[INFO] fetching crate pickleback 0.1.0...
[INFO] checking pickleback-0.1.0 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate pickleback 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate pickleback 0.1.0 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pickleback 0.1.0
[INFO] finished tweaking crates.io crate pickleback 0.1.0
[INFO] tweaked toml for crates.io crate pickleback 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 45 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.10.2 (available: v0.11.5)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lifeguard v0.6.1
[INFO] [stderr]   Downloaded assert_float_eq v1.1.3
[INFO] [stderr]   Downloaded smallmap v1.4.2
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb548a9c440df111f79a154542d01cb959d7f6de356e993032daf23f74518faa
[INFO] running `Command { std: "docker" "start" "-a" "bb548a9c440df111f79a154542d01cb959d7f6de356e993032daf23f74518faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb548a9c440df111f79a154542d01cb959d7f6de356e993032daf23f74518faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb548a9c440df111f79a154542d01cb959d7f6de356e993032daf23f74518faa", kill_on_drop: false }`
[INFO] [stdout] bb548a9c440df111f79a154542d01cb959d7f6de356e993032daf23f74518faa
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d8f22b3b77e65453ebd64d90a2a7d74fc24ad5b7ac54f2c6729bcf37816531f
[INFO] running `Command { std: "docker" "start" "-a" "7d8f22b3b77e65453ebd64d90a2a7d74fc24ad5b7ac54f2c6729bcf37816531f", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking lifeguard v0.6.1
[INFO] [stderr]     Checking assert_float_eq v1.1.3
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling smallmap v1.4.2
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling enum_dispatch v0.3.13
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking pickleback v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `remaining_slice` and `is_empty` are never used
[INFO] [stdout]   --> src/cursor.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub(crate) trait CursorExtras {
[INFO] [stdout]    |                  ------------ methods in this trait
[INFO] [stdout] 53 |     fn remaining(&self) -> u64;
[INFO] [stdout] 54 |     fn remaining_slice(&self) -> &[u8];
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 55 |     fn is_empty(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `remaining_slice` and `is_empty` are never used
[INFO] [stdout]   --> src/cursor.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub(crate) trait CursorExtras {
[INFO] [stdout]    |                  ------------ methods in this trait
[INFO] [stdout] 53 |     fn remaining(&self) -> u64;
[INFO] [stdout] 54 |     fn remaining_slice(&self) -> &[u8];
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 55 |     fn is_empty(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.69s
[INFO] running `Command { std: "docker" "inspect" "7d8f22b3b77e65453ebd64d90a2a7d74fc24ad5b7ac54f2c6729bcf37816531f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d8f22b3b77e65453ebd64d90a2a7d74fc24ad5b7ac54f2c6729bcf37816531f", kill_on_drop: false }`
[INFO] [stdout] 7d8f22b3b77e65453ebd64d90a2a7d74fc24ad5b7ac54f2c6729bcf37816531f