[INFO] crate ahash 0.3.5 is already in cache
[INFO] testing ahash-0.3.5 against 1.44.0 for beta-1.45-1
[INFO] extracting crate ahash 0.3.5 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate ahash 0.3.5 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ahash 0.3.5
[INFO] finished tweaking crates.io crate ahash 0.3.5
[INFO] tweaked toml for crates.io crate ahash 0.3.5 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-11/source/tests/bench.rs
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d24066ff42da6204610c3f668e65d71dd98e183cddf9383178f70ddfa9a3c54d
[INFO] running `"docker" "start" "-a" "d24066ff42da6204610c3f668e65d71dd98e183cddf9383178f70ddfa9a3c54d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/tests/bench.rs
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling const-random v0.1.8
[INFO] [stderr]    Compiling ahash v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::convert::Convert`
[INFO] [stderr]  --> src/random_state.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::convert::Convert;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_by_64s`
[INFO] [stderr]   --> src/folded_multiply.rs:19:15
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub(crate) fn add_by_64s(a: u128, b: u128) -> u128 {
[INFO] [stderr]    |               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INCREMENT`
[INFO] [stderr]   --> src/random_state.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub(crate) const INCREMENT: u64 = 1442695040888963407;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `"docker" "inspect" "d24066ff42da6204610c3f668e65d71dd98e183cddf9383178f70ddfa9a3c54d"`
[INFO] running `"docker" "rm" "-f" "d24066ff42da6204610c3f668e65d71dd98e183cddf9383178f70ddfa9a3c54d"`
[INFO] [stdout] d24066ff42da6204610c3f668e65d71dd98e183cddf9383178f70ddfa9a3c54d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cb1e8a45ec80c0d805d0fe2b04b86804f49ee096b5716c0a97f6166788a7bfba
[INFO] running `"docker" "start" "-a" "cb1e8a45ec80c0d805d0fe2b04b86804f49ee096b5716c0a97f6166788a7bfba"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/tests/bench.rs
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling seahash v3.0.7
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr] warning: unused import: `crate::convert::Convert`
[INFO] [stderr]  --> src/random_state.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::convert::Convert;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_by_64s`
[INFO] [stderr]   --> src/folded_multiply.rs:19:15
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub(crate) fn add_by_64s(a: u128, b: u128) -> u128 {
[INFO] [stderr]    |               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INCREMENT`
[INFO] [stderr]   --> src/random_state.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub(crate) const INCREMENT: u64 = 1442695040888963407;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling no-panic v0.1.13
[INFO] [stderr]    Compiling criterion v0.3.2
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-0.3.2/src/lib.rs:21:40
[INFO] [stderr]    |
[INFO] [stderr] 21 | #![cfg_attr(feature = "real_blackbox", feature(test))]
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `criterion`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cb1e8a45ec80c0d805d0fe2b04b86804f49ee096b5716c0a97f6166788a7bfba"`
[INFO] running `"docker" "rm" "-f" "cb1e8a45ec80c0d805d0fe2b04b86804f49ee096b5716c0a97f6166788a7bfba"`
[INFO] [stdout] cb1e8a45ec80c0d805d0fe2b04b86804f49ee096b5716c0a97f6166788a7bfba