[INFO] fetching crate spry 0.0.4...
[INFO] checking spry-0.0.4 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate spry 0.0.4 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate spry 0.0.4 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spry 0.0.4
[INFO] finished tweaking crates.io crate spry 0.0.4
[INFO] tweaked toml for crates.io crate spry 0.0.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 48 packages to latest compatible versions
[INFO] [stderr]       Adding addr2line v0.22.0 (latest: v0.24.1)
[INFO] [stderr]       Adding gimli v0.29.0 (latest: v0.31.0)
[INFO] [stderr]       Adding miniz_oxide v0.7.4 (latest: v0.8.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3870c0a69cec0a2a1e6b3ab71908d75fab7c8c39ecc23513c39c59668e57ea2f
[INFO] running `Command { std: "docker" "start" "-a" "3870c0a69cec0a2a1e6b3ab71908d75fab7c8c39ecc23513c39c59668e57ea2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3870c0a69cec0a2a1e6b3ab71908d75fab7c8c39ecc23513c39c59668e57ea2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3870c0a69cec0a2a1e6b3ab71908d75fab7c8c39ecc23513c39c59668e57ea2f", kill_on_drop: false }`
[INFO] [stdout] 3870c0a69cec0a2a1e6b3ab71908d75fab7c8c39ecc23513c39c59668e57ea2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11bbd38b2976721e59be9a48f6bc80aad297f085b4ded8c1c7dd2892cb00476e
[INFO] running `Command { std: "docker" "start" "-a" "11bbd38b2976721e59be9a48f6bc80aad297f085b4ded8c1c7dd2892cb00476e", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking spry v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/nursery.rs:22:25
[INFO] [stdout]    |
[INFO] [stdout] 22 |   Settling(AbortHandle, Instant),
[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] 22 |   Settling(AbortHandle, ()),
[INFO] [stdout]    |                         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key`, `config`, `settling_token`, and `handle` are never read
[INFO] [stdout]    --> src/nursery.rs:120:7
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub struct AlreadyExists<K> {
[INFO] [stdout]     |            ------------- fields in this struct
[INFO] [stdout] 120 |   pub key: K,
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 121 |   pub config: ChildConfig,
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 122 |   pub settling_token: SettlingToken,
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 123 |   pub handle: JoinHandle<()>,
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AlreadyExists` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/nursery.rs:22:25
[INFO] [stdout]    |
[INFO] [stdout] 22 |   Settling(AbortHandle, Instant),
[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] 22 |   Settling(AbortHandle, ()),
[INFO] [stdout]    |                         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key`, `config`, `settling_token`, and `handle` are never read
[INFO] [stdout]    --> src/nursery.rs:120:7
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub struct AlreadyExists<K> {
[INFO] [stdout]     |            ------------- fields in this struct
[INFO] [stdout] 120 |   pub key: K,
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 121 |   pub config: ChildConfig,
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 122 |   pub settling_token: SettlingToken,
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 123 |   pub handle: JoinHandle<()>,
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AlreadyExists` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.77s
[INFO] running `Command { std: "docker" "inspect" "11bbd38b2976721e59be9a48f6bc80aad297f085b4ded8c1c7dd2892cb00476e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11bbd38b2976721e59be9a48f6bc80aad297f085b4ded8c1c7dd2892cb00476e", kill_on_drop: false }`
[INFO] [stdout] 11bbd38b2976721e59be9a48f6bc80aad297f085b4ded8c1c7dd2892cb00476e