[INFO] fetching crate sem 0.1.0...
[INFO] testing sem-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate sem 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate sem 0.1.0 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 sem 0.1.0
[INFO] finished tweaking crates.io crate sem 0.1.0
[INFO] tweaked toml for crates.io crate sem 0.1.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 282ceeba1f5ac550d2ba1a61de0a41092444b50b760e9ff22be4d20e81217870
[INFO] running `Command { std: "docker" "start" "-a" "282ceeba1f5ac550d2ba1a61de0a41092444b50b760e9ff22be4d20e81217870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "282ceeba1f5ac550d2ba1a61de0a41092444b50b760e9ff22be4d20e81217870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "282ceeba1f5ac550d2ba1a61de0a41092444b50b760e9ff22be4d20e81217870", kill_on_drop: false }`
[INFO] [stdout] 282ceeba1f5ac550d2ba1a61de0a41092444b50b760e9ff22be4d20e81217870
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] ebb4991102961e18d043943f9d31413a2efd76681e508c476bbe6ee38605f573
[INFO] running `Command { std: "docker" "start" "-a" "ebb4991102961e18d043943f9d31413a2efd76681e508c476bbe6ee38605f573", kill_on_drop: false }`
[INFO] [stderr]    Compiling sem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: missing fragment specifier
[INFO] [stdout]    --> src/macros.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |     ($id: expr, $index) => ({
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(missing_fragment_specifier)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing fragment specifier
[INFO] [stdout]    --> src/macros.rs:136:17
[INFO] [stdout]     |
[INFO] [stdout] 136 |     ($id: expr, $index) => ({
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "ebb4991102961e18d043943f9d31413a2efd76681e508c476bbe6ee38605f573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebb4991102961e18d043943f9d31413a2efd76681e508c476bbe6ee38605f573", kill_on_drop: false }`
[INFO] [stdout] ebb4991102961e18d043943f9d31413a2efd76681e508c476bbe6ee38605f573
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 8feac9306030a3dc0e4fe21e484146ff6e04bb586544147c80aaa6a30c85059e
[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" "8feac9306030a3dc0e4fe21e484146ff6e04bb586544147c80aaa6a30c85059e", kill_on_drop: false }`
[INFO] [stdout] warning: missing fragment specifier
[INFO] [stdout]    --> src/macros.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |     ($id: expr, $index) => ({
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(missing_fragment_specifier)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: missing fragment specifier
[INFO] [stdout]    --> src/macros.rs:136:17
[INFO] [stdout]     |
[INFO] [stdout] 136 |     ($id: expr, $index) => ({
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing fragment specifier
[INFO] [stdout]    --> src/macros.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |     ($id: expr, $index) => ({
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(missing_fragment_specifier)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing fragment specifier
[INFO] [stdout]    --> src/macros.rs:136:17
[INFO] [stdout]     |
[INFO] [stdout] 136 |     ($id: expr, $index) => ({
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "8feac9306030a3dc0e4fe21e484146ff6e04bb586544147c80aaa6a30c85059e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8feac9306030a3dc0e4fe21e484146ff6e04bb586544147c80aaa6a30c85059e", kill_on_drop: false }`
[INFO] [stdout] 8feac9306030a3dc0e4fe21e484146ff6e04bb586544147c80aaa6a30c85059e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] 25650222da14e63aab5ebd71c464106fc387c5089b70399bfcf88e063cf9c615
[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" "25650222da14e63aab5ebd71c464106fc387c5089b70399bfcf88e063cf9c615", kill_on_drop: false }`
[INFO] [stderr] warning: missing fragment specifier
[INFO] [stderr]    --> src/macros.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |     ($id: expr, $index) => ({
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(missing_fragment_specifier)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stderr] 
[INFO] [stderr] warning: missing fragment specifier
[INFO] [stderr]    --> src/macros.rs:136:17
[INFO] [stderr]     |
[INFO] [stderr] 136 |     ($id: expr, $index) => ({
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: missing fragment specifier
[INFO] [stderr]    --> src/macros.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |     ($id: expr, $index) => ({
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(missing_fragment_specifier)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stderr] 
[INFO] [stderr] warning: missing fragment specifier
[INFO] [stderr]    --> src/macros.rs:136:17
[INFO] [stderr]     |
[INFO] [stderr] 136 |     ($id: expr, $index) => ({
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sem-567443f19fd5e5c3
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lib-451dd1eed0be2b5c
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sem
[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 1 test
[INFO] [stdout] test lock_and_unlock ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "25650222da14e63aab5ebd71c464106fc387c5089b70399bfcf88e063cf9c615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25650222da14e63aab5ebd71c464106fc387c5089b70399bfcf88e063cf9c615", kill_on_drop: false }`
[INFO] [stdout] 25650222da14e63aab5ebd71c464106fc387c5089b70399bfcf88e063cf9c615