[INFO] fetching crate j4rs 0.11.2...
[INFO] checking j4rs-0.11.2 against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] extracting crate j4rs 0.11.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate j4rs 0.11.2 on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate j4rs 0.11.2
[INFO] finished tweaking crates.io crate j4rs 0.11.2
[INFO] tweaked toml for crates.io crate j4rs 0.11.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", 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] f83332e749a0f94642a8a26aa0f5e87fb80373b4d641da659fa06799b09b23b5
[INFO] running `Command { std: "docker" "start" "-a" "f83332e749a0f94642a8a26aa0f5e87fb80373b4d641da659fa06799b09b23b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f83332e749a0f94642a8a26aa0f5e87fb80373b4d641da659fa06799b09b23b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f83332e749a0f94642a8a26aa0f5e87fb80373b4d641da659fa06799b09b23b5", kill_on_drop: false }`
[INFO] [stdout] f83332e749a0f94642a8a26aa0f5e87fb80373b4d641da659fa06799b09b23b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ed0da57362682b5b279aa5028de6870789386cede2ac1c5b380fe5d0debcb87
[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" "5ed0da57362682b5b279aa5028de6870789386cede2ac1c5b380fe5d0debcb87", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking fs_extra v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling java-locator v0.1.2
[INFO] [stderr]     Checking libc v0.2.71
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking libloading v0.5.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling j4rs v0.11.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]     Checking serde v1.0.112
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stdout] warning: function is never used: `set_factory_constructor_method`
[INFO] [stdout]    --> src/cache.rs:492:15
[INFO] [stdout]     |
[INFO] [stdout] 492 | pub(crate) fn set_factory_constructor_method(j: jmethodID) {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_factory_constructor_method`
[INFO] [stdout]    --> src/cache.rs:499:15
[INFO] [stdout]     |
[INFO] [stdout] 499 | pub(crate) fn get_factory_constructor_method() -> errors::Result<jmethodID> {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_float_class`
[INFO] [stdout]     --> src/cache.rs:1315:15
[INFO] [stdout]      |
[INFO] [stdout] 1315 | pub(crate) fn set_float_class(j: jclass) {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_float_class`
[INFO] [stdout]     --> src/cache.rs:1322:15
[INFO] [stdout]      |
[INFO] [stdout] 1322 | pub(crate) fn get_float_class() -> errors::Result<jclass> {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_float_constructor_method`
[INFO] [stdout]     --> src/cache.rs:1337:15
[INFO] [stdout]      |
[INFO] [stdout] 1337 | pub(crate) fn set_float_constructor_method(j: jmethodID) {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_float_constructor_method`
[INFO] [stdout]     --> src/cache.rs:1344:15
[INFO] [stdout]      |
[INFO] [stdout] 1344 | pub(crate) fn get_float_constructor_method() -> errors::Result<jmethodID> {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_double_class`
[INFO] [stdout]     --> src/cache.rs:1368:15
[INFO] [stdout]      |
[INFO] [stdout] 1368 | pub(crate) fn set_double_class(j: jclass) {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_double_class`
[INFO] [stdout]     --> src/cache.rs:1375:15
[INFO] [stdout]      |
[INFO] [stdout] 1375 | pub(crate) fn get_double_class() -> errors::Result<jclass> {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_double_constructor_method`
[INFO] [stdout]     --> src/cache.rs:1390:15
[INFO] [stdout]      |
[INFO] [stdout] 1390 | pub(crate) fn set_double_constructor_method(j: jmethodID) {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_double_constructor_method`
[INFO] [stdout]     --> src/cache.rs:1397:15
[INFO] [stdout]      |
[INFO] [stdout] 1397 | pub(crate) fn get_double_constructor_method() -> errors::Result<jmethodID> {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_factory_constructor_method`
[INFO] [stdout]    --> src/cache.rs:492:15
[INFO] [stdout]     |
[INFO] [stdout] 492 | pub(crate) fn set_factory_constructor_method(j: jmethodID) {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_factory_constructor_method`
[INFO] [stdout]    --> src/cache.rs:499:15
[INFO] [stdout]     |
[INFO] [stdout] 499 | pub(crate) fn get_factory_constructor_method() -> errors::Result<jmethodID> {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_float_class`
[INFO] [stdout]     --> src/cache.rs:1315:15
[INFO] [stdout]      |
[INFO] [stdout] 1315 | pub(crate) fn set_float_class(j: jclass) {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_float_class`
[INFO] [stdout]     --> src/cache.rs:1322:15
[INFO] [stdout]      |
[INFO] [stdout] 1322 | pub(crate) fn get_float_class() -> errors::Result<jclass> {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_float_constructor_method`
[INFO] [stdout]     --> src/cache.rs:1337:15
[INFO] [stdout]      |
[INFO] [stdout] 1337 | pub(crate) fn set_float_constructor_method(j: jmethodID) {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_float_constructor_method`
[INFO] [stdout]     --> src/cache.rs:1344:15
[INFO] [stdout]      |
[INFO] [stdout] 1344 | pub(crate) fn get_float_constructor_method() -> errors::Result<jmethodID> {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_double_class`
[INFO] [stdout]     --> src/cache.rs:1368:15
[INFO] [stdout]      |
[INFO] [stdout] 1368 | pub(crate) fn set_double_class(j: jclass) {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_double_class`
[INFO] [stdout]     --> src/cache.rs:1375:15
[INFO] [stdout]      |
[INFO] [stdout] 1375 | pub(crate) fn get_double_class() -> errors::Result<jclass> {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_double_constructor_method`
[INFO] [stdout]     --> src/cache.rs:1390:15
[INFO] [stdout]      |
[INFO] [stdout] 1390 | pub(crate) fn set_double_constructor_method(j: jmethodID) {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_double_constructor_method`
[INFO] [stdout]     --> src/cache.rs:1397:15
[INFO] [stdout]      |
[INFO] [stdout] 1397 | pub(crate) fn get_double_constructor_method() -> errors::Result<jmethodID> {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "5ed0da57362682b5b279aa5028de6870789386cede2ac1c5b380fe5d0debcb87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ed0da57362682b5b279aa5028de6870789386cede2ac1c5b380fe5d0debcb87", kill_on_drop: false }`
[INFO] [stdout] 5ed0da57362682b5b279aa5028de6870789386cede2ac1c5b380fe5d0debcb87