[INFO] fetching crate diff-struct 0.5.3...
[INFO] checking diff-struct-0.5.3 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393-1
[INFO] extracting crate diff-struct 0.5.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate diff-struct 0.5.3 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate diff-struct 0.5.3
[INFO] finished tweaking crates.io crate diff-struct 0.5.3
[INFO] tweaked toml for crates.io crate diff-struct 0.5.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num v0.4.1
[INFO] [stderr]   Downloaded num-iter v0.1.43
[INFO] [stderr]   Downloaded num-integer v0.1.45
[INFO] [stderr]   Downloaded num-bigint v0.4.4
[INFO] [stderr]   Downloaded quickcheck_macros v0.8.0
[INFO] [stderr]   Downloaded num-complex v0.4.4
[INFO] [stderr]   Downloaded quickcheck v0.8.5
[INFO] [stderr]   Downloaded env_logger v0.6.2
[INFO] [stderr]   Downloaded num-rational v0.4.1
[INFO] [stderr]   Downloaded diff_derive v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14210bca822e43c23faa8e8b5beee9fc2900f44f74b28f40d72f3a8792f40739
[INFO] running `Command { std: "docker" "start" "-a" "14210bca822e43c23faa8e8b5beee9fc2900f44f74b28f40d72f3a8792f40739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14210bca822e43c23faa8e8b5beee9fc2900f44f74b28f40d72f3a8792f40739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14210bca822e43c23faa8e8b5beee9fc2900f44f74b28f40d72f3a8792f40739", kill_on_drop: false }`
[INFO] [stdout] 14210bca822e43c23faa8e8b5beee9fc2900f44f74b28f40d72f3a8792f40739
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f690c507c7c8ef70039bebf40ac04164caf07393ab15164528631d48bb5e3f32
[INFO] running `Command { std: "docker" "start" "-a" "f690c507c7c8ef70039bebf40ac04164caf07393ab15164528631d48bb5e3f32", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking quickcheck v0.8.5
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling diff_derive v0.2.3
[INFO] [stderr]    Compiling quickcheck_derive v0.3.0
[INFO] [stderr]     Checking diff-struct v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.39s
[INFO] running `Command { std: "docker" "inspect" "f690c507c7c8ef70039bebf40ac04164caf07393ab15164528631d48bb5e3f32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f690c507c7c8ef70039bebf40ac04164caf07393ab15164528631d48bb5e3f32", kill_on_drop: false }`
[INFO] [stdout] f690c507c7c8ef70039bebf40ac04164caf07393ab15164528631d48bb5e3f32