[INFO] updating cached repository tatref/mem [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/tatref/mem [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/tatref/mem" "work/ex/beta-1.37-6/sources/1.36.0/gh/tatref/mem"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/tatref/mem'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/tatref/mem" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tatref/mem"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tatref/mem'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c903ce7d9e03322b83decff7396d5ff295d02667 [INFO] sha for GitHub repo tatref/mem: c903ce7d9e03322b83decff7396d5ff295d02667 [INFO] validating manifest of tatref/mem on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of tatref/mem on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing tatref/mem [INFO] finished frobbing tatref/mem [INFO] frobbed toml for tatref/mem written to work/ex/beta-1.37-6/sources/1.36.0/gh/tatref/mem/Cargo.toml [INFO] started frobbing tatref/mem [INFO] finished frobbing tatref/mem [INFO] frobbed toml for tatref/mem written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tatref/mem/Cargo.toml [INFO] crate tatref/mem already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Updating crates.io index [INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/tatref/mem/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing tatref/mem against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/tatref/mem:/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" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 3b1a2e16870d07bd3a163d34abc92d73c5dd1b3cb4f32564c66d5e091609b3ad [INFO] running `"docker" "start" "-a" "3b1a2e16870d07bd3a163d34abc92d73c5dd1b3cb4f32564c66d5e091609b3ad"` [INFO] [stderr] Compiling mem v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::io` [INFO] [stderr] --> src/bin/test2.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::io; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/reader.rs:272:9 [INFO] [stderr] | [INFO] [stderr] 272 | let mut reader = Reader::new(pid); [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] warning: method is never used: `heap` [INFO] [stderr] --> src/bin/reader.rs:175:9 [INFO] [stderr] | [INFO] [stderr] 175 | pub fn heap(&self) -> Result, ()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `same` [INFO] [stderr] --> src/bin/reader.rs:188:1 [INFO] [stderr] | [INFO] [stderr] 188 | fn same(a: &[u8], b: &[u8]) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `increase` [INFO] [stderr] --> src/bin/reader.rs:193:1 [INFO] [stderr] | [INFO] [stderr] 193 | fn increase(a: &[u8], b: &[u8]) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/reader.rs:226:13 [INFO] [stderr] | [INFO] [stderr] 226 | std::io::stdout().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.56s [INFO] running `"docker" "inspect" "3b1a2e16870d07bd3a163d34abc92d73c5dd1b3cb4f32564c66d5e091609b3ad"` [INFO] running `"docker" "rm" "-f" "3b1a2e16870d07bd3a163d34abc92d73c5dd1b3cb4f32564c66d5e091609b3ad"` [INFO] [stdout] 3b1a2e16870d07bd3a163d34abc92d73c5dd1b3cb4f32564c66d5e091609b3ad [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/tatref/mem:/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" "+1.36.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 11c110298a4fc1cbca52653f005a014610335db0193b2a8f2eea56355dadb85b [INFO] running `"docker" "start" "-a" "11c110298a4fc1cbca52653f005a014610335db0193b2a8f2eea56355dadb85b"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Compiling mem v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::io` [INFO] [stderr] --> src/bin/test2.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::io; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/reader.rs:272:9 [INFO] [stderr] | [INFO] [stderr] 272 | let mut reader = Reader::new(pid); [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] warning: method is never used: `heap` [INFO] [stderr] --> src/bin/reader.rs:175:9 [INFO] [stderr] | [INFO] [stderr] 175 | pub fn heap(&self) -> Result, ()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `same` [INFO] [stderr] --> src/bin/reader.rs:188:1 [INFO] [stderr] | [INFO] [stderr] 188 | fn same(a: &[u8], b: &[u8]) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `increase` [INFO] [stderr] --> src/bin/reader.rs:193:1 [INFO] [stderr] | [INFO] [stderr] 193 | fn increase(a: &[u8], b: &[u8]) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/reader.rs:226:13 [INFO] [stderr] | [INFO] [stderr] 226 | std::io::stdout().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.09s [INFO] running `"docker" "inspect" "11c110298a4fc1cbca52653f005a014610335db0193b2a8f2eea56355dadb85b"` [INFO] running `"docker" "rm" "-f" "11c110298a4fc1cbca52653f005a014610335db0193b2a8f2eea56355dadb85b"` [INFO] [stdout] 11c110298a4fc1cbca52653f005a014610335db0193b2a8f2eea56355dadb85b [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/tatref/mem:/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" "+1.36.0" "test" "--frozen"` [INFO] [stdout] 9cd93743da99d244e3598b32de220d9d8fd9c91a059f5541f2b0e55835500773 [INFO] running `"docker" "start" "-a" "9cd93743da99d244e3598b32de220d9d8fd9c91a059f5541f2b0e55835500773"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/crater/target/debug/deps/reader-0052832ce5f8d9e8 [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] [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] [stderr] Running /opt/crater/target/debug/deps/test2-f31619eead42ee98 [INFO] running `"docker" "inspect" "9cd93743da99d244e3598b32de220d9d8fd9c91a059f5541f2b0e55835500773"` [INFO] running `"docker" "rm" "-f" "9cd93743da99d244e3598b32de220d9d8fd9c91a059f5541f2b0e55835500773"` [INFO] [stdout] 9cd93743da99d244e3598b32de220d9d8fd9c91a059f5541f2b0e55835500773