[INFO] fetching crate redis 0.23.3...
[INFO] checking redis-0.23.3 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate redis 0.23.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate redis 0.23.3 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 redis 0.23.3
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate redis 0.23.3
[INFO] tweaked toml for crates.io crate redis 0.23.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate redis 0.23.3 already has a lockfile, it will not be regenerated
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crc16 v0.4.0
[INFO] [stderr]   Downloaded futures-rustls v0.24.0
[INFO] [stderr]   Downloaded partial-io v0.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0bed7be43f511f3f040100cc5e91026d45439c174051d5f2b6b6f61f6151273f
[INFO] running `Command { std: "docker" "start" "-a" "0bed7be43f511f3f040100cc5e91026d45439c174051d5f2b6b6f61f6151273f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bed7be43f511f3f040100cc5e91026d45439c174051d5f2b6b6f61f6151273f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bed7be43f511f3f040100cc5e91026d45439c174051d5f2b6b6f61f6151273f", kill_on_drop: false }`
[INFO] [stdout] 0bed7be43f511f3f040100cc5e91026d45439c174051d5f2b6b6f61f6151273f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7b107f40757e218dbfb36feb6dac2277c7149914a9cb082cd1c620b3296af55e
[INFO] running `Command { std: "docker" "start" "-a" "7b107f40757e218dbfb36feb6dac2277c7149914a9cb082cd1c620b3296af55e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling serde v1.0.177
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.177
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking either v1.9.0
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[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]     Checking os_str_bytes v6.5.1
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[INFO] [stderr]     Checking plotters-svg v0.3.5
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[INFO] [stderr]     Checking linux-raw-sys v0.3.8
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[INFO] [stderr]     Checking regex-automata v0.3.3
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[INFO] [stderr]     Checking anes v0.1.6
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[INFO] [stderr]     Checking fastrand v1.9.0
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[INFO] [stderr]     Checking assert_approx_eq v1.1.0
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[INFO] [stderr]     Checking criterion-plot v0.5.0
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[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking ciborium v0.2.1
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[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stderr]     Checking redis v0.23.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/types.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/types.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking partial-io v0.5.4
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stdout] warning: the item `redis` is imported redundantly
[INFO] [stdout]  --> examples/basic.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use redis::{self, transaction, Commands};
[INFO] [stdout]   |             ^^^^ the item `redis` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/types.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/types.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.34s
[INFO] running `Command { std: "docker" "inspect" "7b107f40757e218dbfb36feb6dac2277c7149914a9cb082cd1c620b3296af55e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b107f40757e218dbfb36feb6dac2277c7149914a9cb082cd1c620b3296af55e", kill_on_drop: false }`
[INFO] [stdout] 7b107f40757e218dbfb36feb6dac2277c7149914a9cb082cd1c620b3296af55e