[INFO] fetching crate tokidator 0.3.0...
[INFO] checking tokidator-0.3.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate tokidator 0.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate tokidator 0.3.0 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 crates.io crate tokidator 0.3.0
[INFO] finished tweaking crates.io crate tokidator 0.3.0
[INFO] tweaked toml for crates.io crate tokidator 0.3.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate tokidator 0.3.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.3.0
[INFO] [stderr]   Downloaded radium v0.3.0
[INFO] [stderr]   Downloaded csv-core v0.1.6
[INFO] [stderr]   Downloaded regex-automata v0.1.8
[INFO] [stderr]   Downloaded oorandom v11.1.0
[INFO] [stderr]   Downloaded num-derive v0.3.0
[INFO] [stderr]   Downloaded protobuf v2.10.1
[INFO] [stderr]   Downloaded criterion-plot v0.4.1
[INFO] [stderr]   Downloaded csv v1.1.3
[INFO] [stderr]   Downloaded protobuf-codegen v2.10.1
[INFO] [stderr]   Downloaded js-sys v0.3.35
[INFO] [stderr]   Downloaded bstr v0.2.11
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.58
[INFO] [stderr]   Downloaded num-traits v0.2.11
[INFO] [stderr]   Downloaded rayon v1.3.0
[INFO] [stderr]   Downloaded strum_macros v0.17.1
[INFO] [stderr]   Downloaded criterion v0.3.1
[INFO] [stderr]   Downloaded plotters v0.2.12
[INFO] [stderr]   Downloaded rayon-core v1.7.0
[INFO] [stderr]   Downloaded bitvec v0.17.2
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.58
[INFO] [stderr]   Downloaded strum v0.17.1
[INFO] [stderr]   Downloaded protobuf-codegen-pure v2.10.1
[INFO] [stderr]   Downloaded tinytemplate v1.0.3
[INFO] [stderr]   Downloaded regex-syntax v0.6.14
[INFO] [stderr]   Downloaded serde_json v1.0.47
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.58
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.58
[INFO] [stderr]   Downloaded bumpalo v3.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.58
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.58
[INFO] [stderr]   Downloaded web-sys v0.3.35
[INFO] [stderr]   Downloaded ring v0.16.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] b10d259a5ccc267d2aa158d96458f33bd2a0ee7ea39495040ed4fa3d915885a4
[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" "b10d259a5ccc267d2aa158d96458f33bd2a0ee7ea39495040ed4fa3d915885a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b10d259a5ccc267d2aa158d96458f33bd2a0ee7ea39495040ed4fa3d915885a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b10d259a5ccc267d2aa158d96458f33bd2a0ee7ea39495040ed4fa3d915885a4", kill_on_drop: false }`
[INFO] [stdout] b10d259a5ccc267d2aa158d96458f33bd2a0ee7ea39495040ed4fa3d915885a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 928493b431f251e85aef0567407f220e629fcaee36ce92db83e9fc1e47e4dde5
[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" "928493b431f251e85aef0567407f220e629fcaee36ce92db83e9fc1e47e4dde5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling protobuf v2.10.1
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking bitvec v0.17.2
[INFO] [stderr]     Checking memchr v2.3.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling ring v0.16.11
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking criterion-plot v0.4.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]    Compiling protobuf-codegen v2.10.1
[INFO] [stderr]     Checking serde_json v1.0.47
[INFO] [stderr]     Checking bstr v0.2.11
[INFO] [stderr]    Compiling protobuf-codegen-pure v2.10.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]    Compiling tokidator v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling strum_macros v0.17.1
[INFO] [stderr] warning: fail to generate protobuf file from source: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "928493b431f251e85aef0567407f220e629fcaee36ce92db83e9fc1e47e4dde5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "928493b431f251e85aef0567407f220e629fcaee36ce92db83e9fc1e47e4dde5", kill_on_drop: false }`
[INFO] [stdout] 928493b431f251e85aef0567407f220e629fcaee36ce92db83e9fc1e47e4dde5