[INFO] fetching crate tectonic_xdv 0.2.2...
[INFO] testing tectonic_xdv-0.2.2 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate tectonic_xdv 0.2.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate tectonic_xdv 0.2.2
[INFO] finished tweaking crates.io crate tectonic_xdv 0.2.2
[INFO] tweaked toml for crates.io crate tectonic_xdv 0.2.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tectonic_xdv 0.2.2 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tectonic_xdv 0.2.2 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8252080d6f1dd9c7ad71e2c5f7a97bfae495f6b5eb821797ff441a8c1339af73
[INFO] running `Command { std: "docker" "start" "-a" "8252080d6f1dd9c7ad71e2c5f7a97bfae495f6b5eb821797ff441a8c1339af73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8252080d6f1dd9c7ad71e2c5f7a97bfae495f6b5eb821797ff441a8c1339af73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8252080d6f1dd9c7ad71e2c5f7a97bfae495f6b5eb821797ff441a8c1339af73", kill_on_drop: false }`
[INFO] [stdout] 8252080d6f1dd9c7ad71e2c5f7a97bfae495f6b5eb821797ff441a8c1339af73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afb6feb6d0e690d0360f3b3bf7c11c8aa0cee00c4b8ea9d6b136870ba0bc0433
[INFO] running `Command { std: "docker" "start" "-a" "afb6feb6d0e690d0360f3b3bf7c11c8aa0cee00c4b8ea9d6b136870ba0bc0433", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling tectonic_xdv v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]     --> src/lib.rs:1232:27
[INFO] [stdout]      |
[INFO] [stdout] 1232 |         let rv = unsafe { mem::transmute(self.buf[0]) };
[INFO] [stdout]      |                           --------------^^^^^^^^^^^^^
[INFO] [stdout]      |                           |
[INFO] [stdout]      |                           help: replace this with: `u8::cast_signed`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "afb6feb6d0e690d0360f3b3bf7c11c8aa0cee00c4b8ea9d6b136870ba0bc0433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afb6feb6d0e690d0360f3b3bf7c11c8aa0cee00c4b8ea9d6b136870ba0bc0433", kill_on_drop: false }`
[INFO] [stdout] afb6feb6d0e690d0360f3b3bf7c11c8aa0cee00c4b8ea9d6b136870ba0bc0433
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb4e0d33ea9843cb53f8dd5d2e8d374b3fe6382344c40b2c84463bba2e1b6078
[INFO] running `Command { std: "docker" "start" "-a" "bb4e0d33ea9843cb53f8dd5d2e8d374b3fe6382344c40b2c84463bba2e1b6078", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]     --> src/lib.rs:1232:27
[INFO] [stdout]      |
[INFO] [stdout] 1232 |         let rv = unsafe { mem::transmute(self.buf[0]) };
[INFO] [stdout]      |                           --------------^^^^^^^^^^^^^
[INFO] [stdout]      |                           |
[INFO] [stdout]      |                           help: replace this with: `u8::cast_signed`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling tectonic_xdv v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]     --> src/lib.rs:1232:27
[INFO] [stdout]      |
[INFO] [stdout] 1232 |         let rv = unsafe { mem::transmute(self.buf[0]) };
[INFO] [stdout]      |                           --------------^^^^^^^^^^^^^
[INFO] [stdout]      |                           |
[INFO] [stdout]      |                           help: replace this with: `u8::cast_signed`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.86s
[INFO] running `Command { std: "docker" "inspect" "bb4e0d33ea9843cb53f8dd5d2e8d374b3fe6382344c40b2c84463bba2e1b6078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb4e0d33ea9843cb53f8dd5d2e8d374b3fe6382344c40b2c84463bba2e1b6078", kill_on_drop: false }`
[INFO] [stdout] bb4e0d33ea9843cb53f8dd5d2e8d374b3fe6382344c40b2c84463bba2e1b6078
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ae85730c8ac4b47208cac5ffaf8498341d499624a68675e64fb8a24636473774
[INFO] running `Command { std: "docker" "start" "-a" "ae85730c8ac4b47208cac5ffaf8498341d499624a68675e64fb8a24636473774", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary transmute
[INFO] [stderr]     --> src/lib.rs:1232:27
[INFO] [stderr]      |
[INFO] [stderr] 1232 |         let rv = unsafe { mem::transmute(self.buf[0]) };
[INFO] [stderr]      |                           --------------^^^^^^^^^^^^^
[INFO] [stderr]      |                           |
[INFO] [stderr]      |                           help: replace this with: `u8::cast_signed`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tectonic_xdv` (lib) generated 1 warning (run `cargo fix --lib -p tectonic_xdv` to apply 1 suggestion)
[INFO] [stderr] warning: `tectonic_xdv` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tectonic_xdv-577fe196a19e7e05)
[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] [stderr]    Doc-tests tectonic_xdv
[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" "ae85730c8ac4b47208cac5ffaf8498341d499624a68675e64fb8a24636473774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae85730c8ac4b47208cac5ffaf8498341d499624a68675e64fb8a24636473774", kill_on_drop: false }`
[INFO] [stdout] ae85730c8ac4b47208cac5ffaf8498341d499624a68675e64fb8a24636473774