[INFO] cloning repository https://github.com/gifnksm/man-sysnopsis-tools
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gifnksm/man-sysnopsis-tools" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgifnksm%2Fman-sysnopsis-tools", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgifnksm%2Fman-sysnopsis-tools'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c7227b7b6f20785eef1c0bb97a8c224fb0e1cee
[INFO] testing gifnksm/man-sysnopsis-tools against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgifnksm%2Fman-sysnopsis-tools" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gifnksm/man-sysnopsis-tools on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gifnksm/man-sysnopsis-tools
[INFO] finished tweaking git repo https://github.com/gifnksm/man-sysnopsis-tools
[INFO] tweaked toml for git repo https://github.com/gifnksm/man-sysnopsis-tools written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/gifnksm/man-sysnopsis-tools already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a78c15fbf153a894c5c64776d406f84bdfcf2f83f0c7f6bcff872df631dc7a0a
[INFO] running `Command { std: "docker" "start" "-a" "a78c15fbf153a894c5c64776d406f84bdfcf2f83f0c7f6bcff872df631dc7a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a78c15fbf153a894c5c64776d406f84bdfcf2f83f0c7f6bcff872df631dc7a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a78c15fbf153a894c5c64776d406f84bdfcf2f83f0c7f6bcff872df631dc7a0a", kill_on_drop: false }`
[INFO] [stdout] a78c15fbf153a894c5c64776d406f84bdfcf2f83f0c7f6bcff872df631dc7a0a
[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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d160a11bf4e3cc1e5e207d222c1347ceed1e57c7d7f927f68d65d76faa5146de
[INFO] running `Command { std: "docker" "start" "-a" "d160a11bf4e3cc1e5e207d222c1347ceed1e57c7d7f927f68d65d76faa5146de", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cmdutil v0.0.1 (/opt/rustwide/workdir/deps/cmdutil)
[INFO] [stderr]    Compiling synop v0.0.1 (/opt/rustwide/workdir/deps/synop)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> deps/synop/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(io)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> deps/synop/src/parser.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let (expr, next_token) = try!(parse_expr(&mut tokenizer));
[INFO] [stdout]   |                              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> deps/synop/src/parser.rs:19:25
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let (term, n) = try!(parse_term(&mut *tokenizer));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> deps/synop/src/parser.rs:34:38
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Some(LBracket) => v.push(try!(parse_bracket(&mut *tokenizer))),
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> deps/synop/src/parser.rs:35:38
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Some(LBrace)   => v.push(try!(parse_brace(&mut *tokenizer))),
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> deps/synop/src/parser.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let (expr, c) = try!(parse_expr(&mut *tokenizer));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> deps/synop/src/parser.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     try!(expect_token(&RBracket, &c));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> deps/synop/src/parser.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let (expr, c) = try!(parse_expr(&mut *tokenizer));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> deps/synop/src/parser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     try!(expect_token(&RBrace, &c));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `chars` found for struct `BufReader` in the current scope
[INFO] [stdout]  --> deps/synop/src/util.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let cs = BufReader::new(reader).chars().map(|c| c.unwrap());
[INFO] [stdout]   |                                     ^^^^^ method not found in `BufReader<R>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `synop`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d160a11bf4e3cc1e5e207d222c1347ceed1e57c7d7f927f68d65d76faa5146de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d160a11bf4e3cc1e5e207d222c1347ceed1e57c7d7f927f68d65d76faa5146de", kill_on_drop: false }`
[INFO] [stdout] d160a11bf4e3cc1e5e207d222c1347ceed1e57c7d7f927f68d65d76faa5146de
