[INFO] cloning repository https://github.com/ipost/flow_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ipost/flow_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fipost%2Fflow_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fipost%2Fflow_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85497e4e5cad7eeaf2544460152eddb9478f60ef
[INFO] checking ipost/flow_rs against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fipost%2Fflow_rs" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ipost/flow_rs on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ipost/flow_rs
[INFO] finished tweaking git repo https://github.com/ipost/flow_rs
[INFO] tweaked toml for git repo https://github.com/ipost/flow_rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ipost/flow_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44ce621d991e204bda26267c46a1094dbbf0e7be6ec550e102d0529425ca9a88
[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" "44ce621d991e204bda26267c46a1094dbbf0e7be6ec550e102d0529425ca9a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44ce621d991e204bda26267c46a1094dbbf0e7be6ec550e102d0529425ca9a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44ce621d991e204bda26267c46a1094dbbf0e7be6ec550e102d0529425ca9a88", kill_on_drop: false }`
[INFO] [stdout] 44ce621d991e204bda26267c46a1094dbbf0e7be6ec550e102d0529425ca9a88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d36a525234a2d7b6afd2c7d823931f5857a80c822c09d65a71f97f636e791604
[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" "d36a525234a2d7b6afd2c7d823931f5857a80c822c09d65a71f97f636e791604", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling regex v1.1.5
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling pest v2.1.0
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling pest_meta v2.1.0
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking predicates v1.0.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking flowrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:87:66
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn dotify_all(mut pairs: Pairs<Rule>, mut id_generator: &mut Box<FnMut() -> String>) -> String {
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[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/main.rs:102:28
[INFO] [stdout]     |
[INFO] [stdout] 102 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:127:28
[INFO] [stdout]     |
[INFO] [stdout] 127 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:168:28
[INFO] [stdout]     |
[INFO] [stdout] 168 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:209:28
[INFO] [stdout]     |
[INFO] [stdout] 209 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:237:28
[INFO] [stdout]     |
[INFO] [stdout] 237 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:256:31
[INFO] [stdout]     |
[INFO] [stdout] 256 | fn make_id_generator() -> Box<FnMut() -> String> {
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:288:57
[INFO] [stdout]     |
[INFO] [stdout] 288 | fn get_output_handle(file_path: Option<PathBuf>) -> Box<Write> {
[INFO] [stdout]     |                                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:87:66
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn dotify_all(mut pairs: Pairs<Rule>, mut id_generator: &mut Box<FnMut() -> String>) -> String {
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[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/main.rs:102:28
[INFO] [stdout]     |
[INFO] [stdout] 102 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:127:28
[INFO] [stdout]     |
[INFO] [stdout] 127 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:168:28
[INFO] [stdout]     |
[INFO] [stdout] 168 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:209:28
[INFO] [stdout]     |
[INFO] [stdout] 209 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:237:28
[INFO] [stdout]     |
[INFO] [stdout] 237 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:256:31
[INFO] [stdout]     |
[INFO] [stdout] 256 | fn make_id_generator() -> Box<FnMut() -> String> {
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:288:57
[INFO] [stdout]     |
[INFO] [stdout] 288 | fn get_output_handle(file_path: Option<PathBuf>) -> Box<Write> {
[INFO] [stdout]     |                                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.43s
[INFO] running `Command { std: "docker" "inspect" "d36a525234a2d7b6afd2c7d823931f5857a80c822c09d65a71f97f636e791604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d36a525234a2d7b6afd2c7d823931f5857a80c822c09d65a71f97f636e791604", kill_on_drop: false }`
[INFO] [stdout] d36a525234a2d7b6afd2c7d823931f5857a80c822c09d65a71f97f636e791604