[INFO] fetching crate treez 1.6.0...
[INFO] checking treez-1.6.0 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate treez 1.6.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate treez 1.6.0 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate treez 1.6.0
[INFO] finished tweaking crates.io crate treez 1.6.0
[INFO] tweaked toml for crates.io crate treez 1.6.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 123 packages to latest compatible versions
[INFO] [stderr]       Adding arrayvec v0.4.12 (latest: v0.7.4)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding cloudabi v0.0.3 (latest: v0.1.0)
[INFO] [stderr]       Adding criterion v0.3.6 (latest: v0.5.1)
[INFO] [stderr]       Adding criterion-plot v0.4.5 (latest: v0.5.0)
[INFO] [stderr]       Adding crossbeam v0.4.1 (latest: v0.8.4)
[INFO] [stderr]       Adding crossbeam-channel v0.2.6 (latest: v0.5.13)
[INFO] [stderr]       Adding crossbeam-deque v0.5.2 (latest: v0.8.5)
[INFO] [stderr]       Adding crossbeam-epoch v0.5.2 (latest: v0.9.18)
[INFO] [stderr]       Adding crossbeam-epoch v0.6.1 (latest: v0.9.18)
[INFO] [stderr]       Adding crossbeam-utils v0.5.0 (latest: v0.8.20)
[INFO] [stderr]       Adding crossbeam-utils v0.6.6 (latest: v0.8.20)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.15)
[INFO] [stderr]       Adding half v1.8.3 (latest: v2.4.1)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] [stderr]       Adding lock_api v0.1.5 (latest: v0.4.12)
[INFO] [stderr]       Adding mazth v0.0.0 (latest: v0.6.0)
[INFO] [stderr]       Adding memoffset v0.2.1 (latest: v0.9.1)
[INFO] [stderr]       Adding num v0.1.42 (latest: v0.4.3)
[INFO] [stderr]       Adding num-bigint v0.1.44 (latest: v0.4.5)
[INFO] [stderr]       Adding num-complex v0.1.43 (latest: v0.4.6)
[INFO] [stderr]       Adding num-rational v0.1.42 (latest: v0.4.2)
[INFO] [stderr]       Adding parking_lot v0.6.4 (latest: v0.12.3)
[INFO] [stderr]       Adding parking_lot_core v0.3.1 (latest: v0.9.10)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.5.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding rustc_version v0.2.3 (latest: v0.4.0)
[INFO] [stderr]       Adding scopeguard v0.3.3 (latest: v1.2.0)
[INFO] [stderr]       Adding semver v0.9.0 (latest: v1.0.23)
[INFO] [stderr]       Adding semver-parser v0.7.0 (latest: v0.10.2)
[INFO] [stderr]       Adding smallvec v0.6.14 (latest: v1.13.2)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.56.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-utils v0.5.0
[INFO] [stderr]   Downloaded crossbeam v0.4.1
[INFO] [stderr]   Downloaded parking_lot v0.6.4
[INFO] [stderr]   Downloaded crossbeam-epoch v0.5.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.6.1
[INFO] [stderr]   Downloaded parking_lot_core v0.3.1
[INFO] [stderr]   Downloaded crossbeam-deque v0.5.2
[INFO] [stderr]   Downloaded crossbeam-channel v0.2.6
[INFO] [stderr]   Downloaded mazth v0.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4fc1813e4ea275d5f37fbe16f3d714f76eef6081a288443661eed9af30fa9a2
[INFO] running `Command { std: "docker" "start" "-a" "e4fc1813e4ea275d5f37fbe16f3d714f76eef6081a288443661eed9af30fa9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4fc1813e4ea275d5f37fbe16f3d714f76eef6081a288443661eed9af30fa9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4fc1813e4ea275d5f37fbe16f3d714f76eef6081a288443661eed9af30fa9a2", kill_on_drop: false }`
[INFO] [stdout] e4fc1813e4ea275d5f37fbe16f3d714f76eef6081a288443661eed9af30fa9a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f0c26a8c74e083461c25bfd6aad4f97063825bdaac7054ae15264820d8349b4
[INFO] running `Command { std: "docker" "start" "-a" "9f0c26a8c74e083461c25bfd6aad4f97063825bdaac7054ae15264820d8349b4", kill_on_drop: false }`
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking plotters v0.3.6
[INFO] [stderr]     Checking mazth v0.0.0
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking treez v1.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `self::rand::distributions::IndependentSample`, `self::rand::distributions::Range`
[INFO] [stdout]  --> benches/bench_rb.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | use self::rand::distributions::{IndependentSample, Range};
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^^  ^^^^^ no `Range` in `distributions`
[INFO] [stdout]   |                                 |
[INFO] [stdout]   |                                 no `IndependentSample` in `distributions`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing one of these items instead:
[INFO] [stdout]           num::iter::Range
[INFO] [stdout]           std::collections::btree_map::Range
[INFO] [stdout]           std::collections::btree_set::Range
[INFO] [stdout]           std::ops::Range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `shuffle` found for struct `ThreadRng` in the current scope
[INFO] [stdout]   --> benches/bench_rb.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     rng.shuffle(&mut nums);
[INFO] [stdout]    |         ^^^^^^^ method not found in `ThreadRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `treez` (bench "bench_rb") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9f0c26a8c74e083461c25bfd6aad4f97063825bdaac7054ae15264820d8349b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f0c26a8c74e083461c25bfd6aad4f97063825bdaac7054ae15264820d8349b4", kill_on_drop: false }`
[INFO] [stdout] 9f0c26a8c74e083461c25bfd6aad4f97063825bdaac7054ae15264820d8349b4