[INFO] fetching crate pprof 0.7.0...
[INFO] testing pprof-0.7.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate pprof 0.7.0 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate pprof 0.7.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pprof 0.7.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate pprof 0.7.0
[INFO] tweaked toml for crates.io crate pprof 0.7.0 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate crates.io crate pprof 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded which v4.2.4
[INFO] [stderr]   Downloaded inferno v0.11.0
[INFO] [stderr]   Downloaded symbolic-demangle v8.6.1
[INFO] [stderr]   Downloaded symbolic-common v8.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22787c88f74454f8b7faf90a660cb8eb29dbe13ead77bea7b4584e48d5b1a3b2
[INFO] running `Command { std: "docker" "start" "-a" "22787c88f74454f8b7faf90a660cb8eb29dbe13ead77bea7b4584e48d5b1a3b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22787c88f74454f8b7faf90a660cb8eb29dbe13ead77bea7b4584e48d5b1a3b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22787c88f74454f8b7faf90a660cb8eb29dbe13ead77bea7b4584e48d5b1a3b2", kill_on_drop: false }`
[INFO] [stdout] 22787c88f74454f8b7faf90a660cb8eb29dbe13ead77bea7b4584e48d5b1a3b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f58a417643f88a643dc5a8a91993f1ece7ece47e6a0becc447bb676bc7344e5
[INFO] running `Command { std: "docker" "start" "-a" "1f58a417643f88a643dc5a8a91993f1ece7ece47e6a0becc447bb676bc7344e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling cpp_demangle v0.3.5
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling symbolic-demangle v8.6.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling pprof v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]    Compiling debugid v0.7.3
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling memmap2 v0.5.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling symbolic-common v8.6.1
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.10s
[INFO] running `Command { std: "docker" "inspect" "1f58a417643f88a643dc5a8a91993f1ece7ece47e6a0becc447bb676bc7344e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f58a417643f88a643dc5a8a91993f1ece7ece47e6a0becc447bb676bc7344e5", kill_on_drop: false }`
[INFO] [stdout] 1f58a417643f88a643dc5a8a91993f1ece7ece47e6a0becc447bb676bc7344e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b888b64e8585f42718a394897193b545b53360ba5cac3fb547cbde36c74bdd29
[INFO] running `Command { std: "docker" "start" "-a" "b888b64e8585f42718a394897193b545b53360ba5cac3fb547cbde36c74bdd29", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling pprof v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stdout] error[E0599]: no method named `flamegraph` found for struct `pprof::Report` in the current scope
[INFO] [stdout]   --> examples/backtrace_while_sampling.rs:28:20
[INFO] [stdout]    |
[INFO] [stdout] 28 |             report.flamegraph(file).unwrap();
[INFO] [stdout]    |                    ^^^^^^^^^^ method not found in `pprof::Report`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pprof` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b888b64e8585f42718a394897193b545b53360ba5cac3fb547cbde36c74bdd29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b888b64e8585f42718a394897193b545b53360ba5cac3fb547cbde36c74bdd29", kill_on_drop: false }`
[INFO] [stdout] b888b64e8585f42718a394897193b545b53360ba5cac3fb547cbde36c74bdd29