[INFO] fetching crate welder 0.3.0...
[INFO] testing welder-0.3.0 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate welder 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate welder 0.3.0 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate welder 0.3.0
[INFO] finished tweaking crates.io crate welder 0.3.0
[INFO] tweaked toml for crates.io crate welder 0.3.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", 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] aa418e5d12e3f88c57c3fa196e1d4d89c6602db947f576e32ca503f59cd2ee2a
[INFO] running `Command { std: "docker" "start" "-a" "aa418e5d12e3f88c57c3fa196e1d4d89c6602db947f576e32ca503f59cd2ee2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa418e5d12e3f88c57c3fa196e1d4d89c6602db947f576e32ca503f59cd2ee2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa418e5d12e3f88c57c3fa196e1d4d89c6602db947f576e32ca503f59cd2ee2a", kill_on_drop: false }`
[INFO] [stdout] aa418e5d12e3f88c57c3fa196e1d4d89c6602db947f576e32ca503f59cd2ee2a
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca31631675495a7a96cb22c14a6db237553b0d819aa87926dc357ee5270df754
[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" "ca31631675495a7a96cb22c14a6db237553b0d819aa87926dc357ee5270df754", kill_on_drop: false }`
[INFO] [stderr]    Compiling welder v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "ca31631675495a7a96cb22c14a6db237553b0d819aa87926dc357ee5270df754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca31631675495a7a96cb22c14a6db237553b0d819aa87926dc357ee5270df754", kill_on_drop: false }`
[INFO] [stdout] ca31631675495a7a96cb22c14a6db237553b0d819aa87926dc357ee5270df754
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6e1f06eab26a57c914ce5478aea951b28f2604411de9b867065cf967ad2ff9e
[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" "f6e1f06eab26a57c914ce5478aea951b28f2604411de9b867065cf967ad2ff9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling welder v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "f6e1f06eab26a57c914ce5478aea951b28f2604411de9b867065cf967ad2ff9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6e1f06eab26a57c914ce5478aea951b28f2604411de9b867065cf967ad2ff9e", kill_on_drop: false }`
[INFO] [stdout] f6e1f06eab26a57c914ce5478aea951b28f2604411de9b867065cf967ad2ff9e
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e8ccaabea8a26e279ffc74282e5d8c4a3eeed286ba22b1b39945ea57b8c14335
[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" "e8ccaabea8a26e279ffc74282e5d8c4a3eeed286ba22b1b39945ea57b8c14335", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/welder-a22a4f686a445737)
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::string_welder_chain ... ok
[INFO] [stdout] test tests::vec_welder_chain ... ok
[INFO] [stderr]    Doc-tests welder
[INFO] [stdout] test tests::string_welder ... ok
[INFO] [stdout] test tests::vec_welder_multiple ... ok
[INFO] [stdout] test tests::string_welder_from_base ... ok
[INFO] [stdout] test tests::string_welder_multiple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs - Welder<G, T>::new (line 45) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::with_start (line 65) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::elem_glue_left (line 256) ... ok
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::elem_glue_right (line 206) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::elem_no_glue (line 107) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::elem (line 160) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::elems (line 184) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::elems_glue_right (line 230) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::elems_glue_both (line 330) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::elems_glue_left (line 280) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::elem_glue_both (line 305) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::elems_no_glue (line 130) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G, T>::weld (line 88) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e8ccaabea8a26e279ffc74282e5d8c4a3eeed286ba22b1b39945ea57b8c14335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8ccaabea8a26e279ffc74282e5d8c4a3eeed286ba22b1b39945ea57b8c14335", kill_on_drop: false }`
[INFO] [stdout] e8ccaabea8a26e279ffc74282e5d8c4a3eeed286ba22b1b39945ea57b8c14335