[INFO] fetching crate schema2000 0.1.0...
[INFO] checking schema2000-0.1.0 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate schema2000 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate schema2000 0.1.0 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate schema2000 0.1.0
[INFO] finished tweaking crates.io crate schema2000 0.1.0
[INFO] tweaked toml for crates.io crate schema2000 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1820c81e6943ca0b55814dd9a5f0b37c4040e115579cad7346453fc6d487c04f
[INFO] running `Command { std: "docker" "start" "-a" "1820c81e6943ca0b55814dd9a5f0b37c4040e115579cad7346453fc6d487c04f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1820c81e6943ca0b55814dd9a5f0b37c4040e115579cad7346453fc6d487c04f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1820c81e6943ca0b55814dd9a5f0b37c4040e115579cad7346453fc6d487c04f", kill_on_drop: false }`
[INFO] [stdout] 1820c81e6943ca0b55814dd9a5f0b37c4040e115579cad7346453fc6d487c04f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df76989cf78a36dade95cd827cf1326adc20df3577faae7e4a349dbeebc0fedd
[INFO] running `Command { std: "docker" "start" "-a" "df76989cf78a36dade95cd827cf1326adc20df3577faae7e4a349dbeebc0fedd", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking schema2000 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/utils.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Multiple(&'a BTreeSet<T>),
[INFO] [stdout]   |     -------- ^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Multiple(()),
[INFO] [stdout]   |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/utils.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Multiple(&'a BTreeSet<T>),
[INFO] [stdout]   |     -------- ^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Multiple(()),
[INFO] [stdout]   |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.25s
[INFO] running `Command { std: "docker" "inspect" "df76989cf78a36dade95cd827cf1326adc20df3577faae7e4a349dbeebc0fedd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df76989cf78a36dade95cd827cf1326adc20df3577faae7e4a349dbeebc0fedd", kill_on_drop: false }`
[INFO] [stdout] df76989cf78a36dade95cd827cf1326adc20df3577faae7e4a349dbeebc0fedd