[INFO] fetching crate cargo-fuzz 0.11.0...
[INFO] checking cargo-fuzz-0.11.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate cargo-fuzz 0.11.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cargo-fuzz 0.11.0 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] started tweaking crates.io crate cargo-fuzz 0.11.0
[INFO] finished tweaking crates.io crate cargo-fuzz 0.11.0
[INFO] tweaked toml for crates.io crate cargo-fuzz 0.11.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate cargo-fuzz 0.11.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded escargot v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2c5feffb595997002d85082a54e1b8e86a8a53ce81718c4e6144731ddfed3530
[INFO] running `Command { std: "docker" "start" "-a" "2c5feffb595997002d85082a54e1b8e86a8a53ce81718c4e6144731ddfed3530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c5feffb595997002d85082a54e1b8e86a8a53ce81718c4e6144731ddfed3530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c5feffb595997002d85082a54e1b8e86a8a53ce81718c4e6144731ddfed3530", kill_on_drop: false }`
[INFO] [stdout] 2c5feffb595997002d85082a54e1b8e86a8a53ce81718c4e6144731ddfed3530
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 56af451d9faf23a9066366fd6dc020cfb269d579fa7e8b7a1d4bbb49ec31d597
[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" "56af451d9faf23a9066366fd6dc020cfb269d579fa7e8b7a1d4bbb49ec31d597", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.61
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]    Compiling escargot v0.5.1
[INFO] [stderr]    Compiling cargo-fuzz v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rustc_version v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking predicates v1.0.7
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking rustc-cfg v0.4.0
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking semver v0.10.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking cargo_metadata v0.11.4
[INFO] [stderr]     Checking assert_cmd v0.12.2
[INFO] [stderr]     Checking cargo-binutils v0.3.3
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]   --> src/main.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |   const RUN_AFTER_HELP: &str = "\
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 50 | |
[INFO] [stdout] 51 | | A full list of libFuzzer options can be found at
[INFO] [stdout]    | |_ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]   --> src/main.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |   const RUN_AFTER_HELP: &str = "\
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 50 | |
[INFO] [stdout] 51 | | A full list of libFuzzer options can be found at
[INFO] [stdout]    | |_ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "56af451d9faf23a9066366fd6dc020cfb269d579fa7e8b7a1d4bbb49ec31d597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56af451d9faf23a9066366fd6dc020cfb269d579fa7e8b7a1d4bbb49ec31d597", kill_on_drop: false }`
[INFO] [stdout] 56af451d9faf23a9066366fd6dc020cfb269d579fa7e8b7a1d4bbb49ec31d597