[INFO] cloning repository https://github.com/loiclec/fuzzcheck-rs
[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-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floiclec%2Ffuzzcheck-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floiclec%2Ffuzzcheck-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecd332ad6bf1692c549fa6fe4dd169ed2fd54a4d
[INFO] checking loiclec/fuzzcheck-rs against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floiclec%2Ffuzzcheck-rs" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/loiclec/fuzzcheck-rs on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/loiclec/fuzzcheck-rs
[INFO] finished tweaking git repo https://github.com/loiclec/fuzzcheck-rs
[INFO] tweaked toml for git repo https://github.com/loiclec/fuzzcheck-rs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded overload v0.1.1
[INFO] [stderr]   Downloaded decent-serde-json-alternative v0.5.0
[INFO] [stderr]   Downloaded decent-serde-json-derive-alternative v0.5.0
[INFO] [stderr]   Downloaded nu-ansi-term v0.39.0
[INFO] [stderr]   Downloaded decent-synquote-alternative v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d653e82351b217dbcd8ca2800c5eb4c881903f2d0382316396534dea26add2a6
[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" "d653e82351b217dbcd8ca2800c5eb4c881903f2d0382316396534dea26add2a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d653e82351b217dbcd8ca2800c5eb4c881903f2d0382316396534dea26add2a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d653e82351b217dbcd8ca2800c5eb4c881903f2d0382316396534dea26add2a6", kill_on_drop: false }`
[INFO] [stdout] d653e82351b217dbcd8ca2800c5eb4c881903f2d0382316396534dea26add2a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 476779bd0b3c8906b1db924f0bb074a99d29ecd19f2a1021677e3dfcb2a9c92c
[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" "476779bd0b3c8906b1db924f0bb074a99d29ecd19f2a1021677e3dfcb2a9c92c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]    Compiling cargo-fuzzcheck v0.9.0 (/opt/rustwide/workdir/cargo-fuzzcheck)
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling fuzzcheck v0.9.0 (/opt/rustwide/workdir/fuzzcheck)
[INFO] [stderr]     Checking nu-ansi-term v0.39.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking fuzzcheck_common v0.9.0 (/opt/rustwide/workdir/fuzzcheck_common)
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling decent-synquote-alternative v0.4.0
[INFO] [stderr]     Checking fuzzcheck_mutators_derive v0.9.0 (/opt/rustwide/workdir/fuzzcheck_mutators_derive)
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "476779bd0b3c8906b1db924f0bb074a99d29ecd19f2a1021677e3dfcb2a9c92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "476779bd0b3c8906b1db924f0bb074a99d29ecd19f2a1021677e3dfcb2a9c92c", kill_on_drop: false }`
[INFO] [stdout] 476779bd0b3c8906b1db924f0bb074a99d29ecd19f2a1021677e3dfcb2a9c92c