[INFO] fetching crate istring 0.3.4...
[INFO] checking istring-0.3.4 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate istring 0.3.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate istring 0.3.4 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate istring 0.3.4
[INFO] finished tweaking crates.io crate istring 0.3.4
[INFO] tweaked toml for crates.io crate istring 0.3.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad5e885de52ad94b84be53007b5199c4c16b6700edfe18f81f71c9e895ad6563
[INFO] running `Command { std: "docker" "start" "-a" "ad5e885de52ad94b84be53007b5199c4c16b6700edfe18f81f71c9e895ad6563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad5e885de52ad94b84be53007b5199c4c16b6700edfe18f81f71c9e895ad6563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad5e885de52ad94b84be53007b5199c4c16b6700edfe18f81f71c9e895ad6563", kill_on_drop: false }`
[INFO] [stdout] ad5e885de52ad94b84be53007b5199c4c16b6700edfe18f81f71c9e895ad6563
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5461d0673da59894612dca859d0889ea6bb46df11cd0cfc46b7dcc9ce216aaa
[INFO] running `Command { std: "docker" "start" "-a" "a5461d0673da59894612dca859d0889ea6bb46df11cd0cfc46b7dcc9ce216aaa", kill_on_drop: false }`
[INFO] [stderr]     Checking istring v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `str::Utf8Error`
[INFO] [stdout]  --> src/istring.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::{fmt, str, convert, str::Utf8Error};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash`
[INFO] [stdout]  --> src/small.rs:1:48
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::{fmt, slice, str, convert, mem, cmp, hash};
[INFO] [stdout]   |                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash`
[INFO] [stdout]  --> src/ibytes.rs:2:43
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::{ptr, mem, slice, convert, ops, hash, cmp, fmt};
[INFO] [stdout]   |                                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `str::Utf8Error`
[INFO] [stdout]  --> src/istring.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::{fmt, str, convert, str::Utf8Error};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash`
[INFO] [stdout]  --> src/small.rs:1:48
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::{fmt, slice, str, convert, mem, cmp, hash};
[INFO] [stdout]   |                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash`
[INFO] [stdout]  --> src/ibytes.rs:2:43
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::{ptr, mem, slice, convert, ops, hash, cmp, fmt};
[INFO] [stdout]   |                                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_CAPACITY` is never used
[INFO] [stdout]   --> src/small.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const MAX_CAPACITY: usize = (1 << 63) - 1;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "a5461d0673da59894612dca859d0889ea6bb46df11cd0cfc46b7dcc9ce216aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5461d0673da59894612dca859d0889ea6bb46df11cd0cfc46b7dcc9ce216aaa", kill_on_drop: false }`
[INFO] [stdout] a5461d0673da59894612dca859d0889ea6bb46df11cd0cfc46b7dcc9ce216aaa
