: "docker" "start" "-a" "f6cd535422299d678ffaf122c04377f4cfd623a7d8ed7d4921efd24468649f04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6cd535422299d678ffaf122c04377f4cfd623a7d8ed7d4921efd24468649f04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6cd535422299d678ffaf122c04377f4cfd623a7d8ed7d4921efd24468649f04", kill_on_drop: false }`
[INFO] [stdout] f6cd535422299d678ffaf122c04377f4cfd623a7d8ed7d4921efd24468649f04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c588dbd4991ee3ca455fc3a58b81333d9822c9a40c872f945c986383e6a8492f
[INFO] running `Command { std: "docker" "start" "-a" "c588dbd4991ee3ca455fc3a58b81333d9822c9a40c872f945c986383e6a8492f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking num-traits v0.2.15
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.83
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]    Compiling num-integer v0.1.45
[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 bumpalo v3.11.0
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]     Checking keccak v0.1.2
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling wasm-bindgen v0.2.83
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking bs58 v0.4.0
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling jobserver v0.1.25
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]    Compiling serde_json v1.0.85
[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" "c588dbd4991ee3ca455fc3a58b81333d9822c9a40c872f945c986383e6a8492f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c588dbd4991ee3ca455fc3a58b81333d9822c9a40c872f945c986383e6a8492f", kill_on_drop: false }`
[INFO] [stdout] c588dbd4991ee3ca455fc3a58b81333d9822c9a40c872f945c986383e6a8492f