[INFO] fetching crate smolscale 0.3.16...
[INFO] checking smolscale-0.3.16 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate smolscale 0.3.16 into /workspace/builds/worker-39/source
[INFO] validating manifest of crates.io crate smolscale 0.3.16 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smolscale 0.3.16
[INFO] finished tweaking crates.io crate smolscale 0.3.16
[INFO] tweaked toml for crates.io crate smolscale 0.3.16 written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate crates.io crate smolscale 0.3.16 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 026f5e7973be8582148c5f37e01cea73c97ae9b41f4b66c4c4554b99c7d02e9d
[INFO] running `Command { std: "docker" "start" "-a" "026f5e7973be8582148c5f37e01cea73c97ae9b41f4b66c4c4554b99c7d02e9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "026f5e7973be8582148c5f37e01cea73c97ae9b41f4b66c4c4554b99c7d02e9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "026f5e7973be8582148c5f37e01cea73c97ae9b41f4b66c4c4554b99c7d02e9d", kill_on_drop: false }`
[INFO] [stdout] 026f5e7973be8582148c5f37e01cea73c97ae9b41f4b66c4c4554b99c7d02e9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14054093d200175added109c758ece29000cd9eed964123957a5d01a97e0433a
[INFO] running `Command { std: "docker" "start" "-a" "14054093d200175added109c758ece29000cd9eed964123957a5d01a97e0433a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.4.1
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking plotters-backend v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking futures-micro v0.3.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.64
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[INFO] [stderr]     Checking itertools v0.9.0
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[INFO] [stderr]     Checking itertools v0.10.1
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[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
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[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
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[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking polling v2.1.0
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking addr2line v0.15.2
[INFO] [stderr]    Compiling cast v0.2.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking async-io v1.4.1
[INFO] [stderr]     Checking futures-intrusive v0.4.0
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking smolscale v0.3.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Mutex`
[INFO] [stdout]  --> src/executor.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 |     sync::{Arc, Mutex, RwLock},
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `concurrent_queue::ConcurrentQueue`
[INFO] [stdout]  --> src/executor.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use concurrent_queue::ConcurrentQueue;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] warning: unused import: `Mutex`
[INFO] [stdout]  --> src/executor.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 |     sync::{Arc, Mutex, RwLock},
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `concurrent_queue::ConcurrentQueue`
[INFO] [stdout]  --> src/executor.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use concurrent_queue::ConcurrentQueue;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.69s
[INFO] running `Command { std: "docker" "inspect" "14054093d200175added109c758ece29000cd9eed964123957a5d01a97e0433a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14054093d200175added109c758ece29000cd9eed964123957a5d01a97e0433a", kill_on_drop: false }`
[INFO] [stdout] 14054093d200175added109c758ece29000cd9eed964123957a5d01a97e0433a