[INFO] fetching crate mvlogger 0.3.0...
[INFO] checking mvlogger-0.3.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate mvlogger 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate mvlogger 0.3.0 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mvlogger 0.3.0
[INFO] finished tweaking crates.io crate mvlogger 0.3.0
[INFO] tweaked toml for crates.io crate mvlogger 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding mvutils v0.5.7 (latest: v0.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytebuffer v2.3.0
[INFO] [stderr]   Downloaded mvutils v0.5.7
[INFO] [stderr]   Downloaded mvutils-proc-macro v0.4.0
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc8d083e7d5b3cf915f7470a34d6b6e3c75bc2d2c3154f42f254fdebeb3ec75b
[INFO] running `Command { std: "docker" "start" "-a" "dc8d083e7d5b3cf915f7470a34d6b6e3c75bc2d2c3154f42f254fdebeb3ec75b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc8d083e7d5b3cf915f7470a34d6b6e3c75bc2d2c3154f42f254fdebeb3ec75b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc8d083e7d5b3cf915f7470a34d6b6e3c75bc2d2c3154f42f254fdebeb3ec75b", kill_on_drop: false }`
[INFO] [stdout] dc8d083e7d5b3cf915f7470a34d6b6e3c75bc2d2c3154f42f254fdebeb3ec75b
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9830a25868d4217d89f822a9ff930e3925995d15db697eacbf93998ff616577
[INFO] running `Command { std: "docker" "start" "-a" "a9830a25868d4217d89f822a9ff930e3925995d15db697eacbf93998ff616577", kill_on_drop: false }`
[INFO] [stderr]     Checking bytebuffer v2.3.0
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling mvutils-proc-macro v0.4.0
[INFO] [stderr]     Checking mvutils v0.5.7
[INFO] [stderr]     Checking mvlogger v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Log`
[INFO] [stdout]   --> src/lib.rs:44:61
[INFO] [stdout]    |
[INFO] [stdout] 44 |     use log::{debug, error, info, trace, warn, LevelFilter, Log};
[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 2.79s
[INFO] running `Command { std: "docker" "inspect" "a9830a25868d4217d89f822a9ff930e3925995d15db697eacbf93998ff616577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9830a25868d4217d89f822a9ff930e3925995d15db697eacbf93998ff616577", kill_on_drop: false }`
[INFO] [stdout] a9830a25868d4217d89f822a9ff930e3925995d15db697eacbf93998ff616577
[INFO] checking mvlogger-0.3.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate mvlogger 0.3.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate mvlogger 0.3.0 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mvlogger 0.3.0
[INFO] finished tweaking crates.io crate mvlogger 0.3.0
[INFO] tweaked toml for crates.io crate mvlogger 0.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding mvutils v0.5.7 (latest: v0.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce2c63bcb669fb1b2c757539c2619ceae9164da4020850d35b404e48d3f359d2
[INFO] running `Command { std: "docker" "start" "-a" "ce2c63bcb669fb1b2c757539c2619ceae9164da4020850d35b404e48d3f359d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce2c63bcb669fb1b2c757539c2619ceae9164da4020850d35b404e48d3f359d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce2c63bcb669fb1b2c757539c2619ceae9164da4020850d35b404e48d3f359d2", kill_on_drop: false }`
[INFO] [stdout] ce2c63bcb669fb1b2c757539c2619ceae9164da4020850d35b404e48d3f359d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 657c48c0e3b40baf4f2fce63ff46c77b60d59eca3ee0dfab2033f6cb40f0d077
[INFO] running `Command { std: "docker" "start" "-a" "657c48c0e3b40baf4f2fce63ff46c77b60d59eca3ee0dfab2033f6cb40f0d077", kill_on_drop: false }`
[INFO] [stderr]     Checking bytebuffer v2.3.0
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling mvutils-proc-macro v0.4.0
[INFO] [stderr]     Checking mvutils v0.5.7
[INFO] [stderr]     Checking mvlogger v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Log`
[INFO] [stdout]   --> src/lib.rs:44:61
[INFO] [stdout]    |
[INFO] [stdout] 44 |     use log::{debug, error, info, trace, warn, LevelFilter, Log};
[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 2.70s
[INFO] running `Command { std: "docker" "inspect" "657c48c0e3b40baf4f2fce63ff46c77b60d59eca3ee0dfab2033f6cb40f0d077", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "657c48c0e3b40baf4f2fce63ff46c77b60d59eca3ee0dfab2033f6cb40f0d077", kill_on_drop: false }`
[INFO] [stdout] 657c48c0e3b40baf4f2fce63ff46c77b60d59eca3ee0dfab2033f6cb40f0d077