[INFO] fetching crate undo 0.47.0...
[INFO] testing undo-0.47.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate undo 0.47.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate undo 0.47.0 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 undo 0.47.0
[INFO] finished tweaking crates.io crate undo 0.47.0
[INFO] tweaked toml for crates.io crate undo 0.47.0 written to /workspace/builds/worker-3/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arrayvec v0.7.2
[INFO] [stderr]   Downloaded colored v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0a6db7aeb5de5ecc4ce035c15f84121aa37178baebb9da05a44b74dc9e0cdaca
[INFO] running `Command { std: "docker" "start" "-a" "0a6db7aeb5de5ecc4ce035c15f84121aa37178baebb9da05a44b74dc9e0cdaca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a6db7aeb5de5ecc4ce035c15f84121aa37178baebb9da05a44b74dc9e0cdaca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a6db7aeb5de5ecc4ce035c15f84121aa37178baebb9da05a44b74dc9e0cdaca", kill_on_drop: false }`
[INFO] [stdout] 0a6db7aeb5de5ecc4ce035c15f84121aa37178baebb9da05a44b74dc9e0cdaca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] d0f51cf8859f896d92909ab895c1a46c66f41f24fea7cbcf15e5959fc83574bd
[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" "d0f51cf8859f896d92909ab895c1a46c66f41f24fea7cbcf15e5959fc83574bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling undo v0.47.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.76s
[INFO] running `Command { std: "docker" "inspect" "d0f51cf8859f896d92909ab895c1a46c66f41f24fea7cbcf15e5959fc83574bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0f51cf8859f896d92909ab895c1a46c66f41f24fea7cbcf15e5959fc83574bd", kill_on_drop: false }`
[INFO] [stdout] d0f51cf8859f896d92909ab895c1a46c66f41f24fea7cbcf15e5959fc83574bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0b65f4172f83a1d3dbb4796ed0191e15601b4c8d20e7ef81ea12f0bef86c852f
[INFO] running `Command { std: "docker" "start" "-a" "0b65f4172f83a1d3dbb4796ed0191e15601b4c8d20e7ef81ea12f0bef86c852f", kill_on_drop: false }`
[INFO] [stderr]    Compiling undo v0.47.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `Command { std: "docker" "inspect" "0b65f4172f83a1d3dbb4796ed0191e15601b4c8d20e7ef81ea12f0bef86c852f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b65f4172f83a1d3dbb4796ed0191e15601b4c8d20e7ef81ea12f0bef86c852f", kill_on_drop: false }`
[INFO] [stdout] 0b65f4172f83a1d3dbb4796ed0191e15601b4c8d20e7ef81ea12f0bef86c852f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 22bda3ef3d441e3008ec58d8836db649486d7e27d5790a64e6d9e8537a58d2b4
[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" "22bda3ef3d441e3008ec58d8836db649486d7e27d5790a64e6d9e8537a58d2b4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/undo-8bdbf4d2470acee9)
[INFO] [stdout] running 9 tests
[INFO] [stderr]    Doc-tests undo
[INFO] [stdout] test record::tests::annul ... ok
[INFO] [stdout] test record::tests::checkpoint_commit ... ok
[INFO] [stdout] test record::tests::queue_commit ... ok
[INFO] [stdout] test history::tests::go_to ... ok
[INFO] [stdout] test record::tests::checkpoint_saved ... ok
[INFO] [stdout] test record::tests::checkpoint_cancel ... ok
[INFO] [stdout] test record::tests::go_to ... ok
[INFO] [stdout] test record::tests::dyn_trait ... ok
[INFO] [stdout] test timeline::tests::limit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/history.rs - history::Builder (line 442) ... ok
[INFO] [stdout] test src/record.rs - record::Builder (line 418) ... ok
[INFO] [stdout] test src/timeline.rs - timeline::Timeline (line 26) ... ok
[INFO] [stdout] test src/record.rs - record::Record (line 32) ... ok
[INFO] [stdout] test src/record.rs - record::Queue (line 517) ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/history.rs - history::Queue (line 521) ... ok
[INFO] [stdout] test src/history.rs - history::History (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.56s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "22bda3ef3d441e3008ec58d8836db649486d7e27d5790a64e6d9e8537a58d2b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22bda3ef3d441e3008ec58d8836db649486d7e27d5790a64e6d9e8537a58d2b4", kill_on_drop: false }`
[INFO] [stdout] 22bda3ef3d441e3008ec58d8836db649486d7e27d5790a64e6d9e8537a58d2b4