[INFO] fetching crate tectonic_xdv 0.2.2...
[INFO] building tectonic_xdv-0.2.2 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate tectonic_xdv 0.2.2 into /workspace/builds/worker-0-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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tectonic_xdv 0.2.2 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2596337a5106cc1ed41f17a39bfc05d04c1a9a54ceeeacbf5a000328957b73ac
[INFO] running `Command { std: "docker" "start" "-a" "2596337a5106cc1ed41f17a39bfc05d04c1a9a54ceeeacbf5a000328957b73ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2596337a5106cc1ed41f17a39bfc05d04c1a9a54ceeeacbf5a000328957b73ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2596337a5106cc1ed41f17a39bfc05d04c1a9a54ceeeacbf5a000328957b73ac", kill_on_drop: false }`
[INFO] [stdout] 2596337a5106cc1ed41f17a39bfc05d04c1a9a54ceeeacbf5a000328957b73ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adb0ee969f8c8540bc1183cc7ac43c4ae52ebfbd838f7a9ca04a5d86b5a82fd3
[INFO] running `Command { std: "docker" "start" "-a" "adb0ee969f8c8540bc1183cc7ac43c4ae52ebfbd838f7a9ca04a5d86b5a82fd3", 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 0.95s
[INFO] running `Command { std: "docker" "inspect" "adb0ee969f8c8540bc1183cc7ac43c4ae52ebfbd838f7a9ca04a5d86b5a82fd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb0ee969f8c8540bc1183cc7ac43c4ae52ebfbd838f7a9ca04a5d86b5a82fd3", kill_on_drop: false }`
[INFO] [stdout] adb0ee969f8c8540bc1183cc7ac43c4ae52ebfbd838f7a9ca04a5d86b5a82fd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2011f61031fddb89736649221835c62ee17d8b2fe2d651de75940706ea6c4faf
[INFO] running `Command { std: "docker" "start" "-a" "2011f61031fddb89736649221835c62ee17d8b2fe2d651de75940706ea6c4faf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling strsim v0.8.0
[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 vec_map v0.8.2
[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 7.71s
[INFO] running `Command { std: "docker" "inspect" "2011f61031fddb89736649221835c62ee17d8b2fe2d651de75940706ea6c4faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2011f61031fddb89736649221835c62ee17d8b2fe2d651de75940706ea6c4faf", kill_on_drop: false }`
[INFO] [stdout] 2011f61031fddb89736649221835c62ee17d8b2fe2d651de75940706ea6c4faf