[INFO] fetching crate may 0.3.19...
[INFO] testing may-0.3.19 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate may 0.3.19 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate may 0.3.19 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate may 0.3.19
[INFO] finished tweaking crates.io crate may 0.3.19
[INFO] tweaked toml for crates.io crate may 0.3.19 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate may 0.3.19 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72fa4089dc9d73437c2a3256dc814af3873cf35e03676b33ba84bc0eb10e3b2a
[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" "72fa4089dc9d73437c2a3256dc814af3873cf35e03676b33ba84bc0eb10e3b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72fa4089dc9d73437c2a3256dc814af3873cf35e03676b33ba84bc0eb10e3b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72fa4089dc9d73437c2a3256dc814af3873cf35e03676b33ba84bc0eb10e3b2a", kill_on_drop: false }`
[INFO] [stdout] 72fa4089dc9d73437c2a3256dc814af3873cf35e03676b33ba84bc0eb10e3b2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d453eaf025e7240c8b1d5ddcf8a673f9e302e0a4a997fffa874e2377c5c5db2d
[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" "d453eaf025e7240c8b1d5ddcf8a673f9e302e0a4a997fffa874e2377c5c5db2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling may_queue v0.1.8
[INFO] [stderr]    Compiling generator v0.7.0
[INFO] [stderr]    Compiling may v0.3.19 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.1
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling crossbeam v0.8.0
[INFO] [stdout] warning: lint `non_fmt_panic` has been renamed to `non_fmt_panics`
[INFO] [stdout]   --> src/lib.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![allow(non_fmt_panic)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^ help: use the new name: `non_fmt_panics`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` 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 23.90s
[INFO] running `Command { std: "docker" "inspect" "d453eaf025e7240c8b1d5ddcf8a673f9e302e0a4a997fffa874e2377c5c5db2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d453eaf025e7240c8b1d5ddcf8a673f9e302e0a4a997fffa874e2377c5c5db2d", kill_on_drop: false }`
[INFO] [stdout] d453eaf025e7240c8b1d5ddcf8a673f9e302e0a4a997fffa874e2377c5c5db2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3d0911a23c6bd20cdf2dcbcc6761b2b423a4d1cec2c9c25bfc20198b808530a
[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" "b3d0911a23c6bd20cdf2dcbcc6761b2b423a4d1cec2c9c25bfc20198b808530a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling input_buffer v0.4.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling sha-1 v0.9.4
[INFO] [stdout] warning: lint `non_fmt_panic` has been renamed to `non_fmt_panics`
[INFO] [stdout]   --> src/lib.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![allow(non_fmt_panic)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^ help: use the new name: `non_fmt_panics`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling tungstenite v0.13.0
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling docopt v1.1.1
[INFO] [stderr]    Compiling may v0.3.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `non_fmt_panic` has been renamed to `non_fmt_panics`
[INFO] [stdout]   --> src/lib.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![allow(non_fmt_panic)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^ help: use the new name: `non_fmt_panics`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `may`; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name may --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=c06cae626b2aacd8 -C extra-filename=-c06cae626b2aacd8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-5cd672cac86e9454.rlib --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-7fd1c13f1e17a65e.rlib --extern docopt=/opt/rustwide/target/debug/deps/libdocopt-74aa06eb9241a3be.rlib --extern generator=/opt/rustwide/target/debug/deps/libgenerator-3dfbb82ca7f897d6.rlib --extern httparse=/opt/rustwide/target/debug/deps/libhttparse-58c8d95230882131.rlib --extern libc=/opt/rustwide/target/debug/deps/liblibc-ee0a838dc5bbcbf7.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-51b42ffc939a9eea.rlib --extern may_queue=/opt/rustwide/target/debug/deps/libmay_queue-379dc5dc418608be.rlib --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-d0a1337a7ba2ac47.rlib --extern nix=/opt/rustwide/target/debug/deps/libnix-a4248fc7e8d8818d.rlib --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-8195d199748ea150.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-c811c5aa5b985ee9.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-f2c445128671ab12.so --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-0e12401d3f654579.rlib --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-d89f3d44bfe1eb72.rlib --extern tempdir=/opt/rustwide/target/debug/deps/libtempdir-2d2b997ffef27d17.rlib --extern tungstenite=/opt/rustwide/target/debug/deps/libtungstenite-d24dee40c69e3f6e.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/generator-27281208a293fea8/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b3d0911a23c6bd20cdf2dcbcc6761b2b423a4d1cec2c9c25bfc20198b808530a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3d0911a23c6bd20cdf2dcbcc6761b2b423a4d1cec2c9c25bfc20198b808530a", kill_on_drop: false }`
[INFO] [stdout] b3d0911a23c6bd20cdf2dcbcc6761b2b423a4d1cec2c9c25bfc20198b808530a