[INFO] fetching crate sem 0.1.0...
[INFO] testing sem-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate sem 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate sem 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bd32597f699a047a366166dd9b7f67deaacdd49265532262e73ecab71b19766
[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" "2bd32597f699a047a366166dd9b7f67deaacdd49265532262e73ecab71b19766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bd32597f699a047a366166dd9b7f67deaacdd49265532262e73ecab71b19766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bd32597f699a047a366166dd9b7f67deaacdd49265532262e73ecab71b19766", kill_on_drop: false }`
[INFO] [stdout] 2bd32597f699a047a366166dd9b7f67deaacdd49265532262e73ecab71b19766
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "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] e54d47a35198a47ba87a9e1cd657c5ae914dbb438abfddc81677ecaa9575cc7b
[INFO] running `Command { std: "docker" "start" "-a" "e54d47a35198a47ba87a9e1cd657c5ae914dbb438abfddc81677ecaa9575cc7b", 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 0.66s
[INFO] running `Command { std: "docker" "inspect" "e54d47a35198a47ba87a9e1cd657c5ae914dbb438abfddc81677ecaa9575cc7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e54d47a35198a47ba87a9e1cd657c5ae914dbb438abfddc81677ecaa9575cc7b", kill_on_drop: false }`
[INFO] [stdout] e54d47a35198a47ba87a9e1cd657c5ae914dbb438abfddc81677ecaa9575cc7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "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] 4312f6b5014dc91d78a11c0c01db2286ac938d048eaae2ea33f0bd302c04e763
[INFO] running `Command { std: "docker" "start" "-a" "4312f6b5014dc91d78a11c0c01db2286ac938d048eaae2ea33f0bd302c04e763", 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 1.41s
[INFO] running `Command { std: "docker" "inspect" "4312f6b5014dc91d78a11c0c01db2286ac938d048eaae2ea33f0bd302c04e763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4312f6b5014dc91d78a11c0c01db2286ac938d048eaae2ea33f0bd302c04e763", kill_on_drop: false }`
[INFO] [stdout] 4312f6b5014dc91d78a11c0c01db2286ac938d048eaae2ea33f0bd302c04e763
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 035ed622617b7b1553356e95b8505d0206372cce44a84833754f4ef0d315adf9
[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" "035ed622617b7b1553356e95b8505d0206372cce44a84833754f4ef0d315adf9", 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 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sem-121ed0da3d3313d5
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lib-e9a6b39d706054f7
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests sem
[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
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "035ed622617b7b1553356e95b8505d0206372cce44a84833754f4ef0d315adf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "035ed622617b7b1553356e95b8505d0206372cce44a84833754f4ef0d315adf9", kill_on_drop: false }`
[INFO] [stdout] 035ed622617b7b1553356e95b8505d0206372cce44a84833754f4ef0d315adf9