[INFO] fetching crate rust_multicodec 0.2.0...
[INFO] checking rust_multicodec-0.2.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] extracting crate rust_multicodec 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate rust_multicodec 0.2.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_multicodec 0.2.0
[INFO] finished tweaking crates.io crate rust_multicodec 0.2.0
[INFO] tweaked toml for crates.io crate rust_multicodec 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages
[INFO] [stderr]       Adding integer-encoding v1.1.7 (latest: v4.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hex-slice v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de50bb9602338eaf6940c2a3a7366349f9c3b3a775e549a2628e9aaea45a3029
[INFO] running `Command { std: "docker" "start" "-a" "de50bb9602338eaf6940c2a3a7366349f9c3b3a775e549a2628e9aaea45a3029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de50bb9602338eaf6940c2a3a7366349f9c3b3a775e549a2628e9aaea45a3029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de50bb9602338eaf6940c2a3a7366349f9c3b3a775e549a2628e9aaea45a3029", kill_on_drop: false }`
[INFO] [stdout] de50bb9602338eaf6940c2a3a7366349f9c3b3a775e549a2628e9aaea45a3029
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25bc3cdd0ab7883d2452d59ff26db2fc42f92c29396ad2d338c40cffff86445f
[INFO] running `Command { std: "docker" "start" "-a" "25bc3cdd0ab7883d2452d59ff26db2fc42f92c29396ad2d338c40cffff86445f", kill_on_drop: false }`
[INFO] [stderr]     Checking integer-encoding v1.1.7
[INFO] [stderr]     Checking hex-slice v0.1.4
[INFO] [stderr]     Checking rust_multicodec v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no function or associated item named `decode_var_vec` found for type `u64` in the current scope
[INFO] [stdout]   --> src/codec_prefix.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let decoded:(u64,usize)=u64::decode_var_vec(&Vec::from(data));
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ function or associated item not found in `u64`
[INFO] [stdout]    |
[INFO] [stdout] help: there is an associated function `decode_var` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let decoded:(u64,usize)=u64::decode_var(&Vec::from(data));
[INFO] [stdout]    |                                  ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `decode_var_vec` found for type `u64` in the current scope
[INFO] [stdout]   --> src/codec_prefix.rs:97:34
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let decoded:(u64,usize)=u64::decode_var_vec(&Vec::from(data));
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ function or associated item not found in `u64`
[INFO] [stdout]    |
[INFO] [stdout] help: there is an associated function `decode_var` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let decoded:(u64,usize)=u64::decode_var(&Vec::from(data));
[INFO] [stdout]    |                                  ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `decode_var_vec` found for type `u64` in the current scope
[INFO] [stdout]   --> src/codec_prefix.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let decoded:(u64,usize)=u64::decode_var_vec(&Vec::from(data));
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ function or associated item not found in `u64`
[INFO] [stdout]    |
[INFO] [stdout] help: there is an associated function `decode_var` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let decoded:(u64,usize)=u64::decode_var(&Vec::from(data));
[INFO] [stdout]    |                                  ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `decode_var_vec` found for type `u64` in the current scope
[INFO] [stdout]   --> src/codec_prefix.rs:97:34
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let decoded:(u64,usize)=u64::decode_var_vec(&Vec::from(data));
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ function or associated item not found in `u64`
[INFO] [stdout]    |
[INFO] [stdout] help: there is an associated function `decode_var` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let decoded:(u64,usize)=u64::decode_var(&Vec::from(data));
[INFO] [stdout]    |                                  ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_multicodec` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_multicodec` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "25bc3cdd0ab7883d2452d59ff26db2fc42f92c29396ad2d338c40cffff86445f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25bc3cdd0ab7883d2452d59ff26db2fc42f92c29396ad2d338c40cffff86445f", kill_on_drop: false }`
[INFO] [stdout] 25bc3cdd0ab7883d2452d59ff26db2fc42f92c29396ad2d338c40cffff86445f