[INFO] fetching crate tiny-cid 0.3.0...
[INFO] checking tiny-cid-0.3.0 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate tiny-cid 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tiny-cid 0.3.0 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tiny-cid 0.3.0
[INFO] finished tweaking crates.io crate tiny-cid 0.3.0
[INFO] tweaked toml for crates.io crate tiny-cid 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tiny-multihash v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da076fc44eae05bac1ef6f12d3037240dcb1995482974f0d8945ecf730afb2f3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "da076fc44eae05bac1ef6f12d3037240dcb1995482974f0d8945ecf730afb2f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da076fc44eae05bac1ef6f12d3037240dcb1995482974f0d8945ecf730afb2f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da076fc44eae05bac1ef6f12d3037240dcb1995482974f0d8945ecf730afb2f3", kill_on_drop: false }`
[INFO] [stdout] da076fc44eae05bac1ef6f12d3037240dcb1995482974f0d8945ecf730afb2f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83754b0bd8d9252f44107c7c60c8380f5ee1a7ee956a783e3fed68c67f9412b9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "83754b0bd8d9252f44107c7c60c8380f5ee1a7ee956a783e3fed68c67f9412b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking base-x v0.2.8
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]     Checking blake2s_simd v0.5.11
[INFO] [stderr]     Checking strobe-rs v0.5.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking sha-1 v0.9.4
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.9
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling tiny-multihash-derive v0.5.0
[INFO] [stderr]     Checking data-encoding-macro v0.1.10
[INFO] [stderr]     Checking multibase v0.8.0
[INFO] [stderr]     Checking tiny-multihash v0.5.0
[INFO] [stderr]     Checking tiny-cid v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/cid.rs:77:13
[INFO] [stdout]     |
[INFO] [stdout] 77  |         use core::convert::TryFrom;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/cid.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |         use core::convert::TryFrom;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/cid.rs:77:13
[INFO] [stdout]     |
[INFO] [stdout] 77  |         use core::convert::TryFrom;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/cid.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |         use core::convert::TryFrom;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.61s
[INFO] running `Command { std: "docker" "inspect" "83754b0bd8d9252f44107c7c60c8380f5ee1a7ee956a783e3fed68c67f9412b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83754b0bd8d9252f44107c7c60c8380f5ee1a7ee956a783e3fed68c67f9412b9", kill_on_drop: false }`
[INFO] [stdout] 83754b0bd8d9252f44107c7c60c8380f5ee1a7ee956a783e3fed68c67f9412b9