[INFO] fetching crate tectonic_xdv 0.2.2...
[INFO] checking tectonic_xdv-0.2.2 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate tectonic_xdv 0.2.2 into /workspace/builds/worker-6-tc1/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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tectonic_xdv 0.2.2 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a85f8455c00ca02ed2859ea3d2b18ef4c397a0bd9a8ac76f53340df73252dee
[INFO] running `Command { std: "docker" "start" "-a" "9a85f8455c00ca02ed2859ea3d2b18ef4c397a0bd9a8ac76f53340df73252dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a85f8455c00ca02ed2859ea3d2b18ef4c397a0bd9a8ac76f53340df73252dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a85f8455c00ca02ed2859ea3d2b18ef4c397a0bd9a8ac76f53340df73252dee", kill_on_drop: false }`
[INFO] [stdout] 9a85f8455c00ca02ed2859ea3d2b18ef4c397a0bd9a8ac76f53340df73252dee
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d0b96424c5f41327afd763d929b2a46d2d38a8a350c7efe329054539c5c900a
[INFO] running `Command { std: "docker" "start" "-a" "3d0b96424c5f41327afd763d929b2a46d2d38a8a350c7efe329054539c5c900a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking 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]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `Command { std: "docker" "inspect" "3d0b96424c5f41327afd763d929b2a46d2d38a8a350c7efe329054539c5c900a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d0b96424c5f41327afd763d929b2a46d2d38a8a350c7efe329054539c5c900a", kill_on_drop: false }`
[INFO] [stdout] 3d0b96424c5f41327afd763d929b2a46d2d38a8a350c7efe329054539c5c900a