[INFO] fetching crate as-is 0.0.29...
[INFO] checking as-is-0.0.29 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate as-is 0.0.29 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate as-is 0.0.29 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate as-is 0.0.29
[INFO] finished tweaking crates.io crate as-is 0.0.29
[INFO] tweaked toml for crates.io crate as-is 0.0.29 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ref-ops v0.2.5
[INFO] [stderr]   Downloaded char-buf v0.1.2
[INFO] [stderr]   Downloaded siphasher v1.0.1
[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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7024077ed3cfc3cdc3d5a2f96a9fe958b948e2b8f4428f843e9bf783df7c969
[INFO] running `Command { std: "docker" "start" "-a" "b7024077ed3cfc3cdc3d5a2f96a9fe958b948e2b8f4428f843e9bf783df7c969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7024077ed3cfc3cdc3d5a2f96a9fe958b948e2b8f4428f843e9bf783df7c969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7024077ed3cfc3cdc3d5a2f96a9fe958b948e2b8f4428f843e9bf783df7c969", kill_on_drop: false }`
[INFO] [stdout] b7024077ed3cfc3cdc3d5a2f96a9fe958b948e2b8f4428f843e9bf783df7c969
[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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5bd05af34429ef64930a485924559c9968c7c27873509ff349544258afb9237
[INFO] running `Command { std: "docker" "start" "-a" "e5bd05af34429ef64930a485924559c9968c7c27873509ff349544258afb9237", kill_on_drop: false }`
[INFO] [stderr]     Checking ref-ops v0.2.5
[INFO] [stderr]     Checking char-buf v0.1.2
[INFO] [stderr]     Checking siphasher v1.0.1
[INFO] [stderr]     Checking as-is v0.0.29 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Cow` is imported redundantly
[INFO] [stdout]  --> src/tests.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `Cow` is already imported here
[INFO] [stdout] 2 | #[cfg(feature = "alloc")]
[INFO] [stdout] 3 | use alloc::{borrow::Cow, vec};
[INFO] [stdout]   |             ^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "e5bd05af34429ef64930a485924559c9968c7c27873509ff349544258afb9237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5bd05af34429ef64930a485924559c9968c7c27873509ff349544258afb9237", kill_on_drop: false }`
[INFO] [stdout] e5bd05af34429ef64930a485924559c9968c7c27873509ff349544258afb9237
[INFO] checking as-is-0.0.29 against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] extracting crate as-is 0.0.29 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate as-is 0.0.29 on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate as-is 0.0.29
[INFO] finished tweaking crates.io crate as-is 0.0.29
[INFO] tweaked toml for crates.io crate as-is 0.0.29 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd41cd202f8387359473a052b17be75ac3ea2f478fa6e4e8c38c3b2618f6f4e4
[INFO] running `Command { std: "docker" "start" "-a" "cd41cd202f8387359473a052b17be75ac3ea2f478fa6e4e8c38c3b2618f6f4e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd41cd202f8387359473a052b17be75ac3ea2f478fa6e4e8c38c3b2618f6f4e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd41cd202f8387359473a052b17be75ac3ea2f478fa6e4e8c38c3b2618f6f4e4", kill_on_drop: false }`
[INFO] [stdout] cd41cd202f8387359473a052b17be75ac3ea2f478fa6e4e8c38c3b2618f6f4e4
[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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be09ca16dd3185df90661d240d40077f9282c4e205a1e1a2d0f5fe259b1f16a1
[INFO] running `Command { std: "docker" "start" "-a" "be09ca16dd3185df90661d240d40077f9282c4e205a1e1a2d0f5fe259b1f16a1", kill_on_drop: false }`
[INFO] [stderr]     Checking ref-ops v0.2.5
[INFO] [stderr]     Checking siphasher v1.0.1
[INFO] [stderr]     Checking char-buf v0.1.2
[INFO] [stderr]     Checking as-is v0.0.29 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Cow` is imported redundantly
[INFO] [stdout]  --> src/tests.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `Cow` is already imported here
[INFO] [stdout] 2 | #[cfg(feature = "alloc")]
[INFO] [stdout] 3 | use alloc::{borrow::Cow, vec};
[INFO] [stdout]   |             ^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "be09ca16dd3185df90661d240d40077f9282c4e205a1e1a2d0f5fe259b1f16a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be09ca16dd3185df90661d240d40077f9282c4e205a1e1a2d0f5fe259b1f16a1", kill_on_drop: false }`
[INFO] [stdout] be09ca16dd3185df90661d240d40077f9282c4e205a1e1a2d0f5fe259b1f16a1
