[INFO] fetching crate ser-write 0.3.1...
[INFO] testing ser-write-0.3.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate ser-write 0.3.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate ser-write 0.3.1
[INFO] finished tweaking crates.io crate ser-write 0.3.1
[INFO] tweaked toml for crates.io crate ser-write 0.3.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ser-write 0.3.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ser-write 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25e81f01aeabef0a62c308b3c0a97197aad4835cb0bd0fe0fce50eaf3c9e17ee
[INFO] running `Command { std: "docker" "start" "-a" "25e81f01aeabef0a62c308b3c0a97197aad4835cb0bd0fe0fce50eaf3c9e17ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25e81f01aeabef0a62c308b3c0a97197aad4835cb0bd0fe0fce50eaf3c9e17ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e81f01aeabef0a62c308b3c0a97197aad4835cb0bd0fe0fce50eaf3c9e17ee", kill_on_drop: false }`
[INFO] [stdout] 25e81f01aeabef0a62c308b3c0a97197aad4835cb0bd0fe0fce50eaf3c9e17ee
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc41f29706a82615102aff001617068d7494376de3088e50701440210bd30401
[INFO] running `Command { std: "docker" "start" "-a" "bc41f29706a82615102aff001617068d7494376de3088e50701440210bd30401", kill_on_drop: false }`
[INFO] [stderr]    Compiling ser-write v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "bc41f29706a82615102aff001617068d7494376de3088e50701440210bd30401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc41f29706a82615102aff001617068d7494376de3088e50701440210bd30401", kill_on_drop: false }`
[INFO] [stdout] bc41f29706a82615102aff001617068d7494376de3088e50701440210bd30401
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd1865ae5290fdc96fd85a13f218e1c4700ffcaa112467908d02397090ca1970
[INFO] running `Command { std: "docker" "start" "-a" "fd1865ae5290fdc96fd85a13f218e1c4700ffcaa112467908d02397090ca1970", kill_on_drop: false }`
[INFO] [stderr]    Compiling ser-write v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "fd1865ae5290fdc96fd85a13f218e1c4700ffcaa112467908d02397090ca1970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd1865ae5290fdc96fd85a13f218e1c4700ffcaa112467908d02397090ca1970", kill_on_drop: false }`
[INFO] [stdout] fd1865ae5290fdc96fd85a13f218e1c4700ffcaa112467908d02397090ca1970
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ff11e68ae85be853494c332860e6d2c744060378e8f91e210c9fb3a1d5104075
[INFO] running `Command { std: "docker" "start" "-a" "ff11e68ae85be853494c332860e6d2c744060378e8f91e210c9fb3a1d5104075", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ser_write-21bdd374cc6b5fb1)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test foreign::tests::test_ser_write_cursor ... ok
[INFO] [stdout] test foreign::tests::test_ser_write_vec_deque ... ok
[INFO] [stdout] test foreign::tests::test_ser_write_vec ... ok
[INFO] [stdout] test tests::test_slice_writer ... ok
[INFO] [stdout] test tests::test_ser_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ser_write
[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" "ff11e68ae85be853494c332860e6d2c744060378e8f91e210c9fb3a1d5104075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff11e68ae85be853494c332860e6d2c744060378e8f91e210c9fb3a1d5104075", kill_on_drop: false }`
[INFO] [stdout] ff11e68ae85be853494c332860e6d2c744060378e8f91e210c9fb3a1d5104075