[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/applypatch-msg.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb/hooks/applypatch-msg.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb/hooks/: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb/objects/pack: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 3)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-rebase.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb/hooks/pre-rebase.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 4)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-receive.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb/hooks/pre-receive.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 5)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 6)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 7)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 8)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 9)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 10)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 11)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 12)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 13)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 14)
[INFO] cloning repository https://github.com/seb-hyland/fastb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seb-hyland/fastb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09413ae9e809884558cc108b5294ce5c35530bcd
[INFO] checking seb-hyland/fastb against master#9f48dedc9763334a587c66558974635807a113ed for pr-137394
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseb-hyland%2Ffastb" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/seb-hyland/fastb on toolchain 9f48dedc9763334a587c66558974635807a113ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/seb-hyland/fastb
[INFO] finished tweaking git repo https://github.com/seb-hyland/fastb
[INFO] tweaked toml for git repo https://github.com/seb-hyland/fastb written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28e65f57ec50845e1c1c4af85b46a872791d064dd3c21ba1ecbac5a0d5e34f55
[INFO] running `Command { std: "docker" "start" "-a" "28e65f57ec50845e1c1c4af85b46a872791d064dd3c21ba1ecbac5a0d5e34f55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28e65f57ec50845e1c1c4af85b46a872791d064dd3c21ba1ecbac5a0d5e34f55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28e65f57ec50845e1c1c4af85b46a872791d064dd3c21ba1ecbac5a0d5e34f55", kill_on_drop: false }`
[INFO] [stdout] 28e65f57ec50845e1c1c4af85b46a872791d064dd3c21ba1ecbac5a0d5e34f55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2414567a7d5cdb3109f794054a8ff0d8c61d67775c4c86cf236f6d2c1c80af7c
[INFO] running `Command { std: "docker" "start" "-a" "2414567a7d5cdb3109f794054a8ff0d8c61d67775c4c86cf236f6d2c1c80af7c", kill_on_drop: false }`
[INFO] [stderr]     Checking fastb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `from_char` is never used
[INFO] [stdout]  --> src/sequences.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Sequence: Into<u8> + TryFrom<u8, Error = u8>
[INFO] [stdout]   |           -------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 5 |     fn from_char(c: char) -> Result<Self, char>;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_char` is never used
[INFO] [stdout]  --> src/sequences.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Sequence: Into<u8> + TryFrom<u8, Error = u8>
[INFO] [stdout]   |           -------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 5 |     fn from_char(c: char) -> Result<Self, char>;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "2414567a7d5cdb3109f794054a8ff0d8c61d67775c4c86cf236f6d2c1c80af7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2414567a7d5cdb3109f794054a8ff0d8c61d67775c4c86cf236f6d2c1c80af7c", kill_on_drop: false }`
[INFO] [stdout] 2414567a7d5cdb3109f794054a8ff0d8c61d67775c4c86cf236f6d2c1c80af7c