[INFO] fetching crate welle 0.1.0... [INFO] testing welle-0.1.0 against master#159ba8a92c9e2fa4121f106176309521f4af87e9+rustflags=-Copt-level=3 for pr-107051 [INFO] extracting crate welle 0.1.0 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate welle 0.1.0 on toolchain 159ba8a92c9e2fa4121f106176309521f4af87e9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-6-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 24bcee5d7a3177299f3901f6d255ba8589de4d57385930f67d06d88eea030a5f [INFO] running `Command { std: "docker" "start" "-a" "24bcee5d7a3177299f3901f6d255ba8589de4d57385930f67d06d88eea030a5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "24bcee5d7a3177299f3901f6d255ba8589de4d57385930f67d06d88eea030a5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "24bcee5d7a3177299f3901f6d255ba8589de4d57385930f67d06d88eea030a5f", kill_on_drop: false }` [INFO] [stdout] 24bcee5d7a3177299f3901f6d255ba8589de4d57385930f67d06d88eea030a5f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 32d60e025c5e48571ab49a820fff6289993431b74cdfbb191b19cc909aa9aed3 [INFO] running `Command { std: "docker" "start" "-a" "32d60e025c5e48571ab49a820fff6289993431b74cdfbb191b19cc909aa9aed3", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling futures v0.1.31 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling either v1.8.0 [INFO] [stderr] Compiling slab v0.4.7 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling lock_api v0.3.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling pkg-config v0.3.26 [INFO] [stderr] Compiling net2 v0.2.38 [INFO] [stderr] Compiling matches v0.1.9 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling indexmap v1.9.2 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling miniz_oxide v0.6.2 [INFO] [stderr] Compiling idna v0.1.5 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling http v0.1.21 [INFO] [stderr] Compiling time v0.1.45 [INFO] [stderr] Compiling backtrace v0.3.67 [INFO] [stderr] Compiling smallvec v0.6.14 [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 unicode-xid v0.2.4 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Compiling openssl v0.10.45 [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 crossbeam-deque v0.7.4 [INFO] [stderr] Compiling tokio-codec v0.1.2 [INFO] [stderr] Compiling foreign-types-shared v0.1.1 [INFO] [stderr] Compiling tokio-threadpool v0.1.18 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling httparse v1.8.0 [INFO] [stderr] Compiling gimli v0.27.0 [INFO] [stderr] Compiling tokio-reactor v0.1.12 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling foreign-types v0.3.2 [INFO] [stderr] Compiling tokio-timer v0.2.13 [INFO] [stderr] Compiling tokio-current-thread v0.1.7 [INFO] [stderr] Compiling tokio-udp v0.1.6 [INFO] [stderr] Compiling tokio-tcp v0.1.4 [INFO] [stderr] Compiling tokio-uds v0.2.7 [INFO] [stderr] Compiling openssl-sys v0.9.80 [INFO] [stderr] Compiling tokio-fs v0.1.7 [INFO] [stderr] Compiling tokio-buf v0.1.1 [INFO] [stderr] Compiling url v1.7.2 [INFO] [stderr] Compiling object v0.30.2 [INFO] [stderr] Compiling hyper v0.12.36 [INFO] [stderr] Compiling string v0.2.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Compiling serde_json v1.0.91 [INFO] [stderr] Compiling native-tls v0.2.11 [INFO] [stderr] Compiling try-lock v0.2.4 [INFO] [stderr] Compiling want v0.2.0 [INFO] [stderr] Compiling mime_guess v2.0.4 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling h2 v0.1.26 [INFO] [stderr] Compiling tokio v0.1.22 [INFO] [stderr] Compiling http-body v0.1.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling addr2line v0.19.0 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling idna v0.2.3 [INFO] [stderr] Compiling openssl-probe v0.1.5 [INFO] [stderr] Compiling itoa v1.0.5 [INFO] [stderr] Compiling unicode-segmentation v1.10.0 [INFO] [stderr] Compiling encoding_rs v0.8.31 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling publicsuffix v1.5.6 [INFO] [stderr] Compiling cookie v0.12.0 [INFO] [stderr] Compiling try_from v0.3.2 [INFO] [stderr] Compiling dtoa v0.4.8 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling mime v0.3.16 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling flate2 v1.0.25 [INFO] [stderr] Compiling uuid v0.7.4 [INFO] [stderr] Compiling base64 v0.10.1 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Compiling serde_derive v1.0.152 [INFO] [stderr] Compiling openssl-macros v0.1.0 [INFO] [stderr] Compiling structopt v0.2.18 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling hyper-tls v0.3.2 [INFO] [stderr] Compiling serde v1.0.152 [INFO] [stderr] Compiling serde_urlencoded v0.5.5 [INFO] [stderr] Compiling cookie_store v0.7.0 [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)]` on by default [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [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] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [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] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3m 43s [INFO] running `Command { std: "docker" "inspect" "32d60e025c5e48571ab49a820fff6289993431b74cdfbb191b19cc909aa9aed3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "32d60e025c5e48571ab49a820fff6289993431b74cdfbb191b19cc909aa9aed3", kill_on_drop: false }` [INFO] [stdout] 32d60e025c5e48571ab49a820fff6289993431b74cdfbb191b19cc909aa9aed3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ec1482d8ceee4d931f47aaf9ee0250a6c90f9e62532527cf2db8a844425517d3 [INFO] running `Command { std: "docker" "start" "-a" "ec1482d8ceee4d931f47aaf9ee0250a6c90f9e62532527cf2db8a844425517d3", 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)]` on by default [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [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] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [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] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.06s [INFO] running `Command { std: "docker" "inspect" "ec1482d8ceee4d931f47aaf9ee0250a6c90f9e62532527cf2db8a844425517d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec1482d8ceee4d931f47aaf9ee0250a6c90f9e62532527cf2db8a844425517d3", kill_on_drop: false }` [INFO] [stdout] ec1482d8ceee4d931f47aaf9ee0250a6c90f9e62532527cf2db8a844425517d3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 4143c8c33f345fd5c8245b1bd123887ccaea3e1e42ffa322d7480c3c0ebff198 [INFO] running `Command { std: "docker" "start" "-a" "4143c8c33f345fd5c8245b1bd123887ccaea3e1e42ffa322d7480c3c0ebff198", 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)]` on by default [INFO] [stderr] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [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] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [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] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: `welle` (bin "welle" test) generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.16s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/welle-ca047758e6b1a75a) [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" "4143c8c33f345fd5c8245b1bd123887ccaea3e1e42ffa322d7480c3c0ebff198", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4143c8c33f345fd5c8245b1bd123887ccaea3e1e42ffa322d7480c3c0ebff198", kill_on_drop: false }` [INFO] [stdout] 4143c8c33f345fd5c8245b1bd123887ccaea3e1e42ffa322d7480c3c0ebff198