[INFO] fetching crate sem 0.1.0...
[INFO] testing sem-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate sem 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate sem 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26a291f7ec2e6c0afeeb7ba92a66eb40956cc1382273e44bb85e878231e6e38d
[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" "26a291f7ec2e6c0afeeb7ba92a66eb40956cc1382273e44bb85e878231e6e38d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26a291f7ec2e6c0afeeb7ba92a66eb40956cc1382273e44bb85e878231e6e38d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26a291f7ec2e6c0afeeb7ba92a66eb40956cc1382273e44bb85e878231e6e38d", kill_on_drop: false }`
[INFO] [stdout] 26a291f7ec2e6c0afeeb7ba92a66eb40956cc1382273e44bb85e878231e6e38d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c6a8cf849262bf08a9ea5357b2fc1bb1c5995519169765515217b6707e4beb9
[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" "1c6a8cf849262bf08a9ea5357b2fc1bb1c5995519169765515217b6707e4beb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling sem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: missing fragment specifier
[INFO] [stdout]    --> src/macros.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |     ($id: expr, $index) => ({
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(missing_fragment_specifier)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: missing fragment specifier
[INFO] [stdout]    --> src/macros.rs:136:17
[INFO] [stdout]     |
[INFO] [stdout] 136 |     ($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] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sem` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "1c6a8cf849262bf08a9ea5357b2fc1bb1c5995519169765515217b6707e4beb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c6a8cf849262bf08a9ea5357b2fc1bb1c5995519169765515217b6707e4beb9", kill_on_drop: false }`
[INFO] [stdout] 1c6a8cf849262bf08a9ea5357b2fc1bb1c5995519169765515217b6707e4beb9