[INFO] fetching crate singleton-trait 0.3.0...
[INFO] testing singleton-trait-0.3.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate singleton-trait 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate singleton-trait 0.3.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate singleton-trait 0.3.0
[INFO] finished tweaking crates.io crate singleton-trait 0.3.0
[INFO] tweaked toml for crates.io crate singleton-trait 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate singleton-trait 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0530693982ea52561efbcc6fe3ec69adcd5e94c9b7de981c674df47c4a4913ce
[INFO] running `Command { std: "docker" "start" "-a" "0530693982ea52561efbcc6fe3ec69adcd5e94c9b7de981c674df47c4a4913ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0530693982ea52561efbcc6fe3ec69adcd5e94c9b7de981c674df47c4a4913ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0530693982ea52561efbcc6fe3ec69adcd5e94c9b7de981c674df47c4a4913ce", kill_on_drop: false }`
[INFO] [stdout] 0530693982ea52561efbcc6fe3ec69adcd5e94c9b7de981c674df47c4a4913ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 015ff972243ca93c031a7e9dedf037967ee6e487dbdd5c90557b091859d100e9
[INFO] running `Command { std: "docker" "start" "-a" "015ff972243ca93c031a7e9dedf037967ee6e487dbdd5c90557b091859d100e9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling singleton-trait v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "015ff972243ca93c031a7e9dedf037967ee6e487dbdd5c90557b091859d100e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "015ff972243ca93c031a7e9dedf037967ee6e487dbdd5c90557b091859d100e9", kill_on_drop: false }`
[INFO] [stdout] 015ff972243ca93c031a7e9dedf037967ee6e487dbdd5c90557b091859d100e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a6a253ba0897a3430af2e315a23e0fd6d535bc11321250c2e6908c3b6441476
[INFO] running `Command { std: "docker" "start" "-a" "7a6a253ba0897a3430af2e315a23e0fd6d535bc11321250c2e6908c3b6441476", kill_on_drop: false }`
[INFO] [stderr]    Compiling singleton-trait v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `Command { std: "docker" "inspect" "7a6a253ba0897a3430af2e315a23e0fd6d535bc11321250c2e6908c3b6441476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a6a253ba0897a3430af2e315a23e0fd6d535bc11321250c2e6908c3b6441476", kill_on_drop: false }`
[INFO] [stdout] 7a6a253ba0897a3430af2e315a23e0fd6d535bc11321250c2e6908c3b6441476
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d4e5b84b4c39efab2eb94103dc0d2bb75c9f35519cf87207716bb70b0d5fa45
[INFO] running `Command { std: "docker" "start" "-a" "4d4e5b84b4c39efab2eb94103dc0d2bb75c9f35519cf87207716bb70b0d5fa45", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/singleton_trait-412d9591be68352f)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests singleton-trait
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_impls ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Erased<&'amutT>::read (line 288) ... ok
[INFO] [stdout] test src/lib.rs - Erased<&'amutT>::into_shared (line 315) ... ok
[INFO] [stdout] test src/lib.rs - Erased<&'amutT>::reborrow (line 262) ... ok
[INFO] [stdout] test src/lib.rs - Erased<&'amutT>::reborrow (line 272) ... ok
[INFO] [stdout] test src/lib.rs - Erased<T>::borrow (line 123) ... ok
[INFO] [stdout] test src/lib.rs - Erased<T>::borrow_mut (line 146) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4d4e5b84b4c39efab2eb94103dc0d2bb75c9f35519cf87207716bb70b0d5fa45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d4e5b84b4c39efab2eb94103dc0d2bb75c9f35519cf87207716bb70b0d5fa45", kill_on_drop: false }`
[INFO] [stdout] 4d4e5b84b4c39efab2eb94103dc0d2bb75c9f35519cf87207716bb70b0d5fa45