[INFO] cloning repository https://github.com/fcsonline/trawler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fcsonline/trawler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffcsonline%2Ftrawler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffcsonline%2Ftrawler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4360162f2d7a64e0b931dc238e6d00ec359e1ae3
[INFO] testing fcsonline/trawler against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffcsonline%2Ftrawler" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fcsonline/trawler 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 git repo https://github.com/fcsonline/trawler
[INFO] finished tweaking git repo https://github.com/fcsonline/trawler
[INFO] tweaked toml for git repo https://github.com/fcsonline/trawler written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/fcsonline/trawler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v0.6.7
[INFO] [stderr]   Downloaded redox_syscall v0.1.44
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.3
[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" "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] 22be16792c12f81113da7eb10b62238283ce4ddce5d6c81af0a3ae6a9be5d457
[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" "22be16792c12f81113da7eb10b62238283ce4ddce5d6c81af0a3ae6a9be5d457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22be16792c12f81113da7eb10b62238283ce4ddce5d6c81af0a3ae6a9be5d457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22be16792c12f81113da7eb10b62238283ce4ddce5d6c81af0a3ae6a9be5d457", kill_on_drop: false }`
[INFO] [stdout] 22be16792c12f81113da7eb10b62238283ce4ddce5d6c81af0a3ae6a9be5d457
[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" "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] f4daab97a361d7904c0e1baf18bbec27d33d6c04a529dac1e4784f06cded9f49
[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" "f4daab97a361d7904c0e1baf18bbec27d33d6c04a529dac1e4784f06cded9f49", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling futures v0.1.25
[INFO] [stderr]    Compiling slab v0.4.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.3
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling smallvec v0.6.7
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.9.0
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling filetime v0.2.4
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling tokio-executor v0.1.5
[INFO] [stderr]    Compiling tokio-io v0.1.10
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling tokio-reactor v0.1.7
[INFO] [stderr]    Compiling inotify v0.6.1
[INFO] [stderr]    Compiling notify v4.0.6
[INFO] [stderr]    Compiling trawler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib/catalog.rs:8:36
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub steps: HashMap<String, Box<Step>>
[INFO] [stdout]   |                                    ^^^^ help: use `dyn`: `dyn Step`
[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/lib/catalog.rs:13:44
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut steps: HashMap<String, Box<Step>> = HashMap::new();
[INFO] [stdout]    |                                            ^^^^ help: use `dyn`: `dyn Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/lib/step.rs:4:59
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)>;
[INFO] [stdout]   |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/steps/write.rs:18:59
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stdout]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/steps/hash.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stdout]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/steps/echo.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stdout]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/steps/reverse.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stdout]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.84s
[INFO] running `Command { std: "docker" "inspect" "f4daab97a361d7904c0e1baf18bbec27d33d6c04a529dac1e4784f06cded9f49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4daab97a361d7904c0e1baf18bbec27d33d6c04a529dac1e4784f06cded9f49", kill_on_drop: false }`
[INFO] [stdout] f4daab97a361d7904c0e1baf18bbec27d33d6c04a529dac1e4784f06cded9f49
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b6d936429cd6bced5e4916717e8506e31c99c4be879cfaea5e32c050a703b4c2
[INFO] running `Command { std: "docker" "start" "-a" "b6d936429cd6bced5e4916717e8506e31c99c4be879cfaea5e32c050a703b4c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling trawler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib/catalog.rs:8:36
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub steps: HashMap<String, Box<Step>>
[INFO] [stdout]   |                                    ^^^^ help: use `dyn`: `dyn Step`
[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/lib/catalog.rs:13:44
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut steps: HashMap<String, Box<Step>> = HashMap::new();
[INFO] [stdout]    |                                            ^^^^ help: use `dyn`: `dyn Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/lib/step.rs:4:59
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)>;
[INFO] [stdout]   |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/steps/write.rs:18:59
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stdout]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/steps/hash.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stdout]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/steps/echo.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stdout]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/steps/reverse.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stdout]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "b6d936429cd6bced5e4916717e8506e31c99c4be879cfaea5e32c050a703b4c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6d936429cd6bced5e4916717e8506e31c99c4be879cfaea5e32c050a703b4c2", kill_on_drop: false }`
[INFO] [stdout] b6d936429cd6bced5e4916717e8506e31c99c4be879cfaea5e32c050a703b4c2
[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" "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] [stdout] 7c6f70f5adc827d6c647bb877036633537eeed23b6675a69a30d00069c2ec039
[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" "7c6f70f5adc827d6c647bb877036633537eeed23b6675a69a30d00069c2ec039", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib/catalog.rs:8:36
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub steps: HashMap<String, Box<Step>>
[INFO] [stderr]   |                                    ^^^^ help: use `dyn`: `dyn Step`
[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/lib/catalog.rs:13:44
[INFO] [stderr]    |
[INFO] [stderr] 13 |         let mut steps: HashMap<String, Box<Step>> = HashMap::new();
[INFO] [stderr]    |                                            ^^^^ help: use `dyn`: `dyn Step`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/lib/step.rs:4:59
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)>;
[INFO] [stderr]   |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/steps/write.rs:18:59
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stderr]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/steps/hash.rs:16:59
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stderr]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/steps/echo.rs:16:59
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stderr]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/steps/reverse.rs:16:59
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn execute(&self, buffer: &Buffer) -> std::io::Result<(Buffer)> {
[INFO] [stderr]    |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/trawler-d1bf5a9dd8a2a258
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7c6f70f5adc827d6c647bb877036633537eeed23b6675a69a30d00069c2ec039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c6f70f5adc827d6c647bb877036633537eeed23b6675a69a30d00069c2ec039", kill_on_drop: false }`
[INFO] [stdout] 7c6f70f5adc827d6c647bb877036633537eeed23b6675a69a30d00069c2ec039