[INFO] fetching crate nolock 0.3.1...
[INFO] checking nolock-0.3.1 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate nolock 0.3.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate nolock 0.3.1 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nolock 0.3.1
[INFO] finished tweaking crates.io crate nolock 0.3.1
[INFO] tweaked toml for crates.io crate nolock 0.3.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iai v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6355c4a11b6e70a9c9661b7c225708c098bd5805960519652d0222b6cd55446
[INFO] running `Command { std: "docker" "start" "-a" "a6355c4a11b6e70a9c9661b7c225708c098bd5805960519652d0222b6cd55446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6355c4a11b6e70a9c9661b7c225708c098bd5805960519652d0222b6cd55446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6355c4a11b6e70a9c9661b7c225708c098bd5805960519652d0222b6cd55446", kill_on_drop: false }`
[INFO] [stdout] a6355c4a11b6e70a9c9661b7c225708c098bd5805960519652d0222b6cd55446
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c87b281d08ae5b52d8ed74328c939e9827cf0ff35720b18798f3479de2abc39
[INFO] running `Command { std: "docker" "start" "-a" "1c87b281d08ae5b52d8ed74328c939e9827cf0ff35720b18798f3479de2abc39", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking iai v0.1.1
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking serde_json v1.0.68
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking nolock v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stdout] warning: unused imports: `Arc`, `atomic`, `cell::RefCell`
[INFO] [stdout]  --> tests/hazard_ptr.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cell::RefCell,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 3 |     sync::{atomic, Arc},
[INFO] [stdout]   |            ^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nolock::hazard_ptr`
[INFO] [stdout]  --> tests/hazard_ptr.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use nolock::hazard_ptr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `sync::Arc`, `thread`, `time::Duration`
[INFO] [stdout]  --> tests/hash_trie.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{sync::Arc, thread, time::Duration};
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::RngCore`
[INFO] [stdout]  --> tests/hash_trie.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::RngCore;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> benches/hash_trie.rs:49:30
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn hash_trie_inserts(ctx: &mut Criterion) {}
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> benches/hash_trie.rs:50:28
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn std_map_inserts(ctx: &mut Criterion) {}
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `spsc_unbounded_queue_inserts`
[INFO] [stdout]  --> benches/spsc.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn spsc_unbounded_queue_inserts(ctx: &mut Criterion) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bounded_enqueue_dequeue`
[INFO] [stdout]   --> benches/spsc.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn bounded_enqueue_dequeue(ctx: &mut Criterion) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> benches/hash_trie.rs:49:30
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn hash_trie_inserts(ctx: &mut Criterion) {}
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> benches/hash_trie.rs:50:28
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn std_map_inserts(ctx: &mut Criterion) {}
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `unbounded_enqueue_dequeue`
[INFO] [stdout]   --> benches/spsc.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn unbounded_enqueue_dequeue() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bounded_enqueue_dequeue`
[INFO] [stdout]   --> benches/spsc.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn bounded_enqueue_dequeue() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.93s
[INFO] running `Command { std: "docker" "inspect" "1c87b281d08ae5b52d8ed74328c939e9827cf0ff35720b18798f3479de2abc39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c87b281d08ae5b52d8ed74328c939e9827cf0ff35720b18798f3479de2abc39", kill_on_drop: false }`
[INFO] [stdout] 1c87b281d08ae5b52d8ed74328c939e9827cf0ff35720b18798f3479de2abc39