[INFO] fetching crate virmin 0.3.0...
[INFO] testing virmin-0.3.0 against master#160e7623e8cbbf1feab2b6e2a24733a98c7bde9c for pr-145628-retry-1
[INFO] extracting crate virmin 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate virmin 0.3.0
[INFO] finished tweaking crates.io crate virmin 0.3.0
[INFO] tweaked toml for crates.io crate virmin 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate virmin 0.3.0 on toolchain 160e7623e8cbbf1feab2b6e2a24733a98c7bde9c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8aab8ff4d25da9987b77d6ce70a3a46a310fccc62d14f147f0072e7de14b9de0
[INFO] running `Command { std: "docker" "start" "-a" "8aab8ff4d25da9987b77d6ce70a3a46a310fccc62d14f147f0072e7de14b9de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8aab8ff4d25da9987b77d6ce70a3a46a310fccc62d14f147f0072e7de14b9de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aab8ff4d25da9987b77d6ce70a3a46a310fccc62d14f147f0072e7de14b9de0", kill_on_drop: false }`
[INFO] [stdout] 8aab8ff4d25da9987b77d6ce70a3a46a310fccc62d14f147f0072e7de14b9de0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce0a2dcceec397218b8e2e2c65ce286e7ddd296497380c0e7b20b6f3d0140847
[INFO] running `Command { std: "docker" "start" "-a" "ce0a2dcceec397218b8e2e2c65ce286e7ddd296497380c0e7b20b6f3d0140847", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling virmin v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/domain.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 |     for i in 0 .. self.value {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/domain.rs:76:6
[INFO] [stdout]    |
[INFO] [stdout] 76 |     for i in 0 .. self.value {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/insn.rs:94:34
[INFO] [stdout]    |
[INFO] [stdout] 94 |         AbstractMicroCode::Copy(x,y,w) => {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/insn.rs:97:32
[INFO] [stdout]    |
[INFO] [stdout] 97 |         AbstractMicroCode::Load(x,i,w) => {
[INFO] [stdout]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/insn.rs:97:34
[INFO] [stdout]    |
[INFO] [stdout] 97 |         AbstractMicroCode::Load(x,i,w) => {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/insn.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |         Operand::Const(i) => {
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/machine.rs:211:6
[INFO] [stdout]     |
[INFO] [stdout] 211 |         _ => {
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/machine.rs:211:6
[INFO] [stdout]     |
[INFO] [stdout] 129 |         MicroCode::Add(x,y,Width::Byte) => {
[INFO] [stdout]     |         ------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 138 |         MicroCode::Add(x,y,Width::Word) => {
[INFO] [stdout]     |         ------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 147 |         MicroCode::Add(x,y,Width::DoubleWord) => {
[INFO] [stdout]     |         ------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 156 |         MicroCode::Add(x,y,Width::QuadWord) => {
[INFO] [stdout]     |         ----------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 211 |         _ => {
[INFO] [stdout]     |         ^ ...and 10 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mnemonic` and `format` are never read
[INFO] [stdout]    --> src/insn.rs:171:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub struct Instruction<'a> {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 171 |     mnemonic: &'a str,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 172 |     /// Format associated with this instruction.
[INFO] [stdout] 173 |     format: &'a Format,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `insns` is never read
[INFO] [stdout]    --> src/insn.rs:201:5
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub struct InstructionSet<'a> {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 201 |     insns : &'a [Instruction<'a>]
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.59s
[INFO] running `Command { std: "docker" "inspect" "ce0a2dcceec397218b8e2e2c65ce286e7ddd296497380c0e7b20b6f3d0140847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce0a2dcceec397218b8e2e2c65ce286e7ddd296497380c0e7b20b6f3d0140847", kill_on_drop: false }`
[INFO] [stdout] ce0a2dcceec397218b8e2e2c65ce286e7ddd296497380c0e7b20b6f3d0140847
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49d9c18e3c50a65388b67092997f153f73a547f883ee26bcd50ee2bd413f168f
[INFO] running `Command { std: "docker" "start" "-a" "49d9c18e3c50a65388b67092997f153f73a547f883ee26bcd50ee2bd413f168f", kill_on_drop: false }`
[INFO] [stderr]    Compiling virmin v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/domain.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 |     for i in 0 .. self.value {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/domain.rs:76:6
[INFO] [stdout]    |
[INFO] [stdout] 76 |     for i in 0 .. self.value {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/insn.rs:94:34
[INFO] [stdout]    |
[INFO] [stdout] 94 |         AbstractMicroCode::Copy(x,y,w) => {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/insn.rs:97:32
[INFO] [stdout]    |
[INFO] [stdout] 97 |         AbstractMicroCode::Load(x,i,w) => {
[INFO] [stdout]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/insn.rs:97:34
[INFO] [stdout]    |
[INFO] [stdout] 97 |         AbstractMicroCode::Load(x,i,w) => {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/insn.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |         Operand::Const(i) => {
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/machine.rs:211:6
[INFO] [stdout]     |
[INFO] [stdout] 211 |         _ => {
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/machine.rs:211:6
[INFO] [stdout]     |
[INFO] [stdout] 129 |         MicroCode::Add(x,y,Width::Byte) => {
[INFO] [stdout]     |         ------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 138 |         MicroCode::Add(x,y,Width::Word) => {
[INFO] [stdout]     |         ------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 147 |         MicroCode::Add(x,y,Width::DoubleWord) => {
[INFO] [stdout]     |         ------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 156 |         MicroCode::Add(x,y,Width::QuadWord) => {
[INFO] [stdout]     |         ----------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 211 |         _ => {
[INFO] [stdout]     |         ^ ...and 10 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mnemonic` and `format` are never read
[INFO] [stdout]    --> src/insn.rs:171:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub struct Instruction<'a> {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 171 |     mnemonic: &'a str,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 172 |     /// Format associated with this instruction.
[INFO] [stdout] 173 |     format: &'a Format,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `insns` is never read
[INFO] [stdout]    --> src/insn.rs:201:5
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub struct InstructionSet<'a> {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 201 |     insns : &'a [Instruction<'a>]
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Word`
[INFO] [stdout]  --> tests/insn_tests.rs:8:35
[INFO] [stdout]   |
[INFO] [stdout] 8 | use virmin::machine::Width::{Byte,Word};
[INFO] [stdout]   |                                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insn`
[INFO] [stdout]    --> tests/insn_tests.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let insn = Instruction::new("insn", &fmt, &microcode);
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_insn`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `insn`
[INFO] [stdout]    --> tests/insn_tests.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |     let insn = Instruction::new("insn", &fmt, &microcode);
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_insn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `virmin::machine::Memory`
[INFO] [stdout]  --> tests/machine_tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use virmin::machine::Memory;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `QuadWord`
[INFO] [stdout]  --> tests/machine_tests.rs:4:51
[INFO] [stdout]   |
[INFO] [stdout] 4 | use virmin::machine::Width::{Byte,Word,DoubleWord,QuadWord};
[INFO] [stdout]   |                                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `virmin::machine::Sign::*`
[INFO] [stdout]  --> tests/machine_tests.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use virmin::machine::Sign::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/domain.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 |     for i in 0 .. self.value {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/domain.rs:76:6
[INFO] [stdout]    |
[INFO] [stdout] 76 |     for i in 0 .. self.value {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/insn.rs:94:34
[INFO] [stdout]    |
[INFO] [stdout] 94 |         AbstractMicroCode::Copy(x,y,w) => {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/insn.rs:97:32
[INFO] [stdout]    |
[INFO] [stdout] 97 |         AbstractMicroCode::Load(x,i,w) => {
[INFO] [stdout]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/insn.rs:97:34
[INFO] [stdout]    |
[INFO] [stdout] 97 |         AbstractMicroCode::Load(x,i,w) => {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/insn.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |         Operand::Const(i) => {
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/machine.rs:211:6
[INFO] [stdout]     |
[INFO] [stdout] 211 |         _ => {
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/machine.rs:211:6
[INFO] [stdout]     |
[INFO] [stdout] 129 |         MicroCode::Add(x,y,Width::Byte) => {
[INFO] [stdout]     |         ------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 138 |         MicroCode::Add(x,y,Width::Word) => {
[INFO] [stdout]     |         ------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 147 |         MicroCode::Add(x,y,Width::DoubleWord) => {
[INFO] [stdout]     |         ------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 156 |         MicroCode::Add(x,y,Width::QuadWord) => {
[INFO] [stdout]     |         ----------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 211 |         _ => {
[INFO] [stdout]     |         ^ ...and 10 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mnemonic` and `format` are never read
[INFO] [stdout]    --> src/insn.rs:171:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub struct Instruction<'a> {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 171 |     mnemonic: &'a str,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 172 |     /// Format associated with this instruction.
[INFO] [stdout] 173 |     format: &'a Format,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `insns` is never read
[INFO] [stdout]    --> src/insn.rs:201:5
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub struct InstructionSet<'a> {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 201 |     insns : &'a [Instruction<'a>]
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "49d9c18e3c50a65388b67092997f153f73a547f883ee26bcd50ee2bd413f168f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49d9c18e3c50a65388b67092997f153f73a547f883ee26bcd50ee2bd413f168f", kill_on_drop: false }`
[INFO] [stdout] 49d9c18e3c50a65388b67092997f153f73a547f883ee26bcd50ee2bd413f168f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 418d9191ba9291f22ee3f3636565c5dbed912967d3a0ea3b84c2c1ec134db737
[INFO] running `Command { std: "docker" "start" "-a" "418d9191ba9291f22ee3f3636565c5dbed912967d3a0ea3b84c2c1ec134db737", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/domain.rs:44:6
[INFO] [stderr]    |
[INFO] [stderr] 44 |     for i in 0 .. self.value {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/domain.rs:76:6
[INFO] [stderr]    |
[INFO] [stderr] 76 |     for i in 0 .. self.value {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> src/insn.rs:94:34
[INFO] [stderr]    |
[INFO] [stderr] 94 |         AbstractMicroCode::Copy(x,y,w) => {
[INFO] [stderr]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/insn.rs:97:32
[INFO] [stderr]    |
[INFO] [stderr] 97 |         AbstractMicroCode::Load(x,i,w) => {
[INFO] [stderr]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> src/insn.rs:97:34
[INFO] [stderr]    |
[INFO] [stderr] 97 |         AbstractMicroCode::Load(x,i,w) => {
[INFO] [stderr]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/insn.rs:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 |         Operand::Const(i) => {
[INFO] [stderr]     |                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/machine.rs:211:6
[INFO] [stderr]     |
[INFO] [stderr] 211 |         _ => {
[INFO] [stderr]     |         ^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]    --> src/machine.rs:211:6
[INFO] [stderr]     |
[INFO] [stderr] 129 |         MicroCode::Add(x,y,Width::Byte) => {
[INFO] [stderr]     |         ------------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 138 |         MicroCode::Add(x,y,Width::Word) => {
[INFO] [stderr]     |         ------------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 147 |         MicroCode::Add(x,y,Width::DoubleWord) => {
[INFO] [stderr]     |         ------------------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 156 |         MicroCode::Add(x,y,Width::QuadWord) => {
[INFO] [stderr]     |         ----------------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 211 |         _ => {
[INFO] [stderr]     |         ^ ...and 10 other patterns collectively make this unreachable
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `mnemonic` and `format` are never read
[INFO] [stderr]    --> src/insn.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 168 | pub struct Instruction<'a> {
[INFO] [stderr]     |            ----------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 171 |     mnemonic: &'a str,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 172 |     /// Format associated with this instruction.
[INFO] [stderr] 173 |     format: &'a Format,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `insns` is never read
[INFO] [stderr]    --> src/insn.rs:201:5
[INFO] [stderr]     |
[INFO] [stderr] 200 | pub struct InstructionSet<'a> {
[INFO] [stderr]     |            -------------- field in this struct
[INFO] [stderr] 201 |     insns : &'a [Instruction<'a>]
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `virmin` (lib) generated 9 warnings
[INFO] [stderr] warning: unused import: `Word`
[INFO] [stderr]  --> tests/insn_tests.rs:8:35
[INFO] [stderr]   |
[INFO] [stderr] 8 | use virmin::machine::Width::{Byte,Word};
[INFO] [stderr]   |                                   ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insn`
[INFO] [stderr]    --> tests/insn_tests.rs:140:9
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let insn = Instruction::new("insn", &fmt, &microcode);
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_insn`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `insn`
[INFO] [stderr]    --> tests/insn_tests.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |     let insn = Instruction::new("insn", &fmt, &microcode);
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_insn`
[INFO] [stderr] 
[INFO] [stderr] warning: `virmin` (test "insn_tests") generated 3 warnings (run `cargo fix --test "insn_tests"` to apply 1 suggestion)
[INFO] [stderr] warning: unused import: `virmin::machine::Memory`
[INFO] [stderr]  --> tests/machine_tests.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use virmin::machine::Memory;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `QuadWord`
[INFO] [stderr]  --> tests/machine_tests.rs:4:51
[INFO] [stderr]   |
[INFO] [stderr] 4 | use virmin::machine::Width::{Byte,Word,DoubleWord,QuadWord};
[INFO] [stderr]   |                                                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `virmin::machine::Sign::*`
[INFO] [stderr]  --> tests/machine_tests.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use virmin::machine::Sign::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `virmin` (test "machine_tests") generated 3 warnings (run `cargo fix --test "machine_tests"` to apply 3 suggestions)
[INFO] [stderr] warning: `virmin` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/virmin-7a5e0991b11430cd)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/insn_tests.rs (/opt/rustwide/target/debug/deps/insn_tests-1c62dba057591e61)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test test_bits_01 ... ok
[INFO] [stdout] test test_bytes_01 ... ok
[INFO] [stdout] test test_bits_03 ... ok
[INFO] [stdout] test test_bits_02 ... ok
[INFO] [stdout] test test_bytes_02 ... ok
[INFO] [stdout] test test_bytes_03 ... ok
[INFO] [stdout] test test_format_03 ... ok
[INFO] [stdout] test test_format_05 ... ok
[INFO] [stdout] test test_format_06 ... ok
[INFO] [stdout] test test_insn_01 ... ok
[INFO] [stdout] test test_insn_02 ... ok
[INFO] [stdout] test test_format_04 ... ok
[INFO] [stdout] test test_bytes_00 - should panic ... ok
[INFO] [stdout] test test_insn_03 - should panic ... ok
[INFO] [stdout] test test_insn_04 - should panic ... ok
[INFO] [stdout] test test_bits_00 - should panic ... ok
[INFO] [stdout] test test_format_01 - should panic ... ok
[INFO] [stdout] test test_format_02 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/machine_tests.rs (/opt/rustwide/target/debug/deps/machine_tests-552c8ceaf6187791)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test test_add_01 ... ok
[INFO] [stdout] test test_add_02 ... ok
[INFO] [stdout] test test_add_03 ... ok
[INFO] [stdout] test test_copy_03 ... ok
[INFO] [stdout] test test_goto_01 ... ok
[INFO] [stdout] test test_copy_02 ... ok
[INFO] [stdout] test test_copy_01 ... ok
[INFO] [stdout] test test_goto_02 ... ok
[INFO] [stdout] test test_jump_02 ... ok
[INFO] [stdout] test test_load_01 ... ok
[INFO] [stdout] test test_load_02 ... ok
[INFO] [stdout] test test_load_04 ... ok
[INFO] [stdout] test test_jump_01 ... ok
[INFO] [stdout] test test_load_05 ... ok
[INFO] [stdout] test test_load_03 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests virmin
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "418d9191ba9291f22ee3f3636565c5dbed912967d3a0ea3b84c2c1ec134db737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "418d9191ba9291f22ee3f3636565c5dbed912967d3a0ea3b84c2c1ec134db737", kill_on_drop: false }`
[INFO] [stdout] 418d9191ba9291f22ee3f3636565c5dbed912967d3a0ea3b84c2c1ec134db737