[INFO] fetching crate xcf 0.3.0...
[INFO] testing xcf-0.3.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate xcf 0.3.0 into /workspace/builds/worker-81/source
[INFO] validating manifest of crates.io crate xcf 0.3.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xcf 0.3.0
[INFO] finished tweaking crates.io crate xcf 0.3.0
[INFO] tweaked toml for crates.io crate xcf 0.3.0 written to /workspace/builds/worker-81/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62fd62d6f9d159da4878d6fc536ce4965b612b50edfccc449c6f4c8e72228d78
[INFO] running `Command { std: "docker" "start" "-a" "62fd62d6f9d159da4878d6fc536ce4965b612b50edfccc449c6f4c8e72228d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62fd62d6f9d159da4878d6fc536ce4965b612b50edfccc449c6f4c8e72228d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62fd62d6f9d159da4878d6fc536ce4965b612b50edfccc449c6f4c8e72228d78", kill_on_drop: false }`
[INFO] [stdout] 62fd62d6f9d159da4878d6fc536ce4965b612b50edfccc449c6f4c8e72228d78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d36ec329ff0f217bc11fee39fc746bf3d8a8e7a8eeaf4dfa171eb9e87b3cec44
[INFO] running `Command { std: "docker" "start" "-a" "d36ec329ff0f217bc11fee39fc746bf3d8a8e7a8eeaf4dfa171eb9e87b3cec44", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling derive-error v0.0.4
[INFO] [stderr]    Compiling xcf v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `guess_size`
[INFO] [stdout]    --> src/lib.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 |     fn guess_size(&self) -> usize {
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.76s
[INFO] running `Command { std: "docker" "inspect" "d36ec329ff0f217bc11fee39fc746bf3d8a8e7a8eeaf4dfa171eb9e87b3cec44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d36ec329ff0f217bc11fee39fc746bf3d8a8e7a8eeaf4dfa171eb9e87b3cec44", kill_on_drop: false }`
[INFO] [stdout] d36ec329ff0f217bc11fee39fc746bf3d8a8e7a8eeaf4dfa171eb9e87b3cec44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9222e100dc397e872604f7dad665afabd2572ff98f471b0869adbdc60b2ceed
[INFO] running `Command { std: "docker" "start" "-a" "e9222e100dc397e872604f7dad665afabd2572ff98f471b0869adbdc60b2ceed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling xcf v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `guess_size`
[INFO] [stdout]    --> src/lib.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 |     fn guess_size(&self) -> usize {
[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: associated function is never used: `guess_size`
[INFO] [stdout]    --> src/lib.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 |     fn guess_size(&self) -> usize {
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/xcf-3d94c2fced7c9559)
[INFO] running `Command { std: "docker" "inspect" "e9222e100dc397e872604f7dad665afabd2572ff98f471b0869adbdc60b2ceed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9222e100dc397e872604f7dad665afabd2572ff98f471b0869adbdc60b2ceed", kill_on_drop: false }`
[INFO] [stdout] e9222e100dc397e872604f7dad665afabd2572ff98f471b0869adbdc60b2ceed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1914abda8c87776504d8178842d72cdad394f1cb399ace49538f13c9f49ffbde
[INFO] running `Command { std: "docker" "start" "-a" "1914abda8c87776504d8178842d72cdad394f1cb399ace49538f13c9f49ffbde", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `guess_size`
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:185:8
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 185 |     fn guess_size(&self) -> usize {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `xcf` (lib) generated 1 warning
[INFO] [stderr] warning: `xcf` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/xcf-3d94c2fced7c9559)
[INFO] [stderr]    Doc-tests xcf
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1914abda8c87776504d8178842d72cdad394f1cb399ace49538f13c9f49ffbde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1914abda8c87776504d8178842d72cdad394f1cb399ace49538f13c9f49ffbde", kill_on_drop: false }`
[INFO] [stdout] 1914abda8c87776504d8178842d72cdad394f1cb399ace49538f13c9f49ffbde