[INFO] fetching crate sing 0.1.1...
[INFO] testing sing-0.1.1 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate sing 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sing 0.1.1 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sing 0.1.1
[INFO] finished tweaking crates.io crate sing 0.1.1
[INFO] tweaked toml for crates.io crate sing 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate sing 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spinner v0.5.0
[INFO] [stderr]   Downloaded ogg v0.7.0
[INFO] [stderr]   Downloaded slice-deque v0.2.4
[INFO] [stderr]   Downloaded clang-sys v0.28.1
[INFO] [stderr]   Downloaded cpal v0.10.0
[INFO] [stderr]   Downloaded rustc-hash v1.0.1
[INFO] [stderr]   Downloaded claxon v0.4.2
[INFO] [stderr]   Downloaded minimp3-sys v0.3.1
[INFO] [stderr]   Downloaded bindgen v0.51.1
[INFO] [stderr]   Downloaded minimp3 v0.3.3
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.3
[INFO] [stderr]   Downloaded rodio v0.10.0
[INFO] [stderr]   Downloaded cc v1.0.48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff95c389b4b72f0ffa3690c00f236674454b5eed4f5580ad75d79ff6f3ae1f3f
[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" "ff95c389b4b72f0ffa3690c00f236674454b5eed4f5580ad75d79ff6f3ae1f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff95c389b4b72f0ffa3690c00f236674454b5eed4f5580ad75d79ff6f3ae1f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff95c389b4b72f0ffa3690c00f236674454b5eed4f5580ad75d79ff6f3ae1f3f", kill_on_drop: false }`
[INFO] [stdout] ff95c389b4b72f0ffa3690c00f236674454b5eed4f5580ad75d79ff6f3ae1f3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ab7b7692223fcdd4e342dd37ea0d1617d31503e7cf26b2c4a2e7e6089a262be
[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" "8ab7b7692223fcdd4e342dd37ea0d1617d31503e7cf26b2c4a2e7e6089a262be", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling ansi_term v0.7.5
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling slice-deque v0.2.4
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling spinner v0.5.0
[INFO] [stderr]    Compiling ogg v0.7.0
[INFO] [stderr]    Compiling cpal v0.10.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling lewton v0.9.4
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling minimp3 v0.3.3
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling rodio v0.10.0
[INFO] [stderr]    Compiling sing v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.48s
[INFO] running `Command { std: "docker" "inspect" "8ab7b7692223fcdd4e342dd37ea0d1617d31503e7cf26b2c4a2e7e6089a262be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ab7b7692223fcdd4e342dd37ea0d1617d31503e7cf26b2c4a2e7e6089a262be", kill_on_drop: false }`
[INFO] [stdout] 8ab7b7692223fcdd4e342dd37ea0d1617d31503e7cf26b2c4a2e7e6089a262be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] a6941aea4ce831c48b15c3bbf8d7144b349468ab9213aef0fe5efe36239aebd4
[INFO] running `Command { std: "docker" "start" "-a" "a6941aea4ce831c48b15c3bbf8d7144b349468ab9213aef0fe5efe36239aebd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling sing v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "a6941aea4ce831c48b15c3bbf8d7144b349468ab9213aef0fe5efe36239aebd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6941aea4ce831c48b15c3bbf8d7144b349468ab9213aef0fe5efe36239aebd4", kill_on_drop: false }`
[INFO] [stdout] a6941aea4ce831c48b15c3bbf8d7144b349468ab9213aef0fe5efe36239aebd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", 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] 1066aab00b7371184c608034edf9844f11206d6ae5423812e5a415faeef91161
[INFO] running `Command { std: "docker" "start" "-a" "1066aab00b7371184c608034edf9844f11206d6ae5423812e5a415faeef91161", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sing-4528cfcbea15a557)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test note::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sing-0eea8fe50e3947be)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sing
[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] [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" "1066aab00b7371184c608034edf9844f11206d6ae5423812e5a415faeef91161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1066aab00b7371184c608034edf9844f11206d6ae5423812e5a415faeef91161", kill_on_drop: false }`
[INFO] [stdout] 1066aab00b7371184c608034edf9844f11206d6ae5423812e5a415faeef91161