[INFO] updating cached repository sinkuu/lambdarepl-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sinkuu/lambdarepl-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sinkuu/lambdarepl-rs" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sinkuu/lambdarepl-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sinkuu/lambdarepl-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sinkuu/lambdarepl-rs" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sinkuu/lambdarepl-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sinkuu/lambdarepl-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1935917f90a8026b7240622f48f09c3eeb6d46d6
[INFO] sha for GitHub repo sinkuu/lambdarepl-rs: 1935917f90a8026b7240622f48f09c3eeb6d46d6
[INFO] validating manifest of sinkuu/lambdarepl-rs on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sinkuu/lambdarepl-rs on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sinkuu/lambdarepl-rs
[INFO] finished frobbing sinkuu/lambdarepl-rs
[INFO] frobbed toml for sinkuu/lambdarepl-rs written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sinkuu/lambdarepl-rs/Cargo.toml
[INFO] started frobbing sinkuu/lambdarepl-rs
[INFO] finished frobbing sinkuu/lambdarepl-rs
[INFO] frobbed toml for sinkuu/lambdarepl-rs written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sinkuu/lambdarepl-rs/Cargo.toml
[INFO] crate sinkuu/lambdarepl-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sinkuu/lambdarepl-rs against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-5/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sinkuu/lambdarepl-rs:/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=forbid" "-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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8cf00e08860093f0968b6b822f528530fc8a4c022ec700baa719b6277178d884
[INFO] running `"docker" "start" "-a" "8cf00e08860093f0968b6b822f528530fc8a4c022ec700baa719b6277178d884"`
[INFO] [stderr]     Checking combine v2.0.0-beta3
[INFO] [stderr]     Checking linefeed v0.1.5
[INFO] [stderr]     Checking lambdarepl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `letter`
[INFO] [stderr]    --> src/expr.rs:222:31
[INFO] [stderr]     |
[INFO] [stderr] 222 |     use combine::char::{char, letter, spaces};
[INFO] [stderr]     |                               ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `ToString` is imported redundantly
[INFO] [stderr]    --> src/expr.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |     use std::string::ToString;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `letter`
[INFO] [stderr]    --> src/expr.rs:222:31
[INFO] [stderr]     |
[INFO] [stderr] 222 |     use combine::char::{char, letter, spaces};
[INFO] [stderr]     |                               ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `ToString` is imported redundantly
[INFO] [stderr]    --> src/expr.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |     use std::string::ToString;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_var`
[INFO] [stderr]   --> src/expr.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn is_var(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(question_mark)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `abs`
[INFO] [stderr]   --> src/expr.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn abs(ident: &str, e: Expr) -> Expr {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `app`
[INFO] [stderr]   --> src/expr.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn app(func: Expr, input: Expr) -> Expr {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_var`
[INFO] [stderr]   --> src/expr.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn is_var(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reduce_to_end`
[INFO] [stderr]    --> src/expr.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn reduce_to_end(self) -> Expr {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(question_mark)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.30s
[INFO] running `"docker" "inspect" "8cf00e08860093f0968b6b822f528530fc8a4c022ec700baa719b6277178d884"`
[INFO] running `"docker" "rm" "-f" "8cf00e08860093f0968b6b822f528530fc8a4c022ec700baa719b6277178d884"`
[INFO] [stdout] 8cf00e08860093f0968b6b822f528530fc8a4c022ec700baa719b6277178d884