[INFO] fetching crate flowr 0.34.8...
[INFO] checking flowr-0.34.8 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate flowr 0.34.8 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate flowr 0.34.8 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 flowr 0.34.8
[INFO] finished tweaking crates.io crate flowr 0.34.8
[INFO] tweaked toml for crates.io crate flowr 0.34.8 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate flowr 0.34.8 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 num_cpus v1.10.1
[INFO] [stderr]   Downloaded toml v0.2.1
[INFO] [stderr]   Downloaded metadeps v1.1.2
[INFO] [stderr]   Downloaded zmq-sys v0.11.0
[INFO] [stderr]   Downloaded zmq v0.9.2
[INFO] [stderr]   Downloaded wasmi v0.6.2
[INFO] [stderr]   Downloaded weezl v0.1.4
[INFO] [stderr]   Downloaded wasmi-validation v0.3.0
[INFO] [stderr]   Downloaded flowstdlib v0.34.8
[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] 30d7c21a1fac0279d664c8938f7d43f6bc6a2d1f3286593d3d907d6928c85bc4
[INFO] running `Command { std: "docker" "start" "-a" "30d7c21a1fac0279d664c8938f7d43f6bc6a2d1f3286593d3d907d6928c85bc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30d7c21a1fac0279d664c8938f7d43f6bc6a2d1f3286593d3d907d6928c85bc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30d7c21a1fac0279d664c8938f7d43f6bc6a2d1f3286593d3d907d6928c85bc4", kill_on_drop: false }`
[INFO] [stdout] 30d7c21a1fac0279d664c8938f7d43f6bc6a2d1f3286593d3d907d6928c85bc4
[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] 265349fef5e689ffaccd3fb8a6b2a53df361b22ccc5b72fa330320a5c0162ebd
[INFO] running `Command { std: "docker" "start" "-a" "265349fef5e689ffaccd3fb8a6b2a53df361b22ccc5b72fa330320a5c0162ebd", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling curl v0.4.36
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking weezl v0.1.4
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]    Compiling zmq v0.9.2
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking bytemuck v1.5.1
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking simplog v1.2.2
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking gif v0.11.2
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling curl-sys v0.4.42+curl-7.76.0
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling zmq-sys v0.11.0
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking wasmi-validation v0.3.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking wasmi v0.6.2
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling flow_impl_derive v0.34.7
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking image v0.23.10
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]     Checking simpath v2.2.1
[INFO] [stderr]     Checking provider v0.34.7
[INFO] [stderr]     Checking flowcore v0.34.8
[INFO] [stderr]    Compiling flowstdlib v0.34.8
[INFO] [stderr]     Checking flowr v0.34.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.78s
[INFO] running `Command { std: "docker" "inspect" "265349fef5e689ffaccd3fb8a6b2a53df361b22ccc5b72fa330320a5c0162ebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "265349fef5e689ffaccd3fb8a6b2a53df361b22ccc5b72fa330320a5c0162ebd", kill_on_drop: false }`
[INFO] [stdout] 265349fef5e689ffaccd3fb8a6b2a53df361b22ccc5b72fa330320a5c0162ebd