[INFO] updating cached repository ironlang/iron [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/ironlang/iron [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/ironlang/iron" "work/ex/beta-1.38-1/sources/1.37.0/gh/ironlang/iron"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ironlang/iron'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/ironlang/iron" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ironlang/iron"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ironlang/iron'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 89b83145292eccbc48292b92d143f164928f1855 [INFO] sha for GitHub repo ironlang/iron: 89b83145292eccbc48292b92d143f164928f1855 [INFO] validating manifest of ironlang/iron on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of ironlang/iron on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing ironlang/iron [INFO] finished frobbing ironlang/iron [INFO] frobbed toml for ironlang/iron written to work/ex/beta-1.38-1/sources/1.37.0/gh/ironlang/iron/Cargo.toml [INFO] started frobbing ironlang/iron [INFO] finished frobbing ironlang/iron [INFO] frobbed toml for ironlang/iron written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ironlang/iron/Cargo.toml [INFO] crate ironlang/iron already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing ironlang/iron against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ironlang/iron:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] e8c70932420f718dbbde38804fe74b1b5d8ec4ee0c81fb2c4df5ed9496b8d2a4 [INFO] running `"docker" "start" "-a" "e8c70932420f718dbbde38804fe74b1b5d8ec4ee0c81fb2c4df5ed9496b8d2a4"` [INFO] [stderr] Compiling cranelift-entity v0.25.0 [INFO] [stderr] Compiling target-lexicon v0.2.0 [INFO] [stderr] Compiling failure v0.1.3 [INFO] [stderr] Compiling cranelift-codegen-meta v0.25.0 [INFO] [stderr] Compiling cranelift-bforest v0.25.0 [INFO] [stderr] Compiling cranelift-codegen v0.25.0 [INFO] [stderr] Compiling cranelift-frontend v0.25.0 [INFO] [stderr] Compiling iron v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::fs::File` [INFO] [stderr] --> src/iron/codegen.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::fs::File; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::prelude::*` [INFO] [stderr] --> src/iron/codegen.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::io::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `iron::token::Token` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use iron::token::Token; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `iron::expression::Expression` [INFO] [stderr] --> src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use iron::expression::Expression; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `source` [INFO] [stderr] --> src/main.rs:24:17 [INFO] [stderr] | [INFO] [stderr] 24 | if let Some(source) = matches.value_of("INPUT") { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_source` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/iron/lexer.rs:146:33 [INFO] [stderr] | [INFO] [stderr] 146 | let mut current_token: Token; [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 36.57s [INFO] running `"docker" "inspect" "e8c70932420f718dbbde38804fe74b1b5d8ec4ee0c81fb2c4df5ed9496b8d2a4"` [INFO] running `"docker" "rm" "-f" "e8c70932420f718dbbde38804fe74b1b5d8ec4ee0c81fb2c4df5ed9496b8d2a4"` [INFO] [stdout] e8c70932420f718dbbde38804fe74b1b5d8ec4ee0c81fb2c4df5ed9496b8d2a4 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ironlang/iron:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"` [INFO] [stdout] 29a1a2df57d20d2e28f2b8cf836838fb25a630b513ebff264b4a25b961656229 [INFO] running `"docker" "start" "-a" "29a1a2df57d20d2e28f2b8cf836838fb25a630b513ebff264b4a25b961656229"` [INFO] [stderr] Compiling iron v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::fs::File` [INFO] [stderr] --> src/iron/codegen.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::fs::File; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::prelude::*` [INFO] [stderr] --> src/iron/codegen.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::io::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `iron::token::Token` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use iron::token::Token; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `iron::expression::Expression` [INFO] [stderr] --> src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use iron::expression::Expression; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `source` [INFO] [stderr] --> src/main.rs:24:17 [INFO] [stderr] | [INFO] [stderr] 24 | if let Some(source) = matches.value_of("INPUT") { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_source` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/iron/lexer.rs:146:33 [INFO] [stderr] | [INFO] [stderr] 146 | let mut current_token: Token; [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.34s [INFO] running `"docker" "inspect" "29a1a2df57d20d2e28f2b8cf836838fb25a630b513ebff264b4a25b961656229"` [INFO] running `"docker" "rm" "-f" "29a1a2df57d20d2e28f2b8cf836838fb25a630b513ebff264b4a25b961656229"` [INFO] [stdout] 29a1a2df57d20d2e28f2b8cf836838fb25a630b513ebff264b4a25b961656229 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ironlang/iron:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"` [INFO] [stdout] d3583ac420f9a184800c8333738a470a160913a9fab2a6cf4c2e8263e6256d1a [INFO] running `"docker" "start" "-a" "d3583ac420f9a184800c8333738a470a160913a9fab2a6cf4c2e8263e6256d1a"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/crater/target/debug/deps/iron-65eb099ed8807b8d [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "d3583ac420f9a184800c8333738a470a160913a9fab2a6cf4c2e8263e6256d1a"` [INFO] running `"docker" "rm" "-f" "d3583ac420f9a184800c8333738a470a160913a9fab2a6cf4c2e8263e6256d1a"` [INFO] [stdout] d3583ac420f9a184800c8333738a470a160913a9fab2a6cf4c2e8263e6256d1a