[INFO] fetching crate diff-struct 0.3.1...
[INFO] testing diff-struct-0.3.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate diff-struct 0.3.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate diff-struct 0.3.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate diff-struct 0.3.1
[INFO] finished tweaking crates.io crate diff-struct 0.3.1
[INFO] tweaked toml for crates.io crate diff-struct 0.3.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac33ec89b93b0205a79a3237b625527361e222b4dbcb5a689b0216d03c2cbed7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ac33ec89b93b0205a79a3237b625527361e222b4dbcb5a689b0216d03c2cbed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac33ec89b93b0205a79a3237b625527361e222b4dbcb5a689b0216d03c2cbed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac33ec89b93b0205a79a3237b625527361e222b4dbcb5a689b0216d03c2cbed7", kill_on_drop: false }`
[INFO] [stdout] ac33ec89b93b0205a79a3237b625527361e222b4dbcb5a689b0216d03c2cbed7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1000b0c7d2d417ef6edf755f791cb495e583c2347716e0ce03405de0023adf7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f1000b0c7d2d417ef6edf755f791cb495e583c2347716e0ce03405de0023adf7", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff_derive v0.1.2
[INFO] [stderr]    Compiling diff-struct v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.56s
[INFO] running `Command { std: "docker" "inspect" "f1000b0c7d2d417ef6edf755f791cb495e583c2347716e0ce03405de0023adf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1000b0c7d2d417ef6edf755f791cb495e583c2347716e0ce03405de0023adf7", kill_on_drop: false }`
[INFO] [stdout] f1000b0c7d2d417ef6edf755f791cb495e583c2347716e0ce03405de0023adf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9db2dd5d809d4d3da124104af7b2d6d8a2c3d8d3f7d9d2e7f49a2a25eb56089b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9db2dd5d809d4d3da124104af7b2d6d8a2c3d8d3f7d9d2e7f49a2a25eb56089b", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff-struct v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "9db2dd5d809d4d3da124104af7b2d6d8a2c3d8d3f7d9d2e7f49a2a25eb56089b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9db2dd5d809d4d3da124104af7b2d6d8a2c3d8d3f7d9d2e7f49a2a25eb56089b", kill_on_drop: false }`
[INFO] [stdout] 9db2dd5d809d4d3da124104af7b2d6d8a2c3d8d3f7d9d2e7f49a2a25eb56089b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66b111a42ef8a8b17de559e4585a43e1b2ae763629b5de8dd2b488c1beb8736f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "66b111a42ef8a8b17de559e4585a43e1b2ae763629b5de8dd2b488c1beb8736f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/diff-4d7639f454e657dc
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::numeric_diffs ... ok
[INFO] [stdout] test tests::test_char_string ... ok
[INFO] [stdout] test tests::test_opt ... ok
[INFO] [stdout] test tests::test_tuple_derive ... ok
[INFO] [stdout] test tests::test_apply ... ok
[INFO] [stdout] test tests::test_vecs ... ok
[INFO] [stdout] test tests::test_derive ... ok
[INFO] [stdout] test tests::test_maps ... ok
[INFO] [stderr]    Doc-tests diff
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Diff::identity (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "66b111a42ef8a8b17de559e4585a43e1b2ae763629b5de8dd2b488c1beb8736f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66b111a42ef8a8b17de559e4585a43e1b2ae763629b5de8dd2b488c1beb8736f", kill_on_drop: false }`
[INFO] [stdout] 66b111a42ef8a8b17de559e4585a43e1b2ae763629b5de8dd2b488c1beb8736f