[INFO] fetching crate skill-tree 3.1.0...
[INFO] testing skill-tree-3.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate skill-tree 3.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate skill-tree 3.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate skill-tree 3.1.0
[INFO] finished tweaking crates.io crate skill-tree 3.1.0
[INFO] tweaked toml for crates.io crate skill-tree 3.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate skill-tree 3.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-error v0.4.9
[INFO] [stderr]   Downloaded serde_derive v1.0.92
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.9
[INFO] [stderr]   Downloaded prettydiff v0.4.0
[INFO] [stderr]   Downloaded syn v0.15.36
[INFO] [stderr]   Downloaded toml v0.5.1
[INFO] [stderr]   Downloaded fehler v1.0.0-alpha.2
[INFO] [stderr]   Downloaded fehler-macros v1.0.0-alpha.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0ed4c4e6fc990c78d8fee837c219fe7f8dab470dc8fd2e7574dc8531122f8dd
[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" "d0ed4c4e6fc990c78d8fee837c219fe7f8dab470dc8fd2e7574dc8531122f8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0ed4c4e6fc990c78d8fee837c219fe7f8dab470dc8fd2e7574dc8531122f8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0ed4c4e6fc990c78d8fee837c219fe7f8dab470dc8fd2e7574dc8531122f8dd", kill_on_drop: false }`
[INFO] [stdout] d0ed4c4e6fc990c78d8fee837c219fe7f8dab470dc8fd2e7574dc8531122f8dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13d755fbebe7da9b3dc4aaa40979eccc44bbf34e56ab956f7897b703ac6ce418
[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" "13d755fbebe7da9b3dc4aaa40979eccc44bbf34e56ab956f7897b703ac6ce418", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling svg v0.5.12
[INFO] [stderr]    Compiling htmlescape v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling toml v0.5.1
[INFO] [stderr]    Compiling fehler-macros v1.0.0-alpha.2
[INFO] [stderr]    Compiling proc-macro-error v0.4.9
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.9
[INFO] [stderr]    Compiling fehler v1.0.0-alpha.2
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]    Compiling structopt v0.3.11
[INFO] [stderr]    Compiling skill-tree v3.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "13d755fbebe7da9b3dc4aaa40979eccc44bbf34e56ab956f7897b703ac6ce418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13d755fbebe7da9b3dc4aaa40979eccc44bbf34e56ab956f7897b703ac6ce418", kill_on_drop: false }`
[INFO] [stdout] 13d755fbebe7da9b3dc4aaa40979eccc44bbf34e56ab956f7897b703ac6ce418
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5603df031279d13ae82dbebc9d6e44e1b9439e73b3c4cf402403d5c721c1f332
[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" "5603df031279d13ae82dbebc9d6e44e1b9439e73b3c4cf402403d5c721c1f332", kill_on_drop: false }`
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling bstr v0.2.15
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling prettydiff v0.4.0
[INFO] [stderr]    Compiling skill-tree v3.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 23.06s
[INFO] running `Command { std: "docker" "inspect" "5603df031279d13ae82dbebc9d6e44e1b9439e73b3c4cf402403d5c721c1f332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5603df031279d13ae82dbebc9d6e44e1b9439e73b3c4cf402403d5c721c1f332", kill_on_drop: false }`
[INFO] [stdout] 5603df031279d13ae82dbebc9d6e44e1b9439e73b3c4cf402403d5c721c1f332
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8de6fdd5019248b225ad28b7bb7f29f1e82d81d5b5a00a19e3846fbcbb745c35
[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" "8de6fdd5019248b225ad28b7bb7f29f1e82d81d5b5a00a19e3846fbcbb745c35", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/skill_tree-63b965b33bc51095)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::avd_snippet ... ok
[INFO] [stdout] test test::invalid_requires - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/skill_tree-2150b5e1b7b419a2)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests skill-tree
[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] [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" "8de6fdd5019248b225ad28b7bb7f29f1e82d81d5b5a00a19e3846fbcbb745c35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8de6fdd5019248b225ad28b7bb7f29f1e82d81d5b5a00a19e3846fbcbb745c35", kill_on_drop: false }`
[INFO] [stdout] 8de6fdd5019248b225ad28b7bb7f29f1e82d81d5b5a00a19e3846fbcbb745c35