[INFO] fetching crate libc-print 0.1.16...
[INFO] testing libc-print-0.1.16 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate libc-print 0.1.16 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libc-print 0.1.16 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 libc-print 0.1.16
[INFO] finished tweaking crates.io crate libc-print 0.1.16
[INFO] tweaked toml for crates.io crate libc-print 0.1.16 written to /workspace/builds/worker-4/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-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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddf27e82d39478dd28c3311e24513738d6064f8b21790f517f7aab34185c57aa
[INFO] running `Command { std: "docker" "start" "-a" "ddf27e82d39478dd28c3311e24513738d6064f8b21790f517f7aab34185c57aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddf27e82d39478dd28c3311e24513738d6064f8b21790f517f7aab34185c57aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddf27e82d39478dd28c3311e24513738d6064f8b21790f517f7aab34185c57aa", kill_on_drop: false }`
[INFO] [stdout] ddf27e82d39478dd28c3311e24513738d6064f8b21790f517f7aab34185c57aa
[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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2db77bd3efbd1cc7caa1270bc688c36a8689d203d67570624bacfdfd024e9aff
[INFO] running `Command { std: "docker" "start" "-a" "2db77bd3efbd1cc7caa1270bc688c36a8689d203d67570624bacfdfd024e9aff", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling libc-print v0.1.16 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "2db77bd3efbd1cc7caa1270bc688c36a8689d203d67570624bacfdfd024e9aff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2db77bd3efbd1cc7caa1270bc688c36a8689d203d67570624bacfdfd024e9aff", kill_on_drop: false }`
[INFO] [stdout] 2db77bd3efbd1cc7caa1270bc688c36a8689d203d67570624bacfdfd024e9aff
[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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1e130be58970dbc6fce0ec8656c2036ea3be936439200a579bc5fe9616f1b0a
[INFO] running `Command { std: "docker" "start" "-a" "b1e130be58970dbc6fce0ec8656c2036ea3be936439200a579bc5fe9616f1b0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc-print v0.1.16 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "b1e130be58970dbc6fce0ec8656c2036ea3be936439200a579bc5fe9616f1b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1e130be58970dbc6fce0ec8656c2036ea3be936439200a579bc5fe9616f1b0a", kill_on_drop: false }`
[INFO] [stdout] b1e130be58970dbc6fce0ec8656c2036ea3be936439200a579bc5fe9616f1b0a
[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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 046a643061d9408c3aa80aa99837b6c322ab2eab1a753c8ecff7fa0460c023c2
[INFO] running `Command { std: "docker" "start" "-a" "046a643061d9408c3aa80aa99837b6c322ab2eab1a753c8ecff7fa0460c023c2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libc_print-dfd1eac29c6d2a1c)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr] stderr fd = 2
[INFO] [stdout] stdout fd = 1
[INFO] [stderr] stderr fd = 2
[INFO] [stderr] stderr!
[INFO] [stdout] test std_name::tests_std_name::test_stderr ... ok
[INFO] [stdout] test std_name::tests_std_name::test_stdout ... ok
[INFO] [stdout] stdout!
[INFO] [stdout] test tests::test_stderr ... ok
[INFO] [stdout] test tests::test_stderr_write ... ok
[INFO] [stdout] test tests::test_stdout_write ... ok
[INFO] [stdout] stdout fd = 1
[INFO] [stdout] test tests::test_stdout ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libc_print
[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" "046a643061d9408c3aa80aa99837b6c322ab2eab1a753c8ecff7fa0460c023c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "046a643061d9408c3aa80aa99837b6c322ab2eab1a753c8ecff7fa0460c023c2", kill_on_drop: false }`
[INFO] [stdout] 046a643061d9408c3aa80aa99837b6c322ab2eab1a753c8ecff7fa0460c023c2