[INFO] fetching crate hc128 0.1.6...
[INFO] checking hc128-0.1.6 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate hc128 0.1.6 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate hc128 0.1.6 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hc128 0.1.6
[INFO] finished tweaking crates.io crate hc128 0.1.6
[INFO] tweaked toml for crates.io crate hc128 0.1.6 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages
[INFO] [stderr]       Adding lazy_static v0.2.11 (latest: v1.4.0)
[INFO] [stderr]       Adding rand v0.3.23 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding time v0.1.45 (latest: v0.3.34)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 703521d624dc802e6c3c21187a2aba49c5102f9a8ab5e397db5851c82879b858
[INFO] running `Command { std: "docker" "start" "-a" "703521d624dc802e6c3c21187a2aba49c5102f9a8ab5e397db5851c82879b858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "703521d624dc802e6c3c21187a2aba49c5102f9a8ab5e397db5851c82879b858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "703521d624dc802e6c3c21187a2aba49c5102f9a8ab5e397db5851c82879b858", kill_on_drop: false }`
[INFO] [stdout] 703521d624dc802e6c3c21187a2aba49c5102f9a8ab5e397db5851c82879b858
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e11654cedb559c52686196bc9743475b68d06babaa21524a28b524d22e548e89
[INFO] running `Command { std: "docker" "start" "-a" "e11654cedb559c52686196bc9743475b68d06babaa21524a28b524d22e548e89", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking hc128 v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> benches/bench.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / lazy_static!{
[INFO] [stdout] 13 | |     static ref KEY: [u8; 16] = {
[INFO] [stdout] 14 | |         let mut key = [0; 16];
[INFO] [stdout] 15 | |         thread_rng().fill_bytes(&mut key);
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |     };
[INFO] [stdout] 28 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> benches/bench.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / lazy_static!{
[INFO] [stdout] 13 | |     static ref KEY: [u8; 16] = {
[INFO] [stdout] 14 | |         let mut key = [0; 16];
[INFO] [stdout] 15 | |         thread_rng().fill_bytes(&mut key);
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |     };
[INFO] [stdout] 28 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> benches/bench.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / lazy_static!{
[INFO] [stdout] 13 | |     static ref KEY: [u8; 16] = {
[INFO] [stdout] 14 | |         let mut key = [0; 16];
[INFO] [stdout] 15 | |         thread_rng().fill_bytes(&mut key);
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |     };
[INFO] [stdout] 28 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "e11654cedb559c52686196bc9743475b68d06babaa21524a28b524d22e548e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e11654cedb559c52686196bc9743475b68d06babaa21524a28b524d22e548e89", kill_on_drop: false }`
[INFO] [stdout] e11654cedb559c52686196bc9743475b68d06babaa21524a28b524d22e548e89
[INFO] checking hc128-0.1.6 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate hc128 0.1.6 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate hc128 0.1.6 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hc128 0.1.6
[INFO] finished tweaking crates.io crate hc128 0.1.6
[INFO] tweaked toml for crates.io crate hc128 0.1.6 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d1286ef54a5c93d797422cd7d33efa8b3dd3b006ce755368e388cbec3851fc2
[INFO] running `Command { std: "docker" "start" "-a" "4d1286ef54a5c93d797422cd7d33efa8b3dd3b006ce755368e388cbec3851fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d1286ef54a5c93d797422cd7d33efa8b3dd3b006ce755368e388cbec3851fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d1286ef54a5c93d797422cd7d33efa8b3dd3b006ce755368e388cbec3851fc2", kill_on_drop: false }`
[INFO] [stdout] 4d1286ef54a5c93d797422cd7d33efa8b3dd3b006ce755368e388cbec3851fc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3c97d852968c4d409bf1f4c287f5c84701d6373dafb7aae471bc3401701fa54
[INFO] running `Command { std: "docker" "start" "-a" "a3c97d852968c4d409bf1f4c287f5c84701d6373dafb7aae471bc3401701fa54", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking hc128 v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.25/src/json.rs:1387:20
[INFO] [stdout]      |
[INFO] [stdout] 1387 |             _ => { panic!(); }
[INFO] [stdout]      |                    ^^^^^^^^ cannot infer type
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a3c97d852968c4d409bf1f4c287f5c84701d6373dafb7aae471bc3401701fa54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3c97d852968c4d409bf1f4c287f5c84701d6373dafb7aae471bc3401701fa54", kill_on_drop: false }`
[INFO] [stdout] a3c97d852968c4d409bf1f4c287f5c84701d6373dafb7aae471bc3401701fa54