[INFO] fetching crate muncher 0.6.1...
[INFO] testing muncher-0.6.1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate muncher 0.6.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate muncher 0.6.1 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate muncher 0.6.1
[INFO] finished tweaking crates.io crate muncher 0.6.1
[INFO] tweaked toml for crates.io crate muncher 0.6.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 11bf7e53da417130b285b2517770c4f50e4a8535cfc37dbd4d06ccd42fd9e6ce
[INFO] running `Command { std: "docker" "start" "-a" "11bf7e53da417130b285b2517770c4f50e4a8535cfc37dbd4d06ccd42fd9e6ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11bf7e53da417130b285b2517770c4f50e4a8535cfc37dbd4d06ccd42fd9e6ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11bf7e53da417130b285b2517770c4f50e4a8535cfc37dbd4d06ccd42fd9e6ce", kill_on_drop: false }`
[INFO] [stdout] 11bf7e53da417130b285b2517770c4f50e4a8535cfc37dbd4d06ccd42fd9e6ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 013345e73f3d58f34a9812d80b1c539ba5876f6b409656f6426f094efc5dee49
[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" "013345e73f3d58f34a9812d80b1c539ba5876f6b409656f6426f094efc5dee49", kill_on_drop: false }`
[INFO] [stderr]    Compiling muncher v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "013345e73f3d58f34a9812d80b1c539ba5876f6b409656f6426f094efc5dee49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "013345e73f3d58f34a9812d80b1c539ba5876f6b409656f6426f094efc5dee49", kill_on_drop: false }`
[INFO] [stdout] 013345e73f3d58f34a9812d80b1c539ba5876f6b409656f6426f094efc5dee49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 28be3ecf34d9de80f67342a02cfcf943e33318ea4d6fae115d9a298c1f1fd6b5
[INFO] running `Command { std: "docker" "start" "-a" "28be3ecf34d9de80f67342a02cfcf943e33318ea4d6fae115d9a298c1f1fd6b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling muncher v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "28be3ecf34d9de80f67342a02cfcf943e33318ea4d6fae115d9a298c1f1fd6b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28be3ecf34d9de80f67342a02cfcf943e33318ea4d6fae115d9a298c1f1fd6b5", kill_on_drop: false }`
[INFO] [stdout] 28be3ecf34d9de80f67342a02cfcf943e33318ea4d6fae115d9a298c1f1fd6b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 41f65921da02edd33cffe5bd3e136ca94d11a3648699835f4c6c84cff5112e93
[INFO] running `Command { std: "docker" "start" "-a" "41f65921da02edd33cffe5bd3e136ca94d11a3648699835f4c6c84cff5112e93", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/muncher-b2aed698c085177f)
[INFO] [stdout] running 13 tests
[INFO] [stdout] test muncher::tests::advance_muncher ... ok
[INFO] [stdout] test muncher::tests::test_position ... ok
[INFO] [stdout] test muncher::tests::test_fork ... ok
[INFO] [stdout] test muncher::tests::test_eat_eol ... ok
[INFO] [stdout] test muncher::tests::seek_muncher ... ok
[INFO] [stdout] test muncher::tests::peek_range_of ... ok
[INFO] [stdout] test muncher::tests::end_eat_while_muncher ... ok
[INFO] [stdout] test muncher::tests::test_stack_code ... ok
[INFO] [stdout] test muncher::tests::bounds_error_this_panics_if_bounds_wrong ... ok
[INFO] [stdout] test muncher::tests::test_stack_fail ... ok
[INFO] [stdout] test muncher::tests::test_stack_math ... ok
[INFO] [stderr]    Doc-tests muncher
[INFO] [stdout] test muncher::tests::peek_count ... ok
[INFO] [stdout] test muncher::tests::peek_muncher ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::eat (line 380) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::new (line 155) ... ok
[INFO] [stdout] test src/lib.rs - (line 49) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::peek_until_count (line 309) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::peek_range_of (line 339) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::brace_stack (line 197) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::eat_range_of (line 661) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::peek_until (line 278) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::seek (line 360) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::fork (line 174) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::eat_until_count (line 630) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::cursor_position (line 226) ... ok
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::eat_until (line 593) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Stack::eat (line 47) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Stack::new (line 29) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Stack::is_matched (line 94) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.49s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "41f65921da02edd33cffe5bd3e136ca94d11a3648699835f4c6c84cff5112e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41f65921da02edd33cffe5bd3e136ca94d11a3648699835f4c6c84cff5112e93", kill_on_drop: false }`
[INFO] [stdout] 41f65921da02edd33cffe5bd3e136ca94d11a3648699835f4c6c84cff5112e93