[INFO] cloning repository https://github.com/Inphi/rust-lc3-vm [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Inphi/rust-lc3-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FInphi%2Frust-lc3-vm", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FInphi%2Frust-lc3-vm'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cfcd5d5d288938fffa8a21c96f40d60460dfb7f0 [INFO] checking Inphi/rust-lc3-vm against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FInphi%2Frust-lc3-vm" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Inphi/rust-lc3-vm on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Inphi/rust-lc3-vm [INFO] finished tweaking git repo https://github.com/Inphi/rust-lc3-vm [INFO] tweaked toml for git repo https://github.com/Inphi/rust-lc3-vm written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Inphi/rust-lc3-vm 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1c14163425038edb8d0e979b124656191ee8c984103796ee354054e6743071a8 [INFO] running `Command { std: "docker" "start" "-a" "1c14163425038edb8d0e979b124656191ee8c984103796ee354054e6743071a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1c14163425038edb8d0e979b124656191ee8c984103796ee354054e6743071a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c14163425038edb8d0e979b124656191ee8c984103796ee354054e6743071a8", kill_on_drop: false }` [INFO] [stdout] 1c14163425038edb8d0e979b124656191ee8c984103796ee354054e6743071a8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] da47ad557f14d99445c1bb8d88f3e67d10b19ccd40551c3f3eb298d254a38fdb [INFO] running `Command { std: "docker" "start" "-a" "da47ad557f14d99445c1bb8d88f3e67d10b19ccd40551c3f3eb298d254a38fdb", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking lazycell v1.2.1 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking mio v0.6.16 [INFO] [stderr] Checking lc3-vm v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `in_t` is never used [INFO] [stdout] --> src/trap.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 48 | pub fn in_t(vm: &VM) { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `in_t` is never used [INFO] [stdout] --> src/trap.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 48 | pub fn in_t(vm: &VM) { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `DPSR` is never used [INFO] [stdout] --> src/vm.rs:17:7 [INFO] [stdout] | [INFO] [stdout] 17 | const DPSR: u16 = 0xFE04; // memory-mapped display status register [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `DPSR` is never used [INFO] [stdout] --> src/vm.rs:17:7 [INFO] [stdout] | [INFO] [stdout] 17 | const DPSR: u16 = 0xFE04; // memory-mapped display status register [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `DPDR` is never used [INFO] [stdout] --> src/vm.rs:18:7 [INFO] [stdout] | [INFO] [stdout] 18 | const DPDR: u16 = 0xFE06; // memory-mapped display data register [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `DPDR` is never used [INFO] [stdout] --> src/vm.rs:18:7 [INFO] [stdout] | [INFO] [stdout] 18 | const DPDR: u16 = 0xFE06; // memory-mapped display data register [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `MCCR` is never used [INFO] [stdout] --> src/vm.rs:19:7 [INFO] [stdout] | [INFO] [stdout] 19 | const MCCR: u16 = 0xFFFE; // memory-mapped machine control register [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `MCCR` is never used [INFO] [stdout] --> src/vm.rs:19:7 [INFO] [stdout] | [INFO] [stdout] 19 | const MCCR: u16 = 0xFFFE; // memory-mapped machine control register [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `prompt` is never read [INFO] [stdout] --> src/vm.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct VM { [INFO] [stdout] | -- field in this struct [INFO] [stdout] ... [INFO] [stdout] 26 | pub prompt: &'static str, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `prompt` is never read [INFO] [stdout] --> src/vm.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct VM { [INFO] [stdout] | -- field in this struct [INFO] [stdout] ... [INFO] [stdout] 26 | pub prompt: &'static str, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `read` and `rwrite` are never used [INFO] [stdout] --> src/vm.rs:131:12 [INFO] [stdout] | [INFO] [stdout] 29 | impl VM { [INFO] [stdout] | ------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 131 | pub fn read(&self, r: Register) -> u16 { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 135 | pub fn rwrite(&mut self, r: Register, val: u16) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `read` and `rwrite` are never used [INFO] [stdout] --> src/vm.rs:131:12 [INFO] [stdout] | [INFO] [stdout] 29 | impl VM { [INFO] [stdout] | ------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 131 | pub fn read(&self, r: Register) -> u16 { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 135 | pub fn rwrite(&mut self, r: Register, val: u16) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/vm.rs:149:32 [INFO] [stdout] | [INFO] [stdout] 149 | panic!(err); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 149 | panic!("{}", err); [INFO] [stdout] | +++++ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 149 | std::panic::panic_any(err); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/vm.rs:149:32 [INFO] [stdout] | [INFO] [stdout] 149 | panic!(err); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 149 | panic!("{}", err); [INFO] [stdout] | +++++ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 149 | std::panic::panic_any(err); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.82s [INFO] running `Command { std: "docker" "inspect" "da47ad557f14d99445c1bb8d88f3e67d10b19ccd40551c3f3eb298d254a38fdb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da47ad557f14d99445c1bb8d88f3e67d10b19ccd40551c3f3eb298d254a38fdb", kill_on_drop: false }` [INFO] [stdout] da47ad557f14d99445c1bb8d88f3e67d10b19ccd40551c3f3eb298d254a38fdb