[INFO] cloning repository https://github.com/agmcleod/adventofcode-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/agmcleod/adventofcode-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagmcleod%2Fadventofcode-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagmcleod%2Fadventofcode-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9298783b1922e5959e4f58199418dcac7e86d9e5
[INFO] checking agmcleod/adventofcode-2020 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagmcleod%2Fadventofcode-2020" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/agmcleod/adventofcode-2020
[INFO] finished tweaking git repo https://github.com/agmcleod/adventofcode-2020
[INFO] tweaked toml for git repo https://github.com/agmcleod/adventofcode-2020 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/agmcleod/adventofcode-2020 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/agmcleod/adventofcode-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: /workspace/builds/worker-1-tc1/source/read_input/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2024
[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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b26ebfec1ec5486d249ea255812526ee84876209046a9062c74837d3aea3c93
[INFO] running `Command { std: "docker" "start" "-a" "4b26ebfec1ec5486d249ea255812526ee84876209046a9062c74837d3aea3c93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b26ebfec1ec5486d249ea255812526ee84876209046a9062c74837d3aea3c93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b26ebfec1ec5486d249ea255812526ee84876209046a9062c74837d3aea3c93", kill_on_drop: false }`
[INFO] [stdout] 4b26ebfec1ec5486d249ea255812526ee84876209046a9062c74837d3aea3c93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecc6b7ed0a15abf2bee7070097c4fd937b0dc96a92acde114404a353302da61f
[INFO] running `Command { std: "docker" "start" "-a" "ecc6b7ed0a15abf2bee7070097c4fd937b0dc96a92acde114404a353302da61f", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: /opt/rustwide/workdir/read_input/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking read_input v0.1.0 (/opt/rustwide/workdir/read_input)
[INFO] [stderr]     Checking fifteen v0.1.0 (/opt/rustwide/workdir/15)
[INFO] [stderr]     Checking twentyfive v0.1.0 (/opt/rustwide/workdir/25)
[INFO] [stderr]     Checking twentythree v0.1.0 (/opt/rustwide/workdir/23)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     try!(file.read_to_string(&mut text));
[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]  --> read_input/src/lib.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut file = try!(File::open(path));
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     try!(file.read_to_string(&mut text));
[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]  --> read_input/src/lib.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut file = try!(File::open(path));
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking fourteen v0.1.0 (/opt/rustwide/workdir/14)
[INFO] [stderr]     Checking twenty v0.1.0 (/opt/rustwide/workdir/20)
[INFO] [stderr]     Checking four v0.1.0 (/opt/rustwide/workdir/4)
[INFO] [stderr]     Checking eighteen v0.1.0 (/opt/rustwide/workdir/18)
[INFO] [stderr]     Checking one v0.1.0 (/opt/rustwide/workdir/1)
[INFO] [stderr]     Checking ten v0.1.0 (/opt/rustwide/workdir/10)
[INFO] [stderr]     Checking twentyone v0.1.0 (/opt/rustwide/workdir/21)
[INFO] [stderr]     Checking eight v0.1.0 (/opt/rustwide/workdir/8)
[INFO] [stderr]     Checking seven v0.1.0 (/opt/rustwide/workdir/7)
[INFO] [stderr]     Checking twelve v0.1.0 (/opt/rustwide/workdir/12)
[INFO] [stderr]     Checking eleven v0.1.0 (/opt/rustwide/workdir/11)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> 23/src/main.rs:40:21
[INFO] [stdout]    |
[INFO] [stdout] 40 |         if let Some(mut target) = self.data.get_mut(target_cup) {
[INFO] [stdout]    |                     ----^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking six v0.1.0 (/opt/rustwide/workdir/6)
[INFO] [stderr]     Checking thirteen v0.1.0 (/opt/rustwide/workdir/13)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> 23/src/main.rs:40:21
[INFO] [stdout]    |
[INFO] [stdout] 40 |         if let Some(mut target) = self.data.get_mut(target_cup) {
[INFO] [stdout]    |                     ----^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking twentyfour v0.1.0 (/opt/rustwide/workdir/24)
[INFO] [stderr]     Checking three v0.1.0 (/opt/rustwide/workdir/3)
[INFO] [stderr]     Checking nineteen v0.1.0 (/opt/rustwide/workdir/19)
[INFO] [stderr]     Checking sixteen v0.1.0 (/opt/rustwide/workdir/16)
[INFO] [stderr]     Checking twentytwo v0.1.0 (/opt/rustwide/workdir/22)
[INFO] [stderr]     Checking five v0.1.0 (/opt/rustwide/workdir/5)
[INFO] [stderr]     Checking seventeen v0.1.0 (/opt/rustwide/workdir/17)
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]    --> 21/src/main.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut counter = 0;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_counter` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `counter` is never read
[INFO] [stdout]    --> 21/src/main.rs:107:17
[INFO] [stdout]     |
[INFO] [stdout] 107 |                 counter += 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> 19/src/main.rs:36:51
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     captures_to_replace.push(value.clone());
[INFO] [stdout]    |                                                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> 19/src/main.rs:51:41
[INFO] [stdout]    |
[INFO] [stdout] 51 |                         rules.insert(num.clone(), format!("{}+", regex_pattern));
[INFO] [stdout]    |                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> 19/src/main.rs:60:41
[INFO] [stdout]    |
[INFO] [stdout] 60 |                         rules.insert(num.clone(), format!("({})", pattern));
[INFO] [stdout]    |                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> 19/src/main.rs:67:37
[INFO] [stdout]    |
[INFO] [stdout] 67 |                     rules.insert(num.clone(), regex_pattern);
[INFO] [stdout]    |                                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking nine v0.1.0 (/opt/rustwide/workdir/9)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> 19/src/main.rs:36:51
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     captures_to_replace.push(value.clone());
[INFO] [stdout]    |                                                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> 19/src/main.rs:51:41
[INFO] [stdout]    |
[INFO] [stdout] 51 |                         rules.insert(num.clone(), format!("{}+", regex_pattern));
[INFO] [stdout]    |                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> 19/src/main.rs:60:41
[INFO] [stdout]    |
[INFO] [stdout] 60 |                         rules.insert(num.clone(), format!("({})", pattern));
[INFO] [stdout]    |                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> 19/src/main.rs:67:37
[INFO] [stdout]    |
[INFO] [stdout] 67 |                     rules.insert(num.clone(), regex_pattern);
[INFO] [stdout]    |                                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking two v0.1.0 (/opt/rustwide/workdir/2)
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]    --> 21/src/main.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut counter = 0;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_counter` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `counter` is never read
[INFO] [stdout]    --> 21/src/main.rs:107:17
[INFO] [stdout]     |
[INFO] [stdout] 107 |                 counter += 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "ecc6b7ed0a15abf2bee7070097c4fd937b0dc96a92acde114404a353302da61f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecc6b7ed0a15abf2bee7070097c4fd937b0dc96a92acde114404a353302da61f", kill_on_drop: false }`
[INFO] [stdout] ecc6b7ed0a15abf2bee7070097c4fd937b0dc96a92acde114404a353302da61f
