[INFO] cloning repository https://github.com/KoharaKazuya/forest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KoharaKazuya/forest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKoharaKazuya%2Fforest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKoharaKazuya%2Fforest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f2ae009c6092d49bed24efcf1a261fdd4e8a7fe
[INFO] testing KoharaKazuya/forest against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKoharaKazuya%2Fforest" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KoharaKazuya/forest 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 git repo https://github.com/KoharaKazuya/forest
[INFO] finished tweaking git repo https://github.com/KoharaKazuya/forest
[INFO] tweaked toml for git repo https://github.com/KoharaKazuya/forest written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/KoharaKazuya/forest already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae6eb31bbe4a6a7841e1cccdfe5d451f6981a5f439b04543808391623e3db4db
[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" "ae6eb31bbe4a6a7841e1cccdfe5d451f6981a5f439b04543808391623e3db4db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae6eb31bbe4a6a7841e1cccdfe5d451f6981a5f439b04543808391623e3db4db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae6eb31bbe4a6a7841e1cccdfe5d451f6981a5f439b04543808391623e3db4db", kill_on_drop: false }`
[INFO] [stdout] ae6eb31bbe4a6a7841e1cccdfe5d451f6981a5f439b04543808391623e3db4db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e53e51208fec649544822e20c8eec71cdd9d3eb9c71260c69d1d16712167aa8
[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" "3e53e51208fec649544822e20c8eec71cdd9d3eb9c71260c69d1d16712167aa8", kill_on_drop: false }`
[INFO] [stderr]    Compiling forest v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/tree_formatter.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 |   writer: &'a mut Write,
[INFO] [stdout]   |                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/tree_formatter.rs:13:30
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn new(writer: &'a mut Write, ago: &str, agc: &str, ngo: &str, ngc: &str) -> Formatter<'a> {
[INFO] [stdout]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/tree_formatter.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 | /         write!(self.writer, "{}", match *shape {
[INFO] [stdout] 29 | |           Shape::Open => &self.ancestor_guide_open,
[INFO] [stdout] 30 | |           Shape::Close => &self.ancestor_guide_close,
[INFO] [stdout] 31 | |           _ => panic!("Unexpected Internal Value\nPerhaps, internal logic error...\nformatter can treat with only Open/Close Shape"),
[INFO] [stdout] 32 | |         });
[INFO] [stdout]    | |___________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/tree_formatter.rs:39:7
[INFO] [stdout]    |
[INFO] [stdout] 39 |       write!(self.writer, "{}{}\n", ng, entry.name);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "3e53e51208fec649544822e20c8eec71cdd9d3eb9c71260c69d1d16712167aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e53e51208fec649544822e20c8eec71cdd9d3eb9c71260c69d1d16712167aa8", kill_on_drop: false }`
[INFO] [stdout] 3e53e51208fec649544822e20c8eec71cdd9d3eb9c71260c69d1d16712167aa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] b15759d77288ec233bd0466d16cdfd80a1052b22ca5ad87929f6b6567a0168ba
[INFO] running `Command { std: "docker" "start" "-a" "b15759d77288ec233bd0466d16cdfd80a1052b22ca5ad87929f6b6567a0168ba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling forest v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/tree_formatter.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 |   writer: &'a mut Write,
[INFO] [stdout]   |                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/tree_formatter.rs:13:30
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn new(writer: &'a mut Write, ago: &str, agc: &str, ngo: &str, ngc: &str) -> Formatter<'a> {
[INFO] [stdout]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/tree_formatter.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 | /         write!(self.writer, "{}", match *shape {
[INFO] [stdout] 29 | |           Shape::Open => &self.ancestor_guide_open,
[INFO] [stdout] 30 | |           Shape::Close => &self.ancestor_guide_close,
[INFO] [stdout] 31 | |           _ => panic!("Unexpected Internal Value\nPerhaps, internal logic error...\nformatter can treat with only Open/Close Shape"),
[INFO] [stdout] 32 | |         });
[INFO] [stdout]    | |___________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/tree_formatter.rs:39:7
[INFO] [stdout]    |
[INFO] [stdout] 39 |       write!(self.writer, "{}{}\n", ng, entry.name);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "b15759d77288ec233bd0466d16cdfd80a1052b22ca5ad87929f6b6567a0168ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b15759d77288ec233bd0466d16cdfd80a1052b22ca5ad87929f6b6567a0168ba", kill_on_drop: false }`
[INFO] [stdout] b15759d77288ec233bd0466d16cdfd80a1052b22ca5ad87929f6b6567a0168ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fbd43fff852eaf0c0645ad714c333fbb853e86a245b55768f8f865104e39375d
[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" "fbd43fff852eaf0c0645ad714c333fbb853e86a245b55768f8f865104e39375d", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/tree_formatter.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 |   writer: &'a mut Write,
[INFO] [stderr]   |                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tree_formatter.rs:13:30
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn new(writer: &'a mut Write, ago: &str, agc: &str, ngo: &str, ngc: &str) -> Formatter<'a> {
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tree_formatter.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         write!(self.writer, "{}", match *shape {
[INFO] [stderr] 29 | |           Shape::Open => &self.ancestor_guide_open,
[INFO] [stderr] 30 | |           Shape::Close => &self.ancestor_guide_close,
[INFO] [stderr] 31 | |           _ => panic!("Unexpected Internal Value\nPerhaps, internal logic error...\nformatter can treat with only Open/Close Shape"),
[INFO] [stderr] 32 | |         });
[INFO] [stderr]    | |___________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tree_formatter.rs:39:7
[INFO] [stderr]    |
[INFO] [stderr] 39 |       write!(self.writer, "{}{}\n", ng, entry.name);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/forest-c31c564f375ca13a
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tree_buider::test::test_build_one_entry ... ok
[INFO] [stdout] test tree_buider::test::test_build_simple_parent ... ok
[INFO] [stdout] test tree_buider::test::test_build_simple_sibling ... ok
[INFO] [stdout] test tree_buider::test::test_build_empty_tree ... ok
[INFO] [stdout] test tree_buider::test::test_build_ancle ... ok
[INFO] [stdout] test tree_formatter::tests::test_print_simple_sibling ... ok
[INFO] [stdout] test tree_buider::test::test_build_with_space_separator ... ok
[INFO] [stdout] test tree_formatter::tests::test_print_one_entry ... ok
[INFO] [stdout] test tree_formatter::tests::test_print_simple_parent ... ok
[INFO] [stdout] test tree_formatter::tests::test_print_ancle ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fbd43fff852eaf0c0645ad714c333fbb853e86a245b55768f8f865104e39375d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd43fff852eaf0c0645ad714c333fbb853e86a245b55768f8f865104e39375d", kill_on_drop: false }`
[INFO] [stdout] fbd43fff852eaf0c0645ad714c333fbb853e86a245b55768f8f865104e39375d