[INFO] cloning repository https://github.com/quorauk/synth-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quorauk/synth-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquorauk%2Fsynth-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquorauk%2Fsynth-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f28f6455865c1624c57e5765afd8a18af26c393b
[INFO] checking quorauk/synth-experiment against try#804fff1ae95da9d03bd44eee27f258020a575dab for pr-146013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquorauk%2Fsynth-experiment" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/quorauk/synth-experiment
[INFO] finished tweaking git repo https://github.com/quorauk/synth-experiment
[INFO] tweaked toml for git repo https://github.com/quorauk/synth-experiment written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/quorauk/synth-experiment on toolchain 804fff1ae95da9d03bd44eee27f258020a575dab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/quorauk/synth-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47cf39e5e730714293a65c2d143adf85abea29f4c8c885128ba61921be6b69e1
[INFO] running `Command { std: "docker" "start" "-a" "47cf39e5e730714293a65c2d143adf85abea29f4c8c885128ba61921be6b69e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47cf39e5e730714293a65c2d143adf85abea29f4c8c885128ba61921be6b69e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47cf39e5e730714293a65c2d143adf85abea29f4c8c885128ba61921be6b69e1", kill_on_drop: false }`
[INFO] [stdout] 47cf39e5e730714293a65c2d143adf85abea29f4c8c885128ba61921be6b69e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 359ef631710eceb8b74a327586edb11f6863166eacddb9ff7a6bebd5de4f0947
[INFO] running `Command { std: "docker" "start" "-a" "359ef631710eceb8b74a327586edb11f6863166eacddb9ff7a6bebd5de4f0947", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling cpal v0.15.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking dasp_sample v0.11.0
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]     Checking hound v3.5.0
[INFO] [stderr]     Checking assert_float_eq v1.1.3
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking symphonia-core v0.5.3
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling x11 v2.21.0
[INFO] [stderr]    Compiling device_query v1.1.3
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]     Checking symphonia-metadata v0.5.3
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr] error: could not compile `nix` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   could not execute process `/opt/rustwide/rustup-home/toolchains/804fff1ae95da9d03bd44eee27f258020a575dab/bin/rustc --crate-name nix --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.24.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="ioctl"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("acct", "aio", "default", "dir", "env", "event", "feature", "fs", "hostname", "inotify", "ioctl", "kmod", "memoffset", "mman", "mount", "mqueue", "net", "personality", "poll", "process", "pthread", "ptrace", "quota", "reboot", "resource", "sched", "signal", "socket", "term", "time", "ucontext", "uio", "user", "zerocopy"))' -C metadata=c14ac1f2a5ed664f -C extra-filename=-2a41ceddf4caec6f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-6dcfbc6bad33d8b2.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-d541ac7a75168aa5.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-d1739010455140ea.rmeta --cap-lints allow --cap-lints=forbid` (never executed)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No such file or directory (os error 2)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "359ef631710eceb8b74a327586edb11f6863166eacddb9ff7a6bebd5de4f0947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "359ef631710eceb8b74a327586edb11f6863166eacddb9ff7a6bebd5de4f0947", kill_on_drop: false }`
[INFO] [stdout] 359ef631710eceb8b74a327586edb11f6863166eacddb9ff7a6bebd5de4f0947