[INFO] fetching crate exons 0.1.5...
[INFO] checking exons-0.1.5 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate exons 0.1.5 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate exons 0.1.5
[INFO] finished tweaking crates.io crate exons 0.1.5
[INFO] tweaked toml for crates.io crate exons 0.1.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate exons 0.1.5 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded io_utils v0.3.2
[INFO] [stderr]   Downloaded vector_utils v0.1.5
[INFO] [stderr]   Downloaded string_utils v0.1.4
[INFO] [stderr]   Downloaded permutation v0.2.5
[INFO] [stderr]   Downloaded superslice v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c2088178ca92e7f314df3030b847a9558088a6a5d3b8720deb074c908422833
[INFO] running `Command { std: "docker" "start" "-a" "7c2088178ca92e7f314df3030b847a9558088a6a5d3b8720deb074c908422833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c2088178ca92e7f314df3030b847a9558088a6a5d3b8720deb074c908422833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c2088178ca92e7f314df3030b847a9558088a6a5d3b8720deb074c908422833", kill_on_drop: false }`
[INFO] [stdout] 7c2088178ca92e7f314df3030b847a9558088a6a5d3b8720deb074c908422833
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c838fd56044a4e27dff4518ba9fa9bb2122f49d329c79986e4bdd2dca2dfc4d
[INFO] running `Command { std: "docker" "start" "-a" "2c838fd56044a4e27dff4518ba9fa9bb2122f49d329c79986e4bdd2dca2dfc4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking superslice v1.0.0
[INFO] [stderr]     Checking permutation v0.2.5
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking vector_utils v0.1.5
[INFO] [stderr]    Compiling cc v1.2.34
[INFO] [stderr]     Checking string_utils v0.1.4
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling lz4-sys v1.11.1+lz4-1.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking lz4 v1.28.1
[INFO] [stderr]     Checking io_utils v0.3.2
[INFO] [stderr]     Checking exons v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.34s
[INFO] running `Command { std: "docker" "inspect" "2c838fd56044a4e27dff4518ba9fa9bb2122f49d329c79986e4bdd2dca2dfc4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c838fd56044a4e27dff4518ba9fa9bb2122f49d329c79986e4bdd2dca2dfc4d", kill_on_drop: false }`
[INFO] [stdout] 2c838fd56044a4e27dff4518ba9fa9bb2122f49d329c79986e4bdd2dca2dfc4d