[INFO] fetching crate more-changetoken 2.0.0...
[INFO] building more-changetoken-2.0.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate more-changetoken 2.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate more-changetoken 2.0.0
[INFO] finished tweaking crates.io crate more-changetoken 2.0.0
[INFO] tweaked toml for crates.io crate more-changetoken 2.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate more-changetoken 2.0.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 42 packages to latest compatible versions
[INFO] [stderr]       Adding notify v6.1.1 (available: v8.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04d73e1a45b99188c087bf013326b300d67ceb44a5783e7de80d0e2fce3d6a97
[INFO] running `Command { std: "docker" "start" "-a" "04d73e1a45b99188c087bf013326b300d67ceb44a5783e7de80d0e2fce3d6a97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d73e1a45b99188c087bf013326b300d67ceb44a5783e7de80d0e2fce3d6a97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d73e1a45b99188c087bf013326b300d67ceb44a5783e7de80d0e2fce3d6a97", kill_on_drop: false }`
[INFO] [stdout] 04d73e1a45b99188c087bf013326b300d67ceb44a5783e7de80d0e2fce3d6a97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 701646f443feef56459bc38bf4a92d71aad0dcd748c42cb8389df75d79db5e5b
[INFO] running `Command { std: "docker" "start" "-a" "701646f443feef56459bc38bf4a92d71aad0dcd748c42cb8389df75d79db5e5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling more-changetoken v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/global.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 102 | struct SubscriptionImpl<TToken, TProducer, TConsumer, TState>(
[INFO] [stdout]     |        ---------------- field in this struct
[INFO] [stdout] 103 |     Arc<ChangeTokenRegistration<TToken, TProducer, TConsumer, TState>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Registration(CallbackRef);
[INFO] [stdout]    |            ------------ ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "701646f443feef56459bc38bf4a92d71aad0dcd748c42cb8389df75d79db5e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "701646f443feef56459bc38bf4a92d71aad0dcd748c42cb8389df75d79db5e5b", kill_on_drop: false }`
[INFO] [stdout] 701646f443feef56459bc38bf4a92d71aad0dcd748c42cb8389df75d79db5e5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a387c1b9811ebe05e4ada79e4dda3a976d62941e332a227a1c6b01821fc81fa
[INFO] running `Command { std: "docker" "start" "-a" "7a387c1b9811ebe05e4ada79e4dda3a976d62941e332a227a1c6b01821fc81fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling more-changetoken v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/global.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 102 | struct SubscriptionImpl<TToken, TProducer, TConsumer, TState>(
[INFO] [stdout]     |        ---------------- field in this struct
[INFO] [stdout] 103 |     Arc<ChangeTokenRegistration<TToken, TProducer, TConsumer, TState>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Registration(CallbackRef);
[INFO] [stdout]    |            ------------ ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/global.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 102 | struct SubscriptionImpl<TToken, TProducer, TConsumer, TState>(
[INFO] [stdout]     |        ---------------- field in this struct
[INFO] [stdout] 103 |     Arc<ChangeTokenRegistration<TToken, TProducer, TConsumer, TState>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/token.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Registration(CallbackRef);
[INFO] [stdout]    |            ------------ ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "7a387c1b9811ebe05e4ada79e4dda3a976d62941e332a227a1c6b01821fc81fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a387c1b9811ebe05e4ada79e4dda3a976d62941e332a227a1c6b01821fc81fa", kill_on_drop: false }`
[INFO] [stdout] 7a387c1b9811ebe05e4ada79e4dda3a976d62941e332a227a1c6b01821fc81fa