[INFO] fetching crate rds_lock 1.0.4...
[INFO] checking rds_lock-1.0.4 against master#35d55b34bffd51384ac430cc20852b7d16dd5a90 for pr-145108
[INFO] extracting crate rds_lock 1.0.4 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate rds_lock 1.0.4
[INFO] finished tweaking crates.io crate rds_lock 1.0.4
[INFO] tweaked toml for crates.io crate rds_lock 1.0.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rds_lock 1.0.4 on toolchain 35d55b34bffd51384ac430cc20852b7d16dd5a90
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35d55b34bffd51384ac430cc20852b7d16dd5a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rds_lock 1.0.4 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" "+35d55b34bffd51384ac430cc20852b7d16dd5a90" "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 backon v1.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+35d55b34bffd51384ac430cc20852b7d16dd5a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b9db8ff3391305c451c7a703639b960a64a88357b0d718d1f5f56cb6feef4cc
[INFO] running `Command { std: "docker" "start" "-a" "2b9db8ff3391305c451c7a703639b960a64a88357b0d718d1f5f56cb6feef4cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b9db8ff3391305c451c7a703639b960a64a88357b0d718d1f5f56cb6feef4cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b9db8ff3391305c451c7a703639b960a64a88357b0d718d1f5f56cb6feef4cc", kill_on_drop: false }`
[INFO] [stdout] 2b9db8ff3391305c451c7a703639b960a64a88357b0d718d1f5f56cb6feef4cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+35d55b34bffd51384ac430cc20852b7d16dd5a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 859a98e451edea3b8e96633d8c5a935903bbb7a390d8b612b6fa0bdf276d6ae9
[INFO] running `Command { std: "docker" "start" "-a" "859a98e451edea3b8e96633d8c5a935903bbb7a390d8b612b6fa0bdf276d6ae9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
[INFO] [stderr]     Checking litemap v0.7.5
[INFO] [stderr]     Checking writeable v0.5.5
[INFO] [stderr]    Compiling icu_properties_data v1.5.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.1
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking utf16_iter v1.0.5
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking utf8_iter v1.0.4
[INFO] [stderr]     Checking write16 v1.0.0
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking sha1_smol v1.0.1
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking backon v1.4.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking uuid v1.16.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr] error: could not compile `synstructure` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   could not execute process `/opt/rustwide/rustup-home/toolchains/35d55b34bffd51384ac430cc20852b7d16dd5a90/bin/rustc --crate-name synstructure --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/synstructure-0.13.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="proc-macro"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "proc-macro"))' -C metadata=5108e512da8e4d2c -C extra-filename=-c17ddd8dfd992945 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-21e3e1a6b62590dc.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d9cd4251aac42a18.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-d15ae4b3f0987337.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] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/syn-d15ae4b3f0987337.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No such file or directory (os error 2)
[INFO] running `Command { std: "docker" "inspect" "859a98e451edea3b8e96633d8c5a935903bbb7a390d8b612b6fa0bdf276d6ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "859a98e451edea3b8e96633d8c5a935903bbb7a390d8b612b6fa0bdf276d6ae9", kill_on_drop: false }`
[INFO] [stdout] 859a98e451edea3b8e96633d8c5a935903bbb7a390d8b612b6fa0bdf276d6ae9