[INFO] fetching crate subtle-encoding 0.5.1...
[INFO] checking subtle-encoding-0.5.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate subtle-encoding 0.5.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate subtle-encoding 0.5.1 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 subtle-encoding 0.5.1
[INFO] finished tweaking crates.io crate subtle-encoding 0.5.1
[INFO] tweaked toml for crates.io crate subtle-encoding 0.5.1 written to /workspace/builds/worker-1-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 2 packages
[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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ae14c689353efe13c71666e5b9f8851ec5c27f6ca5273cce458e3e4e3dd14afd
[INFO] running `Command { std: "docker" "start" "-a" "ae14c689353efe13c71666e5b9f8851ec5c27f6ca5273cce458e3e4e3dd14afd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae14c689353efe13c71666e5b9f8851ec5c27f6ca5273cce458e3e4e3dd14afd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae14c689353efe13c71666e5b9f8851ec5c27f6ca5273cce458e3e4e3dd14afd", kill_on_drop: false }`
[INFO] [stdout] ae14c689353efe13c71666e5b9f8851ec5c27f6ca5273cce458e3e4e3dd14afd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7a99e0fd4328701eb372777585b5a76f0655a790bcb97ed099197fdcfe240b98
[INFO] running `Command { std: "docker" "start" "-a" "7a99e0fd4328701eb372777585b5a76f0655a790bcb97ed099197fdcfe240b98", kill_on_drop: false }`
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking subtle-encoding v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "7a99e0fd4328701eb372777585b5a76f0655a790bcb97ed099197fdcfe240b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a99e0fd4328701eb372777585b5a76f0655a790bcb97ed099197fdcfe240b98", kill_on_drop: false }`
[INFO] [stdout] 7a99e0fd4328701eb372777585b5a76f0655a790bcb97ed099197fdcfe240b98
[INFO] checking subtle-encoding-0.5.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate subtle-encoding 0.5.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate subtle-encoding 0.5.1 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 subtle-encoding 0.5.1
[INFO] finished tweaking crates.io crate subtle-encoding 0.5.1
[INFO] tweaked toml for crates.io crate subtle-encoding 0.5.1 written to /workspace/builds/worker-1-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]     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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6ffd463dbd3b882f6d5ff6387997a0117dd98553bb6f05e3dfcfa284996565b8
[INFO] running `Command { std: "docker" "start" "-a" "6ffd463dbd3b882f6d5ff6387997a0117dd98553bb6f05e3dfcfa284996565b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ffd463dbd3b882f6d5ff6387997a0117dd98553bb6f05e3dfcfa284996565b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ffd463dbd3b882f6d5ff6387997a0117dd98553bb6f05e3dfcfa284996565b8", kill_on_drop: false }`
[INFO] [stdout] 6ffd463dbd3b882f6d5ff6387997a0117dd98553bb6f05e3dfcfa284996565b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 11a18f94e349506d3986cc8ead34870f53a6bb59698630cd24b1e9a273c7e8be
[INFO] running `Command { std: "docker" "start" "-a" "11a18f94e349506d3986cc8ead34870f53a6bb59698630cd24b1e9a273c7e8be", kill_on_drop: false }`
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking subtle-encoding v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/error.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Err($err)?;
[INFO] [stdout]    |             ^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/base64.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         ensure!(self.decoded_len(src)? <= dst.len(), LengthInvalid);
[INFO] [stdout]    |         ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `ensure` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/error.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Err($err)?;
[INFO] [stdout]    |             ^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/base64.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         ensure!(self.decoded_len(src)? <= dst.len(), LengthInvalid);
[INFO] [stdout]    |         ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `ensure` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/error.rs:54:13
[INFO] [stdout]     |
[INFO] [stdout] 54  |             Err($err)?;
[INFO] [stdout]     |             ^^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/hex.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         ensure!(dst_length <= dst.len(), LengthInvalid);
[INFO] [stdout]     |         ----------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `ensure` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/error.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Err($err)?;
[INFO] [stdout]    |             ^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/identity.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         ensure!(self.encoded_len(src) == dst.len(), LengthInvalid);
[INFO] [stdout]    |         ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `ensure` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/error.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Err($err)?;
[INFO] [stdout]    |             ^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/identity.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         ensure!(self.decoded_len(src)? == dst.len(), LengthInvalid);
[INFO] [stdout]    |         ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `ensure` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/error.rs:54:13
[INFO] [stdout]     |
[INFO] [stdout] 54  |             Err($err)?;
[INFO] [stdout]     |             ^^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/hex.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         ensure!(dst_length <= dst.len(), LengthInvalid);
[INFO] [stdout]     |         ----------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `ensure` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/error.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Err($err)?;
[INFO] [stdout]    |             ^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/identity.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         ensure!(self.encoded_len(src) == dst.len(), LengthInvalid);
[INFO] [stdout]    |         ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `ensure` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/error.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Err($err)?;
[INFO] [stdout]    |             ^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/identity.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         ensure!(self.decoded_len(src)? == dst.len(), LengthInvalid);
[INFO] [stdout]    |         ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `ensure` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `subtle-encoding` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `subtle-encoding` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "11a18f94e349506d3986cc8ead34870f53a6bb59698630cd24b1e9a273c7e8be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11a18f94e349506d3986cc8ead34870f53a6bb59698630cd24b1e9a273c7e8be", kill_on_drop: false }`
[INFO] [stdout] 11a18f94e349506d3986cc8ead34870f53a6bb59698630cd24b1e9a273c7e8be