[INFO] cloning repository https://github.com/patientplatypus6/servoproblemexample
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/patientplatypus6/servoproblemexample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatientplatypus6%2Fservoproblemexample", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatientplatypus6%2Fservoproblemexample'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01c70e3b6b24195b921089d4e772b277b7938a71
[INFO] testing patientplatypus6/servoproblemexample against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatientplatypus6%2Fservoproblemexample" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/patientplatypus6/servoproblemexample
[INFO] finished tweaking git repo https://github.com/patientplatypus6/servoproblemexample
[INFO] tweaked toml for git repo https://github.com/patientplatypus6/servoproblemexample written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/patientplatypus6/servoproblemexample on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/patientplatypus6/servoproblemexample 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded net2 v0.2.38
[INFO] [stderr]   Downloaded uuid v0.8.2
[INFO] [stderr]   Downloaded quote v1.0.22
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.2
[INFO] [stderr]   Downloaded ipc-channel v0.16.0
[INFO] [stderr]   Downloaded serde v1.0.151
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.4
[INFO] [stderr]   Downloaded serde_derive v1.0.151
[INFO] [stderr]   Downloaded proc-macro2 v1.0.48
[INFO] [stderr]   Downloaded libc v0.2.138
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 087de027b8ed8939148cb4c6ec3534b84637c13d4b32cb198e3c40b9c51859e7
[INFO] running `Command { std: "docker" "start" "-a" "087de027b8ed8939148cb4c6ec3534b84637c13d4b32cb198e3c40b9c51859e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "087de027b8ed8939148cb4c6ec3534b84637c13d4b32cb198e3c40b9c51859e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "087de027b8ed8939148cb4c6ec3534b84637c13d4b32cb198e3c40b9c51859e7", kill_on_drop: false }`
[INFO] [stdout] 087de027b8ed8939148cb4c6ec3534b84637c13d4b32cb198e3c40b9c51859e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd1c8cc13738bcdf859cf2fbd403f3eb6017ec87572507b9f8e3703b2e37001e
[INFO] running `Command { std: "docker" "start" "-a" "dd1c8cc13738bcdf859cf2fbd403f3eb6017ec87572507b9f8e3703b2e37001e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling proc-macro2 v1.0.48
[INFO] [stderr]    Compiling quote v1.0.22
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling serde_derive v1.0.151
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.151
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.48/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] [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" "dd1c8cc13738bcdf859cf2fbd403f3eb6017ec87572507b9f8e3703b2e37001e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd1c8cc13738bcdf859cf2fbd403f3eb6017ec87572507b9f8e3703b2e37001e", kill_on_drop: false }`
[INFO] [stdout] dd1c8cc13738bcdf859cf2fbd403f3eb6017ec87572507b9f8e3703b2e37001e
