[INFO] crate itc 0.1.2 is already in cache
[INFO] testing itc-0.1.2 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate itc 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate itc 0.1.2 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "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-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4e426b99af1bccb97ca2d3063d20430822c3e153211d8ee67ecc9fc636a177fc
[INFO] running `"docker" "start" "-a" "4e426b99af1bccb97ca2d3063d20430822c3e153211d8ee67ecc9fc636a177fc"`
[INFO] [stderr]    Compiling 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: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "4e426b99af1bccb97ca2d3063d20430822c3e153211d8ee67ecc9fc636a177fc"`
[INFO] running `"docker" "rm" "-f" "4e426b99af1bccb97ca2d3063d20430822c3e153211d8ee67ecc9fc636a177fc"`
[INFO] [stdout] 4e426b99af1bccb97ca2d3063d20430822c3e153211d8ee67ecc9fc636a177fc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b846f3400e775caec1ba353fb04b3729c7d455dee59e4f6b3ef37a6e37826ea8
[INFO] running `"docker" "start" "-a" "b846f3400e775caec1ba353fb04b3729c7d455dee59e4f6b3ef37a6e37826ea8"`
[INFO] [stderr]    Compiling 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: 19 warnings emitted
[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]     Finished test [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `"docker" "inspect" "b846f3400e775caec1ba353fb04b3729c7d455dee59e4f6b3ef37a6e37826ea8"`
[INFO] running `"docker" "rm" "-f" "b846f3400e775caec1ba353fb04b3729c7d455dee59e4f6b3ef37a6e37826ea8"`
[INFO] [stdout] b846f3400e775caec1ba353fb04b3729c7d455dee59e4f6b3ef37a6e37826ea8
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ac65e81b69612f57b3d92e69feab143d18a02e96464f4be2c69a5cec842b0679
[INFO] running `"docker" "start" "-a" "ac65e81b69612f57b3d92e69feab143d18a02e96464f4be2c69a5cec842b0679"`
[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: 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]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/itc-74355ff614abf34b
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test ascii_coding::tests::id_tree_display ... ok
[INFO] [stdout] test ascii_coding::tests::stamp_display ... ok
[INFO] [stdout] test ascii_coding::tests::event_tree_display ... ok
[INFO] [stdout] test ascii_coding::tests::test_parser_stamp_string_round_trip ... ok
[INFO] [stdout] test ascii_coding::tests::test_parser_id_string_round_trip ... ok
[INFO] [stdout] test ascii_coding::tests::test_parser_take_number ... ok
[INFO] [stdout] test tests::example ... ok
[INFO] [stdout] test ascii_coding::tests::test_parser_event_tree_string_round_trip ... ok
[INFO] [stdout] test ascii_coding::tests::test_parser_take_id_tree ... ok
[INFO] [stdout] test tests::norm_e_two ... ok
[INFO] [stdout] test tests::norm_id_0_0_is_0 ... ok
[INFO] [stdout] test tests::norm_e_one ... ok
[INFO] [stdout] test tests::norm_id_0_1_is_0_1 ... ok
[INFO] [stdout] test tests::norm_id_zero_is_zero ... ok
[INFO] [stdout] test tests::norm_id_1_1_is_1 ... ok
[INFO] [stdout] test tests::norm_id_one_is_one ... ok
[INFO] [stdout] test tests::norm_id_1_1_1_is_1 ... ok
[INFO] [stdout] test tests::split_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests itc
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ac65e81b69612f57b3d92e69feab143d18a02e96464f4be2c69a5cec842b0679"`
[INFO] running `"docker" "rm" "-f" "ac65e81b69612f57b3d92e69feab143d18a02e96464f4be2c69a5cec842b0679"`
[INFO] [stdout] ac65e81b69612f57b3d92e69feab143d18a02e96464f4be2c69a5cec842b0679