[INFO] fetching crate iron_torch 0.1.18...
[INFO] checking iron_torch-0.1.18 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate iron_torch 0.1.18 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate iron_torch 0.1.18
[INFO] finished tweaking crates.io crate iron_torch 0.1.18
[INFO] tweaked toml for crates.io crate iron_torch 0.1.18 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate iron_torch 0.1.18 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 715ff2a7767ee7fc903db968d69bef1f73c818ff1eeb6325cb1c37fd3aaa3e15
[INFO] running `Command { std: "docker" "start" "-a" "715ff2a7767ee7fc903db968d69bef1f73c818ff1eeb6325cb1c37fd3aaa3e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "715ff2a7767ee7fc903db968d69bef1f73c818ff1eeb6325cb1c37fd3aaa3e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "715ff2a7767ee7fc903db968d69bef1f73c818ff1eeb6325cb1c37fd3aaa3e15", kill_on_drop: false }`
[INFO] [stdout] 715ff2a7767ee7fc903db968d69bef1f73c818ff1eeb6325cb1c37fd3aaa3e15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac6c8d5ebc56fa0c41bf131756e0bd97e12b64dade70b3d0ed4da273aef9287b
[INFO] running `Command { std: "docker" "start" "-a" "ac6c8d5ebc56fa0c41bf131756e0bd97e12b64dade70b3d0ed4da273aef9287b", kill_on_drop: false }`
[INFO] [stderr]     Checking iron_torch v0.1.18 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/iron_torch/mod.rs:12:94
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new<'a>(input_size: usize, output_size: usize, activation: activation::Activation<'a>) -> Layer {
[INFO] [stdout]    |                                                                                              ^^      ----- the same lifetime is hidden here
[INFO] [stdout]    |                                                                                              |
[INFO] [stdout]    |                                                                                              the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new<'a>(input_size: usize, output_size: usize, activation: activation::Activation<'a>) -> Layer<'a> {
[INFO] [stdout]    |                                                                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/iron_torch/mod.rs:12:94
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new<'a>(input_size: usize, output_size: usize, activation: activation::Activation<'a>) -> Layer {
[INFO] [stdout]    |                                                                                              ^^      ----- the same lifetime is hidden here
[INFO] [stdout]    |                                                                                              |
[INFO] [stdout]    |                                                                                              the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new<'a>(input_size: usize, output_size: usize, activation: activation::Activation<'a>) -> Layer<'a> {
[INFO] [stdout]    |                                                                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "ac6c8d5ebc56fa0c41bf131756e0bd97e12b64dade70b3d0ed4da273aef9287b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac6c8d5ebc56fa0c41bf131756e0bd97e12b64dade70b3d0ed4da273aef9287b", kill_on_drop: false }`
[INFO] [stdout] ac6c8d5ebc56fa0c41bf131756e0bd97e12b64dade70b3d0ed4da273aef9287b