[INFO] cloning repository https://github.com/loiclec/fuzzcheck_proc_macro2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/loiclec/fuzzcheck_proc_macro2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floiclec%2Ffuzzcheck_proc_macro2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floiclec%2Ffuzzcheck_proc_macro2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff8a67e014df367bac56b941812ebde8622217fd
[INFO] testing loiclec/fuzzcheck_proc_macro2 against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floiclec%2Ffuzzcheck_proc_macro2" "/workspace/builds/worker-86/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-86/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/loiclec/fuzzcheck_proc_macro2 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/loiclec/fuzzcheck_proc_macro2
[INFO] finished tweaking git repo https://github.com/loiclec/fuzzcheck_proc_macro2
[INFO] tweaked toml for git repo https://github.com/loiclec/fuzzcheck_proc_macro2 written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] crate git repo https://github.com/loiclec/fuzzcheck_proc_macro2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/loiclec/fuzzcheck-rs`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6acd632f0a8e1ece869fcee511e90e0eab2760c4f16934ca180ab2a4ffb181c
[INFO] running `Command { std: "docker" "start" "-a" "e6acd632f0a8e1ece869fcee511e90e0eab2760c4f16934ca180ab2a4ffb181c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6acd632f0a8e1ece869fcee511e90e0eab2760c4f16934ca180ab2a4ffb181c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6acd632f0a8e1ece869fcee511e90e0eab2760c4f16934ca180ab2a4ffb181c", kill_on_drop: false }`
[INFO] [stdout] e6acd632f0a8e1ece869fcee511e90e0eab2760c4f16934ca180ab2a4ffb181c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f52b7518f2f922efad8102e8a22b3df9d48059593d48f1f0f4d541c886a04ea
[INFO] running `Command { std: "docker" "start" "-a" "3f52b7518f2f922efad8102e8a22b3df9d48059593d48f1f0f4d541c886a04ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling nu-ansi-term v0.39.0
[INFO] [stderr]    Compiling fuzzcheck_common v0.11.0 (https://github.com/loiclec/fuzzcheck-rs#8f7de6fa)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/fuzzcheck-rs-531eb3f95f61a5dd/8f7de6f/fuzzcheck_common/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(no_coverage)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ahash v0.7.6
[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 `fuzzcheck_common` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3f52b7518f2f922efad8102e8a22b3df9d48059593d48f1f0f4d541c886a04ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f52b7518f2f922efad8102e8a22b3df9d48059593d48f1f0f4d541c886a04ea", kill_on_drop: false }`
[INFO] [stdout] 3f52b7518f2f922efad8102e8a22b3df9d48059593d48f1f0f4d541c886a04ea