[INFO] fetching crate pb-arena 0.1.3...
[INFO] checking pb-arena-0.1.3 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate pb-arena 0.1.3 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate pb-arena 0.1.3
[INFO] finished tweaking crates.io crate pb-arena 0.1.3
[INFO] tweaked toml for crates.io crate pb-arena 0.1.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pb-arena 0.1.3 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fea36dd790ae5fb07c6ab6288dd9047f53014651e4d96079612a94e391e7b5b
[INFO] running `Command { std: "docker" "start" "-a" "4fea36dd790ae5fb07c6ab6288dd9047f53014651e4d96079612a94e391e7b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fea36dd790ae5fb07c6ab6288dd9047f53014651e4d96079612a94e391e7b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fea36dd790ae5fb07c6ab6288dd9047f53014651e4d96079612a94e391e7b5b", kill_on_drop: false }`
[INFO] [stdout] 4fea36dd790ae5fb07c6ab6288dd9047f53014651e4d96079612a94e391e7b5b
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc2644b8b58e2ec5d3e34045221e7c5880e1a7a92af2abff13451338f872ffe9
[INFO] running `Command { std: "docker" "start" "-a" "fc2644b8b58e2ec5d3e34045221e7c5880e1a7a92af2abff13451338f872ffe9", kill_on_drop: false }`
[INFO] [stderr]     Checking pb-atomic-linked-list v0.1.6
[INFO] [stderr]     Checking pb-atomic-hash-map v0.1.0
[INFO] [stderr]     Checking pb-arena v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `prelude::AtomicLinkedList`
[INFO] [stdout]  --> src/sync/mod.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use pb_atomic_linked_list::{prelude::AtomicLinkedList as _, AtomicLinkedList, AtomicQueue};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude::AtomicLinkedList`
[INFO] [stdout]  --> src/sync/mod.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use pb_atomic_linked_list::{prelude::AtomicLinkedList as _, AtomicLinkedList, AtomicQueue};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_block` is never used
[INFO] [stdout]    --> src/lib.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl ArenaId {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn next_block(&self) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_block` is never used
[INFO] [stdout]    --> src/lib.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl ArenaId {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn next_block(&self) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "fc2644b8b58e2ec5d3e34045221e7c5880e1a7a92af2abff13451338f872ffe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc2644b8b58e2ec5d3e34045221e7c5880e1a7a92af2abff13451338f872ffe9", kill_on_drop: false }`
[INFO] [stdout] fc2644b8b58e2ec5d3e34045221e7c5880e1a7a92af2abff13451338f872ffe9