[INFO] fetching crate json-writer 0.4.0...
[INFO] testing json-writer-0.4.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate json-writer 0.4.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate json-writer 0.4.0
[INFO] finished tweaking crates.io crate json-writer 0.4.0
[INFO] tweaked toml for crates.io crate json-writer 0.4.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate json-writer 0.4.0 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 2 packages to latest compatible versions
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] c5271c4a1e7a70ca7c67decfcbd82f4f4fd3da2b1c4b9120ac1ca79bec7aa94d
[INFO] running `Command { std: "docker" "start" "-a" "c5271c4a1e7a70ca7c67decfcbd82f4f4fd3da2b1c4b9120ac1ca79bec7aa94d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5271c4a1e7a70ca7c67decfcbd82f4f4fd3da2b1c4b9120ac1ca79bec7aa94d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5271c4a1e7a70ca7c67decfcbd82f4f4fd3da2b1c4b9120ac1ca79bec7aa94d", kill_on_drop: false }`
[INFO] [stdout] c5271c4a1e7a70ca7c67decfcbd82f4f4fd3da2b1c4b9120ac1ca79bec7aa94d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1a94bfd162d85e0b7c2cd039ec4622d03baba784ee8eb0d62299103a6e5bcc0a
[INFO] running `Command { std: "docker" "start" "-a" "1a94bfd162d85e0b7c2cd039ec4622d03baba784ee8eb0d62299103a6e5bcc0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-writer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "1a94bfd162d85e0b7c2cd039ec4622d03baba784ee8eb0d62299103a6e5bcc0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a94bfd162d85e0b7c2cd039ec4622d03baba784ee8eb0d62299103a6e5bcc0a", kill_on_drop: false }`
[INFO] [stdout] 1a94bfd162d85e0b7c2cd039ec4622d03baba784ee8eb0d62299103a6e5bcc0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d094f9f9e7e6285e65c45b61c59b7dc2adf19c12fc45d02217ae3bb95b7f7d44
[INFO] running `Command { std: "docker" "start" "-a" "d094f9f9e7e6285e65c45b61c59b7dc2adf19c12fc45d02217ae3bb95b7f7d44", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-writer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "d094f9f9e7e6285e65c45b61c59b7dc2adf19c12fc45d02217ae3bb95b7f7d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d094f9f9e7e6285e65c45b61c59b7dc2adf19c12fc45d02217ae3bb95b7f7d44", kill_on_drop: false }`
[INFO] [stdout] d094f9f9e7e6285e65c45b61c59b7dc2adf19c12fc45d02217ae3bb95b7f7d44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 61229d682d60c32c421b3ee91b854dc11d33ee1e38ddccb2a5f40d48148849bb
[INFO] running `Command { std: "docker" "start" "-a" "61229d682d60c32c421b3ee91b854dc11d33ee1e38ddccb2a5f40d48148849bb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/json_writer-d6da8be1b1359906)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test tests::test_array ... ok
[INFO] [stdout] test tests::test_array_range ... ok
[INFO] [stdout] test tests::test_dtoa ... ok
[INFO] [stdout] test tests::test_duplicate_keys ... ok
[INFO] [stdout] test tests::test_basic_example ... ok
[INFO] [stdout] test tests::test_object ... ok
[INFO] [stdout] test tests::test_string_writer ... ok
[INFO] [stdout] test tests::test_pretty ... ok
[INFO] [stdout] test tests::test_strings ... ok
[INFO] [stdout] test tests::test_misc_examples ... ok
[INFO] [stdout] test tests::test_encoding ... ok
[INFO] [stdout] test tests::test_numbers ... ok
[INFO] [stdout] test tests::test_flush ... ok
[INFO] [stderr]    Doc-tests json_writer
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 103) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - (line 80) ... ok
[INFO] [stdout] test src/lib.rs - (line 118) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "61229d682d60c32c421b3ee91b854dc11d33ee1e38ddccb2a5f40d48148849bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61229d682d60c32c421b3ee91b854dc11d33ee1e38ddccb2a5f40d48148849bb", kill_on_drop: false }`
[INFO] [stdout] 61229d682d60c32c421b3ee91b854dc11d33ee1e38ddccb2a5f40d48148849bb