[INFO] fetching crate ays 0.1.6...
[INFO] checking ays-0.1.6 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate ays 0.1.6 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ays 0.1.6 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ays 0.1.6
[INFO] finished tweaking crates.io crate ays 0.1.6
[INFO] tweaked toml for crates.io crate ays 0.1.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate ays 0.1.6 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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f80cf2e72ac871a5c8cf8288b62e37010df01f0e0ab5006ec3d68d1eb47480cc
[INFO] running `Command { std: "docker" "start" "-a" "f80cf2e72ac871a5c8cf8288b62e37010df01f0e0ab5006ec3d68d1eb47480cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f80cf2e72ac871a5c8cf8288b62e37010df01f0e0ab5006ec3d68d1eb47480cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f80cf2e72ac871a5c8cf8288b62e37010df01f0e0ab5006ec3d68d1eb47480cc", kill_on_drop: false }`
[INFO] [stdout] f80cf2e72ac871a5c8cf8288b62e37010df01f0e0ab5006ec3d68d1eb47480cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a01a92c491fcb262658e6b3731a2765a1e2d2743235c6b43473767afe394b92b
[INFO] running `Command { std: "docker" "start" "-a" "a01a92c491fcb262658e6b3731a2765a1e2d2743235c6b43473767afe394b92b", kill_on_drop: false }`
[INFO] [stderr]     Checking ays v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, prelude::*, BufReader, Write};
[INFO] [stdout]   |                     ----------             ^^^^^
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     the item `Write` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, prelude::*, BufReader, Write};
[INFO] [stdout]   |                     ----------             ^^^^^
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     the item `Write` is already imported here
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "a01a92c491fcb262658e6b3731a2765a1e2d2743235c6b43473767afe394b92b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a01a92c491fcb262658e6b3731a2765a1e2d2743235c6b43473767afe394b92b", kill_on_drop: false }`
[INFO] [stdout] a01a92c491fcb262658e6b3731a2765a1e2d2743235c6b43473767afe394b92b
[INFO] checking ays-0.1.6 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate ays 0.1.6 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate ays 0.1.6 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ays 0.1.6
[INFO] finished tweaking crates.io crate ays 0.1.6
[INFO] tweaked toml for crates.io crate ays 0.1.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate ays 0.1.6 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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fbf214ffa7026242bae02c37a2d8b0c23d63c181263cdf0da6ecef18b238597
[INFO] running `Command { std: "docker" "start" "-a" "7fbf214ffa7026242bae02c37a2d8b0c23d63c181263cdf0da6ecef18b238597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fbf214ffa7026242bae02c37a2d8b0c23d63c181263cdf0da6ecef18b238597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fbf214ffa7026242bae02c37a2d8b0c23d63c181263cdf0da6ecef18b238597", kill_on_drop: false }`
[INFO] [stdout] 7fbf214ffa7026242bae02c37a2d8b0c23d63c181263cdf0da6ecef18b238597
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f3faa4fc134519d29590b0f6dd06eb6dc4f097eceefafc97ab2061a88adeaba
[INFO] running `Command { std: "docker" "start" "-a" "1f3faa4fc134519d29590b0f6dd06eb6dc4f097eceefafc97ab2061a88adeaba", kill_on_drop: false }`
[INFO] [stderr]     Checking ays v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, prelude::*, BufReader, Write};
[INFO] [stdout]   |                     ----------             ^^^^^
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     the item `Write` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, prelude::*, BufReader, Write};
[INFO] [stdout]   |                     ----------             ^^^^^
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     the item `Write` is already imported here
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "1f3faa4fc134519d29590b0f6dd06eb6dc4f097eceefafc97ab2061a88adeaba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f3faa4fc134519d29590b0f6dd06eb6dc4f097eceefafc97ab2061a88adeaba", kill_on_drop: false }`
[INFO] [stdout] 1f3faa4fc134519d29590b0f6dd06eb6dc4f097eceefafc97ab2061a88adeaba
