[INFO] fetching crate fuzzcheck 0.7.4...
[INFO] checking fuzzcheck-0.7.4 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate fuzzcheck 0.7.4 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate fuzzcheck 0.7.4 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fuzzcheck 0.7.4
[INFO] finished tweaking crates.io crate fuzzcheck 0.7.4
[INFO] tweaked toml for crates.io crate fuzzcheck 0.7.4 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fuzzcheck_common v0.7.0
[INFO] [stderr]   Downloaded fuzzcheck_mutators_derive v0.7.0
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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] 56068921856acae4e353fe8be0550e8b364d1fa3484132c122141a73e8b3b78a
[INFO] running `Command { std: "docker" "start" "-a" "56068921856acae4e353fe8be0550e8b364d1fa3484132c122141a73e8b3b78a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56068921856acae4e353fe8be0550e8b364d1fa3484132c122141a73e8b3b78a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56068921856acae4e353fe8be0550e8b364d1fa3484132c122141a73e8b3b78a", kill_on_drop: false }`
[INFO] [stdout] 56068921856acae4e353fe8be0550e8b364d1fa3484132c122141a73e8b3b78a
[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=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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8aafdba0dc9784caca827c469cd3956d0253c4e9c45bc1e93053492881f6a065
[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" "8aafdba0dc9784caca827c469cd3956d0253c4e9c45bc1e93053492881f6a065", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling serde v1.0.128
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking fuzzcheck_common v0.7.0
[INFO] [stderr]     Checking object v0.26.1
[INFO] [stderr]    Compiling decent-synquote-alternative v0.4.0
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling fuzzcheck v0.7.4 (/tmp/fixit)
[INFO] [stderr]    Migrating build.rs from 2018 edition to 2021
[INFO] [stderr]    Compiling fuzzcheck_mutators_derive v0.7.0
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr] warning: src/code_coverage_sensor/instrumentation_pointers_linux.c:1:12: warning: '__llvm_profile_runtime' initialized and declared 'extern'
[INFO] [stderr] warning:     1 | extern int __llvm_profile_runtime = 0;
[INFO] [stderr] warning:       |            ^~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/fuzzer.rs (1 fix)
[INFO] [stderr]    Migrating tests/option.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/alternation_char_mutators.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/derived_struct.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/char_mutators.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/vector.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/constrained_integer.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/derived_enum.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.81s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling fuzzcheck v0.7.4 (/tmp/fixit)
[INFO] [stderr] warning: src/code_coverage_sensor/instrumentation_pointers_linux.c:1:12: warning: '__llvm_profile_runtime' initialized and declared 'extern'
[INFO] [stderr] warning:     1 | extern int __llvm_profile_runtime = 0;
[INFO] [stderr] warning:       |            ^~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.53s
[INFO] running `Command { std: "docker" "inspect" "8aafdba0dc9784caca827c469cd3956d0253c4e9c45bc1e93053492881f6a065", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aafdba0dc9784caca827c469cd3956d0253c4e9c45bc1e93053492881f6a065", kill_on_drop: false }`
[INFO] [stdout] 8aafdba0dc9784caca827c469cd3956d0253c4e9c45bc1e93053492881f6a065