[INFO] fetching crate probminhash 0.1.10...
[INFO] checking probminhash-0.1.10 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate probminhash 0.1.10 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate probminhash 0.1.10 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate probminhash 0.1.10
[INFO] finished tweaking crates.io crate probminhash 0.1.10
[INFO] tweaked toml for crates.io crate probminhash 0.1.10 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 109 packages
[INFO] [stderr]       Adding argmin v0.8.1 (latest: v0.10.0)
[INFO] [stderr]       Adding argmin-math v0.3.0 (latest: v0.4.0)
[INFO] [stderr]       Adding env_logger v0.10.2 (latest: v0.11.3)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slog-json v2.6.1
[INFO] [stderr]   Downloaded murmur3 v0.5.2
[INFO] [stderr]   Downloaded katexit v0.1.4
[INFO] [stderr]   Downloaded wyhash v0.5.0
[INFO] [stderr]   Downloaded argmin-math v0.3.0
[INFO] [stderr]   Downloaded argmin v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 582758319e306dec2d07d52735c78070b7af071d0ef0a7f413d0558f321db3af
[INFO] running `Command { std: "docker" "start" "-a" "582758319e306dec2d07d52735c78070b7af071d0ef0a7f413d0558f321db3af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "582758319e306dec2d07d52735c78070b7af071d0ef0a7f413d0558f321db3af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "582758319e306dec2d07d52735c78070b7af071d0ef0a7f413d0558f321db3af", kill_on_drop: false }`
[INFO] [stdout] 582758319e306dec2d07d52735c78070b7af071d0ef0a7f413d0558f321db3af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5200d5ac3b6faeb13847d2c70b0fb886eca1d92c86a9aa63498062438d830dfa
[INFO] running `Command { std: "docker" "start" "-a" "5200d5ac3b6faeb13847d2c70b0fb886eca1d92c86a9aa63498062438d830dfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-bigint v0.4.4
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[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling katexit v0.1.4
[INFO] [stderr]     Checking murmur3 v0.5.2
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking slog-async v2.8.0
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[INFO] [stderr]     Checking probminhash v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]   --> src/probminhasher/probminhash2.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 | use rand::distributions::{Distribution};
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout] 13 | use rand_xoshiro::Xoshiro256PlusPlus;
[INFO] [stdout] 14 | use rand::prelude::*;
[INFO] [stdout]    |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]   --> src/probminhasher/probminhash3.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use num;
[INFO] [stdout]    |     ^^^ the item `num` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]   --> src/probminhasher/probminhash3.rs:19:27
[INFO] [stdout]    |
[INFO] [stdout] 19 | use rand::distributions::{Distribution,Uniform};
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout] 20 | use rand::prelude::*;
[INFO] [stdout]    |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]   --> src/probminhasher/probminhash3sha.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use num;
[INFO] [stdout]    |     ^^^ the item `num` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]   --> src/probminhasher/probminhash3sha.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 | use rand::distributions::{Distribution,Uniform};
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout] 31 | use rand::prelude::*;
[INFO] [stdout]    |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]  --> src/exp01.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::distributions::{Distribution,Uniform};
[INFO] [stdout]   |                           ^^^^^^^^^^^^
[INFO] [stdout] 4 | use rand::prelude::*;
[INFO] [stdout]   |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]    --> src/maxvaluetrack.rs:153:27
[INFO] [stdout]     |
[INFO] [stdout] 151 | use rand::prelude::*;
[INFO] [stdout]     |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 152 | use rand_xoshiro::Xoshiro256PlusPlus;
[INFO] [stdout] 153 | use rand::distributions::{Distribution,Uniform};
[INFO] [stdout]     |                           ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]   --> src/probminhasher/probminhash2.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 | use rand::distributions::{Distribution};
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout] 13 | use rand_xoshiro::Xoshiro256PlusPlus;
[INFO] [stdout] 14 | use rand::prelude::*;
[INFO] [stdout]    |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]   --> src/probminhasher/probminhash3.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use num;
[INFO] [stdout]    |     ^^^ the item `num` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]   --> src/probminhasher/probminhash3.rs:19:27
[INFO] [stdout]    |
[INFO] [stdout] 19 | use rand::distributions::{Distribution,Uniform};
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout] 20 | use rand::prelude::*;
[INFO] [stdout]    |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IndexMap` is imported redundantly
[INFO] [stdout]    --> src/probminhasher/probminhash3.rs:373:5
[INFO] [stdout]     |
[INFO] [stdout] 373 | use indexmap::IndexMap;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 384 | use super::*;
[INFO] [stdout]     |     -------- the item `IndexMap` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]   --> src/probminhasher/probminhash3sha.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use num;
[INFO] [stdout]    |     ^^^ the item `num` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]   --> src/probminhasher/probminhash3sha.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 | use rand::distributions::{Distribution,Uniform};
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout] 31 | use rand::prelude::*;
[INFO] [stdout]    |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IndexMap` is imported redundantly
[INFO] [stdout]    --> src/probminhasher/probminhash3sha.rs:268:16
[INFO] [stdout]     |
[INFO] [stdout] 268 | use indexmap::{IndexMap};
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 279 | use super::*;
[INFO] [stdout]     |     -------- the item `IndexMap` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]  --> src/exp01.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::distributions::{Distribution,Uniform};
[INFO] [stdout]   |                           ^^^^^^^^^^^^
[INFO] [stdout] 4 | use rand::prelude::*;
[INFO] [stdout]   |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]   --> src/exp01.rs:71:27
[INFO] [stdout]    |
[INFO] [stdout] 69 | use rand::prelude::*;
[INFO] [stdout]    |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 70 | use rand_xoshiro::Xoshiro256PlusPlus;
[INFO] [stdout] 71 | use rand::distributions::{Distribution};
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.30s
[INFO] running `Command { std: "docker" "inspect" "5200d5ac3b6faeb13847d2c70b0fb886eca1d92c86a9aa63498062438d830dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5200d5ac3b6faeb13847d2c70b0fb886eca1d92c86a9aa63498062438d830dfa", kill_on_drop: false }`
[INFO] [stdout] 5200d5ac3b6faeb13847d2c70b0fb886eca1d92c86a9aa63498062438d830dfa