[INFO] fetching crate virmin 0.3.0... [INFO] testing virmin-0.3.0 against try#16fbf98f22730e073c09e7b03f0eafb87a295545 for pr-145628 [INFO] extracting crate virmin 0.3.0 into /workspace/builds/worker-4-tc2/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-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate virmin 0.3.0 on toolchain 16fbf98f22730e073c09e7b03f0eafb87a295545 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0db2a123bbd482cfd7d0ce9b02cd721e064672d094987f6c3f1d2aa8f7917bda [INFO] running `Command { std: "docker" "start" "-a" "0db2a123bbd482cfd7d0ce9b02cd721e064672d094987f6c3f1d2aa8f7917bda", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0db2a123bbd482cfd7d0ce9b02cd721e064672d094987f6c3f1d2aa8f7917bda", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0db2a123bbd482cfd7d0ce9b02cd721e064672d094987f6c3f1d2aa8f7917bda", kill_on_drop: false }` [INFO] [stdout] 0db2a123bbd482cfd7d0ce9b02cd721e064672d094987f6c3f1d2aa8f7917bda [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7e302243379bccde9801c3088feda347391dea341e5759200205f22384ca7c1d [INFO] running `Command { std: "docker" "start" "-a" "7e302243379bccde9801c3088feda347391dea341e5759200205f22384ca7c1d", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.5.0 [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 2.61s [INFO] running `Command { std: "docker" "inspect" "7e302243379bccde9801c3088feda347391dea341e5759200205f22384ca7c1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e302243379bccde9801c3088feda347391dea341e5759200205f22384ca7c1d", kill_on_drop: false }` [INFO] [stdout] 7e302243379bccde9801c3088feda347391dea341e5759200205f22384ca7c1d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5463942993f2ca5e8cdf0fd3ad7204eca4bcd3831490dbc417197750033afb5c [INFO] running `Command { std: "docker" "start" "-a" "5463942993f2ca5e8cdf0fd3ad7204eca4bcd3831490dbc417197750033afb5c", kill_on_drop: false }` [INFO] [stderr] error: failed to download `num-complex v0.4.6` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] unable to get packages from source [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to unpack package `num-complex v0.4.6` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-complex-0.4.6` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] Read-only file system (os error 30) [INFO] running `Command { std: "docker" "inspect" "5463942993f2ca5e8cdf0fd3ad7204eca4bcd3831490dbc417197750033afb5c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5463942993f2ca5e8cdf0fd3ad7204eca4bcd3831490dbc417197750033afb5c", kill_on_drop: false }` [INFO] [stdout] 5463942993f2ca5e8cdf0fd3ad7204eca4bcd3831490dbc417197750033afb5c