[INFO] fetching crate abbrev-tree 0.1.1...
[INFO] testing abbrev-tree-0.1.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate abbrev-tree 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate abbrev-tree 0.1.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate abbrev-tree 0.1.1
[INFO] finished tweaking crates.io crate abbrev-tree 0.1.1
[INFO] tweaked toml for crates.io crate abbrev-tree 0.1.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0841e4a836f793eb4142b628c4e19f7a284821b6fd5e5e10201ffda910e7418f
[INFO] running `Command { std: "docker" "start" "-a" "0841e4a836f793eb4142b628c4e19f7a284821b6fd5e5e10201ffda910e7418f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0841e4a836f793eb4142b628c4e19f7a284821b6fd5e5e10201ffda910e7418f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0841e4a836f793eb4142b628c4e19f7a284821b6fd5e5e10201ffda910e7418f", kill_on_drop: false }`
[INFO] [stdout] 0841e4a836f793eb4142b628c4e19f7a284821b6fd5e5e10201ffda910e7418f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 83822af26e3ca92e6df5f0c4cd3ddf88c8d6ac0b9b41ccc740a6c4abdd416b43
[INFO] running `Command { std: "docker" "start" "-a" "83822af26e3ca92e6df5f0c4cd3ddf88c8d6ac0b9b41ccc740a6c4abdd416b43", kill_on_drop: false }`
[INFO] [stderr]    Compiling abbrev-tree v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "83822af26e3ca92e6df5f0c4cd3ddf88c8d6ac0b9b41ccc740a6c4abdd416b43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83822af26e3ca92e6df5f0c4cd3ddf88c8d6ac0b9b41ccc740a6c4abdd416b43", kill_on_drop: false }`
[INFO] [stdout] 83822af26e3ca92e6df5f0c4cd3ddf88c8d6ac0b9b41ccc740a6c4abdd416b43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa0f8d217504f10a37516dcc14e6c1c9cc1769d5db0e6d428ddeac035e4a4864
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fa0f8d217504f10a37516dcc14e6c1c9cc1769d5db0e6d428ddeac035e4a4864", kill_on_drop: false }`
[INFO] [stderr]    Compiling abbrev-tree v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "fa0f8d217504f10a37516dcc14e6c1c9cc1769d5db0e6d428ddeac035e4a4864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa0f8d217504f10a37516dcc14e6c1c9cc1769d5db0e6d428ddeac035e4a4864", kill_on_drop: false }`
[INFO] [stdout] fa0f8d217504f10a37516dcc14e6c1c9cc1769d5db0e6d428ddeac035e4a4864
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 629d5b3f1c8b78b195152b0e37e68fc739f6ad82b80d952034e395a535ab4e1c
[INFO] running `Command { std: "docker" "start" "-a" "629d5b3f1c8b78b195152b0e37e68fc739f6ad82b80d952034e395a535ab4e1c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/abbrev_tree-30d6a34832c6b75e
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dump_tree-67060f15bd2dcf6e
[INFO] [stdout] test test_common_prefix_length ... ok
[INFO] [stderr]    Doc-tests abbrev-tree
[INFO] [stdout] test test_abbrev_tree ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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] [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" "629d5b3f1c8b78b195152b0e37e68fc739f6ad82b80d952034e395a535ab4e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "629d5b3f1c8b78b195152b0e37e68fc739f6ad82b80d952034e395a535ab4e1c", kill_on_drop: false }`
[INFO] [stdout] 629d5b3f1c8b78b195152b0e37e68fc739f6ad82b80d952034e395a535ab4e1c