[INFO] fetching crate source 0.2.0...
[INFO] testing source-0.2.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate source 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate source 0.2.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate source 0.2.0
[INFO] finished tweaking crates.io crate source 0.2.0
[INFO] tweaked toml for crates.io crate source 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cffd3fde551ac418422b9d3cc139bb11dc9dc349d2ab493b11490d914982d857
[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" "cffd3fde551ac418422b9d3cc139bb11dc9dc349d2ab493b11490d914982d857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cffd3fde551ac418422b9d3cc139bb11dc9dc349d2ab493b11490d914982d857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cffd3fde551ac418422b9d3cc139bb11dc9dc349d2ab493b11490d914982d857", kill_on_drop: false }`
[INFO] [stdout] cffd3fde551ac418422b9d3cc139bb11dc9dc349d2ab493b11490d914982d857
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--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] b1baeaf89317fbbf0966eea8477b28f7bad2be5f48e0ab642e7c43dfebfcc381
[INFO] running `Command { std: "docker" "start" "-a" "b1baeaf89317fbbf0966eea8477b28f7bad2be5f48e0ab642e7c43dfebfcc381", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8-chars v0.1.4
[INFO] [stderr]    Compiling source v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "b1baeaf89317fbbf0966eea8477b28f7bad2be5f48e0ab642e7c43dfebfcc381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1baeaf89317fbbf0966eea8477b28f7bad2be5f48e0ab642e7c43dfebfcc381", kill_on_drop: false }`
[INFO] [stdout] b1baeaf89317fbbf0966eea8477b28f7bad2be5f48e0ab642e7c43dfebfcc381
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f34d4af89bedc3e0e4bbadf04bda91ff1fcfca6364dd4a0507e7d85a039499da
[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" "f34d4af89bedc3e0e4bbadf04bda91ff1fcfca6364dd4a0507e7d85a039499da", kill_on_drop: false }`
[INFO] [stderr]    Compiling source v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "f34d4af89bedc3e0e4bbadf04bda91ff1fcfca6364dd4a0507e7d85a039499da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f34d4af89bedc3e0e4bbadf04bda91ff1fcfca6364dd4a0507e7d85a039499da", kill_on_drop: false }`
[INFO] [stdout] f34d4af89bedc3e0e4bbadf04bda91ff1fcfca6364dd4a0507e7d85a039499da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 564fbfdac70fe2c2f3b05c7decd8e8dd56fb226a36dfef85f03e4bb99245c738
[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" "564fbfdac70fe2c2f3b05c7decd8e8dd56fb226a36dfef85f03e4bb99245c738", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 30 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/source-0a21e38f466a885f)
[INFO] [stdout] test test::append_works ... ok
[INFO] [stdout] test test::concat_works ... ok
[INFO] [stdout] test test::has_next::returns_false_for_empty_sources ... ok
[INFO] [stdout] test test::has_next::returns_false_when_all_elements_are_consumed ... ok
[INFO] [stdout] test test::has_next::does_not_modify_the_source_elements ... ok
[INFO] [stdout] test test::join::works ... ok
[INFO] [stdout] test test::join::works_with_both_str_and_string ... ok
[INFO] [stdout] test test::peek::peeking_does_not_consume_chars ... ok
[INFO] [stdout] test test::fold_works ... ok
[INFO] [stdout] test test::flatmap_works ... ok
[INFO] [stdout] test test::filter_works ... ok
[INFO] [stdout] test test::debug::debug_converts_into_source_macro ... ok
[INFO] [stdout] test test::map_works ... ok
[INFO] [stdout] test test::peek::allows_to_peek_ahead ... ok
[INFO] [stderr]    Doc-tests source
[INFO] [stdout] test test::peek::peek_works ... ok
[INFO] [stdout] test test::source_macro::allows_to_convert_from_elements ... ok
[INFO] [stdout] test test::peek::peeking_works_after_next ... ok
[INFO] [stdout] test test::source_macro::allows_to_create_empty_sources ... ok
[INFO] [stdout] test test::source_macro::allows_to_replicate_a_given_element ... ok
[INFO] [stdout] test test::peek::peeking_works_twice ... ok
[INFO] [stdout] test test::conversions::allows_to_convert_into_iterator ... ok
[INFO] [stdout] test test::prepend_works ... ok
[INFO] [stdout] test test::source_macro::allows_to_create_sources_with_one_element ... ok
[INFO] [stdout] test test::source_macro::allows_to_trailing_commas ... ok
[INFO] [stdout] test test::conversions::allows_to_convert_from_iterator ... ok
[INFO] [stdout] test test::count_works ... ok
[INFO] [stdout] test test::debug::debug_uses_debug ... ok
[INFO] [stdout] test test::flatten_works ... ok
[INFO] [stdout] test test::has_next::returns_true_for_non_empty_sources ... ok
[INFO] [stdout] test test::join::works_with_empty_inputs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "564fbfdac70fe2c2f3b05c7decd8e8dd56fb226a36dfef85f03e4bb99245c738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "564fbfdac70fe2c2f3b05c7decd8e8dd56fb226a36dfef85f03e4bb99245c738", kill_on_drop: false }`
[INFO] [stdout] 564fbfdac70fe2c2f3b05c7decd8e8dd56fb226a36dfef85f03e4bb99245c738