[INFO] fetching crate recall 0.1.0...
[INFO] extracting crate recall 0.1.0 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/recall/0.1.0
[INFO] extracting crate recall 0.1.0 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/recall/0.1.0
[INFO] validating manifest of recall-0.1.0 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of recall-0.1.0 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing recall-0.1.0
[INFO] finished frobbing recall-0.1.0
[INFO] frobbed toml for recall-0.1.0 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/recall/0.1.0/Cargo.toml
[INFO] started frobbing recall-0.1.0
[INFO] finished frobbing recall-0.1.0
[INFO] frobbed toml for recall-0.1.0 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/recall/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking recall-0.1.0 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-1/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/recall/0.1.0:/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=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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e1565cfbd022008e8c7cbf868a29d5ef594da6e5f008f2c293c7e05a04a675cb
[INFO] running `"docker" "start" "-a" "e1565cfbd022008e8c7cbf868a29d5ef594da6e5f008f2c293c7e05a04a675cb"`
[INFO] [stderr]     Checking recall v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `failure::ResultExt`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use failure::ResultExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `failure::ResultExt`
[INFO] [stderr]  --> src/add.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use failure::ResultExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/browse.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/browse.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `failure::ResultExt`
[INFO] [stderr]  --> src/browse.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use failure::ResultExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `failure::ResultExt`
[INFO] [stderr]  --> src/decks.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use failure::ResultExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `create_dir`
[INFO] [stderr]  --> src/init.rs:1:29
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::{canonicalize, create_dir};
[INFO] [stderr]   |                             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `failure::ResultExt`
[INFO] [stderr]  --> src/new.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use failure::ResultExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `failure::ResultExt`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use failure::ResultExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `failure::ResultExt`
[INFO] [stderr]  --> src/add.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use failure::ResultExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/browse.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/browse.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `failure::ResultExt`
[INFO] [stderr]  --> src/browse.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use failure::ResultExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `failure::ResultExt`
[INFO] [stderr]  --> src/decks.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use failure::ResultExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `create_dir`
[INFO] [stderr]  --> src/init.rs:1:29
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::{canonicalize, create_dir};
[INFO] [stderr]   |                             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `failure::ResultExt`
[INFO] [stderr]  --> src/new.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use failure::ResultExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]  --> src/add.rs:4:18
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn add_card (name: Option<&str>) -> Result<(), ExitFailure> {
[INFO] [stderr]   |                  ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/browse.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let path = env::current_dir()?;
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]  --> src/decks.rs:4:19
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn view_deck (name: Option<&str>) -> Result<(), ExitFailure> {
[INFO] [stderr]   |                   ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]  --> src/new.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let data = r#"
[INFO] [stderr]   |         ^^^^ help: consider prefixing with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]  --> src/new.rs:4:18
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn new_deck (name: Option<&str>) -> Result<(), ExitFailure> {
[INFO] [stderr]   |                  ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]  --> src/add.rs:4:18
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn add_card (name: Option<&str>) -> Result<(), ExitFailure> {
[INFO] [stderr]   |                  ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/browse.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let path = env::current_dir()?;
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]  --> src/decks.rs:4:19
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn view_deck (name: Option<&str>) -> Result<(), ExitFailure> {
[INFO] [stderr]   |                   ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]  --> src/new.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let data = r#"
[INFO] [stderr]   |         ^^^^ help: consider prefixing with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]  --> src/new.rs:4:18
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn new_deck (name: Option<&str>) -> Result<(), ExitFailure> {
[INFO] [stderr]   |                  ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "e1565cfbd022008e8c7cbf868a29d5ef594da6e5f008f2c293c7e05a04a675cb"`
[INFO] running `"docker" "rm" "-f" "e1565cfbd022008e8c7cbf868a29d5ef594da6e5f008f2c293c7e05a04a675cb"`
[INFO] [stdout] e1565cfbd022008e8c7cbf868a29d5ef594da6e5f008f2c293c7e05a04a675cb