[INFO] fetching crate lz4 1.24.0...
[INFO] checking lz4-1.24.0 against master#020bbe46bdf613c0b8211984eaa8e5fe97d6c92d for pr-122960
[INFO] extracting crate lz4 1.24.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate lz4 1.24.0 on toolchain 020bbe46bdf613c0b8211984eaa8e5fe97d6c92d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lz4 1.24.0
[INFO] finished tweaking crates.io crate lz4 1.24.0
[INFO] tweaked toml for crates.io crate lz4 1.24.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate lz4 1.24.0 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" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.16
[INFO] [stderr]   Downloaded which v2.0.1
[INFO] [stderr]   Downloaded getrandom v0.2.5
[INFO] [stderr]   Downloaded addr2line v0.17.0
[INFO] [stderr]   Downloaded miniz_oxide v0.4.4
[INFO] [stderr]   Downloaded object v0.27.1
[INFO] [stderr]   Downloaded lz4-sys v1.9.4
[INFO] [stderr]   Downloaded gimli v0.26.1
[INFO] [stderr]   Downloaded libc v0.2.119
[INFO] [stderr]   Downloaded memchr v2.4.1
[INFO] [stderr]   Downloaded backtrace v0.3.64
[INFO] [stderr]   Downloaded failure v0.1.8
[INFO] [stderr]   Downloaded cc v1.0.73
[INFO] [stderr]   Downloaded rustc-demangle v0.1.21
[INFO] [stderr]   Downloaded docmatic v0.1.2
[INFO] [stderr]   Downloaded wasi v0.10.2+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded rand_core v0.6.3
[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" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c67f6de298b6170cda5a63959478c8c1568676df7eed5831799cdc95b1fd0066
[INFO] running `Command { std: "docker" "start" "-a" "c67f6de298b6170cda5a63959478c8c1568676df7eed5831799cdc95b1fd0066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c67f6de298b6170cda5a63959478c8c1568676df7eed5831799cdc95b1fd0066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c67f6de298b6170cda5a63959478c8c1568676df7eed5831799cdc95b1fd0066", kill_on_drop: false }`
[INFO] [stdout] c67f6de298b6170cda5a63959478c8c1568676df7eed5831799cdc95b1fd0066
[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" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9e774dacf5efc2bdd13cd457587dc6939ae176a306575034104a5038defdff3
[INFO] running `Command { std: "docker" "start" "-a" "a9e774dacf5efc2bdd13cd457587dc6939ae176a306575034104a5038defdff3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling lz4-sys v1.9.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking which v2.0.1
[INFO] [stderr]     Checking docmatic v0.1.2
[INFO] [stderr]     Checking lz4 v1.24.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `docmatic` is imported redundantly
[INFO] [stdout]  --> tests/docmatic.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use docmatic;
[INFO] [stdout]   |     ^^^^^^^^ the item `docmatic` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.21s
[INFO] running `Command { std: "docker" "inspect" "a9e774dacf5efc2bdd13cd457587dc6939ae176a306575034104a5038defdff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9e774dacf5efc2bdd13cd457587dc6939ae176a306575034104a5038defdff3", kill_on_drop: false }`
[INFO] [stdout] a9e774dacf5efc2bdd13cd457587dc6939ae176a306575034104a5038defdff3
[INFO] checking lz4-1.24.0 against try#8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde for pr-122960
[INFO] extracting crate lz4 1.24.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate lz4 1.24.0 on toolchain 8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lz4 1.24.0
[INFO] finished tweaking crates.io crate lz4 1.24.0
[INFO] tweaked toml for crates.io crate lz4 1.24.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate lz4 1.24.0 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" "+8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91cc0e0020fb71a535ce737632565b43910fbcc093f65a73ac7467b5d9244122
[INFO] running `Command { std: "docker" "start" "-a" "91cc0e0020fb71a535ce737632565b43910fbcc093f65a73ac7467b5d9244122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91cc0e0020fb71a535ce737632565b43910fbcc093f65a73ac7467b5d9244122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91cc0e0020fb71a535ce737632565b43910fbcc093f65a73ac7467b5d9244122", kill_on_drop: false }`
[INFO] [stdout] 91cc0e0020fb71a535ce737632565b43910fbcc093f65a73ac7467b5d9244122
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b64288d56be894db697688dc6abedd55bcd5b1d3e4ba04ea224cb54224ebdfc
[INFO] running `Command { std: "docker" "start" "-a" "8b64288d56be894db697688dc6abedd55bcd5b1d3e4ba04ea224cb54224ebdfc", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "8b64288d56be894db697688dc6abedd55bcd5b1d3e4ba04ea224cb54224ebdfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b64288d56be894db697688dc6abedd55bcd5b1d3e4ba04ea224cb54224ebdfc", kill_on_drop: false }`
[INFO] [stdout] 8b64288d56be894db697688dc6abedd55bcd5b1d3e4ba04ea224cb54224ebdfc