[INFO] cloning repository https://github.com/mbudde/pnc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mbudde/pnc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbudde%2Fpnc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbudde%2Fpnc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe76668a8003245dc8fe250a13ef09fe8f43a46c
[INFO] testing mbudde/pnc against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbudde%2Fpnc" "/workspace/builds/worker-64/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mbudde/pnc on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mbudde/pnc
[INFO] finished tweaking git repo https://github.com/mbudde/pnc
[INFO] tweaked toml for git repo https://github.com/mbudde/pnc written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate git repo https://github.com/mbudde/pnc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e561d378a912c0e54447fd17e370823a60fb1bd084107cd8bfaec99c348c723
[INFO] running `Command { std: "docker" "start" "-a" "9e561d378a912c0e54447fd17e370823a60fb1bd084107cd8bfaec99c348c723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e561d378a912c0e54447fd17e370823a60fb1bd084107cd8bfaec99c348c723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e561d378a912c0e54447fd17e370823a60fb1bd084107cd8bfaec99c348c723", kill_on_drop: false }`
[INFO] [stdout] 9e561d378a912c0e54447fd17e370823a60fb1bd084107cd8bfaec99c348c723
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16fb75b28a8e1b275f38fbc3a166583c56c6a85c42421e29119be877b96f7ec5
[INFO] running `Command { std: "docker" "start" "-a" "16fb75b28a8e1b275f38fbc3a166583c56c6a85c42421e29119be877b96f7ec5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.33
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling rand v0.3.18
[INFO] [stderr]    Compiling atty v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling clap v2.27.1
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling num-bigint v0.1.40
[INFO] [stderr]    Compiling num-complex v0.1.40
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling num-rational v0.1.40
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling backtrace v0.3.4
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling pnc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `new_without_default`
[INFO] [stdout]   --> src/calc.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[allow(new_without_default)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `cyclomatic_complexity`
[INFO] [stdout]   --> src/calc.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |     #[allow(cyclomatic_complexity)]
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `cyclomatic_complexity`
[INFO] [stdout]    --> src/calc.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |     #[allow(cyclomatic_complexity)]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BufRead` is imported redundantly
[INFO] [stdout]    --> src/main.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 11  | use std::io::prelude::*;
[INFO] [stdout]     |     ------------------- the item `BufRead` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 102 |             use std::io::BufRead;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/main.rs:78:36
[INFO] [stdout]    |
[INFO] [stdout] 78 |     if let Some(mut p) = std::env::home_dir() {
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.27s
[INFO] running `Command { std: "docker" "inspect" "16fb75b28a8e1b275f38fbc3a166583c56c6a85c42421e29119be877b96f7ec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16fb75b28a8e1b275f38fbc3a166583c56c6a85c42421e29119be877b96f7ec5", kill_on_drop: false }`
[INFO] [stdout] 16fb75b28a8e1b275f38fbc3a166583c56c6a85c42421e29119be877b96f7ec5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a87c1580560e10b5387f16921fcf7e7f0ccdaaa6e7722cfa149a4dc7b3a1c8a8
[INFO] running `Command { std: "docker" "start" "-a" "a87c1580560e10b5387f16921fcf7e7f0ccdaaa6e7722cfa149a4dc7b3a1c8a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling pnc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `new_without_default`
[INFO] [stdout]   --> src/calc.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[allow(new_without_default)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `cyclomatic_complexity`
[INFO] [stdout]   --> src/calc.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |     #[allow(cyclomatic_complexity)]
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `cyclomatic_complexity`
[INFO] [stdout]    --> src/calc.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |     #[allow(cyclomatic_complexity)]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BufRead` is imported redundantly
[INFO] [stdout]    --> src/main.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 11  | use std::io::prelude::*;
[INFO] [stdout]     |     ------------------- the item `BufRead` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 102 |             use std::io::BufRead;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/main.rs:78:36
[INFO] [stdout]    |
[INFO] [stdout] 78 |     if let Some(mut p) = std::env::home_dir() {
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `Block` found for enum `Operation` in the current scope
[INFO] [stdout]    --> src/dict.rs:174:32
[INFO] [stdout]     |
[INFO] [stdout] 174 |                     Operation::Block(vec!["1", "+"].into_iter().map(|s| s.to_owned()).collect()));
[INFO] [stdout]     |                                ^^^^^ variant or associated item not found in `Operation`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/words.rs:66:1
[INFO] [stdout]     |
[INFO] [stdout] 66  | pub enum Operation {
[INFO] [stdout]     | ------------------ variant or associated item `Block` not found here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `Block` found for enum `Operation` in the current scope
[INFO] [stdout]    --> src/dict.rs:176:44
[INFO] [stdout]     |
[INFO] [stdout] 176 |                    Some(Rc::new(Operation::Block(vec!["1", "+"]
[INFO] [stdout]     |                                            ^^^^^ variant or associated item not found in `Operation`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/words.rs:66:1
[INFO] [stdout]     |
[INFO] [stdout] 66  | pub enum Operation {
[INFO] [stdout]     | ------------------ variant or associated item `Block` not found here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pnc` due to 3 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a87c1580560e10b5387f16921fcf7e7f0ccdaaa6e7722cfa149a4dc7b3a1c8a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a87c1580560e10b5387f16921fcf7e7f0ccdaaa6e7722cfa149a4dc7b3a1c8a8", kill_on_drop: false }`
[INFO] [stdout] a87c1580560e10b5387f16921fcf7e7f0ccdaaa6e7722cfa149a4dc7b3a1c8a8