[INFO] fetching crate ijson 0.1.4...
[INFO] checking ijson-0.1.4 against master#35d55b34bffd51384ac430cc20852b7d16dd5a90 for pr-145108
[INFO] extracting crate ijson 0.1.4 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate ijson 0.1.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ijson 0.1.4
[INFO] tweaked toml for crates.io crate ijson 0.1.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ijson 0.1.4 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 ijson 0.1.4 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mockalloc-macros v0.1.0
[INFO] [stderr]   Downloaded mockalloc v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3d185320a82df264e9d79ccfe1e7fb6b7bfbecb135a673df5b033ef131d6414b
[INFO] running `Command { std: "docker" "start" "-a" "3d185320a82df264e9d79ccfe1e7fb6b7bfbecb135a673df5b033ef131d6414b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d185320a82df264e9d79ccfe1e7fb6b7bfbecb135a673df5b033ef131d6414b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d185320a82df264e9d79ccfe1e7fb6b7bfbecb135a673df5b033ef131d6414b", kill_on_drop: false }`
[INFO] [stdout] 3d185320a82df264e9d79ccfe1e7fb6b7bfbecb135a673df5b033ef131d6414b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 18b79bdd946d331f9bb8793681fa61d18ffec0fb008a2598c9db7a66d2d7fd2c
[INFO] running `Command { std: "docker" "start" "-a" "18b79bdd946d331f9bb8793681fa61d18ffec0fb008a2598c9db7a66d2d7fd2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.167
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr] error: could not compile `smallvec` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   could not execute process `/opt/rustwide/rustup-home/toolchains/35d55b34bffd51384ac430cc20852b7d16dd5a90/bin/rustc --crate-name smallvec --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smallvec-1.13.2/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 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("arbitrary", "const_generics", "const_new", "debugger_visualizer", "drain_filter", "drain_keep_rest", "may_dangle", "serde", "specialization", "union", "write"))' -C metadata=ee939b8b58cbb3cf -C extra-filename=-338b1aba145f1c16 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "18b79bdd946d331f9bb8793681fa61d18ffec0fb008a2598c9db7a66d2d7fd2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18b79bdd946d331f9bb8793681fa61d18ffec0fb008a2598c9db7a66d2d7fd2c", kill_on_drop: false }`
[INFO] [stdout] 18b79bdd946d331f9bb8793681fa61d18ffec0fb008a2598c9db7a66d2d7fd2c