[INFO] cloning repository https://github.com/rudolfschmidt/acc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rudolfschmidt/acc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frudolfschmidt%2Facc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frudolfschmidt%2Facc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fcb0e4d8bb3d795dcfbd57c18831daccd27efd5a
[INFO] checking rudolfschmidt/acc against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frudolfschmidt%2Facc" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rudolfschmidt/acc on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rudolfschmidt/acc
[INFO] finished tweaking git repo https://github.com/rudolfschmidt/acc
[INFO] tweaked toml for git repo https://github.com/rudolfschmidt/acc written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/rudolfschmidt/acc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a762ef76872cc35a8802c1e077698e24e9d35fee68f4d5f09bb8176a1055261f
[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" "a762ef76872cc35a8802c1e077698e24e9d35fee68f4d5f09bb8176a1055261f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a762ef76872cc35a8802c1e077698e24e9d35fee68f4d5f09bb8176a1055261f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a762ef76872cc35a8802c1e077698e24e9d35fee68f4d5f09bb8176a1055261f", kill_on_drop: false }`
[INFO] [stdout] a762ef76872cc35a8802c1e077698e24e9d35fee68f4d5f09bb8176a1055261f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74b6093c7205dadb5048a252b78453e4a22d8f7c336d62ca7a52a418fa2cf7a2
[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" "74b6093c7205dadb5048a252b78453e4a22d8f7c336d62ca7a52a418fa2cf7a2", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking acc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::super::model::Comment`
[INFO] [stdout]  --> src/lib/commands/print/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::super::model::Comment;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::model::Comment`
[INFO] [stdout]  --> src/lib/commands/print/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::super::model::Comment;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `natural`
[INFO] [stdout]   --> src/lib/commands/print/mod.rs:21:28
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn print(items: Vec<Item>, natural: bool) -> Result<(), String> {
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_natural`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `natural`
[INFO] [stdout]   --> src/lib/commands/print/mod.rs:21:28
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn print(items: Vec<Item>, natural: bool) -> Result<(), String> {
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_natural`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `expect_next`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:56:15
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub(super) fn expect_next(tokenizer: &mut Tokenizer) -> Result<(), Error> {
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_any_char`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:80:15
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub(super) fn is_any_char(tokenizer: &Tokenizer) -> bool {
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_char`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:87:15
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub(super) fn is_char(tokenizer: &Tokenizer, char: char) -> bool {
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `expect_next`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:56:15
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub(super) fn expect_next(tokenizer: &mut Tokenizer) -> Result<(), Error> {
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_any_char`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:80:15
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub(super) fn is_any_char(tokenizer: &Tokenizer) -> bool {
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_char`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:87:15
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub(super) fn is_char(tokenizer: &Tokenizer, char: char) -> bool {
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::model::Comment`
[INFO] [stdout]  --> src/lib/commands/print/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::super::model::Comment;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::model::Comment`
[INFO] [stdout]  --> src/lib/commands/print/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::super::model::Comment;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `natural`
[INFO] [stdout]   --> src/lib/commands/print/mod.rs:21:28
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn print(items: Vec<Item>, natural: bool) -> Result<(), String> {
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_natural`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `natural`
[INFO] [stdout]   --> src/lib/commands/print/mod.rs:21:28
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn print(items: Vec<Item>, natural: bool) -> Result<(), String> {
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_natural`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Total`
[INFO] [stdout]   --> src/lib/model.rs:44:2
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Total(MixedAmount),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `expect_next`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:56:15
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub(super) fn expect_next(tokenizer: &mut Tokenizer) -> Result<(), Error> {
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_any_char`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:80:15
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub(super) fn is_any_char(tokenizer: &Tokenizer) -> bool {
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_char`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:87:15
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub(super) fn is_char(tokenizer: &Tokenizer, char: char) -> bool {
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Total`
[INFO] [stdout]   --> src/lib/model.rs:44:2
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Total(MixedAmount),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `expect_next`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:56:15
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub(super) fn expect_next(tokenizer: &mut Tokenizer) -> Result<(), Error> {
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_any_char`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:80:15
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub(super) fn is_any_char(tokenizer: &Tokenizer) -> bool {
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_char`
[INFO] [stdout]   --> src/lib/parsers/tokenizer/chars.rs:87:15
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub(super) fn is_char(tokenizer: &Tokenizer, char: char) -> bool {
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.22s
[INFO] running `Command { std: "docker" "inspect" "74b6093c7205dadb5048a252b78453e4a22d8f7c336d62ca7a52a418fa2cf7a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b6093c7205dadb5048a252b78453e4a22d8f7c336d62ca7a52a418fa2cf7a2", kill_on_drop: false }`
[INFO] [stdout] 74b6093c7205dadb5048a252b78453e4a22d8f7c336d62ca7a52a418fa2cf7a2