[INFO] fetching crate undo 0.40.0...
[INFO] testing undo-0.40.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate undo 0.40.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate undo 0.40.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate undo 0.40.0
[INFO] finished tweaking crates.io crate undo 0.40.0
[INFO] tweaked toml for crates.io crate undo 0.40.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9680ed570d0c99269bf8b3de460a519de277ffdf98fe5e23923ae3601918d249
[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" "9680ed570d0c99269bf8b3de460a519de277ffdf98fe5e23923ae3601918d249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9680ed570d0c99269bf8b3de460a519de277ffdf98fe5e23923ae3601918d249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9680ed570d0c99269bf8b3de460a519de277ffdf98fe5e23923ae3601918d249", kill_on_drop: false }`
[INFO] [stdout] 9680ed570d0c99269bf8b3de460a519de277ffdf98fe5e23923ae3601918d249
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89033517d2420958d1a67705a7b2fbf2a6b0b15e3a792f9ed5154144c759121d
[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" "89033517d2420958d1a67705a7b2fbf2a6b0b15e3a792f9ed5154144c759121d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling chrono v0.4.13
[INFO] [stderr]    Compiling undo v0.40.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.18s
[INFO] running `Command { std: "docker" "inspect" "89033517d2420958d1a67705a7b2fbf2a6b0b15e3a792f9ed5154144c759121d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89033517d2420958d1a67705a7b2fbf2a6b0b15e3a792f9ed5154144c759121d", kill_on_drop: false }`
[INFO] [stdout] 89033517d2420958d1a67705a7b2fbf2a6b0b15e3a792f9ed5154144c759121d
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebfa79924fb173d95ccd3be119fb5f87fb4d7369deefb8d46b32960ff2669ae6
[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" "ebfa79924fb173d95ccd3be119fb5f87fb4d7369deefb8d46b32960ff2669ae6", kill_on_drop: false }`
[INFO] [stderr]    Compiling undo v0.40.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "ebfa79924fb173d95ccd3be119fb5f87fb4d7369deefb8d46b32960ff2669ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebfa79924fb173d95ccd3be119fb5f87fb4d7369deefb8d46b32960ff2669ae6", kill_on_drop: false }`
[INFO] [stdout] ebfa79924fb173d95ccd3be119fb5f87fb4d7369deefb8d46b32960ff2669ae6
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 48dbb3fdf448c343d337ab3cdabf1b257c8746c42fe0e3a94f7c5a1b68e65eb9
[INFO] running `Command { std: "docker" "start" "-a" "48dbb3fdf448c343d337ab3cdabf1b257c8746c42fe0e3a94f7c5a1b68e65eb9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/undo-0eda5fdefca8f08c
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test checkpoint::tests::cancel ... ok
[INFO] [stdout] test queue::tests::commit ... ok
[INFO] [stdout] test checkpoint::tests::commit ... ok
[INFO] [stdout] test record::tests::go_to ... ok
[INFO] [stderr]    Doc-tests undo
[INFO] [stdout] test checkpoint::tests::saved ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/display.rs - display::Display (line 9) ... ok
[INFO] [stdout] test src/record.rs - record::Builder (line 389) ... ok
[INFO] [stdout] test src/queue.rs - queue::Queue (line 9) ... ok
[INFO] [stdout] test src/record.rs - record::Record (line 14) ... ok
[INFO] [stdout] test src/checkpoint.rs - checkpoint::Checkpoint (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "48dbb3fdf448c343d337ab3cdabf1b257c8746c42fe0e3a94f7c5a1b68e65eb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48dbb3fdf448c343d337ab3cdabf1b257c8746c42fe0e3a94f7c5a1b68e65eb9", kill_on_drop: false }`
[INFO] [stdout] 48dbb3fdf448c343d337ab3cdabf1b257c8746c42fe0e3a94f7c5a1b68e65eb9