[INFO] fetching crate laze 0.1.4...
[INFO] testing laze-0.1.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate laze 0.1.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate laze 0.1.4 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 laze 0.1.4
[INFO] finished tweaking crates.io crate laze 0.1.4
[INFO] tweaked toml for crates.io crate laze 0.1.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate laze 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 87bbca0a4f21c05ee9fc5fafa99c94844b35dfa529e98387b09dd375dac95b04
[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" "87bbca0a4f21c05ee9fc5fafa99c94844b35dfa529e98387b09dd375dac95b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87bbca0a4f21c05ee9fc5fafa99c94844b35dfa529e98387b09dd375dac95b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87bbca0a4f21c05ee9fc5fafa99c94844b35dfa529e98387b09dd375dac95b04", kill_on_drop: false }`
[INFO] [stdout] 87bbca0a4f21c05ee9fc5fafa99c94844b35dfa529e98387b09dd375dac95b04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b18a0a70bf1b1cd9f030921cd29b1b718b6e0011ee3ace568ea6709acd056811
[INFO] running `Command { std: "docker" "start" "-a" "b18a0a70bf1b1cd9f030921cd29b1b718b6e0011ee3ace568ea6709acd056811", kill_on_drop: false }`
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]    Compiling simple-error v0.2.3
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]    Compiling derive_builder v0.10.2
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling serde_yaml v0.8.17
[INFO] [stderr]    Compiling treestate v0.1.0
[INFO] [stderr]    Compiling laze v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Error`
[INFO] [stdout]   --> src/nested_env/expand.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Error,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.40s
[INFO] running `Command { std: "docker" "inspect" "b18a0a70bf1b1cd9f030921cd29b1b718b6e0011ee3ace568ea6709acd056811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b18a0a70bf1b1cd9f030921cd29b1b718b6e0011ee3ace568ea6709acd056811", kill_on_drop: false }`
[INFO] [stdout] b18a0a70bf1b1cd9f030921cd29b1b718b6e0011ee3ace568ea6709acd056811
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 7cded69255dbdf5c56ffc590e7fec2a27700e9da4941cf39f13e0b78436933a0
[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" "7cded69255dbdf5c56ffc590e7fec2a27700e9da4941cf39f13e0b78436933a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling laze v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.50s
[INFO] running `Command { std: "docker" "inspect" "7cded69255dbdf5c56ffc590e7fec2a27700e9da4941cf39f13e0b78436933a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cded69255dbdf5c56ffc590e7fec2a27700e9da4941cf39f13e0b78436933a0", kill_on_drop: false }`
[INFO] [stdout] 7cded69255dbdf5c56ffc590e7fec2a27700e9da4941cf39f13e0b78436933a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1a18c030c555363955097acb39f42a85a640137c7d248ae0b9e9b603aa62926f
[INFO] running `Command { std: "docker" "start" "-a" "1a18c030c555363955097acb39f42a85a640137c7d248ae0b9e9b603aa62926f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/laze-ab5ca834cbb94069)
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test nested_env::expand::tests::no_expansion ... ok
[INFO] [stdout] test nested_env::expand::tests::no_error_missing ... ok
[INFO] [stdout] test nested_env::expand::tests::multi_expansion ... ok
[INFO] [stdout] test nested_env::expand::tests::error_missing ... ok
[INFO] [stdout] test nested_env::expand::tests::single_expansion_escaped ... ok
[INFO] [stdout] test nested_env::expand::tests::single_expansion ... ok
[INFO] [stdout] test nested_env::expand::tests::recursive ... ok
[INFO] [stdout] test nested_env::tests::test_assign_from_string_append ... ok
[INFO] [stdout] test nested_env::tests::test_assign_from_string_override ... ok
[INFO] [stdout] test nested_env::tests::test_basic ... ok
[INFO] [stdout] test nested_env::tests::test_assign_from_string_override_list ... ok
[INFO] [stdout] test nested_env::tests::test_merge_overwriting_single ... ok
[INFO] [stdout] test nested_env::tests::test_merge_overwriting_with_list ... ok
[INFO] [stdout] test nested_env::tests::test_merge_overwriting_list ... ok
[INFO] [stdout] test nested_env::tests::test_merge_nonexisting_single ... ok
[INFO] [stdout] test ninja::tests::build_with_deps ... ok
[INFO] [stdout] test nested_env::tests::test_merge_merging_list ... ok
[INFO] [stdout] test ninja::tests::build_simple ... ok
[INFO] [stdout] test nested_env::tests::test_mergeopts ... ok
[INFO] [stdout] test ninja::tests::build_with_input ... ok
[INFO] [stdout] test ninja::tests::rule ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1a18c030c555363955097acb39f42a85a640137c7d248ae0b9e9b603aa62926f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a18c030c555363955097acb39f42a85a640137c7d248ae0b9e9b603aa62926f", kill_on_drop: false }`
[INFO] [stdout] 1a18c030c555363955097acb39f42a85a640137c7d248ae0b9e9b603aa62926f