[INFO] cloning repository https://github.com/y011d4/factor-from-random-known-bits
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/y011d4/factor-from-random-known-bits" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy011d4%2Ffactor-from-random-known-bits", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy011d4%2Ffactor-from-random-known-bits'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee9ade6f5a21618e701ffacba320670abd069434
[INFO] testing y011d4/factor-from-random-known-bits against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy011d4%2Ffactor-from-random-known-bits" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/y011d4/factor-from-random-known-bits on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/y011d4/factor-from-random-known-bits
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/y011d4/factor-from-random-known-bits
[INFO] tweaked toml for git repo https://github.com/y011d4/factor-from-random-known-bits written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/y011d4/factor-from-random-known-bits already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3-macros v0.14.1
[INFO] [stderr]   Downloaded az v1.1.1
[INFO] [stderr]   Downloaded pyo3-build-config v0.14.1
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.14.1
[INFO] [stderr]   Downloaded ctrlc v3.1.9
[INFO] [stderr]   Downloaded indoc-impl v0.3.6
[INFO] [stderr]   Downloaded indoc v0.3.6
[INFO] [stderr]   Downloaded pyo3 v0.14.1
[INFO] [stderr]   Downloaded rug v1.12.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55cd0552a95083d52cbad1e4b129a34cb6bfce4c821301ea297b7438dea45d00
[INFO] running `Command { std: "docker" "start" "-a" "55cd0552a95083d52cbad1e4b129a34cb6bfce4c821301ea297b7438dea45d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55cd0552a95083d52cbad1e4b129a34cb6bfce4c821301ea297b7438dea45d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55cd0552a95083d52cbad1e4b129a34cb6bfce4c821301ea297b7438dea45d00", kill_on_drop: false }`
[INFO] [stdout] 55cd0552a95083d52cbad1e4b129a34cb6bfce4c821301ea297b7438dea45d00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4feb2231bce36d4999efb036ffd9b788b6042dee4121116e55a8f469745cbd09
[INFO] running `Command { std: "docker" "start" "-a" "4feb2231bce36d4999efb036ffd9b788b6042dee4121116e55a8f469745cbd09", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling pyo3-build-config v0.14.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling az v1.1.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling rug v1.12.0
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling pyo3 v0.14.1
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling pyo3-macros-backend v0.14.1
[INFO] [stderr]    Compiling ctrlc v3.1.9
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling pyo3-macros v0.14.1
[INFO] [stderr]    Compiling indoc v0.3.6
[INFO] [stderr]    Compiling factor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "4feb2231bce36d4999efb036ffd9b788b6042dee4121116e55a8f469745cbd09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4feb2231bce36d4999efb036ffd9b788b6042dee4121116e55a8f469745cbd09", kill_on_drop: false }`
[INFO] [stdout] 4feb2231bce36d4999efb036ffd9b788b6042dee4121116e55a8f469745cbd09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de6a3b452b3b4afc85673edf500a46d28e279ff9488c440d674b95f87cb5a209
[INFO] running `Command { std: "docker" "start" "-a" "de6a3b452b3b4afc85673edf500a46d28e279ff9488c440d674b95f87cb5a209", 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] [stderr]    Compiling factor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> examples/factor_cui.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `factor` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "de6a3b452b3b4afc85673edf500a46d28e279ff9488c440d674b95f87cb5a209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de6a3b452b3b4afc85673edf500a46d28e279ff9488c440d674b95f87cb5a209", kill_on_drop: false }`
[INFO] [stdout] de6a3b452b3b4afc85673edf500a46d28e279ff9488c440d674b95f87cb5a209