[INFO] fetching crate libarc 0.1.0...
[INFO] testing libarc-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate libarc 0.1.0 into /workspace/builds/worker-113/source
[INFO] validating manifest of crates.io crate libarc 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libarc 0.1.0
[INFO] finished tweaking crates.io crate libarc 0.1.0
[INFO] tweaked toml for crates.io crate libarc 0.1.0 written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stdweb v0.4.20
[INFO] [stderr]   Downloaded discard v1.0.4
[INFO] [stderr]   Downloaded base-x v0.2.8
[INFO] [stderr]   Downloaded stdweb-internal-macros v0.2.9
[INFO] [stderr]   Downloaded stdweb-internal-runtime v0.1.5
[INFO] [stderr]   Downloaded stdweb-derive v0.5.3
[INFO] [stderr]   Downloaded tokio-async v0.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4baa393b3253b0bd09cfa37b549d11327874e146eff5f52dc798f3d96b4a481
[INFO] running `Command { std: "docker" "start" "-a" "b4baa393b3253b0bd09cfa37b549d11327874e146eff5f52dc798f3d96b4a481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4baa393b3253b0bd09cfa37b549d11327874e146eff5f52dc798f3d96b4a481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4baa393b3253b0bd09cfa37b549d11327874e146eff5f52dc798f3d96b4a481", kill_on_drop: false }`
[INFO] [stdout] b4baa393b3253b0bd09cfa37b549d11327874e146eff5f52dc798f3d96b4a481
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7ee25ae4dec5bb7f06e464a3c1215bd09b08c04585d2d4ad9f1c917a4c52fc8
[INFO] running `Command { std: "docker" "start" "-a" "e7ee25ae4dec5bb7f06e464a3c1215bd09b08c04585d2d4ad9f1c917a4c52fc8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling slab v0.4.6
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling sha1_smol v1.0.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling httparse v1.7.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.5
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling base-x v0.2.8
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling tokio-async v0.0.0
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling tracing-core v0.1.25
[INFO] [stderr]    Compiling stdweb v0.4.20
[INFO] [stderr]    Compiling sha1 v0.6.1
[INFO] [stderr]    Compiling http v0.2.6
[INFO] [stderr]    Compiling tracing v0.1.33
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling pin-project v1.0.10
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling stdweb-derive v0.5.3
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.9
[INFO] [stderr]    Compiling hyper v0.13.10
[INFO] [stderr]    Compiling libarc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.64s
[INFO] running `Command { std: "docker" "inspect" "e7ee25ae4dec5bb7f06e464a3c1215bd09b08c04585d2d4ad9f1c917a4c52fc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ee25ae4dec5bb7f06e464a3c1215bd09b08c04585d2d4ad9f1c917a4c52fc8", kill_on_drop: false }`
[INFO] [stdout] e7ee25ae4dec5bb7f06e464a3c1215bd09b08c04585d2d4ad9f1c917a4c52fc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94a109d35e1fcbfeec9e5cb2bb7c76a5e344e9f98020df2812263df3c30aaac2
[INFO] running `Command { std: "docker" "start" "-a" "94a109d35e1fcbfeec9e5cb2bb7c76a5e344e9f98020df2812263df3c30aaac2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libarc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "94a109d35e1fcbfeec9e5cb2bb7c76a5e344e9f98020df2812263df3c30aaac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94a109d35e1fcbfeec9e5cb2bb7c76a5e344e9f98020df2812263df3c30aaac2", kill_on_drop: false }`
[INFO] [stdout] 94a109d35e1fcbfeec9e5cb2bb7c76a5e344e9f98020df2812263df3c30aaac2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b6fdce99ac6bbc4d13bd52c763a9e05ed3a0e2338b61e961c785b88d3b0fa2e5
[INFO] running `Command { std: "docker" "start" "-a" "b6fdce99ac6bbc4d13bd52c763a9e05ed3a0e2338b61e961c785b88d3b0fa2e5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arc-c8d873a4278c22ff)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b6fdce99ac6bbc4d13bd52c763a9e05ed3a0e2338b61e961c785b88d3b0fa2e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6fdce99ac6bbc4d13bd52c763a9e05ed3a0e2338b61e961c785b88d3b0fa2e5", kill_on_drop: false }`
[INFO] [stdout] b6fdce99ac6bbc4d13bd52c763a9e05ed3a0e2338b61e961c785b88d3b0fa2e5