[INFO] updating cached repository Connicpu/adventofcode
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Connicpu/adventofcode
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Connicpu/adventofcode" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Connicpu/adventofcode"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Connicpu/adventofcode'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Connicpu/adventofcode" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Connicpu/adventofcode"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Connicpu/adventofcode'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 30e90eae39aff3c2a8e9885f4125a8c51f2c04be
[INFO] sha for GitHub repo Connicpu/adventofcode: 30e90eae39aff3c2a8e9885f4125a8c51f2c04be
[INFO] validating manifest of Connicpu/adventofcode on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Connicpu/adventofcode on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Connicpu/adventofcode
[INFO] finished frobbing Connicpu/adventofcode
[INFO] frobbed toml for Connicpu/adventofcode written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Connicpu/adventofcode/Cargo.toml
[INFO] started frobbing Connicpu/adventofcode
[INFO] finished frobbing Connicpu/adventofcode
[INFO] frobbed toml for Connicpu/adventofcode written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Connicpu/adventofcode/Cargo.toml
[INFO] crate Connicpu/adventofcode already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Connicpu/adventofcode/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Connicpu/adventofcode against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Connicpu/adventofcode:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9d151d808c4fc9bd3b2e2bca54632c1eaf69b21819f6d83e804b63c22c4ec010
[INFO] running `"docker" "start" "-a" "9d151d808c4fc9bd3b2e2bca54632c1eaf69b21819f6d83e804b63c22c4ec010"`
[INFO] [stderr]     Checking adventofcode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/day_1.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/day_3.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/day_1.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/day_3.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `chars` found for type `std::fs::File` in the current scope
[INFO] [stderr]  --> src/day_1.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 |     for c in file.chars() {
[INFO] [stderr]   |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `chars` found for type `std::fs::File` in the current scope
[INFO] [stderr]   --> src/day_1.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 |     for c in file.chars() {
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `chars` found for type `std::fs::File` in the current scope
[INFO] [stderr]   --> src/day_3.rs:12:19
[INFO] [stderr]    |
[INFO] [stderr] 12 |     for c in file.chars() {
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `chars` found for type `std::fs::File` in the current scope
[INFO] [stderr]   --> src/day_3.rs:35:19
[INFO] [stderr]    |
[INFO] [stderr] 35 |     for c in file.chars() {
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `adventofcode`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `chars` found for type `std::fs::File` in the current scope
[INFO] [stderr]  --> src/day_1.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 |     for c in file.chars() {
[INFO] [stderr]   |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `chars` found for type `std::fs::File` in the current scope
[INFO] [stderr]   --> src/day_1.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 |     for c in file.chars() {
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `chars` found for type `std::fs::File` in the current scope
[INFO] [stderr]   --> src/day_3.rs:12:19
[INFO] [stderr]    |
[INFO] [stderr] 12 |     for c in file.chars() {
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `chars` found for type `std::fs::File` in the current scope
[INFO] [stderr]   --> src/day_3.rs:35:19
[INFO] [stderr]    |
[INFO] [stderr] 35 |     for c in file.chars() {
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `adventofcode`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9d151d808c4fc9bd3b2e2bca54632c1eaf69b21819f6d83e804b63c22c4ec010"`
[INFO] running `"docker" "rm" "-f" "9d151d808c4fc9bd3b2e2bca54632c1eaf69b21819f6d83e804b63c22c4ec010"`
[INFO] [stdout] 9d151d808c4fc9bd3b2e2bca54632c1eaf69b21819f6d83e804b63c22c4ec010