[INFO] fetching crate dfree 0.2.5...
[INFO] testing dfree-0.2.5 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate dfree 0.2.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate dfree 0.2.5 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dfree 0.2.5
[INFO] finished tweaking crates.io crate dfree 0.2.5
[INFO] tweaked toml for crates.io crate dfree 0.2.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate dfree 0.2.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c1a23972114e1176a286c12aacff24327ae14fc2f5cc4d08caf03e3e392a020
[INFO] running `Command { std: "docker" "start" "-a" "4c1a23972114e1176a286c12aacff24327ae14fc2f5cc4d08caf03e3e392a020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c1a23972114e1176a286c12aacff24327ae14fc2f5cc4d08caf03e3e392a020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c1a23972114e1176a286c12aacff24327ae14fc2f5cc4d08caf03e3e392a020", kill_on_drop: false }`
[INFO] [stdout] 4c1a23972114e1176a286c12aacff24327ae14fc2f5cc4d08caf03e3e392a020
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4700b1d8042f57e0d4e0f77037122716a0dde3dff19a32e95bf54a24dcf5b3b
[INFO] running `Command { std: "docker" "start" "-a" "b4700b1d8042f57e0d4e0f77037122716a0dde3dff19a32e95bf54a24dcf5b3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling sysinfo v0.17.5
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling dfree v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.32s
[INFO] running `Command { std: "docker" "inspect" "b4700b1d8042f57e0d4e0f77037122716a0dde3dff19a32e95bf54a24dcf5b3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4700b1d8042f57e0d4e0f77037122716a0dde3dff19a32e95bf54a24dcf5b3b", kill_on_drop: false }`
[INFO] [stdout] b4700b1d8042f57e0d4e0f77037122716a0dde3dff19a32e95bf54a24dcf5b3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7818479247d6a084e31857a1c326263744e879f599d39c6245739e2d365ddc74
[INFO] running `Command { std: "docker" "start" "-a" "7818479247d6a084e31857a1c326263744e879f599d39c6245739e2d365ddc74", kill_on_drop: false }`
[INFO] [stderr]    Compiling dfree v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "7818479247d6a084e31857a1c326263744e879f599d39c6245739e2d365ddc74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7818479247d6a084e31857a1c326263744e879f599d39c6245739e2d365ddc74", kill_on_drop: false }`
[INFO] [stdout] 7818479247d6a084e31857a1c326263744e879f599d39c6245739e2d365ddc74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b1452056b2dc01b87b0c58a2390221f5748725b855a983fd012b0d254871cbe
[INFO] running `Command { std: "docker" "start" "-a" "6b1452056b2dc01b87b0c58a2390221f5748725b855a983fd012b0d254871cbe", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dfree-abc34cae40c998f8)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::b_format_correct ... ok
[INFO] [stdout] test tests::mb_format_correct ... ok
[INFO] [stdout] test tests::gb_format_correct ... ok
[INFO] [stdout] test tests::zero_correct ... ok
[INFO] [stdout] test tests::kb_format_correct ... ok
[INFO] [stdout] test tests::max_correct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6b1452056b2dc01b87b0c58a2390221f5748725b855a983fd012b0d254871cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b1452056b2dc01b87b0c58a2390221f5748725b855a983fd012b0d254871cbe", kill_on_drop: false }`
[INFO] [stdout] 6b1452056b2dc01b87b0c58a2390221f5748725b855a983fd012b0d254871cbe