[INFO] fetching crate dogear 0.5.0...
[INFO] checking dogear-0.5.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate dogear 0.5.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate dogear 0.5.0
[INFO] finished tweaking crates.io crate dogear 0.5.0
[INFO] tweaked toml for crates.io crate dogear 0.5.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dogear 0.5.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.5.13 (available: v0.11.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2db2009fe5ec546fbbf8c4a5c75e3da6e34691358cbb25a30f65c6fbdd86d5a3
[INFO] running `Command { std: "docker" "start" "-a" "2db2009fe5ec546fbbf8c4a5c75e3da6e34691358cbb25a30f65c6fbdd86d5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2db2009fe5ec546fbbf8c4a5c75e3da6e34691358cbb25a30f65c6fbdd86d5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2db2009fe5ec546fbbf8c4a5c75e3da6e34691358cbb25a30f65c6fbdd86d5a3", kill_on_drop: false }`
[INFO] [stdout] 2db2009fe5ec546fbbf8c4a5c75e3da6e34691358cbb25a30f65c6fbdd86d5a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4debe5fec4635d2e09f72e2e69ce3fb3bd7e201f4e10d24a987482451421cfe
[INFO] running `Command { std: "docker" "start" "-a" "e4debe5fec4635d2e09f72e2e69ce3fb3bd7e201f4e10d24a987482451421cfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking regex-syntax v0.8.6
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking smallbitvec v2.6.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking dogear v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stdout] warning: field `merged_guids` is never read
[INFO] [stdout]     --> src/merge.rs:1763:5
[INFO] [stdout]      |
[INFO] [stdout] 1759 | pub struct MergedRoot<'t> {
[INFO] [stdout]      |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1763 |     merged_guids: HashSet<Guid>,
[INFO] [stdout]      |     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `MergedRoot` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stdout] warning: field `merged_guids` is never read
[INFO] [stdout]     --> src/merge.rs:1763:5
[INFO] [stdout]      |
[INFO] [stdout] 1759 | pub struct MergedRoot<'t> {
[INFO] [stdout]      |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1763 |     merged_guids: HashSet<Guid>,
[INFO] [stdout]      |     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `MergedRoot` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.29s
[INFO] running `Command { std: "docker" "inspect" "e4debe5fec4635d2e09f72e2e69ce3fb3bd7e201f4e10d24a987482451421cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4debe5fec4635d2e09f72e2e69ce3fb3bd7e201f4e10d24a987482451421cfe", kill_on_drop: false }`
[INFO] [stdout] e4debe5fec4635d2e09f72e2e69ce3fb3bd7e201f4e10d24a987482451421cfe