[INFO] updating cached repository asmoaesl/webs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/asmoaesl/webs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/asmoaesl/webs" "work/ex/beta-1.38-1/sources/1.37.0/gh/asmoaesl/webs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/asmoaesl/webs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/asmoaesl/webs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asmoaesl/webs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asmoaesl/webs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2c9027ea2a02cbf05f959995a7da3003241d3f59
[INFO] sha for GitHub repo asmoaesl/webs: 2c9027ea2a02cbf05f959995a7da3003241d3f59
[INFO] validating manifest of asmoaesl/webs 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 asmoaesl/webs 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 asmoaesl/webs
[INFO] finished frobbing asmoaesl/webs
[INFO] frobbed toml for asmoaesl/webs written to work/ex/beta-1.38-1/sources/1.37.0/gh/asmoaesl/webs/Cargo.toml
[INFO] started frobbing asmoaesl/webs
[INFO] finished frobbing asmoaesl/webs
[INFO] frobbed toml for asmoaesl/webs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asmoaesl/webs/Cargo.toml
[INFO] crate asmoaesl/webs 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 asmoaesl/webs 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/asmoaesl/webs:/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] 4bf9a025153d15007ba81edc6970a4a959fb12d4fa61d253db2bc915ccc29d18
[INFO] running `"docker" "start" "-a" "4bf9a025153d15007ba81edc6970a4a959fb12d4fa61d253db2bc915ccc29d18"`
[INFO] [stderr]    Compiling webs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::iter::Peekable`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter::Peekable;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::Chars`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut tokens = Vec::new();
[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: enum is never used: `Token`
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum Token {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tokenize`
[INFO] [stderr]   --> src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn tokenize(input: &str) -> Vec<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "4bf9a025153d15007ba81edc6970a4a959fb12d4fa61d253db2bc915ccc29d18"`
[INFO] running `"docker" "rm" "-f" "4bf9a025153d15007ba81edc6970a4a959fb12d4fa61d253db2bc915ccc29d18"`
[INFO] [stdout] 4bf9a025153d15007ba81edc6970a4a959fb12d4fa61d253db2bc915ccc29d18
[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/asmoaesl/webs:/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] 8ff003e2f20ff40e759360ce13de22d9345fc5c8b2135f12d8cdd8f1ca9bcbe6
[INFO] running `"docker" "start" "-a" "8ff003e2f20ff40e759360ce13de22d9345fc5c8b2135f12d8cdd8f1ca9bcbe6"`
[INFO] [stderr]    Compiling webs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::iter::Peekable`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter::Peekable;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::Chars`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut tokens = Vec::new();
[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: enum is never used: `Token`
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum Token {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tokenize`
[INFO] [stderr]   --> src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn tokenize(input: &str) -> Vec<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "8ff003e2f20ff40e759360ce13de22d9345fc5c8b2135f12d8cdd8f1ca9bcbe6"`
[INFO] running `"docker" "rm" "-f" "8ff003e2f20ff40e759360ce13de22d9345fc5c8b2135f12d8cdd8f1ca9bcbe6"`
[INFO] [stdout] 8ff003e2f20ff40e759360ce13de22d9345fc5c8b2135f12d8cdd8f1ca9bcbe6
[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/asmoaesl/webs:/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] 332a23964c37e8c67fc892a086d9d52b2cb0e6cb526bfbc156e827fea5d68040
[INFO] running `"docker" "start" "-a" "332a23964c37e8c67fc892a086d9d52b2cb0e6cb526bfbc156e827fea5d68040"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/webs-4ea575a654d714dd
[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" "332a23964c37e8c67fc892a086d9d52b2cb0e6cb526bfbc156e827fea5d68040"`
[INFO] running `"docker" "rm" "-f" "332a23964c37e8c67fc892a086d9d52b2cb0e6cb526bfbc156e827fea5d68040"`
[INFO] [stdout] 332a23964c37e8c67fc892a086d9d52b2cb0e6cb526bfbc156e827fea5d68040