[INFO] fetching crate rustc_version 0.3.0...
[INFO] testing rustc_version-0.3.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate rustc_version 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rustc_version 0.3.0 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 rustc_version 0.3.0
[INFO] finished tweaking crates.io crate rustc_version 0.3.0
[INFO] tweaked toml for crates.io crate rustc_version 0.3.0 written to /workspace/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d26e844001658213227e6212baff4e00db56f96b152efa706d503c9776ae5a9d
[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" "d26e844001658213227e6212baff4e00db56f96b152efa706d503c9776ae5a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d26e844001658213227e6212baff4e00db56f96b152efa706d503c9776ae5a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d26e844001658213227e6212baff4e00db56f96b152efa706d503c9776ae5a9d", kill_on_drop: false }`
[INFO] [stdout] d26e844001658213227e6212baff4e00db56f96b152efa706d503c9776ae5a9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cc78cc84b7a4bafc23210692bca20b98a6e3cef6ff143644b7737a555bf9173
[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" "5cc78cc84b7a4bafc23210692bca20b98a6e3cef6ff143644b7737a555bf9173", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "5cc78cc84b7a4bafc23210692bca20b98a6e3cef6ff143644b7737a555bf9173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cc78cc84b7a4bafc23210692bca20b98a6e3cef6ff143644b7737a555bf9173", kill_on_drop: false }`
[INFO] [stdout] 5cc78cc84b7a4bafc23210692bca20b98a6e3cef6ff143644b7737a555bf9173
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] 104b22f7fce668191f19fbc97608c9b53a8461e46052abb30afc57a36c141c5d
[INFO] running `Command { std: "docker" "start" "-a" "104b22f7fce668191f19fbc97608c9b53a8461e46052abb30afc57a36c141c5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc_version v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "104b22f7fce668191f19fbc97608c9b53a8461e46052abb30afc57a36c141c5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "104b22f7fce668191f19fbc97608c9b53a8461e46052abb30afc57a36c141c5d", kill_on_drop: false }`
[INFO] [stdout] 104b22f7fce668191f19fbc97608c9b53a8461e46052abb30afc57a36c141c5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] 04777c642e147760f765dba68d6e414b28d789b8a336459fcaf9141af29dc1b1
[INFO] running `Command { std: "docker" "start" "-a" "04777c642e147760f765dba68d6e414b28d789b8a336459fcaf9141af29dc1b1", 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/rustc_version-27fcd70a193250c0
[INFO] [stdout] running 7 tests
[INFO] [stdout] test parse_nightly ... ok
[INFO] [stdout] test parse_unknown ... ok
[INFO] [stdout] test parse_1_0_0 ... ok
[INFO] [stdout] test parse_1_16_0_nightly ... ok
[INFO] [stdout] test parse_unexpected ... ok
[INFO] [stdout] test parse_stable ... ok
[INFO] [stdout] test smoketest ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.51s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustc_version
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.80s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "04777c642e147760f765dba68d6e414b28d789b8a336459fcaf9141af29dc1b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04777c642e147760f765dba68d6e414b28d789b8a336459fcaf9141af29dc1b1", kill_on_drop: false }`
[INFO] [stdout] 04777c642e147760f765dba68d6e414b28d789b8a336459fcaf9141af29dc1b1