[INFO] fetching crate dtab 0.0.2...
[INFO] testing dtab-0.0.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate dtab 0.0.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dtab 0.0.2 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 dtab 0.0.2
[INFO] finished tweaking crates.io crate dtab 0.0.2
[INFO] tweaked toml for crates.io crate dtab 0.0.2 written to /workspace/builds/worker-8/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pretty_assertions v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] addd2a7905878d4d72327929f0802e13f23f1dd8e57b5c34068ea5dcc6d63419
[INFO] running `Command { std: "docker" "start" "-a" "addd2a7905878d4d72327929f0802e13f23f1dd8e57b5c34068ea5dcc6d63419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "addd2a7905878d4d72327929f0802e13f23f1dd8e57b5c34068ea5dcc6d63419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "addd2a7905878d4d72327929f0802e13f23f1dd8e57b5c34068ea5dcc6d63419", kill_on_drop: false }`
[INFO] [stdout] addd2a7905878d4d72327929f0802e13f23f1dd8e57b5c34068ea5dcc6d63419
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92a719dd158b99a283de39d0303844eb2f022f2e16be123e0569aba7f8d3adec
[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" "92a719dd158b99a283de39d0303844eb2f022f2e16be123e0569aba7f8d3adec", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling dtab v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.02s
[INFO] running `Command { std: "docker" "inspect" "92a719dd158b99a283de39d0303844eb2f022f2e16be123e0569aba7f8d3adec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92a719dd158b99a283de39d0303844eb2f022f2e16be123e0569aba7f8d3adec", kill_on_drop: false }`
[INFO] [stdout] 92a719dd158b99a283de39d0303844eb2f022f2e16be123e0569aba7f8d3adec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 4a8f1df44915cbc6ddefbd01e7f080c191ebf52d7888c7cc1d75675aacf60b08
[INFO] running `Command { std: "docker" "start" "-a" "4a8f1df44915cbc6ddefbd01e7f080c191ebf52d7888c7cc1d75675aacf60b08", kill_on_drop: false }`
[INFO] [stderr]    Compiling difference v1.0.0
[INFO] [stderr]    Compiling pretty_assertions v0.2.1
[INFO] [stderr]    Compiling dtab v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::NameTree::*`
[INFO] [stdout]    --> src/nametree.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |     use super::NameTree::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `Command { std: "docker" "inspect" "4a8f1df44915cbc6ddefbd01e7f080c191ebf52d7888c7cc1d75675aacf60b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a8f1df44915cbc6ddefbd01e7f080c191ebf52d7888c7cc1d75675aacf60b08", kill_on_drop: false }`
[INFO] [stdout] 4a8f1df44915cbc6ddefbd01e7f080c191ebf52d7888c7cc1d75675aacf60b08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ab7fb10a52ac1094e8961773f03cfa764e435b9c2a44559a2bc6583a3c8906af
[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" "ab7fb10a52ac1094e8961773f03cfa764e435b9c2a44559a2bc6583a3c8906af", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::NameTree::*`
[INFO] [stderr]    --> src/nametree.rs:277:9
[INFO] [stderr]     |
[INFO] [stderr] 277 |     use super::NameTree::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dtab-4e6be245a11d2793
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test nametree::tests::fail_alt ... ok
[INFO] [stdout] test nametree::tests::multiple_alt ... ok
[INFO] [stdout] test nametree::tests::neg_alt ... ok
[INFO] [stdout] test nametree::tests::simple_weighted_union ... ok
[INFO] [stdout] test nametree::tests::simple_alt ... ok
[INFO] [stdout] test nametree::tests::simple_union ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dtab
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs - dentry (line 37) ... ok
[INFO] [stdout] test src/nametree.rs - nametree (line 59) ... ok
[INFO] [stdout] test src/nametree.rs - nametree (line 88) ... ok
[INFO] [stdout] test src/nametree.rs - nametree (line 125) ... ok
[INFO] [stdout] test src/nametree.rs - nametree (line 106) ... ok
[INFO] [stdout] test src/lib.rs - dtab (line 63) ... ok
[INFO] [stdout] test src/nametree.rs - nametree (line 22) ... ok
[INFO] [stdout] test src/nametree.rs - nametree (line 49) ... ok
[INFO] [stdout] test src/nametree.rs - nametree (line 73) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ab7fb10a52ac1094e8961773f03cfa764e435b9c2a44559a2bc6583a3c8906af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab7fb10a52ac1094e8961773f03cfa764e435b9c2a44559a2bc6583a3c8906af", kill_on_drop: false }`
[INFO] [stdout] ab7fb10a52ac1094e8961773f03cfa764e435b9c2a44559a2bc6583a3c8906af