[INFO] fetching crate segsource 0.2.0...
[INFO] testing segsource-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate segsource 0.2.0 into /workspace/builds/worker-111/source
[INFO] validating manifest of crates.io crate segsource 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate segsource 0.2.0
[INFO] finished tweaking crates.io crate segsource 0.2.0
[INFO] tweaked toml for crates.io crate segsource 0.2.0 written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a491c061f4ebbe584608f920067e974f777380f73de009aa515f37c5e62dfede
[INFO] running `Command { std: "docker" "start" "-a" "a491c061f4ebbe584608f920067e974f777380f73de009aa515f37c5e62dfede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a491c061f4ebbe584608f920067e974f777380f73de009aa515f37c5e62dfede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a491c061f4ebbe584608f920067e974f777380f73de009aa515f37c5e62dfede", kill_on_drop: false }`
[INFO] [stdout] a491c061f4ebbe584608f920067e974f777380f73de009aa515f37c5e62dfede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6f082d2813aa74cd5266dc4c99978c41743e0d713fa51648163900b1c5a957c
[INFO] running `Command { std: "docker" "start" "-a" "c6f082d2813aa74cd5266dc4c99978c41743e0d713fa51648163900b1c5a957c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling here v1.1.1
[INFO] [stderr]    Compiling pmhelp-internal v0.0.2
[INFO] [stderr]    Compiling pmhelp v0.0.2
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling segsource-derive v0.2.0
[INFO] [stderr]    Compiling snafu v0.6.10
[INFO] [stderr]    Compiling segsource v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.69s
[INFO] running `Command { std: "docker" "inspect" "c6f082d2813aa74cd5266dc4c99978c41743e0d713fa51648163900b1c5a957c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6f082d2813aa74cd5266dc4c99978c41743e0d713fa51648163900b1c5a957c", kill_on_drop: false }`
[INFO] [stdout] c6f082d2813aa74cd5266dc4c99978c41743e0d713fa51648163900b1c5a957c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abf6ddbd084012894a23343bd3640c495ae90756242dbae79f310d900a055aab
[INFO] running `Command { std: "docker" "start" "-a" "abf6ddbd084012894a23343bd3640c495ae90756242dbae79f310d900a055aab", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling color-backtrace v0.5.1
[INFO] [stderr]    Compiling segsource v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.72s
[INFO] running `Command { std: "docker" "inspect" "abf6ddbd084012894a23343bd3640c495ae90756242dbae79f310d900a055aab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abf6ddbd084012894a23343bd3640c495ae90756242dbae79f310d900a055aab", kill_on_drop: false }`
[INFO] [stdout] abf6ddbd084012894a23343bd3640c495ae90756242dbae79f310d900a055aab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8a3e1258e0797c34b0650c851901eb55d44dc1d8f1431715d35d0ab2a7f5f82a
[INFO] running `Command { std: "docker" "start" "-a" "8a3e1258e0797c34b0650c851901eb55d44dc1d8f1431715d35d0ab2a7f5f82a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/segsource-a22e1c251ca57b66)
[INFO] [stdout] running 11 tests
[INFO] [stdout] test testing::segment::all_after ... ok
[INFO] [stdout] test testing::segment::all_before ... ok
[INFO] [stdout] test testing::segment::basic_be_test ... ok
[INFO] [stdout] test testing::segment::basic_le_test ... ok
[INFO] [stdout] test testing::segment::basic_test_1 ... ok
[INFO] [stdout] test testing::segment::next_n_test ... ok
[INFO] [stdout] test testing::segment::next_n_as_slice_test ... ok
[INFO] [stdout] test testing::segment::test_indexing ... ok
[INFO] [stdout] test testing::segment::test_next_items_are ... ok
[INFO] [stderr]    Doc-tests segsource
[INFO] [stdout] test testing::segment::test_move_to ... ok
[INFO] [stdout] test testing::segment::test_move_by ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 79) ... ok
[INFO] [stdout] test src/lib.rs - (line 64) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.54s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8a3e1258e0797c34b0650c851901eb55d44dc1d8f1431715d35d0ab2a7f5f82a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a3e1258e0797c34b0650c851901eb55d44dc1d8f1431715d35d0ab2a7f5f82a", kill_on_drop: false }`
[INFO] [stdout] 8a3e1258e0797c34b0650c851901eb55d44dc1d8f1431715d35d0ab2a7f5f82a