[INFO] fetching crate itc 0.1.2...
[INFO] testing itc-0.1.2 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate itc 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate itc 0.1.2 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c0ef45937589bcca95da3c0197494b525dcdf73797821b2366042bd96359a8d8
[INFO] running `Command { std: "docker" "start" "-a" "c0ef45937589bcca95da3c0197494b525dcdf73797821b2366042bd96359a8d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0ef45937589bcca95da3c0197494b525dcdf73797821b2366042bd96359a8d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0ef45937589bcca95da3c0197494b525dcdf73797821b2366042bd96359a8d8", kill_on_drop: false }`
[INFO] [stdout] c0ef45937589bcca95da3c0197494b525dcdf73797821b2366042bd96359a8d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd682d20099a9047b1cf151f7e832ae48415c764673fd6abb54d4ba68babde13
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fd682d20099a9047b1cf151f7e832ae48415c764673fd6abb54d4ba68babde13", kill_on_drop: false }`
[INFO] [stderr]    Compiling itc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 try!(Self::take_char(i, '('));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:74:28
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 let left = try!(Self::take_id_tree(i));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 try!(Self::take_char(i, ','));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 let right = try!(Self::take_id_tree(i));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 try!(Self::take_char(i, ')'));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:84:25
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let n = try!(Self::take_number(i));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:93:17
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 try!(Self::take_char(i, '('));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:94:25
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 let n = try!(Self::take_number(i));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 try!(Self::take_char(i, ','));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:96:28
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 let left = try!(Self::take_event_tree(i));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 try!(Self::take_char(i, ','));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:98:29
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 let right = try!(Self::take_event_tree(i));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 try!(Self::take_char(i, ')'));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:106:25
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 let n = try!(Self::take_number(i));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         try!(Self::take_char(p, '('));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:114:17
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let i = try!(Self::take_id_tree(p));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |         try!(Self::take_char(p, ','));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let e = try!(Self::take_event_tree(p));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         try!(Self::take_char(p, ')'));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "fd682d20099a9047b1cf151f7e832ae48415c764673fd6abb54d4ba68babde13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd682d20099a9047b1cf151f7e832ae48415c764673fd6abb54d4ba68babde13", kill_on_drop: false }`
[INFO] [stdout] fd682d20099a9047b1cf151f7e832ae48415c764673fd6abb54d4ba68babde13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2609e20ca08d9461161d52d6eb2dc475f2e7688b63b68d74ff3f0325e323e529
[INFO] running `Command { std: "docker" "start" "-a" "2609e20ca08d9461161d52d6eb2dc475f2e7688b63b68d74ff3f0325e323e529", kill_on_drop: false }`
[INFO] [stderr]    Compiling itc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 try!(Self::take_char(i, '('));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:74:28
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 let left = try!(Self::take_id_tree(i));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 try!(Self::take_char(i, ','));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 let right = try!(Self::take_id_tree(i));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 try!(Self::take_char(i, ')'));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:84:25
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let n = try!(Self::take_number(i));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:93:17
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 try!(Self::take_char(i, '('));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:94:25
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 let n = try!(Self::take_number(i));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 try!(Self::take_char(i, ','));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:96:28
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 let left = try!(Self::take_event_tree(i));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 try!(Self::take_char(i, ','));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:98:29
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 let right = try!(Self::take_event_tree(i));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 try!(Self::take_char(i, ')'));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:106:25
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 let n = try!(Self::take_number(i));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         try!(Self::take_char(p, '('));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:114:17
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let i = try!(Self::take_id_tree(p));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |         try!(Self::take_char(p, ','));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let e = try!(Self::take_event_tree(p));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         try!(Self::take_char(p, ')'));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 try!(Self::take_char(i, '('));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:74:28
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 let left = try!(Self::take_id_tree(i));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 try!(Self::take_char(i, ','));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 let right = try!(Self::take_id_tree(i));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 try!(Self::take_char(i, ')'));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:84:25
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let n = try!(Self::take_number(i));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:93:17
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 try!(Self::take_char(i, '('));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:94:25
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 let n = try!(Self::take_number(i));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 try!(Self::take_char(i, ','));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:96:28
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 let left = try!(Self::take_event_tree(i));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 try!(Self::take_char(i, ','));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:98:29
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 let right = try!(Self::take_event_tree(i));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ascii_coding.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 try!(Self::take_char(i, ')'));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:106:25
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 let n = try!(Self::take_number(i));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         try!(Self::take_char(p, '('));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:114:17
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let i = try!(Self::take_id_tree(p));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |         try!(Self::take_char(p, ','));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let e = try!(Self::take_event_tree(p));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/ascii_coding.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         try!(Self::take_char(p, ')'));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.60s
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2609e20ca08d9461161d52d6eb2dc475f2e7688b63b68d74ff3f0325e323e529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2609e20ca08d9461161d52d6eb2dc475f2e7688b63b68d74ff3f0325e323e529", kill_on_drop: false }`
[INFO] [stdout] 2609e20ca08d9461161d52d6eb2dc475f2e7688b63b68d74ff3f0325e323e529
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 839e67eb6b02baa371dfe639a47fd83f23361ce9257e3eca7aeeb60480a6b324
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "839e67eb6b02baa371dfe639a47fd83f23361ce9257e3eca7aeeb60480a6b324", kill_on_drop: false }`
[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 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/itc-66a890530f4a801d
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test ascii_coding::tests::event_tree_display ... ok
[INFO] [stdout] test ascii_coding::tests::test_parser_event_tree_string_round_trip ... ok
[INFO] [stdout] test ascii_coding::tests::stamp_display ... ok
[INFO] [stdout] test ascii_coding::tests::test_parser_id_string_round_trip ... ok
[INFO] [stdout] test ascii_coding::tests::test_parser_stamp_string_round_trip ... ok
[INFO] [stdout] test ascii_coding::tests::test_parser_take_id_tree ... ok
[INFO] [stdout] test tests::norm_e_one ... ok
[INFO] [stdout] test ascii_coding::tests::test_parser_take_number ... ok
[INFO] [stdout] test tests::norm_id_1_1_1_is_1 ... ok
[INFO] [stdout] test tests::norm_id_1_1_is_1 ... ok
[INFO] [stdout] test tests::norm_e_two ... ok
[INFO] [stdout] test tests::norm_id_one_is_one ... ok
[INFO] [stdout] test tests::norm_id_0_0_is_0 ... ok
[INFO] [stdout] test tests::norm_id_zero_is_zero ... ok
[INFO] [stdout] test tests::norm_id_0_1_is_0_1 ... ok
[INFO] [stdout] test tests::split_test ... ok
[INFO] [stdout] test ascii_coding::tests::id_tree_display ... ok
[INFO] [stdout] test tests::example ... 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 `Command { std: "docker" "inspect" "839e67eb6b02baa371dfe639a47fd83f23361ce9257e3eca7aeeb60480a6b324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "839e67eb6b02baa371dfe639a47fd83f23361ce9257e3eca7aeeb60480a6b324", kill_on_drop: false }`
[INFO] [stdout] 839e67eb6b02baa371dfe639a47fd83f23361ce9257e3eca7aeeb60480a6b324