[INFO] fetching crate serser 0.1.0...
[INFO] building serser-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate serser 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate serser 0.1.0
[INFO] finished tweaking crates.io crate serser 0.1.0
[INFO] tweaked toml for crates.io crate serser 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serser 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded maybe-owned v0.3.4
[INFO] [stderr]   Downloaded serser_derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2252dcce911c5f9c0c4fa4004f223dbb3219b6f383574031cdbd1c33c01f0aab
[INFO] running `Command { std: "docker" "start" "-a" "2252dcce911c5f9c0c4fa4004f223dbb3219b6f383574031cdbd1c33c01f0aab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2252dcce911c5f9c0c4fa4004f223dbb3219b6f383574031cdbd1c33c01f0aab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2252dcce911c5f9c0c4fa4004f223dbb3219b6f383574031cdbd1c33c01f0aab", kill_on_drop: false }`
[INFO] [stdout] 2252dcce911c5f9c0c4fa4004f223dbb3219b6f383574031cdbd1c33c01f0aab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f72302f985ac63dbf914a65b0c3c05ba624e049e235f83eddbc86e5d735f3fbc
[INFO] running `Command { std: "docker" "start" "-a" "f72302f985ac63dbf914a65b0c3c05ba624e049e235f83eddbc86e5d735f3fbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling maybe-owned v0.3.4
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serser_derive v0.1.0
[INFO] [stderr]    Compiling serser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.00s
[INFO] running `Command { std: "docker" "inspect" "f72302f985ac63dbf914a65b0c3c05ba624e049e235f83eddbc86e5d735f3fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f72302f985ac63dbf914a65b0c3c05ba624e049e235f83eddbc86e5d735f3fbc", kill_on_drop: false }`
[INFO] [stdout] f72302f985ac63dbf914a65b0c3c05ba624e049e235f83eddbc86e5d735f3fbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70b2fa9cfec84e21f7faa59c2c7ff521649c30ca4ab52e72198acf7db408ddbf
[INFO] running `Command { std: "docker" "start" "-a" "70b2fa9cfec84e21f7faa59c2c7ff521649c30ca4ab52e72198acf7db408ddbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling serser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `AnEnum` is never used
[INFO] [stdout]    --> tests/derive_from_tokens.rs:172:14
[INFO] [stdout]     |
[INFO] [stdout] 172 |         enum AnEnum {}
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "70b2fa9cfec84e21f7faa59c2c7ff521649c30ca4ab52e72198acf7db408ddbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70b2fa9cfec84e21f7faa59c2c7ff521649c30ca4ab52e72198acf7db408ddbf", kill_on_drop: false }`
[INFO] [stdout] 70b2fa9cfec84e21f7faa59c2c7ff521649c30ca4ab52e72198acf7db408ddbf