[INFO] fetching crate vec_mut_scan 0.4.0...
[INFO] testing vec_mut_scan-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate vec_mut_scan 0.4.0 into /workspace/builds/worker-48/source
[INFO] validating manifest of crates.io crate vec_mut_scan 0.4.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vec_mut_scan 0.4.0
[INFO] finished tweaking crates.io crate vec_mut_scan 0.4.0
[INFO] tweaked toml for crates.io crate vec_mut_scan 0.4.0 written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 368646a8930bfd37cafea0d650ef74cafe157a6c37f1bf33ccf58eef58674844
[INFO] running `Command { std: "docker" "start" "-a" "368646a8930bfd37cafea0d650ef74cafe157a6c37f1bf33ccf58eef58674844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "368646a8930bfd37cafea0d650ef74cafe157a6c37f1bf33ccf58eef58674844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "368646a8930bfd37cafea0d650ef74cafe157a6c37f1bf33ccf58eef58674844", kill_on_drop: false }`
[INFO] [stdout] 368646a8930bfd37cafea0d650ef74cafe157a6c37f1bf33ccf58eef58674844
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d25c64c5b701b0583c5257ff73af53a54c8a2ae0b5dcad39459b46cf36651e6
[INFO] running `Command { std: "docker" "start" "-a" "4d25c64c5b701b0583c5257ff73af53a54c8a2ae0b5dcad39459b46cf36651e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling vec_mut_scan v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "4d25c64c5b701b0583c5257ff73af53a54c8a2ae0b5dcad39459b46cf36651e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d25c64c5b701b0583c5257ff73af53a54c8a2ae0b5dcad39459b46cf36651e6", kill_on_drop: false }`
[INFO] [stdout] 4d25c64c5b701b0583c5257ff73af53a54c8a2ae0b5dcad39459b46cf36651e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a240fd673bd69835f89aa8a987b390e1e4e562128c6635841535c764a3fc9ab4
[INFO] running `Command { std: "docker" "start" "-a" "a240fd673bd69835f89aa8a987b390e1e4e562128c6635841535c764a3fc9ab4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling vec_mut_scan v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "a240fd673bd69835f89aa8a987b390e1e4e562128c6635841535c764a3fc9ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a240fd673bd69835f89aa8a987b390e1e4e562128c6635841535c764a3fc9ab4", kill_on_drop: false }`
[INFO] [stdout] a240fd673bd69835f89aa8a987b390e1e4e562128c6635841535c764a3fc9ab4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66c1cb8115172bd0414706fd124979a31e836da9c6a8a5fb71d54f824bf086a0
[INFO] running `Command { std: "docker" "start" "-a" "66c1cb8115172bd0414706fd124979a31e836da9c6a8a5fb71d54f824bf086a0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vec_mut_scan-ce872485223762ab)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::check_item_drops ... ok
[INFO] [stdout] test tests::check_slices_mut ... ok
[INFO] [stdout] test tests::check_slices ... ok
[INFO] [stdout] test tests::drop_after_partial_scan_with_inserts ... ok
[INFO] [stdout] test tests::grow_check_item_drops ... ok
[INFO] [stdout] test tests::grow_check_slices_mut ... ok
[INFO] [stdout] test tests::grow_check_slices_no_insert ... ok
[INFO] [stdout] test tests::insert_after ... ok
[INFO] [stdout] test tests::insert_before ... ok
[INFO] [stdout] test tests::replace_with ... ok
[INFO] [stdout] test tests::replace_with_many_with ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vec_mut_scan
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - VecGrowScan::insert (line 388) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.57s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "66c1cb8115172bd0414706fd124979a31e836da9c6a8a5fb71d54f824bf086a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66c1cb8115172bd0414706fd124979a31e836da9c6a8a5fb71d54f824bf086a0", kill_on_drop: false }`
[INFO] [stdout] 66c1cb8115172bd0414706fd124979a31e836da9c6a8a5fb71d54f824bf086a0