[INFO] cloning repository https://github.com/algebraic-sofia/dawn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/algebraic-sofia/dawn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falgebraic-sofia%2Fdawn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falgebraic-sofia%2Fdawn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 218db8c92dfda1f1bfe7ac41af76576a19f654e7
[INFO] checking algebraic-sofia/dawn against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falgebraic-sofia%2Fdawn" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/algebraic-sofia/dawn
[INFO] finished tweaking git repo https://github.com/algebraic-sofia/dawn
[INFO] tweaked toml for git repo https://github.com/algebraic-sofia/dawn written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/algebraic-sofia/dawn on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/algebraic-sofia/dawn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6136b14a21a866b3533c9bb1ec569eaae02c14419dece191d2a14120c3123c73
[INFO] running `Command { std: "docker" "start" "-a" "6136b14a21a866b3533c9bb1ec569eaae02c14419dece191d2a14120c3123c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6136b14a21a866b3533c9bb1ec569eaae02c14419dece191d2a14120c3123c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6136b14a21a866b3533c9bb1ec569eaae02c14419dece191d2a14120c3123c73", kill_on_drop: false }`
[INFO] [stdout] 6136b14a21a866b3533c9bb1ec569eaae02c14419dece191d2a14120c3123c73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d879cac3d9291d082eec351d670393fccb1eae0e9f15b4f0a9c7455ddad94796
[INFO] running `Command { std: "docker" "start" "-a" "d879cac3d9291d082eec351d670393fccb1eae0e9f15b4f0a9c7455ddad94796", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking dawn-emulator v0.1.0 (/opt/rustwide/workdir/crates/dawn-emulator)
[INFO] [stdout] warning: unused variable: `mem`
[INFO] [stdout]    --> crates/dawn-emulator/src/main.rs:107:30
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn compute<T>(&mut self, mem: &mut T, registers: &[u32; 32])
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_mem`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `registers`
[INFO] [stdout]    --> crates/dawn-emulator/src/main.rs:107:43
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn compute<T>(&mut self, mem: &mut T, registers: &[u32; 32])
[INFO] [stdout]     |                                           ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_registers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mem`
[INFO] [stdout]    --> crates/dawn-emulator/src/main.rs:107:30
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn compute<T>(&mut self, mem: &mut T, registers: &[u32; 32])
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_mem`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `registers`
[INFO] [stdout]    --> crates/dawn-emulator/src/main.rs:107:43
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn compute<T>(&mut self, mem: &mut T, registers: &[u32; 32])
[INFO] [stdout]     |                                           ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_registers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Decoder` is never constructed
[INFO] [stdout]   --> crates/dawn-emulator/src/main.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct Decoder {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> crates/dawn-emulator/src/main.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct Decoder {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 88 |     op_code: DelayedRegister,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 89 |     rd_or_imm: DelayedRegister,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 90 |     funct3: DelayedRegister,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 91 |     rs1: DelayedRegister,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 92 |     rs2: DelayedRegister,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 93 |     funct7: DelayedRegister,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 94 |     imm: DelayedRegister,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 95 |     imm_s: DelayedRegister
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Decoder` is never constructed
[INFO] [stdout]   --> crates/dawn-emulator/src/main.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct Decoder {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> crates/dawn-emulator/src/main.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct Decoder {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 88 |     op_code: DelayedRegister,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 89 |     rd_or_imm: DelayedRegister,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 90 |     funct3: DelayedRegister,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 91 |     rs1: DelayedRegister,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 92 |     rs2: DelayedRegister,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 93 |     funct7: DelayedRegister,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 94 |     imm: DelayedRegister,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 95 |     imm_s: DelayedRegister
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dawn-emulator` (bin "dawn-emulator") due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `dawn-emulator` (bin "dawn-emulator" test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d879cac3d9291d082eec351d670393fccb1eae0e9f15b4f0a9c7455ddad94796", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d879cac3d9291d082eec351d670393fccb1eae0e9f15b4f0a9c7455ddad94796", kill_on_drop: false }`
[INFO] [stdout] d879cac3d9291d082eec351d670393fccb1eae0e9f15b4f0a9c7455ddad94796