[INFO] cloning repository https://github.com/hesch/assembler-8bit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hesch/assembler-8bit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhesch%2Fassembler-8bit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhesch%2Fassembler-8bit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a0c5e538c1e22949ac11efafec1854120085486
[INFO] checking hesch/assembler-8bit against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhesch%2Fassembler-8bit" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hesch/assembler-8bit on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hesch/assembler-8bit
[INFO] finished tweaking git repo https://github.com/hesch/assembler-8bit
[INFO] tweaked toml for git repo https://github.com/hesch/assembler-8bit written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/hesch/assembler-8bit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trybuild v1.0.35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a26ed599fe006085a892d6ee419fb57567d9a21d0eb7f0f22a6d894a38e0baeb
[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" "a26ed599fe006085a892d6ee419fb57567d9a21d0eb7f0f22a6d894a38e0baeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a26ed599fe006085a892d6ee419fb57567d9a21d0eb7f0f22a6d894a38e0baeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a26ed599fe006085a892d6ee419fb57567d9a21d0eb7f0f22a6d894a38e0baeb", kill_on_drop: false }`
[INFO] [stdout] a26ed599fe006085a892d6ee419fb57567d9a21d0eb7f0f22a6d894a38e0baeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f036fbf42ea92644eeabe1b04058cfc2424829844f2ab8703044daab1ab4efa7
[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" "f036fbf42ea92644eeabe1b04058cfc2424829844f2ab8703044daab1ab4efa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling trybuild v1.0.35
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling gen_microcode v0.1.0 (/opt/rustwide/workdir/gen_microcode)
[INFO] [stderr]    Compiling field_size v0.1.0 (/opt/rustwide/workdir/field_size)
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling gen_microcode_macro v0.1.0 (/opt/rustwide/workdir/gen_microcode_macro)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> gen_microcode_macro/src/lib.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         (0..len)
[INFO] [stdout]    |         ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]   --> gen_microcode_macro/src/lib.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |             let test = "test";
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling field_size_macro v0.1.0 (/opt/rustwide/workdir/field_size_macro)
[INFO] [stderr]     Checking assembler-8bit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `)`, `,`, `@`, or `|`, found `0usize`
[INFO] [stdout]   --> src/microcode.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 | #[derive(gen_microcode)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^- help: missing `,`
[INFO] [stdout]    |          |
[INFO] [stdout]    |          expected one of `)`, `,`, `@`, or `|`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `)`, `,`, `@`, or `|`, found `0usize`
[INFO] [stdout]   --> src/microcode.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 | #[derive(gen_microcode)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^- help: missing `,`
[INFO] [stdout]    |          |
[INFO] [stdout]    |          expected one of `)`, `,`, `@`, or `|`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `assembler-8bit`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f036fbf42ea92644eeabe1b04058cfc2424829844f2ab8703044daab1ab4efa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f036fbf42ea92644eeabe1b04058cfc2424829844f2ab8703044daab1ab4efa7", kill_on_drop: false }`
[INFO] [stdout] f036fbf42ea92644eeabe1b04058cfc2424829844f2ab8703044daab1ab4efa7