[INFO] fetching crate noria 0.6.1...
[INFO] checking noria-0.6.1 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate noria 0.6.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate noria 0.6.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate noria 0.6.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate noria 0.6.1
[INFO] tweaked toml for crates.io crate noria 0.6.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate noria 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 066e0691c6271f8e278d95dc4cd98205ee2c9ec2a00071932a5bdf34d23a7882
[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" "066e0691c6271f8e278d95dc4cd98205ee2c9ec2a00071932a5bdf34d23a7882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "066e0691c6271f8e278d95dc4cd98205ee2c9ec2a00071932a5bdf34d23a7882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "066e0691c6271f8e278d95dc4cd98205ee2c9ec2a00071932a5bdf34d23a7882", kill_on_drop: false }`
[INFO] [stdout] 066e0691c6271f8e278d95dc4cd98205ee2c9ec2a00071932a5bdf34d23a7882
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--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] 3263f286bb65ea808403a6c8cbb6cdb4f8903b08f758102d4f381fe822f1fced
[INFO] running `Command { std: "docker" "start" "-a" "3263f286bb65ea808403a6c8cbb6cdb4f8903b08f758102d4f381fe822f1fced", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking tower-layer v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking tracing-core v0.1.10
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking tower-make v0.3.0
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking addr2line v0.12.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling standback v0.2.9
[INFO] [stderr]    Compiling time v0.2.16
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking assert_infrequent v0.1.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/assert_infrequent-0.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `assert_infrequent`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3263f286bb65ea808403a6c8cbb6cdb4f8903b08f758102d4f381fe822f1fced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3263f286bb65ea808403a6c8cbb6cdb4f8903b08f758102d4f381fe822f1fced", kill_on_drop: false }`
[INFO] [stdout] 3263f286bb65ea808403a6c8cbb6cdb4f8903b08f758102d4f381fe822f1fced
