[INFO] fetching crate serde_ipld_dagcbor 0.6.4...
[INFO] building serde_ipld_dagcbor-0.6.4 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate serde_ipld_dagcbor 0.6.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate serde_ipld_dagcbor 0.6.4
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serde_ipld_dagcbor 0.6.4
[INFO] tweaked toml for crates.io crate serde_ipld_dagcbor 0.6.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_ipld_dagcbor 0.6.4 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde_ipld_dagcbor 0.6.4 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d721d87bce0b4811c0381e0488bec3c757ef3fa0e9694a149f2dbdb4591438c
[INFO] running `Command { std: "docker" "start" "-a" "2d721d87bce0b4811c0381e0488bec3c757ef3fa0e9694a149f2dbdb4591438c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d721d87bce0b4811c0381e0488bec3c757ef3fa0e9694a149f2dbdb4591438c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d721d87bce0b4811c0381e0488bec3c757ef3fa0e9694a149f2dbdb4591438c", kill_on_drop: false }`
[INFO] [stdout] 2d721d87bce0b4811c0381e0488bec3c757ef3fa0e9694a149f2dbdb4591438c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38d4ce227979d9c68cfe53901bc341c78003c0cd12c7a7d3add73a1b4ddb81f7
[INFO] running `Command { std: "docker" "start" "-a" "38d4ce227979d9c68cfe53901bc341c78003c0cd12c7a7d3add73a1b4ddb81f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]    Compiling base-x v0.2.11
[INFO] [stderr]    Compiling unsigned-varint v0.7.2
[INFO] [stderr]    Compiling unsigned-varint v0.8.0
[INFO] [stderr]    Compiling core2 v0.4.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.55
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.12
[INFO] [stderr]    Compiling data-encoding-macro v0.1.14
[INFO] [stderr]    Compiling multibase v0.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling serde_bytes v0.11.14
[INFO] [stderr]    Compiling multihash v0.19.1
[INFO] [stderr]    Compiling cbor4ii v0.2.14
[INFO] [stderr]    Compiling cid v0.11.1
[INFO] [stderr]    Compiling ipld-core v0.4.2
[INFO] [stderr]    Compiling serde_ipld_dagcbor v0.6.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.87s
[INFO] running `Command { std: "docker" "inspect" "38d4ce227979d9c68cfe53901bc341c78003c0cd12c7a7d3add73a1b4ddb81f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38d4ce227979d9c68cfe53901bc341c78003c0cd12c7a7d3add73a1b4ddb81f7", kill_on_drop: false }`
[INFO] [stdout] 38d4ce227979d9c68cfe53901bc341c78003c0cd12c7a7d3add73a1b4ddb81f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ec828cf4e816de85678e4cced79ecc7736929bef844f82c3ce5a397e7569a99
[INFO] running `Command { std: "docker" "start" "-a" "4ec828cf4e816de85678e4cced79ecc7736929bef844f82c3ce5a397e7569a99", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_tuple_macros v1.1.2
[INFO] [stderr]    Compiling const-hex v1.15.0
[INFO] [stderr]    Compiling serde-transcode v1.1.1
[INFO] [stderr]    Compiling serde_tuple v1.1.2
[INFO] [stderr]    Compiling serde_ipld_dagcbor v0.6.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Bar` is never used
[INFO] [stdout]   --> tests/enum.rs:90:6
[INFO] [stdout]    |
[INFO] [stdout] 90 | enum Bar {
[INFO] [stdout]    |      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SmallStruct` is never constructed
[INFO] [stdout]   --> tests/ipld.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | struct SmallStruct {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.04s
[INFO] running `Command { std: "docker" "inspect" "4ec828cf4e816de85678e4cced79ecc7736929bef844f82c3ce5a397e7569a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ec828cf4e816de85678e4cced79ecc7736929bef844f82c3ce5a397e7569a99", kill_on_drop: false }`
[INFO] [stdout] 4ec828cf4e816de85678e4cced79ecc7736929bef844f82c3ce5a397e7569a99