[INFO] fetching crate omnom 3.0.0...
[INFO] checking omnom-3.0.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate omnom 3.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate omnom 3.0.0 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 omnom 3.0.0
[INFO] finished tweaking crates.io crate omnom 3.0.0
[INFO] tweaked toml for crates.io crate omnom 3.0.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate omnom 3.0.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f8bc55509ed16598c426166cb43d7ab6041c3d1b3b6dcd272dc4944e8fbab3e
[INFO] running `Command { std: "docker" "start" "-a" "0f8bc55509ed16598c426166cb43d7ab6041c3d1b3b6dcd272dc4944e8fbab3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f8bc55509ed16598c426166cb43d7ab6041c3d1b3b6dcd272dc4944e8fbab3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f8bc55509ed16598c426166cb43d7ab6041c3d1b3b6dcd272dc4944e8fbab3e", kill_on_drop: false }`
[INFO] [stdout] 0f8bc55509ed16598c426166cb43d7ab6041c3d1b3b6dcd272dc4944e8fbab3e
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bce06a6b22395eba856611b6122c20a62bfa3bab147e782c1e3b7c4ac353bbc
[INFO] running `Command { std: "docker" "start" "-a" "4bce06a6b22395eba856611b6122c20a62bfa3bab147e782c1e3b7c4ac353bbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking omnom v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "4bce06a6b22395eba856611b6122c20a62bfa3bab147e782c1e3b7c4ac353bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bce06a6b22395eba856611b6122c20a62bfa3bab147e782c1e3b7c4ac353bbc", kill_on_drop: false }`
[INFO] [stdout] 4bce06a6b22395eba856611b6122c20a62bfa3bab147e782c1e3b7c4ac353bbc
[INFO] checking omnom-3.0.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate omnom 3.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate omnom 3.0.0 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 omnom 3.0.0
[INFO] finished tweaking crates.io crate omnom 3.0.0
[INFO] tweaked toml for crates.io crate omnom 3.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate omnom 3.0.0 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3e6294fd522c09fd34b80ae27b5d6da81dc2e72da3630c7d839f2cf657f43b86
[INFO] running `Command { std: "docker" "start" "-a" "3e6294fd522c09fd34b80ae27b5d6da81dc2e72da3630c7d839f2cf657f43b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e6294fd522c09fd34b80ae27b5d6da81dc2e72da3630c7d839f2cf657f43b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e6294fd522c09fd34b80ae27b5d6da81dc2e72da3630c7d839f2cf657f43b86", kill_on_drop: false }`
[INFO] [stdout] 3e6294fd522c09fd34b80ae27b5d6da81dc2e72da3630c7d839f2cf657f43b86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 72f2797b294fa5d22e8a885b9d99940796d7ac7933be905c6c6196749950f281
[INFO] running `Command { std: "docker" "start" "-a" "72f2797b294fa5d22e8a885b9d99940796d7ac7933be905c6c6196749950f281", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking omnom v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/buf_read_ext.rs:96:13
[INFO] [stdout]     |
[INFO] [stdout] 96  | /             match self.read(slice::from_mut(&mut byte)) {
[INFO] [stdout] 97  | |                 Ok(0) => break,
[INFO] [stdout] 98  | |                 Ok(_) => {
[INFO] [stdout] 99  | |                     read += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 103 | |                 Err(e) => return Err(e),
[INFO] [stdout] 104 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/buf_read_ext.rs:96:13
[INFO] [stdout]     |
[INFO] [stdout] 96  | /             match self.read(slice::from_mut(&mut byte)) {
[INFO] [stdout] 97  | |                 Ok(0) => break,
[INFO] [stdout] 98  | |                 Ok(_) => {
[INFO] [stdout] 99  | |                     read += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 103 | |                 Err(e) => return Err(e),
[INFO] [stdout] 104 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[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] [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 `omnom` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `omnom` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "72f2797b294fa5d22e8a885b9d99940796d7ac7933be905c6c6196749950f281", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72f2797b294fa5d22e8a885b9d99940796d7ac7933be905c6c6196749950f281", kill_on_drop: false }`
[INFO] [stdout] 72f2797b294fa5d22e8a885b9d99940796d7ac7933be905c6c6196749950f281