[INFO] fetching crate pickleback 0.1.0...
[INFO] checking pickleback-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate pickleback 0.1.0 into /workspace/builds/worker-0-tc2/source
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pickleback 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 44 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.10.2 (available: v0.11.8)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3c7571025bee70ea1d28f96f08fe1bf358fd2a85b0b62f2146f1bf802bb7dca
[INFO] running `Command { std: "docker" "start" "-a" "e3c7571025bee70ea1d28f96f08fe1bf358fd2a85b0b62f2146f1bf802bb7dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3c7571025bee70ea1d28f96f08fe1bf358fd2a85b0b62f2146f1bf802bb7dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3c7571025bee70ea1d28f96f08fe1bf358fd2a85b0b62f2146f1bf802bb7dca", kill_on_drop: false }`
[INFO] [stdout] e3c7571025bee70ea1d28f96f08fe1bf358fd2a85b0b62f2146f1bf802bb7dca
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93fb714c894e5bb936e937d536710c964192d300811e543670f9eb85ad63f4f0
[INFO] running `Command { std: "docker" "start" "-a" "93fb714c894e5bb936e937d536710c964192d300811e543670f9eb85ad63f4f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking humantime v2.2.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking lifeguard v0.6.1
[INFO] [stderr]     Checking assert_float_eq v1.1.4
[INFO] [stderr]     Checking byteorder v1.5.0
[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]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling enum_dispatch v0.3.13
[INFO] [stderr]     Checking env_logger v0.10.2
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.56s
[INFO] running `Command { std: "docker" "inspect" "93fb714c894e5bb936e937d536710c964192d300811e543670f9eb85ad63f4f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93fb714c894e5bb936e937d536710c964192d300811e543670f9eb85ad63f4f0", kill_on_drop: false }`
[INFO] [stdout] 93fb714c894e5bb936e937d536710c964192d300811e543670f9eb85ad63f4f0