[INFO] cloning repository https://github.com/Lancern/qwb-2020-fuzzer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lancern/qwb-2020-fuzzer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLancern%2Fqwb-2020-fuzzer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLancern%2Fqwb-2020-fuzzer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad44162da781984ceba8d6dbaff6402e9453a8a8
[INFO] checking Lancern/qwb-2020-fuzzer against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLancern%2Fqwb-2020-fuzzer" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Lancern/qwb-2020-fuzzer on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Lancern/qwb-2020-fuzzer
[INFO] finished tweaking git repo https://github.com/Lancern/qwb-2020-fuzzer
[INFO] tweaked toml for git repo https://github.com/Lancern/qwb-2020-fuzzer written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Lancern/qwb-2020-fuzzer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", 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] 16b5d3241d42f4c8296f9e705be87c8c3badc15491879c5c1883833d65d54845
[INFO] running `Command { std: "docker" "start" "-a" "16b5d3241d42f4c8296f9e705be87c8c3badc15491879c5c1883833d65d54845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16b5d3241d42f4c8296f9e705be87c8c3badc15491879c5c1883833d65d54845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16b5d3241d42f4c8296f9e705be87c8c3badc15491879c5c1883833d65d54845", kill_on_drop: false }`
[INFO] [stdout] 16b5d3241d42f4c8296f9e705be87c8c3badc15491879c5c1883833d65d54845
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac72607c98f7df70cb9e65342a2a8a6bf570c9a2f7925382a1142dbaa9e4ff58
[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" "ac72607c98f7df70cb9e65342a2a8a6bf570c9a2f7925382a1142dbaa9e4ff58", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking babyheap-seed-cli v0.1.0 (/opt/rustwide/workdir/babyheap-seed-cli)
[INFO] [stderr]     Checking babyheap-mutator v0.1.0 (/opt/rustwide/workdir/babyheap-mutator)
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking fuzzer v0.1.0 (/opt/rustwide/workdir/fuzzer)
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking babynotes-mutator v0.1.0 (/opt/rustwide/workdir/babynotes-mutator)
[INFO] [stderr]     Checking babynotes-seed-cli v0.1.0 (/opt/rustwide/workdir/babynotes-seed-cli)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.09s
[INFO] running `Command { std: "docker" "inspect" "ac72607c98f7df70cb9e65342a2a8a6bf570c9a2f7925382a1142dbaa9e4ff58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac72607c98f7df70cb9e65342a2a8a6bf570c9a2f7925382a1142dbaa9e4ff58", kill_on_drop: false }`
[INFO] [stdout] ac72607c98f7df70cb9e65342a2a8a6bf570c9a2f7925382a1142dbaa9e4ff58