[INFO] fetching crate itc 0.1.2...
[INFO] checking itc-0.1.2 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate itc 0.1.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate itc 0.1.2 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate itc 0.1.2
[INFO] finished tweaking crates.io crate itc 0.1.2
[INFO] tweaked toml for crates.io crate itc 0.1.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e4230662be66ce03a645a7189b375d244206194e485f549ec64970dc5f601e25
[INFO] running `"docker" "start" "-a" "e4230662be66ce03a645a7189b375d244206194e485f549ec64970dc5f601e25"`
[INFO] [stderr]     Checking itc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:73:17
[INFO] [stderr]    |
[INFO] [stderr] 73 |                 try!(Self::take_char(i, '('));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:74:28
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 let left = try!(Self::take_id_tree(i));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:75:17
[INFO] [stderr]    |
[INFO] [stderr] 75 |                 try!(Self::take_char(i, ','));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:76:29
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 let right = try!(Self::take_id_tree(i));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 try!(Self::take_char(i, ')'));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:84:25
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 let n = try!(Self::take_number(i));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:93:17
[INFO] [stderr]    |
[INFO] [stderr] 93 |                 try!(Self::take_char(i, '('));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:94:25
[INFO] [stderr]    |
[INFO] [stderr] 94 |                 let n = try!(Self::take_number(i));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:95:17
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 try!(Self::take_char(i, ','));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:96:28
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 let left = try!(Self::take_event_tree(i));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:97:17
[INFO] [stderr]    |
[INFO] [stderr] 97 |                 try!(Self::take_char(i, ','));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:98:29
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 let right = try!(Self::take_event_tree(i));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 try!(Self::take_char(i, ')'));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:106:25
[INFO] [stderr]     |
[INFO] [stderr] 106 |                 let n = try!(Self::take_number(i));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         try!(Self::take_char(p, '('));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:114:17
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let i = try!(Self::take_id_tree(p));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(Self::take_char(p, ','));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:116:17
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let e = try!(Self::take_event_tree(p));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         try!(Self::take_char(p, ')'));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:73:17
[INFO] [stderr]    |
[INFO] [stderr] 73 |                 try!(Self::take_char(i, '('));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:74:28
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 let left = try!(Self::take_id_tree(i));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:75:17
[INFO] [stderr]    |
[INFO] [stderr] 75 |                 try!(Self::take_char(i, ','));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:76:29
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 let right = try!(Self::take_id_tree(i));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 try!(Self::take_char(i, ')'));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:84:25
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 let n = try!(Self::take_number(i));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:93:17
[INFO] [stderr]    |
[INFO] [stderr] 93 |                 try!(Self::take_char(i, '('));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:94:25
[INFO] [stderr]    |
[INFO] [stderr] 94 |                 let n = try!(Self::take_number(i));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:95:17
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 try!(Self::take_char(i, ','));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:96:28
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 let left = try!(Self::take_event_tree(i));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:97:17
[INFO] [stderr]    |
[INFO] [stderr] 97 |                 try!(Self::take_char(i, ','));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:98:29
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 let right = try!(Self::take_event_tree(i));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ascii_coding.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 try!(Self::take_char(i, ')'));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:106:25
[INFO] [stderr]     |
[INFO] [stderr] 106 |                 let n = try!(Self::take_number(i));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         try!(Self::take_char(p, '('));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:114:17
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let i = try!(Self::take_id_tree(p));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(Self::take_char(p, ','));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:116:17
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let e = try!(Self::take_event_tree(p));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ascii_coding.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         try!(Self::take_char(p, ')'));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "e4230662be66ce03a645a7189b375d244206194e485f549ec64970dc5f601e25"`
[INFO] running `"docker" "rm" "-f" "e4230662be66ce03a645a7189b375d244206194e485f549ec64970dc5f601e25"`
[INFO] [stdout] e4230662be66ce03a645a7189b375d244206194e485f549ec64970dc5f601e25