[INFO] fetching crate tc-value 0.1.4...
[INFO] checking tc-value-0.1.4 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate tc-value 0.1.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tc-value 0.1.4 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tc-value 0.1.4
[INFO] finished tweaking crates.io crate tc-value 0.1.4
[INFO] tweaked toml for crates.io crate tc-value 0.1.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc76ddd9aa5f851fbe6bf03a53cd2ed43a7228e616cd1c605328f2d012e653b0
[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" "cc76ddd9aa5f851fbe6bf03a53cd2ed43a7228e616cd1c605328f2d012e653b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc76ddd9aa5f851fbe6bf03a53cd2ed43a7228e616cd1c605328f2d012e653b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc76ddd9aa5f851fbe6bf03a53cd2ed43a7228e616cd1c605328f2d012e653b0", kill_on_drop: false }`
[INFO] [stdout] cc76ddd9aa5f851fbe6bf03a53cd2ed43a7228e616cd1c605328f2d012e653b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c85ed0607f19ca00f87580e9aa128e5a905e6e7467772622708287348c73a7d7
[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" "c85ed0607f19ca00f87580e9aa128e5a905e6e7467772622708287348c73a7d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking safecast v0.1.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking tc-error v0.1.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking collate v0.1.8
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking destream v0.3.2
[INFO] [stderr]     Checking number-general v0.3.6
[INFO] [stderr]     Checking tcgeneric v0.1.2
[INFO] [stderr]     Checking tc-value v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0004]: non-exhaustive patterns: `&I8` not covered
[INFO] [stdout]    --> src/value.rs:155:31
[INFO] [stdout]     |
[INFO] [stdout] 155 |                         match it {
[INFO] [stdout]     |                               ^^ pattern `&I8` not covered
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/number-general-0.3.6/src/class.rs:347:5
[INFO] [stdout]     |
[INFO] [stdout] 347 |     I8,
[INFO] [stdout]     |     -- not covered
[INFO] [stdout]     |
[INFO] [stdout]     = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
[INFO] [stdout]     = note: the matched value is of type `&number_general::IntType`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: `&I8` not covered
[INFO] [stdout]    --> src/value.rs:155:31
[INFO] [stdout]     |
[INFO] [stdout] 155 |                         match it {
[INFO] [stdout]     |                               ^^ pattern `&I8` not covered
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/number-general-0.3.6/src/class.rs:347:5
[INFO] [stdout]     |
[INFO] [stdout] 347 |     I8,
[INFO] [stdout]     |     -- not covered
[INFO] [stdout]     |
[INFO] [stdout]     = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
[INFO] [stdout]     = note: the matched value is of type `&number_general::IntType`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tc-value`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c85ed0607f19ca00f87580e9aa128e5a905e6e7467772622708287348c73a7d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c85ed0607f19ca00f87580e9aa128e5a905e6e7467772622708287348c73a7d7", kill_on_drop: false }`
[INFO] [stdout] c85ed0607f19ca00f87580e9aa128e5a905e6e7467772622708287348c73a7d7