[INFO] fetching crate chashmap 2.2.2...
[INFO] testing chashmap-2.2.2 against 1.47.0 for beta-1.48-1
[INFO] extracting crate chashmap 2.2.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate chashmap 2.2.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chashmap 2.2.2
[INFO] finished tweaking crates.io crate chashmap 2.2.2
[INFO] tweaked toml for crates.io crate chashmap 2.2.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a41f6d919cfc403208bd7ab46ffee73f3b29b45b6f762e8e0a99eb55547ea44c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a41f6d919cfc403208bd7ab46ffee73f3b29b45b6f762e8e0a99eb55547ea44c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a41f6d919cfc403208bd7ab46ffee73f3b29b45b6f762e8e0a99eb55547ea44c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a41f6d919cfc403208bd7ab46ffee73f3b29b45b6f762e8e0a99eb55547ea44c", kill_on_drop: false }`
[INFO] [stdout] a41f6d919cfc403208bd7ab46ffee73f3b29b45b6f762e8e0a99eb55547ea44c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3063cd8ff5532727f81f484df9df2d3ef40c706c5f2ec8b45dbb9655cf70d162
[INFO] running `Command { std: "docker" "start" "-a" "3063cd8ff5532727f81f484df9df2d3ef40c706c5f2ec8b45dbb9655cf70d162", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling chashmap v2.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:405:21
[INFO] [stdout]     |
[INFO] [stdout] 405 |                 let mut bucket = self.scan_mut_no_lock(&key, |x| match *x {
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.89s
[INFO] running `Command { std: "docker" "inspect" "3063cd8ff5532727f81f484df9df2d3ef40c706c5f2ec8b45dbb9655cf70d162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3063cd8ff5532727f81f484df9df2d3ef40c706c5f2ec8b45dbb9655cf70d162", kill_on_drop: false }`
[INFO] [stdout] 3063cd8ff5532727f81f484df9df2d3ef40c706c5f2ec8b45dbb9655cf70d162
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 397d8efc86b2e8438ba7d4720d460029a1b099b8d5b9d7ba218b44725b061889
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "397d8efc86b2e8438ba7d4720d460029a1b099b8d5b9d7ba218b44725b061889", kill_on_drop: false }`
[INFO] [stderr]    Compiling chashmap v2.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:405:21
[INFO] [stdout]     |
[INFO] [stdout] 405 |                 let mut bucket = self.scan_mut_no_lock(&key, |x| match *x {
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:405:21
[INFO] [stdout]     |
[INFO] [stdout] 405 |                 let mut bucket = self.scan_mut_no_lock(&key, |x| match *x {
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.20s
[INFO] running `Command { std: "docker" "inspect" "397d8efc86b2e8438ba7d4720d460029a1b099b8d5b9d7ba218b44725b061889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "397d8efc86b2e8438ba7d4720d460029a1b099b8d5b9d7ba218b44725b061889", kill_on_drop: false }`
[INFO] [stdout] 397d8efc86b2e8438ba7d4720d460029a1b099b8d5b9d7ba218b44725b061889
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c5ea7f51db798b6c9bfe037ce977434aa57eaad9f02e0d20d3b46869cfc77b9d
[INFO] running `Command { std: "docker" "start" "-a" "c5ea7f51db798b6c9bfe037ce977434aa57eaad9f02e0d20d3b46869cfc77b9d", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:405:21
[INFO] [stderr]     |
[INFO] [stderr] 405 |                 let mut bucket = self.scan_mut_no_lock(&key, |x| match *x {
[INFO] [stderr]     |                     ----^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:405:21
[INFO] [stderr]     |
[INFO] [stderr] 405 |                 let mut bucket = self.scan_mut_no_lock(&key, |x| match *x {
[INFO] [stderr]     |                     ----^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chashmap-ea6215170e7e6375
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test tests::clear ... ok
[INFO] [stdout] test tests::insert ... ok
[INFO] [stdout] test tests::find ... ok
[INFO] [stdout] test tests::conflict_remove ... ok
[INFO] [stdout] test tests::capacity_not_less_than_len ... ok
[INFO] [stdout] test tests::is_empty ... ok
[INFO] [stdout] test tests::empty_pop ... ok
[INFO] [stdout] test tests::lookup_borrowed ... ok
[INFO] [stdout] test tests::find_mut ... ok
[INFO] [stdout] test tests::alter_string ... ok
[INFO] [stdout] test tests::create_capacity_zero ... ok
[INFO] [stdout] test tests::insert_into_map_full_of_free_buckets ... ok
[INFO] [stdout] test tests::drops ... ok
[INFO] [stdout] test tests::pop ... ok
[INFO] [stdout] test tests::insert_overwrite ... ok
[INFO] [stdout] test tests::clear_with_retain ... ok
[INFO] [stdout] test tests::from_iter ... ok
[INFO] [stdout] test tests::reserve_shrink_to_fit ... ok
[INFO] [stdout] test tests::upsert ... ok
[INFO] [stdout] test tests::insert_conflicts ... ok
[INFO] [stdout] test tests::move_iter_drops ... ok
[INFO] [stdout] test tests::lock_compete ... ok
[INFO] [stdout] test tests::retain ... ok
[INFO] [stdout] test tests::upsert_update ... ok
[INFO] [stdout] test tests::simultanous_reserve ... ok
[INFO] [stdout] test tests::spam_insert_new ... ok
[INFO] [stdout] test tests::spam_upsert ... ok
[INFO] [stdout] test tests::spam_insert ... ok
[INFO] [stdout] test tests::spam_alter ... ok
[INFO] [stdout] test tests::lots_of_insertions ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chashmap
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c5ea7f51db798b6c9bfe037ce977434aa57eaad9f02e0d20d3b46869cfc77b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5ea7f51db798b6c9bfe037ce977434aa57eaad9f02e0d20d3b46869cfc77b9d", kill_on_drop: false }`
[INFO] [stdout] c5ea7f51db798b6c9bfe037ce977434aa57eaad9f02e0d20d3b46869cfc77b9d
