[INFO] updating cached repository timglabisch/rust_cp437
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/timglabisch/rust_cp437
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/timglabisch/rust_cp437" "work/ex/beta-1.38-1/sources/1.37.0/gh/timglabisch/rust_cp437"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/timglabisch/rust_cp437'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/timglabisch/rust_cp437" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timglabisch/rust_cp437"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timglabisch/rust_cp437'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c42a9b2373ad4a2591856e92306d5f568a24357a
[INFO] sha for GitHub repo timglabisch/rust_cp437: c42a9b2373ad4a2591856e92306d5f568a24357a
[INFO] validating manifest of timglabisch/rust_cp437 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 timglabisch/rust_cp437 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 timglabisch/rust_cp437
[INFO] finished frobbing timglabisch/rust_cp437
[INFO] frobbed toml for timglabisch/rust_cp437 written to work/ex/beta-1.38-1/sources/1.37.0/gh/timglabisch/rust_cp437/Cargo.toml
[INFO] started frobbing timglabisch/rust_cp437
[INFO] finished frobbing timglabisch/rust_cp437
[INFO] frobbed toml for timglabisch/rust_cp437 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timglabisch/rust_cp437/Cargo.toml
[INFO] crate timglabisch/rust_cp437 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/timglabisch/rust_cp437/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing timglabisch/rust_cp437 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/timglabisch/rust_cp437:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5311de9e69e91896dbdb42546c6383854ffdc6b38fdb2a5be831f9fdb589cb0e
[INFO] running `"docker" "start" "-a" "5311de9e69e91896dbdb42546c6383854ffdc6b38fdb2a5be831f9fdb589cb0e"`
[INFO] [stderr]    Compiling cp437 v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/reader.rs:23:10
[INFO] [stderr]    |
[INFO] [stderr] 23 |                     Err(e) => None
[INFO] [stderr]    |                         ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `"docker" "inspect" "5311de9e69e91896dbdb42546c6383854ffdc6b38fdb2a5be831f9fdb589cb0e"`
[INFO] running `"docker" "rm" "-f" "5311de9e69e91896dbdb42546c6383854ffdc6b38fdb2a5be831f9fdb589cb0e"`
[INFO] [stdout] 5311de9e69e91896dbdb42546c6383854ffdc6b38fdb2a5be831f9fdb589cb0e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/timglabisch/rust_cp437:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2e0a983b0ce0ac46fb3bc04b0043e5041b26f87388ac0e5e1a383a12d8ef1e32
[INFO] running `"docker" "start" "-a" "2e0a983b0ce0ac46fb3bc04b0043e5041b26f87388ac0e5e1a383a12d8ef1e32"`
[INFO] [stderr]    Compiling cp437 v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/reader.rs:23:10
[INFO] [stderr]    |
[INFO] [stderr] 23 |                     Err(e) => None
[INFO] [stderr]    |                         ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "2e0a983b0ce0ac46fb3bc04b0043e5041b26f87388ac0e5e1a383a12d8ef1e32"`
[INFO] running `"docker" "rm" "-f" "2e0a983b0ce0ac46fb3bc04b0043e5041b26f87388ac0e5e1a383a12d8ef1e32"`
[INFO] [stdout] 2e0a983b0ce0ac46fb3bc04b0043e5041b26f87388ac0e5e1a383a12d8ef1e32
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/timglabisch/rust_cp437:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] e8aec5ff536491a5a1fbd9dc9639522c6980b67dca452c4a253dd361b0f17ebf
[INFO] running `"docker" "start" "-a" "e8aec5ff536491a5a1fbd9dc9639522c6980b67dca452c4a253dd361b0f17ebf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cp437-d1a45e630ab154a8
[INFO] [stderr]    Doc-tests cp437
[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] running `"docker" "inspect" "e8aec5ff536491a5a1fbd9dc9639522c6980b67dca452c4a253dd361b0f17ebf"`
[INFO] running `"docker" "rm" "-f" "e8aec5ff536491a5a1fbd9dc9639522c6980b67dca452c4a253dd361b0f17ebf"`
[INFO] [stdout] e8aec5ff536491a5a1fbd9dc9639522c6980b67dca452c4a253dd361b0f17ebf