[INFO] crate mtl-info 0.2.0 is already in cache
[INFO] extracting crate mtl-info 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/mtl-info/0.2.0
[INFO] extracting crate mtl-info 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mtl-info/0.2.0
[INFO] validating manifest of mtl-info-0.2.0 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 mtl-info-0.2.0 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 mtl-info-0.2.0
[INFO] finished frobbing mtl-info-0.2.0
[INFO] frobbed toml for mtl-info-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mtl-info/0.2.0/Cargo.toml
[INFO] started frobbing mtl-info-0.2.0
[INFO] finished frobbing mtl-info-0.2.0
[INFO] frobbed toml for mtl-info-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mtl-info/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing mtl-info-0.2.0 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-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mtl-info/0.2.0:/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] 6656e3796dff4401cbb0b33bf99a4d6baead28afc50019f029fe8f6f80be09ec
[INFO] running `"docker" "start" "-a" "6656e3796dff4401cbb0b33bf99a4d6baead28afc50019f029fe8f6f80be09ec"`
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling winconsole v0.10.0
[INFO] [stderr]    Compiling colored v1.8.0
[INFO] [stderr]    Compiling simple_logger v1.3.0
[INFO] [stderr]    Compiling mtl-info v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `debug`
[INFO] [stderr]  --> src/main.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 | use log::{debug, warn};
[INFO] [stderr]   |           ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_metal_library_file`
[INFO] [stderr]    --> src/parsing.rs:210:3
[INFO] [stderr]     |
[INFO] [stderr] 210 |   pub fn is_metal_library_file(reader: &mut T) -> bool {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.40s
[INFO] running `"docker" "inspect" "6656e3796dff4401cbb0b33bf99a4d6baead28afc50019f029fe8f6f80be09ec"`
[INFO] running `"docker" "rm" "-f" "6656e3796dff4401cbb0b33bf99a4d6baead28afc50019f029fe8f6f80be09ec"`
[INFO] [stdout] 6656e3796dff4401cbb0b33bf99a4d6baead28afc50019f029fe8f6f80be09ec
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mtl-info/0.2.0:/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] 822b033c74de5ac197021eaa16c81454ccae92ce2efc9e510bd8391e08a8296d
[INFO] running `"docker" "start" "-a" "822b033c74de5ac197021eaa16c81454ccae92ce2efc9e510bd8391e08a8296d"`
[INFO] [stderr]    Compiling mtl-info v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `debug`
[INFO] [stderr]  --> src/main.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 | use log::{debug, warn};
[INFO] [stderr]   |           ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_metal_library_file`
[INFO] [stderr]    --> src/parsing.rs:210:3
[INFO] [stderr]     |
[INFO] [stderr] 210 |   pub fn is_metal_library_file(reader: &mut T) -> bool {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "822b033c74de5ac197021eaa16c81454ccae92ce2efc9e510bd8391e08a8296d"`
[INFO] running `"docker" "rm" "-f" "822b033c74de5ac197021eaa16c81454ccae92ce2efc9e510bd8391e08a8296d"`
[INFO] [stdout] 822b033c74de5ac197021eaa16c81454ccae92ce2efc9e510bd8391e08a8296d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mtl-info/0.2.0:/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] 448728e146a2dd794f0f512c1aebe513794ad0e18fc17be1734d65a8e683c389
[INFO] running `"docker" "start" "-a" "448728e146a2dd794f0f512c1aebe513794ad0e18fc17be1734d65a8e683c389"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mtl_info-b84c46ffe5a94752
[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" "448728e146a2dd794f0f512c1aebe513794ad0e18fc17be1734d65a8e683c389"`
[INFO] running `"docker" "rm" "-f" "448728e146a2dd794f0f512c1aebe513794ad0e18fc17be1734d65a8e683c389"`
[INFO] [stdout] 448728e146a2dd794f0f512c1aebe513794ad0e18fc17be1734d65a8e683c389