[INFO] fetching crate welle 0.1.0... [INFO] testing welle-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2 [INFO] extracting crate welle 0.1.0 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate welle 0.1.0 [INFO] finished tweaking crates.io crate welle 0.1.0 [INFO] tweaked toml for crates.io crate welle 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate welle 0.1.0 on toolchain 562dee4820c458d823175268e41601d4c060588a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 231 packages to latest compatible versions [INFO] [stderr] Adding futures v0.1.31 (available: v0.3.32) [INFO] [stderr] Adding http v0.1.21 (available: v1.4.0) [INFO] [stderr] Adding reqwest v0.9.24 (available: v0.13.2) [INFO] [stderr] Adding structopt v0.2.18 (available: v0.3.26) [INFO] [stderr] Adding tokio v0.1.22 (available: v1.52.1) [INFO] [stderr] Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded http-body v0.1.0 [INFO] [stderr] Downloaded uuid v0.7.4 [INFO] [stderr] Downloaded string v0.2.1 [INFO] [stderr] Downloaded winreg v0.6.2 [INFO] [stderr] Downloaded want v0.2.0 [INFO] [stderr] Downloaded serde_urlencoded v0.5.5 [INFO] [stderr] Downloaded hyper-tls v0.3.2 [INFO] [stderr] Downloaded cookie v0.12.0 [INFO] [stderr] Downloaded h2 v0.1.26 [INFO] [stderr] Downloaded publicsuffix v1.5.6 [INFO] [stderr] Downloaded hyper v0.12.36 [INFO] [stderr] Downloaded cookie_store v0.7.0 [INFO] [stderr] Downloaded tokio-buf v0.1.1 [INFO] [stderr] Downloaded reqwest v0.9.24 [INFO] [stderr] Downloaded try_from v0.3.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a14ab00c48a095fb3b9cd84d350df4195b150cbc64a05daa005e897e37aa4f72 [INFO] running `Command { std: "docker" "start" "-a" "a14ab00c48a095fb3b9cd84d350df4195b150cbc64a05daa005e897e37aa4f72", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a14ab00c48a095fb3b9cd84d350df4195b150cbc64a05daa005e897e37aa4f72", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a14ab00c48a095fb3b9cd84d350df4195b150cbc64a05daa005e897e37aa4f72", kill_on_drop: false }` [INFO] [stdout] a14ab00c48a095fb3b9cd84d350df4195b150cbc64a05daa005e897e37aa4f72 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] df4c574203f242d54dcbd71d3f3e557093a3fb0acc9d26d4f1d8cde449b97ede [INFO] running `Command { std: "docker" "start" "-a" "df4c574203f242d54dcbd71d3f3e557093a3fb0acc9d26d4f1d8cde449b97ede", kill_on_drop: false }` [INFO] [stderr] Compiling futures v0.1.31 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling num_cpus v1.17.0 [INFO] [stderr] Compiling net2 v0.2.39 [INFO] [stderr] Compiling lock_api v0.3.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling unicode-bidi v0.3.18 [INFO] [stderr] Compiling matches v0.1.10 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling http v0.1.21 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling smallvec v0.6.14 [INFO] [stderr] Compiling string v0.2.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling object v0.37.3 [INFO] [stderr] Compiling mime_guess v2.0.5 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling idna v0.1.5 [INFO] [stderr] Compiling idna v0.2.3 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling parking_lot_core v0.6.3 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling crossbeam-queue v0.2.3 [INFO] [stderr] Compiling mio-uds v0.6.8 [INFO] [stderr] Compiling hyper v0.12.36 [INFO] [stderr] Compiling crossbeam-deque v0.7.4 [INFO] [stderr] Compiling try_from v0.3.2 [INFO] [stderr] Compiling url v1.7.2 [INFO] [stderr] Compiling flate2 v1.1.9 [INFO] [stderr] Compiling base64 v0.10.1 [INFO] [stderr] Compiling publicsuffix v1.5.6 [INFO] [stderr] Compiling uuid v0.7.4 [INFO] [stderr] Compiling cookie v0.12.0 [INFO] [stderr] Compiling serde_urlencoded v0.5.5 [INFO] [stderr] Compiling tokio-executor v0.1.10 [INFO] [stderr] Compiling tokio-io v0.1.13 [INFO] [stderr] Compiling tokio-sync v0.1.8 [INFO] [stderr] Compiling tokio-buf v0.1.1 [INFO] [stderr] Compiling want v0.2.0 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling tokio-threadpool v0.1.18 [INFO] [stderr] Compiling tokio-timer v0.2.13 [INFO] [stderr] Compiling tokio-current-thread v0.1.7 [INFO] [stderr] Compiling tokio-codec v0.1.2 [INFO] [stderr] Compiling h2 v0.1.26 [INFO] [stderr] Compiling http-body v0.1.0 [INFO] [stderr] Compiling tokio-fs v0.1.7 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling tokio-reactor v0.1.12 [INFO] [stderr] Compiling tokio-uds v0.2.7 [INFO] [stderr] Compiling tokio-tcp v0.1.4 [INFO] [stderr] Compiling tokio-udp v0.1.6 [INFO] [stderr] Compiling tokio v0.1.22 [INFO] [stderr] Compiling backtrace v0.3.76 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling cookie_store v0.7.0 [INFO] [stderr] Compiling hyper-tls v0.3.2 [INFO] [stderr] Compiling reqwest v0.9.24 [INFO] [stderr] Compiling welle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:204:9 [INFO] [stdout] | [INFO] [stdout] 204 | writeln!(f, ""); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 204 | let _ = writeln!(f, ""); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:213:9 [INFO] [stdout] | [INFO] [stdout] 213 | writeln!(f, ""); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 213 | let _ = writeln!(f, ""); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:214:9 [INFO] [stdout] | [INFO] [stdout] 214 | / writeln!( [INFO] [stdout] 215 | | f, [INFO] [stdout] 216 | | "Percentage of the requests served within a certain time:" [INFO] [stdout] 217 | | ); [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 214 | let _ = writeln!( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.49s [INFO] running `Command { std: "docker" "inspect" "df4c574203f242d54dcbd71d3f3e557093a3fb0acc9d26d4f1d8cde449b97ede", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "df4c574203f242d54dcbd71d3f3e557093a3fb0acc9d26d4f1d8cde449b97ede", kill_on_drop: false }` [INFO] [stdout] df4c574203f242d54dcbd71d3f3e557093a3fb0acc9d26d4f1d8cde449b97ede [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 72a3931a62ba8634945ffdce6191e801a820a770c16a0664127fd9246099e7ae [INFO] running `Command { std: "docker" "start" "-a" "72a3931a62ba8634945ffdce6191e801a820a770c16a0664127fd9246099e7ae", kill_on_drop: false }` [INFO] [stderr] Compiling welle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:204:9 [INFO] [stdout] | [INFO] [stdout] 204 | writeln!(f, ""); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 204 | let _ = writeln!(f, ""); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:213:9 [INFO] [stdout] | [INFO] [stdout] 213 | writeln!(f, ""); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 213 | let _ = writeln!(f, ""); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:214:9 [INFO] [stdout] | [INFO] [stdout] 214 | / writeln!( [INFO] [stdout] 215 | | f, [INFO] [stdout] 216 | | "Percentage of the requests served within a certain time:" [INFO] [stdout] 217 | | ); [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 214 | let _ = writeln!( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s [INFO] running `Command { std: "docker" "inspect" "72a3931a62ba8634945ffdce6191e801a820a770c16a0664127fd9246099e7ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72a3931a62ba8634945ffdce6191e801a820a770c16a0664127fd9246099e7ae", kill_on_drop: false }` [INFO] [stdout] 72a3931a62ba8634945ffdce6191e801a820a770c16a0664127fd9246099e7ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 098b6f9a3f8c3ba31003fbd2d0042df741b0a46ce64b8ae340e36e422c3d9fb5 [INFO] running `Command { std: "docker" "start" "-a" "098b6f9a3f8c3ba31003fbd2d0042df741b0a46ce64b8ae340e36e422c3d9fb5", kill_on_drop: false }` [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:204:9 [INFO] [stderr] | [INFO] [stderr] 204 | writeln!(f, ""); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 204 | let _ = writeln!(f, ""); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:213:9 [INFO] [stderr] | [INFO] [stderr] 213 | writeln!(f, ""); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 213 | let _ = writeln!(f, ""); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:214:9 [INFO] [stderr] | [INFO] [stderr] 214 | / writeln!( [INFO] [stderr] 215 | | f, [INFO] [stderr] 216 | | "Percentage of the requests served within a certain time:" [INFO] [stderr] 217 | | ); [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 214 | let _ = writeln!( [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `welle` (bin "welle" test) generated 3 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/welle-89f984e95d9c6a8e) [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" "098b6f9a3f8c3ba31003fbd2d0042df741b0a46ce64b8ae340e36e422c3d9fb5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "098b6f9a3f8c3ba31003fbd2d0042df741b0a46ce64b8ae340e36e422c3d9fb5", kill_on_drop: false }` [INFO] [stdout] 098b6f9a3f8c3ba31003fbd2d0042df741b0a46ce64b8ae340e36e422c3d9fb5