[INFO] cloning repository https://github.com/cbclemmer/rust-datascience
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cbclemmer/rust-datascience" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbclemmer%2Frust-datascience", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbclemmer%2Frust-datascience'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6eeb07a8b4ec4981358599bd43fdf9439970bc1
[INFO] testing cbclemmer/rust-datascience against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbclemmer%2Frust-datascience" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cbclemmer/rust-datascience on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cbclemmer/rust-datascience
[INFO] finished tweaking git repo https://github.com/cbclemmer/rust-datascience
[INFO] tweaked toml for git repo https://github.com/cbclemmer/rust-datascience written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cbclemmer/rust-datascience 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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: markov_chain
[INFO] [stderr] warning: unused manifest key: profiel
[INFO] [stderr] warning: unused manifest key: util
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b381a5f961db134d0efcafe6b7ed50c6bf3aba841aa9763a75be7892e6b2d25
[INFO] running `Command { std: "docker" "start" "-a" "9b381a5f961db134d0efcafe6b7ed50c6bf3aba841aa9763a75be7892e6b2d25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b381a5f961db134d0efcafe6b7ed50c6bf3aba841aa9763a75be7892e6b2d25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b381a5f961db134d0efcafe6b7ed50c6bf3aba841aa9763a75be7892e6b2d25", kill_on_drop: false }`
[INFO] [stdout] 9b381a5f961db134d0efcafe6b7ed50c6bf3aba841aa9763a75be7892e6b2d25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55f7a8945a097a25546ff4075d872ccf18915395e65d4aa034bd103996185616
[INFO] running `Command { std: "docker" "start" "-a" "55f7a8945a097a25546ff4075d872ccf18915395e65d4aa034bd103996185616", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: markov_chain
[INFO] [stderr] warning: unused manifest key: profiel
[INFO] [stderr] warning: unused manifest key: util
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.7.1
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling rust-datascience v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> src/markov_chain/mod.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, fs};
[INFO] [stdout]   |                                 ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/markov_chain/file.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, io::{Write, Read, BufReader, BufRead}};
[INFO] [stdout]   |                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/n_gram/config.rs:41:49
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let err_s = "Error parsing: ".to_owned() + c.clone() + "-" + k.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]   --> src/n_gram/config.rs:41:67
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let err_s = "Error parsing: ".to_owned() + c.clone() + "-" + k.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/util.rs:127:29
[INFO] [stdout]     |
[INFO] [stdout] 127 |             last_word = word.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/util.rs:131:25
[INFO] [stdout]     |
[INFO] [stdout] 131 |         last_word = word.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] 
[INFO] [stdout] 
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `rust-datascience` (lib); 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/bin/rustc --crate-name lib --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' -C metadata=9a29abb41478c81f -C extra-filename=-81733a7aa825aced --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern csv=/opt/rustwide/target/debug/deps/libcsv-3f6ed23f95ba8186.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-d1c92c92bd4bddb1.rmeta --extern json=/opt/rustwide/target/debug/deps/libjson-fa93e6d10feafc22.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-7ae897b588a98992.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-0550190b38564c5a.rmeta --extern rustc_demangle=/opt/rustwide/target/debug/deps/librustc_demangle-75d535d2d5742005.rmeta --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "55f7a8945a097a25546ff4075d872ccf18915395e65d4aa034bd103996185616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55f7a8945a097a25546ff4075d872ccf18915395e65d4aa034bd103996185616", kill_on_drop: false }`
[INFO] [stdout] 55f7a8945a097a25546ff4075d872ccf18915395e65d4aa034bd103996185616